Consolidated Schedule of Investments in and Advances to Affiliates (Details)

v3.25.3

Consolidated Schedule of Investments in and Advances to Affiliates (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
		Sep. 30, 2025		Sep. 30, 2024	Sep. 30, 2025		Sep. 30, 2024	Dec. 31, 2024
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ (19,104)		$ 26,382	$ 3,771		$ 17,429
Amount of Unrealized Gain/(Loss)		62,978		$ 21,738	107,217		$ 85,431
Diluted, percentage (as a percent)				20.00%			20.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1],[2],[3]				4,932,669
Ending balance	[4],[5],[6]	5,147,773			5,147,773
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(9,988)		$ 0	(12,964)		$ (352)
Amount of Unrealized Gain/(Loss)		23,461		50,348	57,016		88,007
Amount of Interest, Fees or Dividends Credited to Income					176,481		152,572
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,087,890	[2],[7]	2,006,698
Gross Additions					472,328		358,982
Gross Reductions					224,996		202,589
Ending balance		2,416,174	[5],[8]	2,104,576	2,416,174	[5],[8]	2,104,576
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(2)		32	57,709		786
Amount of Unrealized Gain/(Loss)		13,260		7,181	4,518		22,609
Amount of Interest, Fees or Dividends Credited to Income					71,908		61,813
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					846,798	[2],[9]	615,002
Gross Additions					358,386		340,196
Gross Reductions					282,682		242,905
Ending balance		$ 892,914	[5],[10]	784,092	$ 892,914	[5],[10]	784,092
Investment, Identifier [Axis]: Fidelity Government Fund
Schedule of Investments [Line Items]
Total Rate		3.80%			3.80%			4.14%
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 GRE-LP, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					441		0
Gross Additions					0		441
Gross Reductions					0		0
Ending balance		$ 441		441	441		441
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 HPP-MS, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					64		60
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					383		315
Gross Additions					64		60
Gross Reductions					0		0
Ending balance		447		375	447		375
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					5,466		57
Amount of Unrealized Gain/(Loss)					(4,836)		2,846
Amount of Interest, Fees or Dividends Credited to Income					0		278
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,818		6,050
Gross Additions					4,046		2,903
Gross Reductions					11,069		57
Ending balance		1,795		8,896	1,795		8,896
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		229
Amount of Interest, Fees or Dividends Credited to Income					45		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,226		996
Gross Additions					0		230
Gross Reductions					0		0
Ending balance		1,226		1,226	1,226		1,226
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[11]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[10],[12]	$ 0	0	[5],[10],[12]	$ 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(2,470)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					8,520
Gross Reductions					2,470
Ending balance	[5],[10],[12]	$ 6,050			$ 6,050
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.00%	[10],[12]	18.00%	10.00%	[10],[12]	18.00%	18.00%	[9],[11]
PIK Rate		10.00%	[10],[12],[13]	18.00%	10.00%	[10],[12],[13]	18.00%	18.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(2)
Amount of Interest, Fees or Dividends Credited to Income							67
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 609	[2],[9],[11]	418
Gross Additions							82
Gross Reductions							2
Ending balance		$ 814	[5],[10],[12]	$ 498	$ 814	[5],[10],[12]	$ 498
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[10],[12],[15]	18.00%	10.00%	[10],[12],[15]	18.00%	18.00%	[9],[11]
PIK Rate		10.00%	[10],[12],[13],[15]	18.00%	10.00%	[10],[12],[13],[15]	18.00%	18.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(46)
Amount of Interest, Fees or Dividends Credited to Income							2,164
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 17,365	[2],[9],[11]	13,895
Gross Additions							2,678
Gross Reductions							46
Ending balance		$ 3,109	[5],[10],[12],[15]	$ 16,527	$ 3,109	[5],[10],[12],[15]	16,527
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[10],[12],[15]	12.00%			12.00%
PIK Rate	[10],[12],[13],[15]	12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,109
Gross Reductions					0
Ending balance	[5],[10],[12],[15]	$ 3,109			3,109
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(139)
Amount of Unrealized Gain/(Loss)					3
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					609
Gross Additions					0
Gross Reductions					609
Ending balance		0			0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 6
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(3,303)
Amount of Unrealized Gain/(Loss)					80
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,365
Gross Additions					0
Gross Reductions					17,365
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 7
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
PIK Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,109
Gross Reductions					0
Ending balance		$ 3,109			$ 3,109
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 8
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
PIK Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					34
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					814
Gross Reductions					0
Ending balance		$ 814			814
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[11],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[10],[12],[17]	0	0	[5],[10],[12],[17]	0
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 729			$ 729
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.64%			9.64%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 232			$ 232
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (20)			$ (20)
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.66%			9.66%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 9,922			$ 9,922
Investment, Identifier [Axis]: AMEREQUIP LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				570
Ending balance	[5],[18],[19],[26]	100			100
Investment, Identifier [Axis]: ASC Interests, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(100)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	100
Gross Additions					0		0
Gross Reductions					0		100
Ending balance		0	[5],[8]	0	0	[5],[8]	0
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(196)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	266
Gross Additions					0		0
Gross Reductions					0		196
Ending balance		$ 0	[5],[8]	$ 70	$ 0	[5],[8]	$ 70
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%	[8],[27]	13.00%	13.00%	[8],[27]	13.00%	13.00%	[7],[28]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					40		40
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					400	[2],[7],[28]	400
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 400	[5],[8],[27]	$ 400	$ 400	[5],[8],[27]	$ 400
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[8],[27]	13.00%	13.00%	[8],[27]	13.00%	13.00%	[7],[28]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(161)		0
Amount of Interest, Fees or Dividends Credited to Income					157		164
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,598	[2],[7],[28]	1,597
Gross Additions					0		1
Gross Reductions					235		0
Ending balance		$ 1,363	[5],[8],[27]	$ 1,598	1,363	[5],[8],[27]	1,598
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				850
Ending balance	[5],[18],[19]	$ 920			$ 920
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.53%	[18],[19],[20],[29]		10.53%	[18],[19],[20],[29]		10.85%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21],[29]		6.00%	[18],[19],[20],[21],[29]		6.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 360
Ending balance	[5],[18],[19],[20],[29]	$ 1,620			$ 1,620
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.55%	[18],[19],[20]		9.55%	[18],[19],[20]		9.85%	[23],[25],[30]
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 6,660
Ending balance	[5],[18],[19],[20]	$ 6,660			$ 6,660
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.55%	[18],[19],[20]		11.55%	[18],[19],[20]		11.85%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 6,660
Ending balance	[5],[18],[19],[20]	$ 6,660			6,660
Investment, Identifier [Axis]: ATS Workholding, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(3,726)		0
Amount of Unrealized Gain/(Loss)					3,726		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[23]	0
Gross Additions					3,726		0
Gross Reductions					3,726		0
Ending balance		0		$ 0	0		$ 0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				5.00%			5.00%	5.00%	[7],[23],[32]
Amount of Realized Gain/(Loss)					(1,897)		$ 0
Amount of Unrealized Gain/(Loss)					2,261		(281)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					113	[2],[7],[23],[32]	328
Gross Additions					2,324		167
Gross Reductions					2,437		281
Ending balance		0		$ 214	0		$ 214
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				5.00%			5.00%	5.00%	[7],[23],[28],[32]
Amount of Realized Gain/(Loss)					(2,842)		$ 0
Amount of Unrealized Gain/(Loss)					2,698		(187)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					143	[2],[7],[23],[28],[32]	473
Gross Additions					2,698		0
Gross Reductions					2,841		187
Ending balance		0		$ 286	0		286
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				896
Ending balance	[5],[18],[19],[26]	$ 920			$ 920
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[18],[19],[20],[21],[22]		7.25%	[18],[19],[20],[21],[22]		7.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (90)
Ending balance	[5],[18],[19],[20],[22]	$ (67)			$ (67)
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.40%	[18],[19],[20]		11.40%	[18],[19],[20]		11.73%	[23],[25],[30]
Spread		7.25%	[18],[19],[20],[21]		7.25%	[18],[19],[20],[21]		7.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 24,073
Ending balance	[5],[18],[19],[20]	$ 23,607			$ 23,607
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.00%	[18],[19],[20],[34]		11.00%	[18],[19],[20],[34]		11.00%	[23],[25],[30],[35]
Spread		7.00%	[18],[19],[20],[21],[34]		7.00%	[18],[19],[20],[21],[34]		7.00%	[23],[25],[30],[31],[35]
PIK Rate		1.00%	[13],[18],[19],[20],[34]		1.00%	[13],[18],[19],[20],[34]		1.00%	[14],[23],[25],[30],[35]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[35]				$ 7,773
Ending balance	[5],[18],[19],[20],[34]	$ 7,945			$ 7,945
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.00%	[18],[19],[20],[34]		11.00%	[18],[19],[20],[34]		11.00%	[23],[25],[30],[35]
Spread		7.00%	[18],[19],[20],[21],[34]		7.00%	[18],[19],[20],[21],[34]		7.00%	[23],[25],[30],[31],[35]
PIK Rate		1.00%	[13],[18],[19],[20],[34]		1.00%	[13],[18],[19],[20],[34]		1.00%	[14],[23],[25],[30],[35]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[35]				$ 18,504
Ending balance	[5],[18],[19],[20],[34]	$ 16,996			16,996
Investment, Identifier [Axis]: Airo Purchaser, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 1,521			$ 1,521
Investment, Identifier [Axis]: Airo Purchaser, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (67)			$ (67)
Investment, Identifier [Axis]: Airo Purchaser, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (33)			$ (33)
Investment, Identifier [Axis]: Airo Purchaser, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.80%			9.80%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 27,128			$ 27,128
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.00%	[18],[19],[20],[21],[22]		5.00%	[18],[19],[20],[21],[22]		5.00%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (5)
Ending balance	[5],[18],[19],[20],[22]	$ (3)			$ (3)
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[18],[19],[20]		12.50%	[18],[19],[20]		12.50%	[23],[25],[30]
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 6,162
Ending balance	[5],[18],[19],[20]	$ 5,600			5,600
Investment, Identifier [Axis]: American Nuts, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(2,840)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					8,970
Gross Reductions					2,840
Ending balance	[5],[8],[18]	$ 6,130			$ 6,130
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.94%	[8],[18],[20]		12.94%	[8],[18],[20]		14.49%	[23],[25],[30]
Spread		8.50%	[8],[18],[20],[21]		8.50%	[8],[18],[20],[21]		9.75%	[23],[25],[30],[31]
PIK Rate		12.94%	[8],[13],[18],[20]		12.94%	[8],[13],[18],[20]		14.49%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 5,985
Ending balance	[5],[8],[18],[20]	$ 7,906			$ 7,906
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.94%	[8],[18],[20]		12.94%	[8],[18],[20]		14.49%	[23],[25],[30]
Spread		8.50%	[8],[18],[20],[21]		8.50%	[8],[18],[20],[21]		9.75%	[23],[25],[30],[31]
PIK Rate		12.94%	[8],[13],[18],[20]		12.94%	[8],[13],[18],[20]		14.49%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 9,738
Ending balance	[5],[8],[18],[20]	$ 7,906			7,906
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[32]							16.49%
Spread	[23],[25],[30],[31],[32]							11.75%
PIK Rate	[14],[23],[25],[30],[32]							16.49%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[32]				3,502
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[32]							16.49%
Spread	[23],[25],[30],[31],[32]							11.75%
PIK Rate	[14],[23],[25],[30],[32]							16.49%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[32]				$ 5,697
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		12.94%			12.94%
Spread		8.50%			8.50%
PIK Rate		12.94%			12.94%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					506
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					7,906
Gross Reductions					0
Ending balance		$ 7,906			$ 7,906
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 6
Schedule of Investments [Line Items]
Total Rate		12.94%			12.94%
Spread		8.50%			8.50%
PIK Rate		12.94%			12.94%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					506
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					7,906
Gross Reductions					0
Ending balance		$ 7,906			7,906
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[28],[32]				76
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[28],[32]				374
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Preferred Equity 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					6,769		0
Amount of Unrealized Gain/(Loss)					5,297		3,694
Amount of Interest, Fees or Dividends Credited to Income					171		2,723
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(80,952)		58,515
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Preferred Equity 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					3,453		0
Amount of Unrealized Gain/(Loss)					3,450		(3,694)
Amount of Interest, Fees or Dividends Credited to Income					1,436		(2,723)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					29,588		(71,799)
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					270		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,300	[2],[7]	0
Gross Additions					270		0
Gross Reductions					0		0
Ending balance		5,570	[5],[8]	0	5,570	[5],[8]	0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		850
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	4,860
Gross Additions					0		850
Gross Reductions					0		0
Ending balance		0	[5],[8]	5,710	0	[5],[8]	5,710
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[33]	219
Gross Additions					0		0
Gross Reductions					0		219
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.50%	[8]	13.75%	14.50%	[8]	13.75%	13.75%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					509		551
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,048	[2],[7]	4,084
Gross Additions					9		310
Gross Reductions					150		300
Ending balance		$ 3,907	[5],[8]	$ 4,094	3,907	[5],[8]	4,094
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[8],[17]	0	0	[5],[8],[17]	0
Investment, Identifier [Axis]: Ansira Partners II, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				(187)
Investment, Identifier [Axis]: Ansira Partners II, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.25%
Spread	[23],[25],[30],[31]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				74,279
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Ending balance	[5],[18],[19]	0			0
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				12,552
Ending balance	[5],[18],[19]	15,836			15,836
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Ending balance	[5],[18],[19]	$ 0			$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%	[18],[19]		15.00%	[18],[19]		15.00%	[23],[25]
PIK Rate		15.00%	[13],[18],[19]		15.00%	[13],[18],[19]		15.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 1,997
Ending balance	[5],[18],[19]	$ 2,857			$ 2,857
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.75%	[18],[19],[20]		10.75%	[18],[19],[20]		11.08%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		6.50%	[23],[25],[30],[31]
PIK Rate		10.75%	[13],[18],[19],[20]		10.75%	[13],[18],[19],[20]		11.08%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 8,054
Ending balance	[5],[18],[19],[20]	$ 8,746			8,746
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				2,450
Ending balance	[5],[18],[19],[26]	2,380			2,380
Investment, Identifier [Axis]: B-O-F Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 249			$ 249
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (18)			$ (18)
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.04%			9.04%
Spread	[18],[19],[20],[21]	4.75%			4.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 4,112			$ 4,112
Investment, Identifier [Axis]: B-O-F Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.04%			11.04%
Spread	[18],[19],[20],[21]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 4,112			$ 4,112
Investment, Identifier [Axis]: BDB Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(2,860)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				18,920
Gross Additions					0
Gross Reductions					2,860
Ending balance	[5],[8]	$ 16,060			$ 16,060
Investment, Identifier [Axis]: BDB Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]	12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					35
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,173
Gross Reductions					0
Ending balance	[5],[8]	$ 1,173			1,173
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				3,620
Ending balance	[5],[18],[19]	$ 7,420			$ 7,420
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.01%	[18],[19],[20]		10.01%	[18],[19],[20]		10.68%	[23],[25],[30],[36]
Spread		5.75%	[18],[19],[20],[21]		5.75%	[18],[19],[20],[21]		6.25%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 1,199
Ending balance	[5],[18],[19],[20]	$ 899			$ 899
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.14%			10.14%
Spread		5.75%	[18],[19],[20],[21]		5.75%	[18],[19],[20],[21]		6.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (22)
Ending balance	[5],[18],[19],[20]	$ 2,984			$ 2,984
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.17%	[18],[19],[20]		10.17%	[18],[19],[20]		10.92%	[23],[25],[30]
Spread		5.75%	[18],[19],[20],[21]		5.75%	[18],[19],[20],[21]		6.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 26,173
Ending balance	[5],[18],[19],[20]	$ 25,673			$ 25,673
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.14%			10.14%
Spread	[18],[19],[20],[21]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 9,410			$ 9,410
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.14%			10.14%
Spread	[18],[19],[20],[21]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 14,899			$ 14,899
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					950		1,220
Amount of Interest, Fees or Dividends Credited to Income					1,103		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,860	[2],[7],[23]	4,140
Gross Additions					950		1,220
Gross Reductions					0		0
Ending balance		$ 6,810	[5],[8],[18],[26]	$ 5,360	$ 6,810	[5],[8],[18],[26]	$ 5,360
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		7.00%	[8],[18]	7.00%	7.00%	[8],[18]	7.00%	7.00%	[7],[23]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					37		38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					711	[2],[7],[23]	711
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 711	[5],[8],[18]	$ 711	711	[5],[8],[18]	711
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					3,590		(990)
Amount of Interest, Fees or Dividends Credited to Income					587		643
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,160	[2],[7],[24]	6,150
Gross Additions					3,590		0
Gross Reductions					0		990
Ending balance		8,750	[5],[8],[26]	$ 5,160	8,750	[5],[8],[26]	$ 5,160
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		(6)
Amount of Interest, Fees or Dividends Credited to Income					12		30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					446	[2],[7]	0
Gross Additions					1		451
Gross Reductions					450		6
Ending balance		(3)	[5],[8],[22]	$ 445	(3)	[5],[8],[22]	$ 445
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					15		21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					270	[2],[7]	270
Gross Additions					0		0
Gross Reductions					270		0
Ending balance		$ 0	[5],[8],[22]	$ 270	$ 0	[5],[8],[22]	$ 270
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%	[8]	10.00%	10.00%	[8]	10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(67)
Amount of Interest, Fees or Dividends Credited to Income					838		821
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,529	[2],[7]	10,575
Gross Additions					18		16
Gross Reductions					630		67
Ending balance		$ 9,917	[5],[8]	$ 10,524	9,917	[5],[8]	10,524
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Ending balance	[5],[18],[19],[37]	0			0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[38]				0
Ending balance	[5],[18],[19],[37]	0			0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[38]				0
Ending balance	[5],[18],[19],[37]	$ 0			$ 0
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15],[18],[19],[20]	14.56%			14.56%
Spread		10.25%	[15],[18],[19],[20],[21]		10.25%	[15],[18],[19],[20],[21]		10.25%	[23],[25],[30],[31],[33]
PIK Rate	[13],[15],[18],[19],[20]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (48)
Ending balance	[5],[15],[18],[19],[20]	$ 81			$ 81
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.56%	[15],[18],[19],[20],[39]		14.56%	[15],[18],[19],[20],[39]		15.76%	[23],[25],[30]
Spread		10.25%	[15],[18],[19],[20],[21],[39]		10.25%	[15],[18],[19],[20],[21],[39]		10.25%	[23],[25],[30],[31]
PIK Rate		7.25%	[13],[15],[18],[19],[20],[39]		7.25%	[13],[15],[18],[19],[20],[39]		9.25%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 23,984
Ending balance	[5],[15],[18],[19],[20],[39]	$ 590			$ 590
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15],[18],[19],[20]	14.58%			14.58%
Spread	[15],[18],[19],[20],[21]	10.25%			10.25%
PIK Rate	[13],[15],[18],[19],[20]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[15],[18],[19],[20]	$ 5,070			$ 5,070
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[15],[18],[19],[20],[39]	14.58%			14.58%
Spread	[15],[18],[19],[20],[21],[39]	10.25%			10.25%
PIK Rate	[13],[15],[18],[19],[20],[39]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[15],[18],[19],[20],[39]	$ 16,099			$ 16,099
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				650
Ending balance	[5],[18],[19]	1,060			1,060
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				0
Ending balance	[5],[12],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.89%	[12],[15],[19],[20]		12.89%	[12],[15],[19],[20]		13.17%	[11],[25],[30]
Spread		8.50%	[12],[15],[19],[20],[21]		8.50%	[12],[15],[19],[20],[21]		8.50%	[11],[25],[30],[31]
PIK Rate		11.89%	[12],[13],[15],[19],[20]		11.89%	[12],[13],[15],[19],[20]		12.17%	[11],[14],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 170
Ending balance	[5],[12],[15],[19],[20]	$ 55			$ 55
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%	[12],[15],[19],[20]		15.00%	[12],[15],[19],[20]		15.00%	[11],[25],[30]
Spread		7.50%	[12],[15],[19],[20],[21]		7.50%	[12],[15],[19],[20],[21]		7.50%	[11],[25],[30],[31]
PIK Rate		14.75%	[12],[13],[15],[19],[20]		14.75%	[12],[13],[15],[19],[20]		14.75%	[11],[14],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 2,605
Ending balance	[5],[12],[15],[19],[20]	$ 845			$ 845
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.89%	[12],[15],[19],[20]		12.89%	[12],[15],[19],[20]		13.17%	[11],[25],[30]
Spread		8.50%	[12],[15],[19],[20],[21]		8.50%	[12],[15],[19],[20],[21]		8.50%	[11],[25],[30],[31]
PIK Rate		12.89%	[12],[13],[15],[19],[20]		12.89%	[12],[13],[15],[19],[20]		12.17%	[11],[14],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 3,535
Ending balance	[5],[12],[15],[19],[20]	$ 1,122			1,122
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[16],[25]				0
Ending balance	[5],[12],[17],[19]	0			0
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,510		(1,680)
Amount of Interest, Fees or Dividends Credited to Income					479		30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					310	[2],[9]	1,990
Gross Additions					1,510		0
Gross Reductions					0		1,680
Ending balance		$ 1,820		$ 310	$ 1,820		$ 310
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	10.00%		10.00%	10.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					55		(55)
Amount of Interest, Fees or Dividends Credited to Income					22		24
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					266	[2],[9]	320
Gross Additions					55		0
Gross Reductions					65		55
Ending balance		$ 256		$ 265	256		$ 265
Investment, Identifier [Axis]: Boccella Precast Products LLC., Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[26]	$ 1,820			$ 1,820
Investment, Identifier [Axis]: Boccella Precast Products LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]	10.00%			10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10]	$ 256			$ 256
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%	[8],[26]	8.00%	8.00%	[8],[26]	8.00%	8.00%	[7],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					670		3,690
Amount of Interest, Fees or Dividends Credited to Income					2,479		2,450
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					30,520	[2],[7],[24]	31,020
Gross Additions					670		3,690
Gross Reductions					0		0
Ending balance		$ 31,190	[5],[8],[26]	$ 34,710	31,190	[5],[8],[26]	$ 34,710
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[33]				$ 0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.57%	[8],[20],[40]	13.27%	11.57%	[8],[20],[40]	13.27%
Spread		7.26%	[8],[20],[21],[40]	8.02%	7.26%	[8],[20],[21],[40]	8.02%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(102)		(63)
Amount of Interest, Fees or Dividends Credited to Income					9,032		10,313
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					101,643		96,556
Gross Additions					102		7,599
Gross Reductions					699		1,916
Ending balance		$ 101,046	[5],[8],[20],[40]	$ 102,239	$ 101,046	[5],[8],[20],[40]	102,239
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8],[20]	10.81%			10.81%
Spread	[8],[20],[21]	6.50%			6.50%
PIK Rate
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					4		0
Amount of Interest, Fees or Dividends Credited to Income					166		116
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					6,000		0
Gross Reductions					3,000		0
Ending balance		$ 3,000	[5],[8],[20]	0	3,000	[5],[8],[20]	0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					93
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt, (9)
Schedule of Investments [Line Items]
Total Rate	[7],[30],[41]							12.55%
Spread	[7],[30],[31],[41]							7.99%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[30],[41]				101,643
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				0
Ending balance	[5],[18],[19],[44],[45]	0			0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				500
Ending balance	[5],[18],[19],[44],[45]	$ 550			$ 550
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.44%	[18],[19],[20],[44],[45]		11.44%	[18],[19],[20],[44],[45]		11.65%	[23],[25],[30],[42],[43]
Spread		7.00%	[18],[19],[20],[21],[44],[45]		7.00%	[18],[19],[20],[21],[44],[45]		7.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 571
Ending balance	[5],[18],[19],[20],[44],[45]	$ 571			$ 571
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.44%	[18],[19],[20],[44],[45]		10.44%	[18],[19],[20],[44],[45]		10.74%	[23],[25],[30],[42],[43]
Spread		6.00%	[18],[19],[20],[21],[44],[45]		6.00%	[18],[19],[20],[21],[44],[45]		6.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 6,341
Ending balance	[5],[18],[19],[20],[44],[45]	$ 6,293			$ 6,293
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.44%	[18],[19],[20],[44],[45]		12.44%	[18],[19],[20],[44],[45]		12.74%	[23],[25],[30],[42],[43]
Spread		8.00%	[18],[19],[20],[21],[44],[45]		8.00%	[18],[19],[20],[21],[44],[45]		8.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 6,341
Ending balance	[5],[18],[19],[20],[44],[45]	$ 6,293			$ 6,293
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.25%	[15],[18],[19],[20],[27]		15.25%	[15],[18],[19],[20],[27]		15.25%	[23],[25],[28],[30],[32]
Spread		7.25%	[15],[18],[19],[20],[21],[27]		7.25%	[15],[18],[19],[20],[21],[27]		7.25%	[23],[25],[28],[30],[31],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[30],[32]				$ 761
Ending balance	[5],[15],[18],[19],[20],[27]	$ 0			$ 0
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.25%	[15],[18],[19],[20],[27]		15.25%	[15],[18],[19],[20],[27]		15.25%	[23],[25],[28],[30],[32]
Spread		7.25%	[15],[18],[19],[20],[21],[27]		7.25%	[15],[18],[19],[20],[21],[27]		7.25%	[23],[25],[28],[30],[31],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[30],[32]				$ 750
Ending balance	[5],[15],[18],[19],[20],[27]	$ 0			0
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(190)
Amount of Interest, Fees or Dividends Credited to Income							90
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,680	[7],[24]	5,620
Gross Additions							0
Gross Reductions							189
Ending balance				$ 5,431			$ 5,431
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(1,290)
Amount of Interest, Fees or Dividends Credited to Income					90
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,680
Gross Additions					0
Gross Reductions					1,290
Ending balance	[5],[8],[26]	3,390			3,390
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					324
Gross Reductions					0
Ending balance	[5],[8],[26]	$ 324			$ 324
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.41%	[8],[20]	15.35%	14.41%	[8],[20]	15.35%	14.66%	[7],[30]
Spread		10.00%	[8],[20],[21]	10.00%	10.00%	[8],[20],[21]	10.00%	10.00%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					549		631
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,016	[7],[30]	5,498
Gross Additions					0		14
Gross Reductions					0		372
Ending balance		$ 5,016	[5],[8],[20]	$ 5,140	5,016	[5],[8],[20]	5,140
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(1,000)
Amount of Interest, Fees or Dividends Credited to Income					0		75
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7],[24],[38]	1,000
Gross Additions					0		0
Gross Reductions					0		1,000
Ending balance		0	[5],[8],[37]	0	0	[5],[8],[37]	0
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							767
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							8,813
Gross Additions							0
Gross Reductions							8,813
Ending balance				0			0
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							87
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							1,000
Gross Additions							0
Gross Reductions							1,000
Ending balance				0			0
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16]				0
Ending balance	[5],[8],[17]	0			0
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(1,808)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		1,808
Gross Additions					0		0
Gross Reductions					0		1,808
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(2,482)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		2,482
Gross Additions					0		0
Gross Reductions					0		2,482
Ending balance		0		$ 0	0		$ 0
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25],[42],[46],[47]				3,120
Ending balance	[5],[19],[44],[48],[49]	2,788			2,788
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				4,016
Ending balance	[5],[19],[26],[44],[48],[49]	3,484			3,484
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund V, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				3,809
Ending balance	[5],[19],[26],[44],[48],[49]	$ 5,201			$ 5,201
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6.00%	[10]	6.00%	6.00%	[10]	6.00%	6.00%	[9]
PIK Rate		6.00%	[10],[13]	6.00%	6.00%	[10],[13]	6.00%	6.00%	[9],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10]	$ 0	$ 0	[5],[10]	$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%		15.00%	15.00%		15.00%	15.00%	[9],[28],[32]
PIK Rate		15.00%		15.00%	15.00%		15.00%	15.00%	[9],[14],[28],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(1,025)
Amount of Interest, Fees or Dividends Credited to Income					0		563
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[28],[32]	12,144
Gross Additions					0		0
Gross Reductions					0		12,144
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%		15.00%	15.00%		15.00%	15.00%	[9],[32]
PIK Rate		15.00%		15.00%	15.00%		15.00%	15.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[32]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		15.00%	[10],[15],[27]	15.00%	15.00%	[10],[15],[27]	15.00%	15.00%	[9],[28],[32]
PIK Rate		15.00%	[10],[13],[15],[27]	10.00%	15.00%	[10],[13],[15],[27]	10.00%	15.00%	[9],[14],[28],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(458)		(3,345)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[28],[32]	0
Gross Additions					458		19,571
Gross Reductions					458		3,345
Ending balance		$ 0	[5],[10],[15],[27]	$ 16,226	$ 0	[5],[10],[15],[27]	16,226
Investment, Identifier [Axis]: Buca C, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[10],[15],[27]	15.00%			15.00%
PIK Rate	[10],[13],[15],[27]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[15],[27]	$ 0			$ 0
Investment, Identifier [Axis]: Buca C, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[10],[15],[27]	15.00%			15.00%
PIK Rate	[10],[13],[15],[27]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[15],[27]	$ 0			$ 0
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.43%			9.43%
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.00%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ 0
Ending balance	[5],[18],[19],[20]	$ 1,758			$ 1,758
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.15%	[18],[19],[20]		9.15%	[18],[19],[20]		9.46%	[23],[25],[30]
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 17,915
Ending balance	[5],[18],[19],[20]	$ 16,956			16,956
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25]				2,417
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25]				0
Investment, Identifier [Axis]: CBT Nuggets, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(580)		(590)
Amount of Interest, Fees or Dividends Credited to Income					1,647		1,647
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					49,540	[7],[24]	50,130
Gross Additions					0		0
Gross Reductions					580		590
Ending balance		$ 48,960	[5],[8],[26]	49,540	$ 48,960	[5],[8],[26]	49,540
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.75%	[18],[19],[20],[21],[22]		6.75%	[18],[19],[20],[21],[22]		6.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (47)
Ending balance	[5],[18],[19],[20],[22]	$ (33)			$ (33)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.85%			10.85%
Spread		6.75%	[18],[19],[20],[21]		6.75%	[18],[19],[20],[21]		6.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (47)
Ending balance	[5],[18],[19],[20]	$ 10,406			10,406
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.18%
Spread	[23],[25],[30],[31]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				10,754
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(707)		0
Amount of Unrealized Gain/(Loss)					542		(520)
Amount of Interest, Fees or Dividends Credited to Income					84		30
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,200	[7],[24]	1,980
Gross Additions					542		0
Gross Reductions					1,742		520
Ending balance		$ 0		1,460	$ 0		1,460
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		15.00%	[8],[26]		15.00%	[8],[26]		15.00%	[7],[24]
PIK Rate		15.00%	[8],[13],[26]		15.00%	[8],[13],[26]		15.00%	[7],[14],[24]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		893
Amount of Interest, Fees or Dividends Credited to Income					1,241		188
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,909	[7],[24]	15,695
Gross Additions					1,241		6,520
Gross Reductions					0		0
Ending balance		$ 12,150	[5],[8],[26]	$ 22,215	$ 12,150	[5],[8],[26]	$ 22,215
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		15.00%		15.00%	15.00%		15.00%
PIK Rate		15.00%		15.00%	15.00%		15.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(6,940)		0
Amount of Interest, Fees or Dividends Credited to Income					188		940
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					22,215	[7],[24]	4,601
Gross Additions					0		5,940
Gross Reductions					6,940		0
Ending balance		$ 15,275	[5],[8],[26]	$ 10,541	$ 15,275	[5],[8],[26]	$ 10,541
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.00%		14.00%	14.00%		14.00%	14.00%	[7]
PIK Rate				4.00%			4.00%	4.00%	[7],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(79)
Amount of Interest, Fees or Dividends Credited to Income					48		3,098
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,506	[7]	27,655
Gross Additions					21		594
Gross Reductions					1,539		79
Ending balance		$ (12)	[5],[8],[22]	$ 28,170	$ (12)	[5],[8],[22]	$ 28,170
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%	[8]	14.00%	14.00%	[8]	14.00%	14.00%	[7]
PIK Rate				4.00%			4.00%	4.00%	[7],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					388		0
Amount of Interest, Fees or Dividends Credited to Income					2,864		49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					28,465	[7]	0
Gross Additions					601		1,487
Gross Reductions					3,292		0
Ending balance		$ 25,774	[5],[8]	$ 1,487	25,774	[5],[8]	1,487
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(36)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,740	[2],[9]	4,500
Gross Additions					666		0
Gross Reductions					36		0
Ending balance		$ 5,370	[5],[10]	$ 4,500	$ 5,370	[5],[10]	$ 4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.25%			11.25%	10.56%	[9],[30]
Spread		6.00%	[10],[20],[21],[22]	6.00%	6.00%	[10],[20],[21],[22]	6.00%	6.00%	[9],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					106		94
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					887	[2],[9],[30]	881
Gross Additions					0		2,255
Gross Reductions					928		2,475
Ending balance		$ (41)	[5],[10],[20],[22]	$ 661	$ (41)	[5],[10],[20],[22]	$ 661
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	12.50%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2,140		1,999
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					19,364	[2],[9]	19,906
Gross Additions					2,370		31
Gross Reductions					203		180
Ending balance		$ 21,531	[5],[10]	$ 19,757	21,531	[5],[10]	19,757
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				490
Ending balance	[5],[18],[19]	660			660
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[24]				14,550
Ending balance	[5],[10],[26]	$ 23,530			$ 23,530
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[10]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[33]				$ 0
Ending balance	[5],[10]	$ 1,800			$ 1,800
Investment, Identifier [Axis]: CenterPeak Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%	[10]		15.00%	[10]		15.00%	[9]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9]				$ 21,507
Ending balance	[5],[10]	$ 21,507			21,507
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					8,810		920
Amount of Interest, Fees or Dividends Credited to Income					90		90
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,410	[7]	11,040
Gross Additions					8,810		920
Gross Reductions					0		0
Ending balance		$ 21,220	[5],[8]	$ 11,960	$ 21,220	[5],[8]	$ 11,960
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8.00%	[8],[20],[21],[22]	10.00%	8.00%	[8],[20],[21],[22]	10.00%	9.00%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					9		9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7],[30],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.41%	[8],[20]	15.35%	12.41%	[8],[20]	15.35%	13.66%	[7],[30]
Spread		8.00%	[8],[20],[21]	10.00%	8.00%	[8],[20],[21]	10.00%	9.00%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(12)		207
Amount of Interest, Fees or Dividends Credited to Income					2,599		2,206
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,534	[7],[30]	0
Gross Additions					12		21,974
Gross Reductions					1,082		1,512
Ending balance		$ 24,464	[5],[8],[20]	$ 20,462	24,464	[5],[8],[20]	20,462
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(62)
Amount of Interest, Fees or Dividends Credited to Income							281
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							17,574
Gross Additions							0
Gross Reductions							17,574
Ending balance				0			0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(40)		1,210
Amount of Interest, Fees or Dividends Credited to Income					5,884		3,875
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					33,110	[7],[24]	29,320
Gross Additions					0		1,210
Gross Reductions					40		0
Ending balance		33,070	[5],[8],[26]	30,530	33,070	[5],[8],[26]	30,530
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					220		360
Amount of Interest, Fees or Dividends Credited to Income					69		69
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,550	[7],[24],[38]	2,860
Gross Additions					220		360
Gross Reductions					0		0
Ending balance		$ 3,770	[5],[8],[26],[37]	$ 3,220	$ 3,770	[5],[8],[26],[37]	$ 3,220
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[8],[20],[21],[22]	6.00%	6.00%	[8],[20],[21],[22]	6.00%	6.00%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(67)		(67)
Amount of Interest, Fees or Dividends Credited to Income					74		74
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7],[30],[33]	0
Gross Additions					67		67
Gross Reductions					67		67
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.49%	[8],[20]	13.36%	12.49%	[8],[20]	13.36%	12.74%	[7],[30]
Spread		8.00%	[8],[20],[21]	8.00%	8.00%	[8],[20],[21]	8.00%	8.00%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					9		(1)
Amount of Interest, Fees or Dividends Credited to Income					1,679		1,603
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,620	[7],[30]	15,620
Gross Additions					4,800		1
Gross Reductions					0		1
Ending balance		$ 20,420	[5],[8],[20]	$ 15,620	$ 20,420	[5],[8],[20]	15,620
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.20%	[18],[19],[20],[29]		11.20%	[18],[19],[20],[29]		11.53%	[23],[25],[30],[36]
Spread		6.75%	[18],[19],[20],[21],[29]		6.75%	[18],[19],[20],[21],[29]		7.00%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 4,830
Ending balance	[5],[18],[19],[20],[29]	$ 5,593			$ 5,593
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.23%	[18],[19],[20]		11.23%	[18],[19],[20]		11.93%	[23],[25],[30]
Spread		6.75%	[18],[19],[20],[21]		6.75%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 34,431
Ending balance	[5],[18],[19],[20]	$ 35,887			$ 35,887
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.23%	[18],[19],[20]		11.23%	[18],[19],[20]		11.93%	[23],[25],[30]
Spread		6.75%	[18],[19],[20],[21]		6.75%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,908
Ending balance	[5],[18],[19],[20]	$ 1,988			$ 1,988
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.23%	[18],[19],[20]		11.23%	[18],[19],[20]		11.93%	[23],[25],[30]
Spread		6.75%	[18],[19],[20],[21]		6.75%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 4,610
Ending balance	[5],[18],[19],[20]	$ 4,806			4,806
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(310)		(110)
Amount of Interest, Fees or Dividends Credited to Income					536		483
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,580	[7],[24]	15,690
Gross Additions					0		0
Gross Reductions					310		110
Ending balance		$ 15,270	[5],[8],[26]	$ 15,580	$ 15,270	[5],[8],[26]	$ 15,580
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%	[8]	10.00%	14.00%	[8]	10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(75)		(366)
Amount of Interest, Fees or Dividends Credited to Income					671		793
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,694	[7]	5,694
Gross Additions					75		366
Gross Reductions					75		366
Ending balance		$ 5,694	[5],[8]	$ 5,694	5,694	[5],[8]	5,694
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					3,130		3,640
Amount of Interest, Fees or Dividends Credited to Income					1,157		585
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,990	[2],[7],[24]	5,200
Gross Additions					3,130		3,640
Gross Reductions					0		0
Ending balance		14,120	[5],[8],[26]	8,840	14,120	[5],[8],[26]	8,840
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					320		(179)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					950	[2],[7],[38]	1,129
Gross Additions					320		0
Gross Reductions					0		179
Ending balance		1,270	[5],[8],[37]	950	1,270	[5],[8],[37]	950
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[7],[33]	0
Gross Additions							0
Gross Reductions							0
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[8]	10.00%	10.00%	[8]	10.00%	9.00%	[7]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							138
Amount of Interest, Fees or Dividends Credited to Income							709
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 6,760	[7]	8,422
Gross Additions							109
Gross Reductions							1,400
Ending balance		$ 9,640	[5],[8]	$ 7,131	$ 9,640	[5],[8]	$ 7,131
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%	[8]	10.00%	10.00%	[8]	10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		0
Amount of Interest, Fees or Dividends Credited to Income					72		75
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					973	[2],[7]	1,004
Gross Additions					1		0
Gross Reductions					34		29
Ending balance		$ 940	[5],[8]	$ 975	940	[5],[8]	975
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(36)
Amount of Interest, Fees or Dividends Credited to Income					392
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,760
Gross Additions					0
Gross Reductions					6,760
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 6
Schedule of Investments [Line Items]
Total Rate		10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					80
Amount of Interest, Fees or Dividends Credited to Income					195
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					9,800
Gross Reductions					160
Ending balance		$ 9,640			9,640
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[32]				19
Ending balance	[5],[15],[18],[19],[27]	12			12
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		10,365
Amount of Unrealized Gain/(Loss)					(890)		(7,590)
Amount of Interest, Fees or Dividends Credited to Income					0		1,470
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,850	[2],[9],[24]	16,000
Gross Additions					0		10,365
Gross Reductions					890		23,715
Ending balance		1,960	[5],[10]	$ 2,650	1,960	[5],[10]	$ 2,650
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread				6.00%			6.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							181
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							4,560
Gross Additions							0
Gross Reductions							4,560
Ending balance				$ 0			0
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(50)
Amount of Interest, Fees or Dividends Credited to Income							654
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							19,274
Gross Additions							50
Gross Reductions							19,324
Ending balance				0			0
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,330)		(2,510)
Amount of Interest, Fees or Dividends Credited to Income					1,713		1,568
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					67,810	[2],[7],[24],[38]	72,470
Gross Additions					0		0
Gross Reductions					1,330		2,510
Ending balance		66,480	[5],[8],[26],[37]	69,960	66,480	[5],[8],[26],[37]	69,960
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					6		3
Amount of Interest, Fees or Dividends Credited to Income					218		38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[33]	0
Gross Additions					843		1,264
Gross Reductions					843		1,264
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[8]	12.50%	12.50%	[8]	12.50%	12.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					1		(9)
Amount of Interest, Fees or Dividends Credited to Income					3,630		3,887
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					39,227	[2],[7]	42,073
Gross Additions					3,371		9
Gross Reductions					2,783		2,219
Ending balance		$ 39,815	[5],[8]	$ 39,863	39,815	[5],[8]	39,863
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					850
Amount of Interest, Fees or Dividends Credited to Income					3,270
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[24]				13,570
Gross Additions					850
Gross Reductions					0
Ending balance	[5],[8],[26]	14,420			14,420
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(1,440)
Amount of Interest, Fees or Dividends Credited to Income							1,440
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,400
Gross Additions							0
Gross Reductions							2,400
Ending balance				0			0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							5,440
Amount of Interest, Fees or Dividends Credited to Income							2,239
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							7,680
Gross Additions							5,440
Gross Reductions							0
Ending balance				13,120			13,120
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					6		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%	12.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(28)		370
Amount of Interest, Fees or Dividends Credited to Income					1,131		1,797
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,310	[2],[7]	21,627
Gross Additions					28		423
Gross Reductions					5,559		5,825
Ending balance		$ 8,779	[5],[8]	$ 16,225	8,779	[5],[8]	16,225
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(3,080)		(1,305)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,260	[2],[7]	14,450
Gross Additions					0		1,545
Gross Reductions					3,080		1,305
Ending balance		$ 8,180	[5],[8]	$ 14,690	$ 8,180	[5],[8]	$ 14,690
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.41%	[8],[20]		13.41%	[8],[20]		13.66%	[7],[30]
Spread		9.00%	[8],[20],[21]		9.00%	[8],[20],[21]		9.00%	[7],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[30]				$ 2,903
Ending balance	[5],[8],[20]	$ 4,431			$ 4,431
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.00%		9.00%	9.00%		9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					339		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,903		0
Gross Additions					0		0
Gross Reductions					2,903		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.41%		14.35%	13.41%		14.35%
Spread		9.00%		9.00%	9.00%		9.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					10		368
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		3,454
Gross Additions					4,431		0
Gross Reductions					0		352
Ending balance		$ 4,431		$ 3,102	4,431		3,102
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(270)		496
Amount of Interest, Fees or Dividends Credited to Income					180		180
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,450	[2],[7]	7,454
Gross Additions					0		497
Gross Reductions					270		0
Ending balance		7,180	[5],[8]	7,951	7,180	[5],[8]	7,951
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					4		117
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(21)	[2],[7],[33]	0
Gross Additions					4		2,378
Gross Reductions					0		2,400
Ending balance		$ (17)	[5],[8],[22]	$ (22)	$ (17)	[5],[8],[22]	$ (22)
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%	[8]	13.50%	13.50%	[8]	13.50%	13.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(139)		0
Amount of Interest, Fees or Dividends Credited to Income					1,786		1,793
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,067	[2],[7]	17,034
Gross Additions					25		25
Gross Reductions					138		0
Ending balance		$ 16,954	[5],[8]	$ 17,059	$ 16,954	[5],[8]	17,059
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.61%	[18],[19],[20],[29]		12.61%	[18],[19],[20],[29]		12.93%	[23],[25],[30],[36]
Spread		8.25%	[18],[19],[20],[21],[29]		8.25%	[18],[19],[20],[21],[29]		8.25%	[23],[25],[30],[31],[36]
PIK Rate	[13],[18],[19],[20],[29]	12.61%			12.61%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 7,341
Ending balance	[5],[18],[19],[20],[29]	$ 7,886			$ 7,886
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	12.64%			12.64%
Spread		8.25%	[18],[19],[20],[21]		8.25%	[18],[19],[20],[21]		8.25%	[23],[25],[30],[31],[33]
PIK Rate	[13],[18],[19],[20]	12.64%			12.64%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (113)
Ending balance	[5],[18],[19],[20]	$ 19,175			19,175
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.92%
Spread	[23],[25],[30],[31]							8.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				17,769
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[24],[42],[46],[47]				2,276
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[26],[44],[48],[49]	662			662
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(78)		(51)
Amount of Interest, Fees or Dividends Credited to Income					69		193
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,276		4,352
Gross Additions					0		0
Gross Reductions					1,614		1,974
Ending balance		662		2,378	662		2,378
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc., Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42]				12,596
Gross Additions					0
Gross Reductions					0
Ending balance	[5],[10],[44],[45]	$ 12,596			$ 12,596
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%			13.00%	[9],[42]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2,649
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42]				27,315
Gross Additions					62
Gross Reductions					2,521
Ending balance		$ 24,856			$ 24,856
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10],[44],[45]	13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[44],[45]	$ 24,856			$ 24,856
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					500	[2],[7],[42],[46],[47]	568
Gross Additions					15		0
Gross Reductions					0		38
Ending balance		515	[5],[8],[44],[48],[49]	530	515	[5],[8],[44],[48],[49]	530
Investment, Identifier [Axis]: Core Transformers, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 627			$ 627
Investment, Identifier [Axis]: Core Transformers, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (62)			$ (62)
Investment, Identifier [Axis]: Core Transformers, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (62)			$ (62)
Investment, Identifier [Axis]: Core Transformers, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.66%			9.66%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 6,146			$ 6,146
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.70%	[18],[19],[20],[44],[45]		10.70%	[18],[19],[20],[44],[45]		10.39%	[23],[25],[30],[36],[42],[43]
Spread		6.50%	[18],[19],[20],[21],[44],[45]		6.50%	[18],[19],[20],[21],[44],[45]		6.00%	[23],[25],[30],[31],[36],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36],[42],[43]				$ 1,639
Ending balance	[5],[18],[19],[20],[44],[45]	$ 1,669			$ 1,669
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.81%	[18],[19],[20],[44],[45]		10.81%	[18],[19],[20],[44],[45]		10.36%	[23],[25],[30],[42],[43]
Spread		6.50%	[18],[19],[20],[21],[44],[45]		6.50%	[18],[19],[20],[21],[44],[45]		6.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 10,507
Ending balance	[5],[18],[19],[20],[44],[45]	$ 10,597			$ 10,597
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.69%	[18],[19],[20],[44],[45]		10.69%	[18],[19],[20],[44],[45]		10.40%	[23],[25],[30],[42],[43]
Spread		6.50%	[18],[19],[20],[21],[44],[45]		6.50%	[18],[19],[20],[21],[44],[45]		6.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 6,987
Ending balance	[5],[18],[19],[20],[44],[45]	$ 7,064			$ 7,064
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.06%	[18],[19],[20],[44],[45]		11.06%	[18],[19],[20],[44],[45]		10.61%	[23],[25],[30],[42],[43]
Spread		6.75%	[18],[19],[20],[21],[44],[45]		6.75%	[18],[19],[20],[21],[44],[45]		6.25%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 30,165
Ending balance	[5],[18],[19],[20],[44],[45]	$ 31,264			31,264
Investment, Identifier [Axis]: Creative Foam Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 930			$ 930
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.50%	[18],[19],[20],[21],[22]		6.50%	[18],[19],[20],[21],[22]		5.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (272)
Ending balance	[5],[18],[19],[20],[22]	$ (197)			$ (197)
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[18],[19],[20]		10.50%	[18],[19],[20]		10.11%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		5.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 105,229
Ending balance	[5],[18],[19],[20]	$ 90,356			$ 90,356
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.79%			10.79%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 5,635			$ 5,635
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,960
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					4,460
Gross Reductions					100
Ending balance	[5],[8]	4,360			4,360
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(15,000)		280
Amount of Interest, Fees or Dividends Credited to Income					188		1,104
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,000	[2],[7],[24]	15,000
Gross Additions					0		280
Gross Reductions					15,000		0
Ending balance		0	[5],[8]	15,280	0	[5],[8]	15,280
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					8		8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]	13.00%	13.00%	[8]	13.00%	13.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(531)		0
Amount of Interest, Fees or Dividends Credited to Income					2,728		2,804
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					27,116	[2],[7]	28,389
Gross Additions					42		52
Gross Reductions					621		1,338
Ending balance		$ 26,537	[5],[8]	$ 27,103	26,537	[5],[8]	27,103
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,490		(1,716)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,944	[2],[9]	7,660
Gross Additions					2,490		0
Gross Reductions					0		1,716
Ending balance		$ 8,434	[5],[10]	$ 5,944	$ 8,434	[5],[10]	$ 5,944
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate		15.00%	[10],[26]	15.00%	15.00%	[10],[26]	15.00%	15.00%	[9],[24]
PIK Rate		15.00%	[10],[13],[26]	15.00%	15.00%	[10],[13],[26]	15.00%	15.00%	[9],[14],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					1,290		0
Amount of Interest, Fees or Dividends Credited to Income					377		54
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,240	[2],[9],[24]	0
Gross Additions					1,667		3,122
Gross Reductions					0		0
Ending balance		$ 4,907	[5],[10],[26]	$ 3,122	$ 4,907	[5],[10],[26]	$ 3,122
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[10]	12.00%	12.00%	[10]	12.00%	12.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					4		(115)
Amount of Interest, Fees or Dividends Credited to Income					52		1,659
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					555	[2],[9]	18,800
Gross Additions					5		32
Gross Reductions					0		2,115
Ending balance		$ 560	[5],[10]	$ 16,717	$ 560	[5],[10]	$ 16,717
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[10]	12.00%	12.00%	[10]	12.00%	12.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					56		0
Amount of Interest, Fees or Dividends Credited to Income					1,513		26
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,722	[2],[9]	0
Gross Additions					78		555
Gross Reductions					2,400		0
Ending balance		$ 14,400	[5],[10]	$ 555	$ 14,400	[5],[10]	555
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%	[18],[19]		8.00%	[18],[19]		8.00%	[23],[25]
PIK Rate		8.00%	[13],[18],[19]		8.00%	[13],[18],[19]		8.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 0
Ending balance	[5],[18],[19]	$ 0			$ 0
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10.00%	[18],[19]		10.00%	[18],[19]		10.00%	[23],[24],[25]
PIK Rate		10.00%	[13],[18],[19]		10.00%	[13],[18],[19]		10.00%	[14],[23],[24],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				$ 438
Ending balance	[5],[18],[19]	$ 0			0
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				690
Ending balance	[5],[18],[19]	650			650
Investment, Identifier [Axis]: Datacom, LLC, (Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				493
Investment, Identifier [Axis]: Datacom, LLC, (Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7]							10.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				7,947
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(600)		320
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					240	[2],[7]	70
Gross Additions					360		320
Gross Reductions					600		0
Ending balance		$ 0	[5],[8]	$ 390	$ 0	[5],[8]	$ 390
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%	[8]	7.50%	7.50%	[8]	7.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					50		20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					493		447
Gross Additions					767		451
Gross Reductions					585		540
Ending balance		$ 675	[5],[8]	$ 358	$ 675	[5],[8]	$ 358
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[8]	10.00%	10.00%	[8]	10.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(2,257)		112
Amount of Interest, Fees or Dividends Credited to Income					706		736
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,947		7,587
Gross Additions					102		221
Gross Reductions					2,460		203
Ending balance		$ 5,589	[5],[8]	$ 7,605	5,589	[5],[8]	7,605
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					150		150
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,835	[2],[7],[24]	9,835
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 9,835	[5],[8],[26]	$ 9,835	$ 9,835	[5],[8],[26]	$ 9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.31%	[8],[20]	15.25%	14.31%	[8],[20]	15.25%	14.56%	[7],[30]
Spread		10.00%	[8],[20],[21]	10.00%	10.00%	[8],[20],[21]	10.00%	10.00%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,347		1,641
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,422	[2],[7],[30]	14,690
Gross Additions					33		47
Gross Reductions					660		1,926
Ending balance		$ 11,795	[5],[8],[20]	$ 12,811	11,795	[5],[8],[20]	12,811
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,150		(1,460)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,930	[2],[7]	20,740
Gross Additions					1,150		0
Gross Reductions					0		1,460
Ending balance		$ 19,080	[5],[8]	19,280	$ 19,080	[5],[8]	19,280
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8]	14.00%			14.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					(22)		(22)
Amount of Interest, Fees or Dividends Credited to Income					53		70
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[33]	1,233
Gross Additions					1,042		1,722
Gross Reductions					22		2,955
Ending balance		$ 1,020	[5],[8]	$ 0	$ 1,020	[5],[8]	$ 0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%	[8]	14.00%	14.00%	[8]	14.00%	14.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(29)		(33)
Amount of Interest, Fees or Dividends Credited to Income					2,504		2,682
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					23,902	[2],[7]	25,543
Gross Additions					29		33
Gross Reductions					849		1,264
Ending balance		$ 23,082	[5],[8]	$ 24,312	23,082	[5],[8]	24,312
Investment, Identifier [Axis]: Doral Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					13,000
Gross Reductions					0
Ending balance	[5],[8]	13,000			13,000
Investment, Identifier [Axis]: Doral Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[5],[8],[22]	$ 0			$ 0
Investment, Identifier [Axis]: Doral Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8]	13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2,042
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					29,229
Gross Reductions					0
Ending balance	[5],[8]	$ 29,229			29,229
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners - A, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					48		35
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,447	[2],[9],[42],[46],[47]	2,631
Gross Additions					48		35
Gross Reductions					44		45
Ending balance		2,451	[5],[10],[44],[48],[49]	2,621	2,451	[5],[10],[44],[48],[49]	2,621
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners, LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					150		(921)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,708	[2],[9],[42],[46],[47]	8,443
Gross Additions					150		0
Gross Reductions					139		1,063
Ending balance		7,719	[5],[10],[44],[48],[49]	7,380	7,719	[5],[10],[44],[48],[49]	7,380
Investment, Identifier [Axis]: Dos Rios Stone Products LLC, Class A Preferred Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(1,580)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[23],[38]	1,580
Gross Additions					0		0
Gross Reductions					0		1,580
Ending balance		$ 0	[5],[10],[18],[37]	0	$ 0	[5],[10],[18],[37]	0
Investment, Identifier [Axis]: Dreyfus Government Cash Management
Schedule of Investments [Line Items]
Total Rate		4.12%			4.12%			4.43%
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 0
Ending balance	[5],[18],[19]	$ 0			0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				60
Ending balance	[5],[18],[19]	110			110
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Ending balance	[5],[18],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.26%	[18],[19],[20]		12.26%	[18],[19],[20]		11.46%	[23],[25],[30]
Spread		8.00%	[18],[19],[20],[21]		8.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
PIK Rate		12.26%	[13],[18],[19],[20]		12.26%	[13],[18],[19],[20]		11.46%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 2,220
Ending balance	[5],[18],[19],[20]	$ 2,534			$ 2,534
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.26%	[18],[19],[20]		13.26%	[18],[19],[20]		13.46%	[23],[25],[30]
Spread		9.00%	[18],[19],[20],[21]		9.00%	[18],[19],[20],[21]		9.00%	[23],[25],[30],[31]
PIK Rate	[14],[23],[25],[30]							13.46%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 2,219
Ending balance	[5],[18],[19],[20]	$ 2,463			2,463
Investment, Identifier [Axis]: EIG Fund Investments, LP Interests (EIG Global Private Debt Fund-A, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(2)		32
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					5		44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					369	[2],[9],[24],[42],[47]	760
Gross Additions					0		33
Gross Reductions					332		424
Ending balance		37	[5],[10],[26],[44],[49]	369	37	[5],[10],[26],[44],[49]	369
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.74%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				2,714
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.74%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				4,201
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.74%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				8,380
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.74%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				1,738
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.74%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				9,509
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 1,890			$ 1,890
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (157)			$ (157)
Investment, Identifier [Axis]: Electro Technical Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.66%			9.66%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 50,404			$ 50,404
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(630)		(360)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,730	[2],[7]	6,090
Gross Additions					0		0
Gross Reductions					630		360
Ending balance		5,100	[5],[8]	5,730	5,100	[5],[8]	5,730
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					170		1,330
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,050	[2],[7],[38]	1,670
Gross Additions					170		1,330
Gross Reductions					0		0
Ending balance		$ 3,220	[5],[8],[37]	$ 3,000	$ 3,220	[5],[8],[37]	$ 3,000
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[8],[20],[21],[22]	6.00%	6.00%	[8],[20],[21],[22]	6.00%	6.00%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					7		7
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(5)	[2],[7],[30],[33]	(7)
Gross Additions					2		1
Gross Reductions					0		0
Ending balance		$ (3)	[5],[8],[20],[22]	$ (6)	$ (3)	[5],[8],[20],[22]	$ (6)
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%	12.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,646		1,702
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,969	[2],[7]	18,632
Gross Additions					30		32
Gross Reductions					774		704
Ending balance		$ 17,225	[5],[8]	$ 17,960	$ 17,225	[5],[8]	$ 17,960
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.00%	[8]	9.00%	9.00%	[8]	9.00%	9.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					423		427
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,207	[2],[7]	6,252
Gross Additions					2		2
Gross Reductions					40		36
Ending balance		$ 6,169	[5],[8]	$ 6,218	$ 6,169	[5],[8]	$ 6,218
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.60%	[12],[19],[20]		10.60%	[12],[19],[20]		10.71%	[11],[25],[30]
Spread		6.25%	[12],[19],[20],[21]		6.25%	[12],[19],[20],[21]		6.25%	[11],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 7,670
Ending balance	[5],[12],[19],[20]	$ 6,576			6,576
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund IX, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				1,088
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				846
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund VIII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				1,754
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund X, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				5,051
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund XII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				3,525
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund II, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				1,514
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Flatrock Midstream Fund III, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25],[42],[46],[47]				3,756
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Energy Capital Fund IX, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	1,118			1,118
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	817			817
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Energy Capital Fund VIII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	1,846			1,846
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Energy Capital Fund X, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	4,660			4,660
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Energy Capital Fund XII, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	5,102			5,102
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Flatrock Midstream Fund II, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	15			15
Investment, Identifier [Axis]: EnCap Energy Fund Investments., LP Interests (EnCap Flatrock Midstream Fund III, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[26],[44],[48],[49]	1,878			1,878
Investment, Identifier [Axis]: Escalent, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				910
Ending balance	[5],[18],[19],[26]	$ 910			$ 910
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.99%			9.99%
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (28)
Ending balance	[5],[18],[19],[20]	$ 504			$ 504
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[18],[19],[20]		10.00%	[18],[19],[20]		12.39%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,359
Ending balance	[5],[18],[19],[20]	$ 1,364			$ 1,364
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%	[18],[19],[20]		10.00%	[18],[19],[20]		12.43%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 26,048
Ending balance	[5],[18],[19],[20]	$ 25,716			25,716
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.59%
Spread	[23],[25],[30],[31]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				3,692
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.59%
Spread	[23],[25],[30],[31]							8.00%
PIK Rate	[14],[23],[25],[30]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 47,633
Investment, Identifier [Axis]: Event Holdco, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.26%			11.26%
Spread	[18],[19],[20],[21]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 3,692			$ 3,692
Investment, Identifier [Axis]: Event Holdco, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.26%			11.26%
Spread	[18],[19],[20],[21]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 48,174			$ 48,174
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%		13.00%	13.00%		13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					2,949		0
Amount of Interest, Fees or Dividends Credited to Income					3,894		2,497
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					29,109	[2],[9]	0
Gross Additions					3,691		28,900
Gross Reductions					1,230		0
Ending balance		$ 31,570		$ 28,900	$ 31,570		28,900
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]	13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10]	$ 31,570			$ 31,570
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,300		0
Amount of Interest, Fees or Dividends Credited to Income					750		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,840	[2],[9],[16]	0
Gross Additions					4,300		3,920
Gross Reductions					0		0
Ending balance		15,140	[5],[10],[17],[26]	3,920	15,140	[5],[10],[17],[26]	3,920
Investment, Identifier [Axis]: FRG AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					3,500
Gross Reductions					0
Ending balance	[5],[10]	3,500			3,500
Investment, Identifier [Axis]: FRG AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					20
Ending balance	[5],[10],[22]	$ (20)			$ (20)
Investment, Identifier [Axis]: FRG AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[10]	13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					246
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					10,397
Gross Reductions					0
Ending balance	[5],[10]	$ 10,397			$ 10,397
Investment, Identifier [Axis]: Fidelity Treasury
Schedule of Investments [Line Items]
Total Rate		3.77%			3.77%			4.10%
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					3,450		7,850
Amount of Interest, Fees or Dividends Credited to Income					7,873		3,231
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					35,920	[2],[9],[24]	27,900
Gross Additions					12,200		7,850
Gross Reductions					0		0
Ending balance		$ 48,120	[5],[8],[26]	35,750	$ 48,120	[5],[8],[26]	35,750
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					617
Amount of Interest, Fees or Dividends Credited to Income					2,759
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					66,000
Gross Reductions					0
Ending balance		$ 66,000			66,000
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[22]	$ 0			$ 0
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8]	$ 66,000			$ 66,000
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport Financial SBIC Fund LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42],[46],[47]				2,190
Ending balance	[5],[10],[44],[48],[49]	1,843			1,843
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[24],[42],[46],[47]				1,263
Ending balance	[5],[10],[44],[48],[49]	193			193
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport Financial SBIC Fund LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(347)		(349)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,190		3,012
Gross Additions					0		0
Gross Reductions					347		628
Ending balance		1,843		2,384	1,843		2,384
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund III LP)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(82)		193
Amount of Interest, Fees or Dividends Credited to Income					0		38
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,263		3,704
Gross Additions					0		194
Gross Reductions					1,070		2,005
Ending balance		193		1,893	193		1,893
Investment, Identifier [Axis]: Fuse, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				0
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[24],[25]							12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[24],[25]				932
Investment, Identifier [Axis]: Fuse, LLC., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[12],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Fuse, LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[12],[19]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[12],[19]	$ 558			$ 558
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					400		(920)
Amount of Interest, Fees or Dividends Credited to Income					727		1,294
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,540	[2],[9],[24]	11,460
Gross Additions					400		0
Gross Reductions					0		920
Ending balance		$ 10,940	[5],[10],[26]	$ 10,540	$ 10,940	[5],[10],[26]	$ 10,540
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		8.00%	[10]	8.00%	8.00%	[10]	8.00%	8.00%	[9]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(18)
Amount of Interest, Fees or Dividends Credited to Income							576
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 8,185	[2],[9]	9,345
Gross Additions							18
Gross Reductions							1,178
Ending balance		$ 14,053	[5],[10]	$ 8,185	14,053	[5],[10]	8,185
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(21)
Amount of Interest, Fees or Dividends Credited to Income					185
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,185
Gross Additions					0
Gross Reductions					8,185
Ending balance		0			0
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					185
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		8.00%			8.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					6
Amount of Interest, Fees or Dividends Credited to Income					347
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					14,053
Gross Reductions					0
Ending balance		$ 14,053			14,053
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					930		0
Amount of Interest, Fees or Dividends Credited to Income					4,280		188
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					45,890	[2],[7]	44,440
Gross Additions					930		0
Gross Reductions					0		0
Ending balance		$ 46,820	[5],[8],[26]	$ 44,440	$ 46,820	[5],[8],[26]	$ 44,440
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.41%	[8]	11.35%	10.41%	[8]	11.35%	10.66%	[7]
Spread		6.00%	[8],[21]	6.00%	6.00%	[8],[21]	6.00%	6.00%	[7],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		2
Amount of Interest, Fees or Dividends Credited to Income					252		256
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,146	[2],[7]	2,400
Gross Additions					3		746
Gross Reductions					3		0
Ending balance		$ 3,146	[5],[8]	$ 3,146	$ 3,146	[5],[8]	$ 3,146
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.41%	[8]	13.35%	12.41%	[8]	13.35%	12.66%	[7]
Spread		8.00%	[8],[21]	8.00%	8.00%	[8],[21]	8.00%	8.00%	[7],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(35)		(35)
Amount of Interest, Fees or Dividends Credited to Income					3,862		4,184
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					40,493	[2],[7]	40,493
Gross Additions					35		35
Gross Reductions					35		35
Ending balance		$ 40,493	[5],[8]	$ 40,493	40,493	[5],[8]	40,493
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[36]							11.12%
Spread	[23],[25],[30],[31],[36]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				1,864
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.24%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				10,509
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.24%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				942
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.24%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				225
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.98%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 6,076
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	10.81%			10.81%
Spread	[18],[19],[20],[21],[29]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[29]	$ 4,040			$ 4,040
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.85%			10.85%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 10,419			$ 10,419
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.85%			10.85%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 935			$ 935
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.85%			10.85%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 223			$ 223
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.85%			10.85%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 6,026			$ 6,026
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[36]							10.50%
Spread	[23],[25],[30],[31],[36]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				662
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.55%
Spread	[23],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				279
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.46%
Spread	[23],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,350
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	11.26%			11.26%
Spread	[18],[19],[20],[21],[29]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[29]	$ 419			$ 419
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.24%			11.24%
Spread	[18],[19],[20],[21]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 273			$ 273
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.26%			11.26%
Spread	[18],[19],[20],[21]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 3,271			$ 3,271
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[24]				114,750
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,910		10,660
Amount of Interest, Fees or Dividends Credited to Income					5,388		5,409
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					114,750		96,710
Gross Additions					1,910		10,660
Gross Reductions					0		0
Ending balance		$ 116,660	[5],[8],[26]	$ 107,370	$ 116,660	[5],[8],[26]	$ 107,370
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.50%	[8],[20],[21],[22],[50]	7.00%	7.50%	[8],[20],[21],[22],[50]	7.00%	7.00%	[7],[30],[31],[33],[51]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					5		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[30],[33],[51]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[20],[22],[50]	$ 0	$ 0	[5],[8],[20],[22],[50]	$ 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[8],[20],[50]	10.00%	11.50%	[8],[20],[50]	10.00%	11.00%	[7],[30],[51]
Spread		7.50%	[8],[20],[21],[50]	7.00%	7.50%	[8],[20],[21],[50]	7.00%	7.00%	[7],[30],[31],[51]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(38)		(78)
Amount of Interest, Fees or Dividends Credited to Income					6,384		4,023
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					73,126	[2],[7],[30],[51]	54,078
Gross Additions					38		78
Gross Reductions					2,438		5,678
Ending balance		$ 70,726	[5],[8],[20],[50]	$ 48,478	70,726	[5],[8],[20],[50]	48,478
Investment, Identifier [Axis]: Garreco, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(230)		480
Amount of Interest, Fees or Dividends Credited to Income					0		57
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,060	[2],[7],[24]	1,580
Gross Additions					0		480
Gross Reductions					230		0
Ending balance		1,830	[5],[8]	$ 2,060	1,830	[5],[8]	$ 2,060
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread				8.00%			8.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							92
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,088
Gross Additions							0
Gross Reductions							3,088
Ending balance				$ 0			0
Investment, Identifier [Axis]: Garyline, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				500
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[36]							11.29%
Spread	[23],[25],[30],[31],[36]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				8,118
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.34%
Spread	[23],[25],[30],[31]							6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				32,146
Investment, Identifier [Axis]: Garyline, LLC., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 450			$ 450
Investment, Identifier [Axis]: Garyline, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	11.20%			11.20%
Spread	[18],[19],[20],[21],[29]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[29]	$ 3,080			$ 3,080
Investment, Identifier [Axis]: Garyline, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.14%			11.14%
Spread	[18],[19],[20],[21]	7.00%			7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 28,789			$ 28,789
Investment, Identifier [Axis]: GradeEight Corp., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				1,365
Ending balance	[5],[18],[19]	$ 960			$ 960
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[18],[19],[20],[21],[22]		6.25%	[18],[19],[20],[21],[22]		7.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (95)
Ending balance	[5],[18],[19],[20],[22]	$ (80)			$ (80)
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 2
Schedule of Investments [Line Items]
Spread		7.25%	[18],[19],[20],[21],[22]		7.25%	[18],[19],[20],[21],[22]		7.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (48)
Ending balance	[5],[18],[19],[20],[22]	$ (40)			$ (40)
Investment, Identifier [Axis]: GradeEight Corp., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.47%	[18],[19],[20],[52]		11.47%	[18],[19],[20],[52]		11.74%	[23],[25],[30],[53]
Spread		7.25%	[18],[19],[20],[21],[52]		7.25%	[18],[19],[20],[21],[52]		7.25%	[23],[25],[30],[31],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[53]				$ 31,002
Ending balance	[5],[18],[19],[20],[52]	$ 30,270			30,270
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					562
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42],[43]				888
Gross Additions					562
Gross Reductions					0
Ending balance	[5],[10],[37],[44],[45]	1,450			1,450
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(130)		6,100
Amount of Interest, Fees or Dividends Credited to Income					500		1,310
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,730	[2],[9],[24],[42],[43]	9,070
Gross Additions					0		6,100
Gross Reductions					130		0
Ending balance		$ 14,600	[5],[10],[26],[44],[45]	$ 15,170	$ 14,600	[5],[10],[26],[44],[45]	$ 15,170
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.62%	[10],[21],[22],[44],[45]	7.63%	7.62%	[10],[21],[22],[44],[45]	7.63%	7.63%	[9],[31],[33],[42],[43]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(42)		44
Amount of Interest, Fees or Dividends Credited to Income					26		120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					7		0
Gross Reductions					41		0
Ending balance		$ (34)	[5],[10],[22],[44],[45]	$ 0	$ (34)	[5],[10],[22],[44],[45]	$ 0
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.94%	[10],[44],[45]	12.88%	11.94%	[10],[44],[45]	12.88%	12.19%	[9],[42],[43]
Spread		7.62%	[10],[21],[44],[45]	7.63%	7.62%	[10],[21],[44],[45]	7.63%	7.63%	[9],[31],[42],[43]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(325)		349
Amount of Interest, Fees or Dividends Credited to Income					3,523		4,219
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					39,000	[2],[9],[42],[43]	0
Gross Additions					69		40,000
Gross Reductions					1,825		500
Ending balance		$ 37,244	[5],[10],[44],[45]	$ 39,500	37,244	[5],[10],[44],[45]	39,500
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, ESecured Debt 1
Schedule of Investments [Line Items]
Spread	[7],[30],[31],[32],[33]							9.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[30],[32],[33]				0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(3,681)		0
Amount of Unrealized Gain/(Loss)					3,681		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					3,681		0
Gross Reductions					3,681		0
Ending balance		0		0	0		0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					(5,600)		0
Amount of Unrealized Gain/(Loss)					5,600		(2,460)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	2,460
Gross Additions					5,600		0
Gross Reductions					5,600		2,460
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.50%		9.50%	9.50%		9.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	0		$ 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12.50%			12.50%	12.50%	[7],[32]
PIK Rate				12.50%			12.50%	12.50%	[7],[14],[32]
Amount of Realized Gain/(Loss)					(231)		$ 0
Amount of Unrealized Gain/(Loss)					782		(882)
Amount of Interest, Fees or Dividends Credited to Income					0		76
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,518	[2],[7],[32]	2,284
Gross Additions					623		0
Gross Reductions					2,141		882
Ending balance		0		$ 1,402	0		1,402
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							8.75%
Spread	[23],[25],[30],[31]							3.50%
PIK Rate	[14],[23],[25],[30]							2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				2,327
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[32]							2.50%
PIK Rate	[14],[23],[25],[32]							2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[32]				418
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 0			$ 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[52]	13.34%			13.34%
Spread	[18],[19],[20],[21],[52]	9.00%			9.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[52]	$ 91			$ 91
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.01%			9.01%
Spread	[18],[19],[20],[21]	3.50%			3.50%
PIK Rate	[13],[18],[19],[20]	2.50%			2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 2,631			$ 2,631
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15],[18],[19]	2.50%			2.50%
PIK Rate	[13],[15],[18],[19]	2.50%			2.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[15],[18],[19]	$ 72			$ 72
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				(35)
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.86%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				6,666
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.86%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				4,713
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.86%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				16,453
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.86%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				8,039
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[25],[30],[42],[43]							11.28%
Spread	[11],[25],[30],[31],[42],[43]							6.50%
PIK Rate	[11],[14],[25],[30],[42],[43]							3.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30],[42],[43]				$ 26,096
Investment, Identifier [Axis]: HOWLCO LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[12],[19],[20],[44],[45]	10.97%			10.97%
Spread	[12],[19],[20],[21],[44],[45]	6.50%			6.50%
PIK Rate	[12],[13],[19],[20],[44],[45]	3.50%			3.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[12],[19],[20],[44],[45]	$ 26,375			$ 26,375
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							247
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							4,225
Gross Additions							247
Gross Reductions							0
Ending balance				4,472			4,472
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.) 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					194
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,472
Gross Additions					194
Gross Reductions					534
Ending balance		4,132			4,132
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.) 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					519
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,861
Gross Additions					1,396
Gross Reductions					0
Ending balance		7,257			7,257
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 4, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							329
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,773
Gross Additions							1,211
Gross Reductions							0
Ending balance				4,984			4,984
Investment, Identifier [Axis]: HPEP 423 COR, LP, LP Interests (423 COR, L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,057		818
Amount of Interest, Fees or Dividends Credited to Income					0		88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,187		1,869
Gross Additions					1,057		2,318
Gross Reductions					0		0
Ending balance		5,244		4,187	5,244		4,187
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 GRE-LP, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[42],[46],[47]				441
Ending balance	[5],[8],[44],[48],[49]	441			441
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 HPP-MS, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[42],[46],[47]				383
Ending balance	[5],[8],[44],[48],[49]	447			447
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[24],[42],[46],[47]				8,818
Ending balance	[5],[8],[44],[48],[49]	1,795			1,795
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 AER II, LP)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[19],[44],[48],[49]	1,526			1,526
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[24],[42],[46],[47]				4,187
Ending balance	[5],[8],[44],[48],[49]	5,244			5,244
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 HAR, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42],[46],[47]				1,226
Ending balance	[5],[10],[44],[48],[49]	1,226			1,226
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42],[46],[47]				4,472
Ending balance	[5],[10],[44],[48],[49]	4,132			4,132
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 4, L.P.)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[42],[46],[47]				5,861
Ending balance	[5],[10],[44],[48],[49]	7,257			7,257
Investment, Identifier [Axis]: Harrison Hydra-Gen, Ltd., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					260		1,970
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,010	[2],[7],[24]	4,660
Gross Additions					260		1,970
Gross Reductions					0		0
Ending balance		7,270	[5],[8],[26]	6,630	7,270	[5],[8],[26]	6,630
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,300		1,540
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,260	[2],[9],[24]	17,460
Gross Additions					4,300		1,540
Gross Reductions					0		0
Ending balance		24,560	[5],[10],[26]	19,000	24,560	[5],[10],[26]	19,000
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					220		80
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,070	[2],[9],[38]	920
Gross Additions					220		80
Gross Reductions					0		0
Ending balance		$ 1,290	[5],[10],[37]	$ 1,000	$ 1,290	[5],[10],[37]	$ 1,000
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.48%	[10],[20]	11.35%	10.48%	[10],[20]	11.35%	10.73%	[9],[30]
Spread		6.00%	[10],[20],[21]	6.00%	6.00%	[10],[20],[21]	6.00%	6.00%	[9],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		(1)
Amount of Interest, Fees or Dividends Credited to Income					254		224
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,645	[2],[9],[30]	1,974
Gross Additions					4,725		5,945
Gross Reductions					5,200		5,361
Ending balance		$ 2,170	[5],[10],[20]	$ 2,558	$ 2,170	[5],[10],[20]	$ 2,558
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[10]	12.50%	12.00%	[10]	12.50%	12.50%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(41)		(41)
Amount of Interest, Fees or Dividends Credited to Income					4,293		4,347
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					45,256	[2],[9]	45,256
Gross Additions					41		41
Gross Reductions					41		41
Ending balance		$ 45,256	[5],[10]	$ 45,256	45,256	[5],[10]	45,256
Investment, Identifier [Axis]: Hornblower Sub, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[36]							9.92%
Spread	[23],[25],[30],[31],[36]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				2,407
Investment, Identifier [Axis]: Hornblower Sub, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.11%
Spread	[23],[25],[30],[31]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 30,701
Investment, Identifier [Axis]: Hornblower Sub, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	9.65%			9.65%
Spread	[18],[19],[20],[21],[29]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[29]	$ 4,112			$ 4,112
Investment, Identifier [Axis]: Hornblower Sub, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.80%			9.80%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 32,228			$ 32,228
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					420		(10)
Amount of Interest, Fees or Dividends Credited to Income					180		83
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,930	[2],[9],[24]	3,340
Gross Additions					420		0
Gross Reductions					0		10
Ending balance		$ 4,350	[5],[10],[26]	$ 3,330	$ 4,350	[5],[10],[26]	$ 3,330
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt
Schedule of Investments [Line Items]
Total Rate		10.00%	[10]	8.00%	10.00%	[10]	8.00%	10.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					60		60
Amount of Interest, Fees or Dividends Credited to Income					227		213
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,940	[2],[9]	2,880
Gross Additions					60		60
Gross Reductions					0		0
Ending balance		$ 3,000	[5],[10]	$ 2,940	3,000	[5],[10]	2,940
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							13.10%
Spread	[23],[25],[30],[31]							8.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 7,200
Investment, Identifier [Axis]: Hybrid Promotions, LLC., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	12.54%			12.54%
Spread	[18],[19],[20],[21]	8.25%			8.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 7,200			$ 7,200
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(7,107)
Amount of Unrealized Gain/(Loss)							$ 6,710
Profits, percentage (as a percent)				21.75%			21.75%
Amount of Interest, Fees or Dividends Credited to Income							$ 429
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							13,490
Gross Additions							0
Gross Reductions							13,490
Ending balance				$ 0			0
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,540		470
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,230	[2],[7]	14,400
Gross Additions					4,540		470
Gross Reductions					0		0
Ending balance		$ 20,770	[5],[8]	$ 14,870	$ 20,770	[5],[8]	$ 14,870
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]	13.00%	13.00%	[8]	13.00%	13.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					22		0
Amount of Interest, Fees or Dividends Credited to Income					173		61
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,572	[2],[7]	(35)
Gross Additions					28		1,605
Gross Reductions					0		0
Ending balance		$ 1,600	[5],[8]	$ 1,570	$ 1,600	[5],[8]	$ 1,570
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]	13.00%	13.00%	[8]	13.00%	13.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					192		0
Amount of Interest, Fees or Dividends Credited to Income					3,512		3,662
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					35,257	[2],[7]	36,934
Gross Additions					247		62
Gross Reductions					440		1,320
Ending balance		$ 35,064	[5],[8]	$ 35,676	$ 35,064	[5],[8]	$ 35,676
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.75%	[12],[19],[20],[21],[22]		5.75%	[12],[19],[20],[21],[22]		5.75%	[11],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30],[33]				$ 0
Ending balance	[5],[12],[19],[20],[22]	$ 0			$ 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.01%	[12],[19],[20]		10.01%	[12],[19],[20]		10.21%	[11],[25],[30]
Spread		5.75%	[12],[19],[20],[21]		5.75%	[12],[19],[20],[21]		5.75%	[11],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 10,154
Ending balance	[5],[12],[19],[20]	$ 10,154			$ 10,154
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.01%	[12],[19],[20]		10.01%	[12],[19],[20]		10.21%	[11],[25],[30]
Spread		5.75%	[12],[19],[20],[21]		5.75%	[12],[19],[20],[21]		5.75%	[11],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 4,903
Ending balance	[5],[12],[19],[20]	$ 4,865			$ 4,865
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.46%	[10],[20]	15.53%	11.46%	[10],[20]	15.53%	13.78%	[9],[30]
Spread		7.00%	[10],[20],[21]	9.00%	7.00%	[10],[20],[21]	9.00%	9.00%	[9],[30],[31]
PIK Rate				1.00%			1.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		0
Amount of Interest, Fees or Dividends Credited to Income					114		124
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,180	[2],[9],[30]	816
Gross Additions					3		602
Gross Reductions					3		236
Ending balance		$ 1,180	[5],[10],[20]	$ 1,182	$ 1,180	[5],[10],[20]	$ 1,182
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.46%	[10],[20]	15.53%	11.46%	[10],[20]	15.53%	13.78%	[9],[30]
Spread		7.00%	[10],[20],[21]	9.00%	7.00%	[10],[20],[21]	9.00%	9.00%	[9],[30],[31]
PIK Rate				1.00%			1.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							98
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 994	[2],[9],[30]	697
Gross Additions							297
Gross Reductions							0
Ending balance		$ 2,360	[5],[10],[20]	$ 994	$ 2,360	[5],[10],[20]	$ 994
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.46%	[10],[20]	14.53%	11.46%	[10],[20]	14.53%	12.78%	[9],[30]
Spread		7.00%	[10],[20],[21]	8.00%	7.00%	[10],[20],[21]	8.00%	8.00%	[9],[30],[31]
PIK Rate				1.00%			1.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(200)		0
Amount of Interest, Fees or Dividends Credited to Income					614		711
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,438	[2],[9],[30]	3,430
Gross Additions					697		259
Gross Reductions					200		0
Ending balance		$ 4,935	[5],[10],[20]	$ 3,689	$ 4,935	[5],[10],[20]	$ 3,689
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.46%	[10],[20]	16.53%	11.46%	[10],[20]	16.53%	14.78%	[9],[30]
Spread		7.00%	[10],[20],[21]	10.00%	7.00%	[10],[20],[21]	10.00%	10.00%	[9],[30],[31]
PIK Rate				1.00%			1.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(200)		0
Amount of Interest, Fees or Dividends Credited to Income					659		778
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,438	[2],[9],[30]	3,430
Gross Additions					697		259
Gross Reductions					200		0
Ending balance		$ 4,935	[5],[10],[20]	$ 3,689	$ 4,935	[5],[10],[20]	3,689
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[10],[20]	11.46%			11.46%
Spread	[10],[20],[21]	7.00%			7.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					6
Amount of Interest, Fees or Dividends Credited to Income					64
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,770
Gross Reductions					0
Ending balance	[5],[10],[20]	$ 1,770			1,770
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 7
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(12)
Amount of Interest, Fees or Dividends Credited to Income					77
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					994
Gross Additions					0
Gross Reductions					994
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 8
Schedule of Investments [Line Items]
Total Rate		11.46%			11.46%
Spread		7.00%			7.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					19
Amount of Interest, Fees or Dividends Credited to Income					78
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,360
Gross Reductions					0
Ending balance		$ 2,360			2,360
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					7,790		1,189
Amount of Interest, Fees or Dividends Credited to Income					1,969		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,690	[2],[9],[16]	2,091
Gross Additions					7,790		1,189
Gross Reductions					0		0
Ending balance		13,480	[5],[10],[17],[26]	3,280	13,480	[5],[10],[17],[26]	3,280
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				1,020
Ending balance	[5],[18],[19]	980			980
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[36]							11.39%
Spread	[23],[25],[30],[31],[36]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				1,581
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.62%
Spread	[23],[25],[30],[31]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				20,559
Investment, Identifier [Axis]: Implus Footcare, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 5,820			5,820
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							13.73%
Spread	[23],[25],[30],[31]							7.75%
PIK Rate	[14],[23],[25],[30]							1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 15,892
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.01%			10.01%
Spread	[18],[19],[20],[21]	6.00%			6.00%
PIK Rate	[13],[18],[19],[20]	4.00%			4.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 1,924			$ 1,924
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.31%			10.31%
Spread	[18],[19],[20],[21]	6.00%			6.00%
PIK Rate	[13],[18],[19],[20]	10.31%			10.31%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 4,314			$ 4,314
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(1,390)		2,700
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,390	[2],[9],[23]	17,690
Gross Additions					0		2,700
Gross Reductions					1,390		0
Ending balance		19,000	[5],[10],[18]	20,390	19,000	[5],[10],[18]	20,390
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2,460)		2,452
Amount of Interest, Fees or Dividends Credited to Income					1,155		622
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,080	[2],[9],[24]	4,000
Gross Additions					0		2,820
Gross Reductions					2,460		0
Ending balance		$ 6,620	[5],[10],[26]	$ 6,820	$ 6,620	[5],[10],[26]	$ 6,820
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	12.00%	13.00%	[10]	12.00%	12.00%	[9]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1,625
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 15,050	[2],[9]	17,403
Gross Additions							42
Gross Reductions							2,275
Ending balance		$ 15,524	[5],[10]	$ 15,170	15,524	[5],[10]	15,170
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(96)
Amount of Interest, Fees or Dividends Credited to Income					683
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,050
Gross Additions					0
Gross Reductions					15,050
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					12
Amount of Interest, Fees or Dividends Credited to Income					864
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					16,372
Gross Reductions					848
Ending balance		$ 15,524			15,524
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				320
Ending balance	[5],[18],[19]	$ 270			$ 270
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.57%			10.57%
Spread		6.25%	[18],[19],[20],[21]		6.25%	[18],[19],[20],[21]		6.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (54)
Ending balance	[5],[18],[19],[20]	$ 195			$ 195
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.58%			10.58%
Spread		6.25%	[18],[19],[20],[21]		6.25%	[18],[19],[20],[21]		6.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (47)
Ending balance	[5],[18],[19],[20]	$ 13,364			13,364
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.87%
Spread	[23],[25],[30],[31]							6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				13,539
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				27
Ending balance	[5],[18],[19]	$ 97			$ 97
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.38%	[18],[19],[20]		14.38%	[18],[19],[20]		14.69%	[23],[25],[30],[36]
Spread		10.00%	[18],[19],[20],[21]		10.00%	[18],[19],[20],[21]		10.00%	[23],[25],[30],[31],[36]
PIK Rate		2.00%	[13],[18],[19],[20]		2.00%	[13],[18],[19],[20]		2.00%	[14],[23],[25],[30],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 725
Ending balance	[5],[18],[19],[20]	$ 797			$ 797
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.38%	[18],[19],[20]		14.38%	[18],[19],[20]		14.58%	[23],[25],[30]
Spread		10.00%	[18],[19],[20],[21]		10.00%	[18],[19],[20],[21]		10.00%	[23],[25],[30],[31]
PIK Rate		2.00%	[13],[18],[19],[20]		2.00%	[13],[18],[19],[20]		2.00%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 6,636
Ending balance	[5],[18],[19],[20]	$ 6,824			$ 6,824
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		14.38%	[18],[19],[20]		14.38%	[18],[19],[20]		14.58%	[23],[25],[30]
Spread		10.00%	[18],[19],[20],[21]		10.00%	[18],[19],[20],[21]		10.00%	[23],[25],[30],[31]
PIK Rate		2.00%	[13],[18],[19],[20]		2.00%	[13],[18],[19],[20]		2.00%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 2,669
Ending balance	[5],[18],[19],[20]	$ 2,745			$ 2,745
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	14.38%			14.38%
Spread	[18],[19],[20],[21]	10.00%			10.00%
PIK Rate	[13],[18],[19],[20]	2.00%			2.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 316			$ 316
Investment, Identifier [Axis]: Integral Energy Services, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					140		390
Amount of Interest, Fees or Dividends Credited to Income					0		32
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					550	[2],[9],[23]	160
Gross Additions					140		390
Gross Reductions					0		0
Ending balance		$ 690	[5],[10],[18]	$ 550	690	[5],[10],[18]	$ 550
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	10.00%	[9],[23],[24]
PIK Rate				10.00%			10.00%	10.00%	[9],[14],[23],[24]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							125
Amount of Interest, Fees or Dividends Credited to Income							21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 452	[2],[9],[23],[24]	300
Gross Additions							146
Gross Reductions							0
Ending balance				$ 446			$ 446
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity 1
Schedule of Investments [Line Items]
Total Rate	[10],[18],[26]	10.00%			10.00%
PIK Rate	[10],[13],[18],[26]	10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					55
Amount of Interest, Fees or Dividends Credited to Income					20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					452
Gross Additions					75
Gross Reductions					0
Ending balance	[5],[10],[18],[26]	$ 527			$ 527
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate	[10],[18]	10.00%			10.00%
PIK Rate	[10],[13],[18]	10.00%			10.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					76
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					190
Gross Reductions					0
Ending balance	[5],[10],[18]	$ 190			$ 190
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.05%	[10],[18],[20]	13.09%	12.05%	[10],[18],[20]	13.09%	12.35%	[9],[23],[30]
Spread		7.50%	[10],[18],[20],[21]	7.50%	7.50%	[10],[18],[20],[21]	7.50%	7.50%	[9],[23],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(98)		232
Amount of Interest, Fees or Dividends Credited to Income					1,230		1,400
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,728	[2],[9],[23],[30]	13,891
Gross Additions					42		295
Gross Reductions					740		1,571
Ending balance		$ 12,030	[5],[10],[18],[20]	$ 12,615	12,030	[5],[10],[18],[20]	12,615
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				0
Ending balance	[5],[18],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		14.20%	[18],[19],[27],[29]		14.20%	[18],[19],[27],[29]		14.54%	[23],[25],[28],[36]
Spread		10.00%	[18],[19],[21],[27],[29]		10.00%	[18],[19],[21],[27],[29]		10.00%	[23],[25],[28],[31],[36]
PIK Rate		14.20%	[13],[18],[19],[27],[29]		14.20%	[13],[18],[19],[27],[29]		14.54%	[14],[23],[25],[28],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[36]				$ 1,580
Ending balance	[5],[18],[19],[27],[29]	$ 1,932			$ 1,932
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[15],[18],[19],[20],[27]		11.43%	[15],[18],[19],[20],[27]		11.67%	[23],[25],[28],[30],[32]
Spread		7.00%	[15],[18],[19],[20],[21],[27]		7.00%	[15],[18],[19],[20],[21],[27]		7.00%	[23],[25],[28],[30],[31],[32]
PIK Rate		11.43%	[13],[15],[18],[19],[20],[27]		11.43%	[13],[15],[18],[19],[20],[27]		11.67%	[14],[23],[25],[28],[30],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[30],[32]				$ 13
Ending balance	[5],[15],[18],[19],[20],[27]	$ 5			$ 5
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.81%	[18],[19],[20]		11.81%	[18],[19],[20]		12.01%	[23],[25],[30],[36]
Spread		7.50%	[18],[19],[20],[21]		7.50%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 995
Ending balance	[5],[18],[19],[20]	$ 958			$ 958
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.81%	[18],[19],[20]		11.81%	[18],[19],[20]		12.01%	[23],[25],[30]
Spread		7.50%	[18],[19],[20],[21]		7.50%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
PIK Rate	[13],[18],[19],[20]	3.81%			3.81%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 16,098
Ending balance	[5],[18],[19],[20]	$ 15,086			15,086
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(150)		170
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,850	[2],[9]	2,680
Gross Additions					0		170
Gross Reductions					150		0
Ending balance		$ 2,700	[5],[10]	$ 2,850	2,700	[5],[10]	$ 2,850
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate				25.00%			25.00%	25.00%	[9]
PIK Rate				25.00%			25.00%	25.00%	[9],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							49
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 760	[2],[9]	0
Gross Additions							760
Gross Reductions							0
Ending balance				$ 760			$ 760
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity 1
Schedule of Investments [Line Items]
Total Rate	[10]	25.00%			25.00%
PIK Rate	[10],[13]	25.00%			25.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					210
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					760
Gross Additions					210
Gross Reductions					0
Ending balance	[5],[10]	$ 970			$ 970
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity 2
Schedule of Investments [Line Items]
Total Rate	[10]	25.00%			25.00%
PIK Rate	[10],[13]	25.00%			25.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					155
Gross Reductions					0
Ending balance	[5],[10]	$ 155			$ 155
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					450		465
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,493	[2],[9]	4,487
Gross Additions					5		5
Gross Reductions					0		0
Ending balance		$ 4,498	[5],[10]	$ 4,492	$ 4,498	[5],[10]	$ 4,492
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					293		303
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,927	[2],[9]	2,922
Gross Additions					3		4
Gross Reductions					0		0
Ending balance		$ 2,930	[5],[10]	$ 2,926	$ 2,930	[5],[10]	$ 2,926
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					882		911
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,944	[2],[9]	8,944
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 8,944	[5],[10]	$ 8,944	$ 8,944	[5],[10]	$ 8,944
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,756		1,962
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,542	[2],[9]	19,503
Gross Additions					20		33
Gross Reductions					0		2,000
Ending balance		$ 17,562	[5],[10]	$ 17,536	$ 17,562	[5],[10]	$ 17,536
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		13.00%	[10]	13.00%	13.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,000		1,111
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,638	[2],[9]	10,273
Gross Additions					54		64
Gross Reductions					287		480
Ending balance		$ 9,405	[5],[10]	$ 9,857	9,405	[5],[10]	9,857
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				0
Ending balance	[5],[12],[19]	$ 0			$ 0
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		2.50%	[12],[19],[20],[54]		2.50%	[12],[19],[20],[54]		11.25%	[11],[25],[30]
Spread	[11],[25],[30],[31]							6.60%
PIK Rate	[11],[14],[25],[30]							8.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				$ 663
Ending balance	[5],[12],[19],[20],[54]	$ 458			$ 458
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	11.41%			11.41%
Spread		7.00%	[18],[19],[20],[21],[29]		7.00%	[18],[19],[20],[21],[29]		6.50%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (5)
Ending balance	[5],[18],[19],[20],[29]	$ 454			$ 454
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.55%	[18],[19],[20]		10.55%	[18],[19],[20]		10.35%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		5.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,722
Ending balance	[5],[18],[19],[20]	$ 2,101			$ 2,101
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.55%	[18],[19],[20]		11.55%	[18],[19],[20]		11.35%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		6.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,722
Ending balance	[5],[18],[19],[20]	$ 2,101			$ 2,101
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.55%	[18],[19],[20]		12.55%	[18],[19],[20]		12.35%	[23],[25],[30]
Spread		8.00%	[18],[19],[20],[21]		8.00%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,722
Ending balance	[5],[18],[19],[20]	$ 2,101			$ 2,101
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.25%	[18],[19],[20],[21],[22]		6.25%	[18],[19],[20],[21],[22]		6.50%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (162)
Ending balance	[5],[18],[19],[20],[22]	$ (135)			$ (135)
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.25%	[18],[19],[20]		10.25%	[18],[19],[20]		10.83%	[23],[25],[30]
Spread		6.25%	[18],[19],[20],[21]		6.25%	[18],[19],[20],[21]		6.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 60,336
Ending balance	[5],[18],[19],[20]	$ 59,808			59,808
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				300
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[18],[37]	0			0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(842)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					842
Gross Reductions					842
Ending balance	[5],[8],[18]	$ 0			$ 0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.45%	[8],[18],[20]		9.45%	[8],[18],[20]		12.72%	[23],[25],[30],[36]
Spread		5.00%	[8],[18],[20],[21]		5.00%	[8],[18],[20],[21]		8.00%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 7,977
Ending balance	[5],[8],[18],[20]	$ 6,316			$ 6,316
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 10
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%
PIK Rate		15.00%			15.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					6,205
Gross Reductions					0
Ending balance		$ 6,205			$ 6,205
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.45%	[8],[18],[20]		10.45%	[8],[18],[20]		12.58%	[23],[25],[30]
Spread		6.00%	[8],[18],[20],[21]		6.00%	[8],[18],[20],[21]		8.00%	[23],[25],[30],[31]
PIK Rate	[8],[13],[18],[20]	10.45%			10.45%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 33,879
Ending balance	[5],[8],[18],[20]	$ 35,412			$ 35,412
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		15.00%	[8],[15],[18]		15.00%	[8],[15],[18]		12.58%	[23],[25],[30]
Spread	[23],[25],[30],[31]							8.00%
PIK Rate	[8],[13],[15],[18]	15.00%			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,176
Ending balance	[5],[8],[15],[18]	$ 6,205			$ 6,205
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread		6.25%			6.25%
Amount of Realized Gain/(Loss)					$ (466)
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,977
Gross Additions					0
Gross Reductions					7,977
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Spread		6.25%			6.25%
Amount of Realized Gain/(Loss)					$ (5,765)
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					33,879
Gross Additions					0
Gross Reductions					33,879
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 7
Schedule of Investments [Line Items]
Spread		6.25%			6.25%
Amount of Realized Gain/(Loss)					$ (537)
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,176
Gross Additions					0
Gross Reductions					3,176
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 8
Schedule of Investments [Line Items]
Total Rate		10.45%			10.45%
Spread		6.00%			6.00%
PIK Rate		10.45%			10.45%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					387
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					35,637
Gross Reductions					225
Ending balance		$ 35,412			$ 35,412
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 9
Schedule of Investments [Line Items]
Total Rate		9.45%			9.45%
Spread		5.00%			5.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					61
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					6,316
Gross Reductions					0
Ending balance		$ 6,316			6,316
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				870
Ending balance	[5],[18],[19]	$ 750			$ 750
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.42%	[18],[19],[20],[52]		11.42%	[18],[19],[20],[52]		12.18%	[23],[25],[30],[53]
Spread		7.00%	[18],[19],[20],[21],[52]		7.00%	[18],[19],[20],[21],[52]		7.50%	[23],[25],[30],[31],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[53]				$ 792
Ending balance	[5],[18],[19],[20],[52]	$ 771			$ 771
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.28%	[18],[19],[20],[52]		11.28%	[18],[19],[20],[52]		12.19%	[23],[25],[30],[53]
Spread		7.00%	[18],[19],[20],[21],[52]		7.00%	[18],[19],[20],[21],[52]		7.50%	[23],[25],[30],[31],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[53]				$ 627
Ending balance	[5],[18],[19],[20],[52]	$ 625			$ 625
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.23%	[18],[19],[20],[52]		11.23%	[18],[19],[20],[52]		12.18%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21],[52]		7.00%	[18],[19],[20],[21],[52]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 60
Ending balance	[5],[18],[19],[20],[52]	$ 667			$ 667
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.38%	[18],[19],[20]		11.38%	[18],[19],[20]		12.18%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,843
Ending balance	[5],[18],[19],[20]	$ 1,764			1,764
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(280)		(600)
Amount of Interest, Fees or Dividends Credited to Income					804		1,082
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,820	[2],[7],[24]	12,420
Gross Additions					0		0
Gross Reductions					280		600
Ending balance		$ 11,540	[5],[8],[26]	$ 11,820	$ 11,540	[5],[8],[26]	$ 11,820
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.75%	[8],[20],[21],[22]	6.75%	6.75%	[8],[20],[21],[22]	6.75%	6.75%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[30],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.25%	[8],[20]	15.25%	14.25%	[8],[20]	15.25%	14.50%	[7],[30]
Spread		6.75%	[8],[20],[21]	6.75%	6.75%	[8],[20],[21]	6.75%	6.75%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					144		219
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,498	[2],[7],[30]	1,998
Gross Additions					0		0
Gross Reductions					470		348
Ending balance		$ 1,028	[5],[8],[20]	$ 1,650	1,028	[5],[8],[20]	1,650
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[12],[19]	$ 350			350
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				0
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				$ 140
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.13%	[12],[15],[19],[20]		13.13%	[12],[15],[19],[20]		21.59%	[11],[25],[28],[30],[32]
Spread		8.75%	[12],[15],[19],[20],[21]		8.75%	[12],[15],[19],[20],[21]		16.00%	[11],[25],[28],[30],[31],[32]
PIK Rate		6.00%	[12],[13],[19],[20]		6.00%	[12],[13],[19],[20]		21.59%	[11],[14],[25],[28],[30],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[28],[30],[32]				$ 0
Ending balance	[5],[12],[15],[19],[20]	$ 1,852			$ 1,852
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.13%	[12],[15],[19],[20]		13.13%	[12],[15],[19],[20]		21.59%	[11],[25],[28],[30],[32]
Spread		8.75%	[12],[15],[19],[20],[21]		8.75%	[12],[15],[19],[20],[21]		16.00%	[11],[25],[28],[30],[31],[32]
PIK Rate		6.00%	[12],[13],[19],[20]		6.00%	[12],[13],[19],[20]		21.59%	[11],[14],[25],[28],[30],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[28],[30],[32]				$ 0
Ending balance	[5],[12],[15],[19],[20]	$ 1,383			1,383
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[25],[30]							13.21%
Spread	[11],[25],[30],[31]							8.75%
PIK Rate	[11],[14],[25],[30]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				1,770
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[25],[30]							13.18%
Spread	[11],[25],[30],[31]							8.75%
PIK Rate	[11],[14],[25],[30]							13.18%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				1,314
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					8,980		4,680
Amount of Interest, Fees or Dividends Credited to Income					2,554		805
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,550		9,620
Gross Additions					8,980		4,680
Gross Reductions					0		0
Ending balance		$ 23,530		14,300	$ 23,530		14,300
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%			15.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					(5)		(5)
Amount of Interest, Fees or Dividends Credited to Income					23		18
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					1,805		5
Gross Reductions					5		5
Ending balance		$ 1,800		$ 0	$ 1,800		$ 0
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.00%		15.00%	15.00%		15.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(35)		(41)
Amount of Interest, Fees or Dividends Credited to Income					2,481		2,665
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					21,507		24,207
Gross Additions					35		41
Gross Reductions					35		2,741
Ending balance		$ 21,507		$ 21,507	21,507		21,507
Investment, Identifier [Axis]: JorVet Holdings, LLC, (12), Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				23,216
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(850)		287
Amount of Interest, Fees or Dividends Credited to Income					728		752
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,180	[2],[7],[24]	10,741
Gross Additions					0		539
Gross Reductions					850		0
Ending balance		$ 12,330	[5],[8],[26]	$ 11,280	$ 12,330	[5],[8],[26]	$ 11,280
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2,157		2,360
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					23,216		25,483
Gross Additions					35		43
Gross Reductions					0		899
Ending balance		$ 23,251	[5],[8]	$ 24,627	23,251	[5],[8]	24,627
Investment, Identifier [Axis]: KBK Industries, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(4,950)		2,050
Amount of Interest, Fees or Dividends Credited to Income					2,900		1,906
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,180	[2],[7]	22,770
Gross Additions					0		2,050
Gross Reductions					4,950		0
Ending balance		$ 20,230	[5],[8],[26]	$ 24,820	$ 20,230	[5],[8],[26]	$ 24,820
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		9.50%	[8]	9.00%	9.50%	[8]	9.00%	9.00%	[7]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(11)
Amount of Interest, Fees or Dividends Credited to Income							313
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 3,700	[2],[7]	4,700
Gross Additions							11
Gross Reductions							711
Ending balance		$ 7,800	[5],[8]	$ 4,000	7,800	[5],[8]	4,000
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(24)
Amount of Interest, Fees or Dividends Credited to Income					130
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,700
Gross Additions					0
Gross Reductions					3,700
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.50%			9.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					41
Amount of Interest, Fees or Dividends Credited to Income					370
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					9,400
Gross Reductions					1,600
Ending balance		$ 7,800			7,800
Investment, Identifier [Axis]: KMS, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					250
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					5,140
Gross Reductions					0
Ending balance	[5],[10],[18]	$ 5,140			$ 5,140
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.50%	[10],[18]		12.50%	[10],[18]		14.50%	[23],[25],[30],[32]
Spread	[23],[25],[30],[31],[32]							9.75%
PIK Rate	[10],[13],[18]	12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[32]				$ 662
Ending balance	[5],[10],[18]	$ 1,145			$ 1,145
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 10
Schedule of Investments [Line Items]
PIK Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,145
Gross Reductions					0
Ending balance		$ 1,145			$ 1,145
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 11
Schedule of Investments [Line Items]
Total Rate		12.50%			12.50%
PIK Rate		12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					92
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,203
Gross Reductions					195
Ending balance		$ 1,008			$ 1,008
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[10],[18]		12.50%	[10],[18]		14.23%	[23],[25],[30]
Spread	[23],[25],[30],[31]							9.75%
PIK Rate		12.50%	[10],[13],[18]		12.50%	[10],[13],[18]		14.23%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 450
Ending balance	[5],[10],[18]	$ 1,008			$ 1,008
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							14.23%
Spread		9.75%			9.75%			9.75%	[23],[25],[30],[31]
PIK Rate	[14],[23],[25],[30]							14.23%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				440
Gross Additions					0
Gross Reductions					440
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[32]							14.50%
Spread		9.75%			9.75%			9.75%	[23],[25],[30],[31],[32]
Amount of Realized Gain/(Loss)					$ (3,037)
Amount of Unrealized Gain/(Loss)					1
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[32]				4,779
Gross Additions					0
Gross Reductions					4,779
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 7
Schedule of Investments [Line Items]
Spread		9.75%			9.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 8
Schedule of Investments [Line Items]
Spread		9.75%			9.75%
Amount of Realized Gain/(Loss)					$ (415)
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					663
Gross Additions					0
Gross Reductions					663
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 9
Schedule of Investments [Line Items]
Spread		9.75%			9.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					450
Gross Additions					0
Gross Reductions					450
Ending balance		$ 0			0
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					50		(240)
Amount of Interest, Fees or Dividends Credited to Income					78		95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,710	[2],[7],[24],[38]	2,730
Gross Additions					50		0
Gross Reductions					0		240
Ending balance		2,760	[5],[8],[26],[37]	2,490	2,760	[5],[8],[26],[37]	2,490
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					3,690		2,550
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,240	[2],[7]	9,690
Gross Additions					3,690		2,550
Gross Reductions					0		0
Ending balance		$ 15,930	[5],[8]	$ 12,240	$ 15,930	[5],[8]	$ 12,240
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%	11.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,248		1,698
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,987	[2],[7]	19,774
Gross Additions					6		10
Gross Reductions					1,600		3,200
Ending balance		$ 13,393	[5],[8]	$ 16,584	$ 13,393	[5],[8]	$ 16,584
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.00%	[8]	9.00%	9.00%	[8]	9.00%	9.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					267		264
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,926	[2],[7]	3,805
Gross Additions					1		164
Gross Reductions					36		32
Ending balance		$ 3,891	[5],[8]	$ 3,937	3,891	[5],[8]	3,937
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P., LP Interests
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25],[42],[46],[47]				2,926
Ending balance	[5],[19],[26],[44],[48],[49]	$ 792			792
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.89%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				1,156
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.92%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				8,575
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.71%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				5,485
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.71%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				2,878
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.92%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				1,118
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 6
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.71%
Spread	[23],[25],[30],[31]							7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 11,326
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.44%	[18],[19],[20]		12.44%	[18],[19],[20]		12.74%	[23],[25],[30]
Spread		8.00%	[18],[19],[20],[21]		8.00%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
PIK Rate		3.00%	[13],[18],[19],[20]		3.00%	[13],[18],[19],[20]		3.00%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,316
Ending balance	[5],[18],[19],[20]	$ 3,188			3,188
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[25]							9.44%
Spread	[11],[25],[31]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				15,059
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[23],[25],[28],[30]							12.25%
Spread	[23],[25],[28],[30],[31]							4.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[28],[30]				$ 19,739
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.83%			11.83%
Spread	[18],[19],[20],[21]	7.50%			7.50%
PIK Rate	[13],[18],[19],[20]	2.75%			2.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 43,819			$ 43,819
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	1,896			1,896
Investment, Identifier [Axis]: Looking Glass Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25],[42],[47]				25
Ending balance	[5],[19],[44],[49]	25			25
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(330)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							330
Gross Additions							0
Gross Reductions							330
Ending balance				0			0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate				14.00%			14.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(3,482)
Amount of Interest, Fees or Dividends Credited to Income							557
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							5,022
Gross Additions							0
Gross Reductions							3,642
Ending balance				$ 1,380			1,380
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(202)		(248)
Amount of Interest, Fees or Dividends Credited to Income					1,152		1,455
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,034	[5],[7],[24],[42],[46],[47]	14,527
Gross Additions					0		0
Gross Reductions					202		248
Ending balance		13,832		14,279	13,832		14,279
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[26],[44],[48],[49]	$ 13,832			$ 13,832
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate		7.31%			7.31%			5.00%	[7],[42],[47]
Spread		3.00%			3.00%
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					334		44
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,600	[2],[7],[42],[47]	0
Gross Additions					16,920		16,500
Gross Reductions					9,820		16,500
Ending balance		$ 8,700		0	$ 8,700		0
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8],[20],[44],[49]	7.31%			7.31%
Spread	[8],[20],[21],[44],[49]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[20],[44],[49]	$ 8,700			$ 8,700
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					170		252
Amount of Interest, Fees or Dividends Credited to Income					773		194
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,843	[5],[7],[24],[42],[46],[47]	1,561
Gross Additions					1,721		6,140
Gross Reductions					0		0
Ending balance		9,564		$ 7,701	9,564		$ 7,701
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[26],[44],[48],[49]	$ 9,564			$ 9,564
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt
Schedule of Investments [Line Items]
Total Rate				8.75%			8.75%
Spread		3.00%		3.50%	3.00%		3.50%	3.00%	[7],[30],[31],[33],[42],[47]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					50		2,544
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(59)	[5],[7],[30],[33],[42],[47]	23,367
Gross Additions					1,818		42,060
Gross Reductions					1,850		32,000
Ending balance		$ (91)		$ 33,427	$ (91)		33,427
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt
Schedule of Investments [Line Items]
Spread	[8],[20],[21],[22],[44],[49]	3.00%			3.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[20],[22],[44],[49]	$ (91)			$ (91)
Investment, Identifier [Axis]: MSC Adviser I, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					20,350		44,307
Amount of Interest, Fees or Dividends Credited to Income					8,393		8,862
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					246,000	[5],[7],[8],[24],[55]	174,063
Gross Additions					20,350		44,307
Gross Reductions					0		0
Ending balance		266,350	[5],[8],[26],[56]	218,370	266,350	[5],[8],[26],[56]	218,370
Investment, Identifier [Axis]: MSC Income Fund, Inc., Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(3,803)		(271)
Amount of Interest, Fees or Dividends Credited to Income					1,507		1,259
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,810	[5],[7],[8],[24],[42],[47]	10,025
Gross Additions					5,326		7,000
Gross Reductions					3,803		271
Ending balance		18,333	[5],[8],[26],[44],[49]	16,754	18,333	[5],[8],[26],[44],[49]	16,754
Investment, Identifier [Axis]: MVI MSO, LLC (Milford Vascular), Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					2,070
Amount of Interest, Fees or Dividends Credited to Income					118
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					4,770
Gross Reductions					0
Ending balance		$ 4,770			$ 4,770
Investment, Identifier [Axis]: MVI MSO, LLC (Milford Vascular), Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					873
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					9,763
Gross Reductions					0
Ending balance		$ 9,763			9,763
Investment, Identifier [Axis]: MVI MSO, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8]	$ 4,770			$ 4,770
Investment, Identifier [Axis]: MVI MSO, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]	13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8]	$ 9,763			$ 9,763
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				0
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.00%
Spread	[23],[25],[30],[31]							7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				18,973
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,630		2,480
Amount of Interest, Fees or Dividends Credited to Income					1,105		481
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,850	[2],[7]	1,500
Gross Additions					2,630		2,480
Gross Reductions					0		0
Ending balance		9,480		$ 3,980	9,480		$ 3,980
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[26]	$ 9,480			$ 9,480
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		8.00%	[8],[26]	8.00%	8.00%	[8],[26]	8.00%	8.00%	[7],[24]
PIK Rate		8.00%	[8],[13],[26]	8.00%	8.00%	[8],[13],[26]	8.00%	8.00%	[7],[14],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(481)		355
Amount of Interest, Fees or Dividends Credited to Income					849		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,397	[2],[7],[24]	6,035
Gross Additions					0		355
Gross Reductions					481		119
Ending balance		$ 5,916	[5],[8],[26]	$ 6,271	5,916	[5],[8],[26]	6,271
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1		0
Amount of Interest, Fees or Dividends Credited to Income					18		9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(11)	[2],[7],[33]	0
Gross Additions					11		0
Gross Reductions					0		14
Ending balance		$ 0	[5],[8],[22]	$ (14)	$ 0	[5],[8],[22]	$ (14)
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.75%	[8]	10.75%	8.75%	[8]	10.75%	9.75%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					73		0
Amount of Interest, Fees or Dividends Credited to Income					1,408		2,004
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					20,844	[2],[7]	23,623
Gross Additions					117		42
Gross Reductions					3,173		1,146
Ending balance		$ 17,788	[5],[8]	$ 22,519	$ 17,788	[5],[8]	$ 22,519
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.75%	[18],[19],[20],[21],[22]		5.75%	[18],[19],[20],[21],[22]		5.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (39)
Ending balance	[5],[18],[19],[20],[22]	$ (30)			$ (30)
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.01%	[18],[19],[20]		10.01%	[18],[19],[20]		10.22%	[23],[25],[30]
Spread		5.75%	[18],[19],[20],[21]		5.75%	[18],[19],[20],[21]		5.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 11,135
Ending balance	[5],[18],[19],[20]	$ 11,051			$ 11,051
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.01%	[18],[19],[20]		10.01%	[18],[19],[20]		10.21%	[23],[25],[30]
Spread		5.75%	[18],[19],[20],[21]		5.75%	[18],[19],[20],[21]		5.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 19,828
Ending balance	[5],[18],[19],[20]	$ 15,723			15,723
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23],[38]				13,840
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(2,389)
Amount of Interest, Fees or Dividends Credited to Income					829
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,840
Gross Additions					829
Gross Reductions					2,389
Ending balance	[5],[10],[18],[26],[37]	$ 12,280			12,280
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Spread	[9],[23],[30],[31],[33]							5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23],[30],[33]				$ 0
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[10],[18],[20]	9.78%			9.78%
Spread	[10],[18],[20],[21]	5.50%			5.50%
PIK Rate	[10],[13],[18],[20]	9.78%			9.78%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					186
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,832
Gross Reductions					0
Ending balance	[5],[10],[18],[20]	$ 2,832			$ 2,832
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[10],[18],[20]	9.70%			9.70%
Spread	[10],[18],[20],[21]	5.50%			5.50%
PIK Rate	[10],[13],[18],[20]	9.70%			9.70%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					21
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,672
Gross Reductions					0
Ending balance	[5],[10],[18],[20]	$ 1,672			1,672
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				430
Ending balance	[5],[18],[19]	$ 280			$ 280
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.47%	[18],[19],[20],[29]		10.47%	[18],[19],[20],[29]		10.74%	[23],[25],[30],[36]
Spread		6.25%	[18],[19],[20],[21],[29]		6.25%	[18],[19],[20],[21],[29]		6.25%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 575
Ending balance	[5],[18],[19],[20],[29]	$ 808			$ 808
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.44%	[18],[19],[20],[52]		10.44%	[18],[19],[20],[52]		10.77%	[23],[25],[30],[53]
Spread		6.25%	[18],[19],[20],[21],[52]		6.25%	[18],[19],[20],[21],[52]		6.25%	[23],[25],[30],[31],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[53]				$ 1,315
Ending balance	[5],[18],[19],[20],[52]	$ 1,243			$ 1,243
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.45%	[18],[19],[20]		9.45%	[18],[19],[20]		9.76%	[23],[25],[30]
Spread		5.25%	[18],[19],[20],[21]		5.25%	[18],[19],[20],[21]		5.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 4,904
Ending balance	[5],[18],[19],[20]	$ 4,603			$ 4,603
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		11.45%	[18],[19],[20]		11.45%	[18],[19],[20]		11.76%	[23],[25],[30]
Spread		7.25%	[18],[19],[20],[21]		7.25%	[18],[19],[20],[21]		7.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 4,904
Ending balance	[5],[18],[19],[20]	$ 4,603			4,603
Investment, Identifier [Axis]: Mission Critical Group, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 11,430			$ 11,430
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (207)			$ (207)
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[18],[19],[20],[21],[22]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[22]	$ (248)			$ (248)
Investment, Identifier [Axis]: Mission Critical Group, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.14%			10.14%
Spread	[18],[19],[20],[21]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 66,265			$ 66,265
Investment, Identifier [Axis]: Moffitt Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,260
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					15,560
Gross Reductions					0
Ending balance	[5],[8]	$ 15,560			$ 15,560
Investment, Identifier [Axis]: Moffitt Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					1,167
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					34,695
Gross Reductions					438
Ending balance		$ 34,257			$ 34,257
Investment, Identifier [Axis]: Moffitt Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]	13.00%			13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8]	$ 34,257			$ 34,257
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[9],[24]
PIK Rate		12.00%		12.00%	12.00%		12.00%	12.00%	[9],[14],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					160		23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,707	[2],[9],[24]	0
Gross Additions					160		1,656
Gross Reductions					0		0
Ending balance		$ 1,867		$ 1,656	$ 1,867		$ 1,656
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate	[10],[26]	12.00%			12.00%
PIK Rate	[10],[13],[26]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[26]	$ 1,867			$ 1,867
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%		14.00%	14.00%		14.00%	14.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,132		375
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,967	[2],[9]	0
Gross Additions					137		8,933
Gross Reductions					640		0
Ending balance		$ 8,464		$ 8,933	$ 8,464		8,933
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]	14.00%			14.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10]	$ 8,464			$ 8,464
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					594	[2],[9],[16]	0
Gross Additions					0		594
Gross Reductions					0		0
Ending balance		594	[5],[10],[17]	594	594	[5],[10],[17]	594
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				796
Ending balance	[5],[18],[19],[44],[45]	$ 602			$ 602
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.51%	[18],[19],[20],[44],[45]		10.51%	[18],[19],[20],[44],[45]		11.59%	[23],[25],[30],[42],[43]
Spread		6.25%	[18],[19],[20],[21],[44],[45]		6.25%	[18],[19],[20],[21],[44],[45]		7.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 3,907
Ending balance	[5],[18],[19],[20],[44],[45]	$ 4,416			$ 4,416
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.51%	[18],[19],[20],[44],[45]		10.51%	[18],[19],[20],[44],[45]		11.59%	[23],[25],[30],[42],[43]
Spread		6.25%	[18],[19],[20],[21],[44],[45]		6.25%	[18],[19],[20],[21],[44],[45]		7.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 11,079
Ending balance	[5],[18],[19],[20],[44],[45]	$ 12,427			$ 12,427
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.51%	[18],[19],[20],[44],[45]		10.51%	[18],[19],[20],[44],[45]		11.59%	[23],[25],[30],[42],[43]
Spread		6.25%	[18],[19],[20],[21],[44],[45]		6.25%	[18],[19],[20],[21],[44],[45]		7.00%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 18,103
Ending balance	[5],[18],[19],[20],[44],[45]	$ 17,975			$ 17,975
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[44],[45]	10.51%			10.51%
Spread	[18],[19],[20],[21],[44],[45]	6.25%			6.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[44],[45]	$ 1,226			$ 1,226
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate		8.00%	[18],[19],[44],[45]		8.00%	[18],[19],[44],[45]		8.00%	[23],[25],[42],[43]
PIK Rate		8.00%	[13],[18],[19],[44],[45]		8.00%	[13],[18],[19],[44],[45]		8.00%	[14],[23],[25],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				$ 114
Ending balance	[5],[18],[19],[44],[45]	$ 114			$ 114
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.00%	[18],[19],[44],[45]		8.00%	[18],[19],[44],[45]		8.00%	[23],[25],[42],[43]
PIK Rate		8.00%	[13],[18],[19],[44],[45]		8.00%	[13],[18],[19],[44],[45]		8.00%	[14],[23],[25],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				$ 54
Ending balance	[5],[18],[19],[44],[45]	$ 79			79
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[42],[43]							8.00%
PIK Rate	[14],[23],[25],[42],[43]							8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[42],[43]				107
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					410		(290)
Amount of Interest, Fees or Dividends Credited to Income					2,864		2,941
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					26,370	[5],[7],[24]	26,390
Gross Additions					410		0
Gross Reductions					0		290
Ending balance		26,780	[5],[8],[26]	26,100	26,780	[5],[8],[26]	26,100
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[5],[7],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[8]	10.00%	10.00%	[8]	10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(5)		16
Amount of Interest, Fees or Dividends Credited to Income					441		441
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,746	[5],[7]	5,746
Gross Additions					5		0
Gross Reductions					5		0
Ending balance		$ 5,746	[5],[8]	$ 5,746	5,746	[5],[8]	5,746
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(1,980)
Amount of Interest, Fees or Dividends Credited to Income							95
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,050	[2],[7]	11,730
Gross Additions							0
Gross Reductions							1,980
Ending balance				9,750			9,750
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					2,110
Amount of Interest, Fees or Dividends Credited to Income					1,867
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,050
Gross Additions					2,110
Gross Reductions					0
Ending balance	[5],[8]	11,160			11,160
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					1,945
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					2,760
Gross Reductions					0
Ending balance	[5],[8],[37]	2,760			2,760
Investment, Identifier [Axis]: NRP Jones, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,200
Gross Reductions					272
Ending balance	[5],[8],[37]	928			928
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(83)		538
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					94	[5],[7]	1,466
Gross Additions					0		538
Gross Reductions					83		0
Ending balance		11	[5],[8]	2,004	11	[5],[8]	2,004
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2,417)		22
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,696	[5],[7]	53
Gross Additions					0		22
Gross Reductions					2,417		0
Ending balance		279	[5],[8]	$ 75	279	[5],[8]	$ 75
Investment, Identifier [Axis]: NRP Jones, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					756
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,238
Gross Reductions					0
Ending balance	[5],[8]	$ 1,238			$ 1,238
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%	12.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(137)		0
Amount of Interest, Fees or Dividends Credited to Income					205		190
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,178	[5],[7]	2,080
Gross Additions					6		0
Gross Reductions					138		0
Ending balance		$ 2,046	[5],[8]	$ 2,080	2,046	[5],[8]	2,080
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[24]				32,040
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					55,646		0
Amount of Unrealized Gain/(Loss)					(25,053)		9,620
Amount of Interest, Fees or Dividends Credited to Income					5,694		674
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					32,040		15,020
Gross Additions					55,647		9,620
Gross Reductions					87,687		0
Ending balance		$ 0		$ 24,640	$ 0		$ 24,640
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				12.35%			12.35%
Spread		7.00%		7.00%	7.00%		7.00%	7.00%	[9],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(7)		8
Amount of Interest, Fees or Dividends Credited to Income					10		61
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[30],[33]	0
Gross Additions					7		1,250
Gross Reductions					7		0
Ending balance		$ 0		$ 1,250	0		1,250
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[9]							12.50%
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(121)
Amount of Interest, Fees or Dividends Credited to Income							1,205
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,650	[2],[9]	25,794
Gross Additions							0
Gross Reductions							25,794
Ending balance				0			0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[9]							12.50%
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(44)
Amount of Interest, Fees or Dividends Credited to Income							454
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					62,200	[2],[9]	10,500
Gross Additions							0
Gross Reductions							10,500
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate				12.50%			12.50%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(171)		127
Amount of Interest, Fees or Dividends Credited to Income					193		3,460
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,650		0
Gross Additions					2,771		62,200
Gross Reductions					7,421		0
Ending balance		0		$ 62,200	0		$ 62,200
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate				12.50%			12.50%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(115)		181
Amount of Interest, Fees or Dividends Credited to Income					3,143		153
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					62,200		0
Gross Additions					115		650
Gross Reductions					62,315		0
Ending balance		0		$ 650	0		650
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							220
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,560	[5],[7],[24]	0
Gross Additions							12,120
Gross Reductions							0
Ending balance				$ 12,120			$ 12,120
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8],[26]	20,260			20,260
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					231
Amount of Unrealized Gain/(Loss)					5,623
Amount of Interest, Fees or Dividends Credited to Income					1,751
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					15,560
Gross Additions					5,854
Gross Reductions					1,154
Ending balance		$ 20,260			$ 20,260
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[8]	12.50%			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[8]	$ 29,452			$ 29,452
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				11.75%			11.75%
Spread		6.50%		6.50%	6.50%		6.50%	6.50%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					16		526
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(16)	[5],[7],[30],[33]	0
Gross Additions					16		16,774
Gross Reductions					0		2,400
Ending balance		$ 0		$ 14,374	$ 0		$ 14,374
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		13.50%	12.50%		13.50%	13.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2,856		1,684
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					26,959	[5],[7]	0
Gross Additions					2,493		26,945
Gross Reductions					0		0
Ending balance		$ 29,452		$ 26,945	29,452		26,945
Investment, Identifier [Axis]: NexRev LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[5],[7],[24]				11,910
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					350		3,500
Amount of Interest, Fees or Dividends Credited to Income					453		645
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,910		6,350
Gross Additions					350		3,500
Gross Reductions					0		0
Ending balance		12,260	[5],[8],[26]	$ 9,850	12,260	[5],[8],[26]	$ 9,850
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		98
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[5],[7],[33]	0
Gross Additions					0		3,160
Gross Reductions					0		1,200
Ending balance		0		$ 1,960	0		$ 1,960
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				10.00%			10.00%	9.00%	[7]
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					(9)		21
Amount of Interest, Fees or Dividends Credited to Income					151		785
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,811	[5],[7]	9,751
Gross Additions					9		60
Gross Reductions					9,820		0
Ending balance		0		$ 9,811	0		9,811
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				(6)
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.24%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				28,243
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		390
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,000	[2],[7]	9,240
Gross Additions					0		1,420
Gross Reductions					0		0
Ending balance		6,000	[5],[8]	10,660	6,000	[5],[8]	10,660
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					650		90
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					11,550	[2],[7]	5,150
Gross Additions					650		610
Gross Reductions					0		0
Ending balance		$ 12,200	[5],[8]	$ 5,760	$ 12,200	[5],[8]	$ 5,760
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.91%	[8],[20],[27]	11.85%	10.91%	[8],[20],[27]	11.85%	11.16%	[7],[30]
Spread		6.50%	[8],[20],[21],[27]	6.50%	6.50%	[8],[20],[21],[27]	6.50%	6.50%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					278		332
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,600	[5],[7],[30]	3,600
Gross Additions					0		0
Gross Reductions					1,400		0
Ending balance		$ 2,200	[5],[8],[20],[27]	$ 3,600	$ 2,200	[5],[8],[20],[27]	$ 3,600
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[8],[27]	12.00%	12.00%	[8],[27]	12.00%	12.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					1,679		1,693
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,439	[7]	18,426
Gross Additions					1		10
Gross Reductions					0		0
Ending balance		$ 18,440	[5],[8],[27]	$ 18,436	18,440	[5],[8],[27]	18,436
Investment, Identifier [Axis]: OMi Topco, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					5,180		22,160
Amount of Interest, Fees or Dividends Credited to Income					20,699		4,275
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					72,720	[2],[7],[24]	36,380
Gross Additions					5,180		22,160
Gross Reductions					0		0
Ending balance		$ 77,900	[5],[8],[26]	$ 58,540	$ 77,900	[5],[8],[26]	$ 58,540
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%	12.00%	[7]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(30)
Amount of Interest, Fees or Dividends Credited to Income							1,116
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 9,000	[2],[7]	12,750
Gross Additions							30
Gross Reductions							2,780
Ending balance		$ 24,000	[5],[8]	$ 10,000	24,000	[5],[8]	10,000
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(30)
Amount of Interest, Fees or Dividends Credited to Income					207
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,000
Gross Additions					0
Gross Reductions					9,000
Ending balance		0			0
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					434
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		0			0
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					781
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					39
Amount of Interest, Fees or Dividends Credited to Income					11
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					24,000
Gross Reductions					0
Ending balance		$ 24,000			$ 24,000
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[18],[19],[20],[21],[22]		7.25%	[18],[19],[20],[21],[22]		7.50%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (4)
Ending balance	[5],[18],[19],[20],[22]	$ (3)			$ (3)
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[18],[19],[20]		11.50%	[18],[19],[20]		11.97%	[23],[25],[30]
Spread		7.25%	[18],[19],[20],[21]		7.25%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 25,884
Ending balance	[5],[18],[19],[20]	$ 26,155			$ 26,155
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	11.50%			11.50%
Spread	[18],[19],[20],[21]	7.25%			7.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 3,163			$ 3,163
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10]	$ 0	$ 0	[5],[10]	$ 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Preferred Stock
Schedule of Investments [Line Items]
Total Rate		7.00%	[10]	7.00%	7.00%	[10]	7.00%	7.00%	[9]
PIK Rate		7.00%	[10],[13]	7.00%	7.00%	[10],[13]	7.00%	7.00%	[9],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10]	$ 0	$ 0	[5],[10]	$ 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[10],[15]	12.00%	12.00%	[10],[15]	12.00%	12.00%	[9],[32]
PIK Rate		12.00%	[10],[13],[15]	12.00%	12.00%	[10],[13],[15]	12.00%	12.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(153)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 457	[2],[9],[32]	326
Gross Additions							0
Gross Reductions							153
Ending balance		$ 455	[5],[10],[15]	$ 173	$ 455	[5],[10],[15]	$ 173
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[10],[15]	12.00%	12.00%	[10],[15]	12.00%	12.00%	[9],[32]
PIK Rate		12.00%	[10],[13],[15]	12.00%	12.00%	[10],[13],[15]	12.00%	12.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(156)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					218	[2],[9],[32]	332
Gross Additions					0		0
Gross Reductions					0		155
Ending balance		$ 218	[5],[10],[15]	$ 177	$ 218	[5],[10],[15]	$ 177
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.00%	[10],[15]	12.00%	12.00%	[10],[15]	12.00%	12.00%	[9],[32]
PIK Rate		12.00%	[10],[13],[15]	12.00%	12.00%	[10],[13],[15]	12.00%	12.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(335)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 101	[2],[9],[32]	716
Gross Additions							0
Gross Reductions							336
Ending balance		$ 100	[5],[10],[15]	$ 380	$ 100	[5],[10],[15]	$ 380
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.00%	[10],[15]	12.00%	12.00%	[10],[15]	12.00%	12.00%	[9],[32]
PIK Rate		12.00%	[10],[13],[15]	12.00%	12.00%	[10],[13],[15]	12.00%	12.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		(700)
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					99	[2],[9],[32]	1,493
Gross Additions					0		0
Gross Reductions					0		700
Ending balance		$ 99	[5],[10],[15]	$ 793	$ 99	[5],[10],[15]	$ 793
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 5
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
PIK Rate		12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					456
Gross Additions					0
Gross Reductions					1
Ending balance		$ 455			$ 455
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 6
Schedule of Investments [Line Items]
Total Rate		12.00%			12.00%
PIK Rate		12.00%			12.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					102
Gross Additions					0
Gross Reductions					2
Ending balance		$ 100			$ 100
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%	[10],[15]	10.00%	10.00%	[10],[15]	10.00%	10.00%	[9],[32]
PIK Rate		10.00%	[10],[13],[15]	10.00%	10.00%	[10],[13],[15]	10.00%	10.00%	[9],[14],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					305	[2],[9],[32]	305
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 305	[5],[10],[15]	$ 305	305	[5],[10],[15]	305
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10],[17]	0	$ 0	[5],[10],[17]	0
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.00%	[18],[19],[20]		10.00%	[18],[19],[20]		11.35%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,386
Ending balance	[5],[18],[19],[20]	$ 1,389			$ 1,389
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[18],[19],[20]		10.00%	[18],[19],[20]		11.33%	[23],[25],[30]
Spread		6.00%	[18],[19],[20],[21]		6.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,850
Ending balance	[5],[18],[19],[20]	$ 3,861			3,861
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					690		1,082
Amount of Interest, Fees or Dividends Credited to Income					57		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,580	[2],[9],[24]	1,128
Gross Additions					690		1,082
Gross Reductions					0		0
Ending balance		3,270	[5],[10],[26]	$ 2,210	3,270	[5],[10],[26]	$ 2,210
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread				10.00%			10.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							61
Amount of Interest, Fees or Dividends Credited to Income							539
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							5,350
Gross Additions							90
Gross Reductions							5,440
Ending balance				$ 0			0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[30]							15.66%
Spread	[7],[30],[31]							11.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[30]				21,960
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		(2,370)
Amount of Interest, Fees or Dividends Credited to Income					180		388
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,450	[2],[7],[24],[38]	17,050
Gross Additions					0		0
Gross Reductions					0		2,370
Ending balance		$ 13,450	[5],[8],[37]	$ 14,680	$ 13,450	[5],[8],[37]	$ 14,680
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		11.00%	[8],[20],[21],[22]	11.00%	11.00%	[8],[20],[21],[22]	11.00%	11.00%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[30],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.41%	[8],[20]	16.35%	15.41%	[8],[20]	16.35%
Spread		11.00%	[8],[20],[21]	11.00%	11.00%	[8],[20],[21]	11.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(35)		(34)
Amount of Interest, Fees or Dividends Credited to Income					2,535		2,785
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					21,960		22,040
Gross Additions					35		34
Gross Reductions					1,235		114
Ending balance		$ 20,760	[5],[8],[20]	$ 21,960	20,760	[5],[8],[20]	21,960
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC, Secured Debt
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[32]				12
Ending balance	[5],[15],[18],[19]	31			31
Investment, Identifier [Axis]: Other Controlled Investments, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)
Amount of Unrealized Gain/(Loss)
Amount of Interest, Fees or Dividends Credited to Income
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance
Gross Additions
Gross Reductions
Ending balance
Investment, Identifier [Axis]: Other, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)
Amount of Unrealized Gain/(Loss)
Amount of Interest, Fees or Dividends Credited to Income
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance
Gross Additions
Gross Reductions
Ending balance
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,140		(680)
Amount of Interest, Fees or Dividends Credited to Income					418		24
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					17,110	[2],[7]	16,980
Gross Additions					1,140		0
Gross Reductions					0		680
Ending balance		18,250	[5],[8],[26]	16,300	18,250	[5],[8],[26]	16,300
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					61		146
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					514	[2],[7],[24],[38]	368
Gross Additions					61		146
Gross Reductions					0		0
Ending balance		$ 575	[5],[8],[26],[37]	$ 514	$ 575	[5],[8],[26],[37]	$ 514
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.00%	[8],[20],[21],[22]	8.75%	7.00%	[8],[20],[21],[22]	8.75%	8.75%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1)		(1)
Amount of Interest, Fees or Dividends Credited to Income					1		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[30],[33]	0
Gross Additions					1		1
Gross Reductions					1		1
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.48%	[8],[20]	14.23%	11.48%	[8],[20]	14.23%	13.73%	[7],[30]
Spread		7.00%	[8],[20],[21]	8.75%	7.00%	[8],[20],[21]	8.75%	8.75%	[7],[30],[31]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(35)		(53)
Amount of Interest, Fees or Dividends Credited to Income					1,402		2,135
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,456	[2],[7],[30]	19,877
Gross Additions					35		53
Gross Reductions					1,300		2,473
Ending balance		$ 15,191	[5],[8],[20]	$ 17,457	$ 15,191	[5],[8],[20]	17,457
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.75%	[18],[19],[20],[29],[44],[45]		11.75%	[18],[19],[20],[29],[44],[45]		13.03%	[23],[25],[30],[42],[43]
Spread		7.25%	[18],[19],[20],[21],[29],[44],[45]		7.25%	[18],[19],[20],[21],[29],[44],[45]		8.25%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 6,769
Ending balance	[5],[18],[19],[20],[29],[44],[45]	$ 6,838			$ 6,838
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.71%	[18],[19],[20],[44],[45]		11.71%	[18],[19],[20],[44],[45]		13.03%	[23],[25],[30],[42],[43]
Spread		7.25%	[18],[19],[20],[21],[44],[45]		7.25%	[18],[19],[20],[21],[44],[45]		8.25%	[23],[25],[30],[31],[42],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[42],[43]				$ 17,631
Ending balance	[5],[18],[19],[20],[44],[45]	$ 15,664			15,664
Investment, Identifier [Axis]: Peaches Holding Corporation, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[25]				4,540
Ending balance	[5],[19]	0			0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							16,450
Amount of Interest, Fees or Dividends Credited to Income							8,800
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							44,090
Gross Additions							16,450
Gross Reductions							0
Ending balance				60,540			60,540
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							(1)
Amount of Interest, Fees or Dividends Credited to Income							339
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,500
Gross Additions							1,501
Gross Reductions							5,001
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				12.00%			12.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							148
Amount of Interest, Fees or Dividends Credited to Income							2,915
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							20,000
Gross Additions							23,219
Gross Reductions							0
Ending balance				$ 43,219			$ 43,219
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.00%			12.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(18)
Amount of Interest, Fees or Dividends Credited to Income							2,546
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							27,681
Gross Additions							18
Gross Reductions							18
Ending balance				$ 27,681			27,681
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					1,280		4,820
Amount of Interest, Fees or Dividends Credited to Income					1,392		1,721
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					18,360	[2],[7],[24]	12,540
Gross Additions					1,280		4,820
Gross Reductions					0		0
Ending balance		19,640	[5],[8],[26]	17,360	19,640	[5],[8],[26]	17,360
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(2)		13
Amount of Interest, Fees or Dividends Credited to Income					8		14
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		444
Gross Additions					2		16
Gross Reductions					2		460
Ending balance		$ 0	[5],[8],[22]	$ 0	$ 0	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]	13.00%	13.00%	[8]	13.00%	13.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(47)		243
Amount of Interest, Fees or Dividends Credited to Income					2,826		3,046
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					28,640	[2],[7]	30,339
Gross Additions					47		301
Gross Reductions					847		1,600
Ending balance		$ 27,840	[5],[8]	$ 29,040	27,840	[5],[8]	29,040
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, ecured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[33]				0
Investment, Identifier [Axis]: Power System Solutions, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				3,800
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				(63)
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.86%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				6,124
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.90%
Spread	[23],[25],[30],[31]							6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 18,233
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		9.80%	[18],[19],[20],[44]		9.80%	[18],[19],[20],[44]		10.58%	[23],[25],[30]
Spread		5.50%	[18],[19],[20],[21],[44]		5.50%	[18],[19],[20],[21],[44]		5.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 7,880
Ending balance	[5],[18],[19],[20],[44]	$ 7,820			$ 7,820
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.50%	[18],[19],[20],[44]		9.50%	[18],[19],[20],[44]		9.83%	[23],[25],[30]
Spread		5.50%	[18],[19],[20],[21],[44]		5.50%	[18],[19],[20],[21],[44]		5.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 752
Ending balance	[5],[18],[19],[20],[44]	$ 747			$ 747
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.50%	[18],[19],[20],[44]		9.50%	[18],[19],[20],[44]		9.83%	[23],[25],[30]
Spread		5.50%	[18],[19],[20],[21],[44]		5.50%	[18],[19],[20],[21],[44]		5.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 756
Ending balance	[5],[18],[19],[20],[44]	$ 750			$ 750
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		9.25%	[18],[19],[20],[44]		9.25%	[18],[19],[20],[44]		9.58%	[23],[25],[30]
Spread		5.25%	[18],[19],[20],[21],[44]		5.25%	[18],[19],[20],[21],[44]		5.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 859
Ending balance	[5],[18],[19],[20],[44]	$ 853			$ 853
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 5
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[44]	9.58%			9.58%
Spread	[18],[19],[20],[21],[44]	5.25%			5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[44]	$ 1,890			$ 1,890
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 6
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[44]	9.55%			9.55%
Spread	[18],[19],[20],[21],[44]	5.25%			5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[44]	$ 2,026			$ 2,026
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				4,861
Investment, Identifier [Axis]: Principle Environmental, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					100		40
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					600	[2],[7]	510
Gross Additions					100		40
Gross Reductions					0		0
Ending balance		700	[5],[8]	550	700	[5],[8]	550
Investment, Identifier [Axis]: Principle Environmental, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					2,100		790
Amount of Interest, Fees or Dividends Credited to Income					1,186		737
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,600	[2],[7],[24]	10,750
Gross Additions					2,100		790
Gross Reductions					0		0
Ending balance		$ 14,700	[5],[8],[26]	$ 11,540	$ 14,700	[5],[8],[26]	$ 11,540
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]	13.00%	13.00%	[8]	13.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					497		601
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,861		5,829
Gross Additions					14		18
Gross Reductions					0		0
Ending balance		$ 4,875	[5],[8]	$ 5,847	4,875	[5],[8]	5,847
Investment, Identifier [Axis]: Purge Rite, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				2,060
Ending balance	[5],[18],[19]	15,650			15,650
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				3,248
Ending balance	[5],[18],[19]	3,248			3,248
Investment, Identifier [Axis]: Quality Lease Service, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					460	[2],[7]	460
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		460	[5],[8]	460	460	[5],[8]	460
Investment, Identifier [Axis]: Quality Lease Service, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							(2,504)
Amount of Unrealized Gain/(Loss)							2,500
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							2,500
Gross Reductions							2,500
Ending balance				0			0
Investment, Identifier [Axis]: RA Outdoors (Aspira) LLC, Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0		$ 0	$ 0		$ 0
Investment, Identifier [Axis]: RA Outdoors (Aspira) LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%		11.59%	11.25%		11.59%
Spread		6.75%		6.75%	6.75%		6.75%
PIK Rate		11.25%		11.59%	11.25%		11.59%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(148)		(73)
Amount of Interest, Fees or Dividends Credited to Income					120		28
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,257		771
Gross Additions					82		498
Gross Reductions					189		38
Ending balance		$ 1,150		$ 1,231	$ 1,150		$ 1,231
Investment, Identifier [Axis]: RA Outdoors (Aspira) LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.25%		11.59%	11.25%		11.59%
Spread		6.75%		6.75%	6.75%		6.75%
PIK Rate		11.25%		11.59%	11.25%		11.59%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1,553)		(762)
Amount of Interest, Fees or Dividends Credited to Income					1,240		294
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,155		12,513
Gross Additions					842		464
Gross Reductions					1,972		100
Ending balance		$ 12,025		$ 12,877	$ 12,025		12,877
Investment, Identifier [Axis]: RA Outdoors (Aspira) LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread		6.75%			6.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors (Aspira) LLC, Secured Debt 4
Schedule of Investments [Line Items]
Spread		6.75%			6.75%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			0
Investment, Identifier [Axis]: RA Outdoors LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23],[42]				0
Ending balance	[5],[10],[18]	$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.25%	[10],[18],[20]		11.25%	[10],[18],[20]		11.74%	[9],[23],[30],[42]
Spread		6.75%	[10],[18],[20],[21]		6.75%	[10],[18],[20],[21]		6.75%	[9],[23],[30],[31],[42]
PIK Rate		11.25%	[10],[13],[18],[20]		11.25%	[10],[13],[18],[20]		11.74%	[9],[14],[23],[30],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23],[30],[42]				$ 1,257
Ending balance	[5],[10],[18],[20]	$ 1,150			$ 1,150
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[9],[23],[30],[42]							11.74%
Spread		6.75%	[10],[18],[20],[21],[22]		6.75%	[10],[18],[20],[21],[22]		6.75%	[9],[23],[30],[31],[42]
PIK Rate	[9],[14],[23],[30],[42]							11.74%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23],[30],[42]				$ 13,155
Ending balance	[5],[10],[18],[20],[22]	$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 3
Schedule of Investments [Line Items]
Spread	[10],[18],[20],[21],[22]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[18],[20],[22]	$ 0			$ 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[10],[18],[20]	11.25%			11.25%
Spread	[10],[18],[20],[21]	6.75%			6.75%
PIK Rate	[10],[13],[18],[20]	11.25%			11.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[18],[20]	$ 12,025			$ 12,025
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 5
Schedule of Investments [Line Items]
Spread	[10],[18],[20],[21],[22]	6.75%			6.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10],[18],[20],[22]	$ 0			$ 0
Investment, Identifier [Axis]: RFG AcquireCo, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					11,401
Gross Reductions					0
Ending balance	[5],[10]	11,401			11,401
Investment, Identifier [Axis]: RFG AcquireCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					8
Ending balance	[5],[10],[22]	(8)			(8)
Investment, Identifier [Axis]: RFG AcquireCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance	[5],[10],[22]	$ 0			$ 0
Investment, Identifier [Axis]: RFG AcquireCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[10]	12.50%			12.50%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					2,143
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					33,683
Gross Reductions					0
Ending balance	[5],[10]	$ 33,683			33,683
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					1,049
Gross Reductions					0
Ending balance	[5],[10]	1,049			1,049
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					3
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					19
Ending balance	[5],[10],[22]	$ (19)			$ (19)
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[10]	14.00%			14.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					414
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					8,927
Gross Reductions					1,300
Ending balance	[5],[10]	$ 7,627			$ 7,627
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.71%	[18],[19],[20],[29]		10.71%	[18],[19],[20],[29]		11.22%	[23],[25],[30],[36]
Spread		6.50%	[18],[19],[20],[21],[29]		6.50%	[18],[19],[20],[21],[29]		6.75%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 3,517
Ending balance	[5],[18],[19],[20],[29]	$ 1,093			$ 1,093
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.81%	[18],[19],[20]		10.81%	[18],[19],[20]		11.38%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		6.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 34,046
Ending balance	[5],[18],[19],[20]	$ 33,388			$ 33,388
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.83%	[18],[19],[20]		10.83%	[18],[19],[20]		11.43%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		6.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 22,101
Ending balance	[5],[18],[19],[20]	$ 21,684			21,684
Investment, Identifier [Axis]: River Aggregates, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		(409)
Amount of Unrealized Gain/(Loss)					60		80
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					9,530	[2],[7],[38]	3,710
Gross Additions					60		80
Gross Reductions					0		0
Ending balance		9,590	[5],[8],[37]	3,790	9,590	[5],[8],[37]	3,790
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[8]	$ 0	0	[5],[8]	$ 0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1
Schedule of Investments [Line Items]
PIK Rate				10.00%			10.00%	10.00%	[7],[14],[32],[33]
Amount of Realized Gain/(Loss)					0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					27		8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(39)	[2],[7],[32],[33]	(26)
Gross Additions					0		2
Gross Reductions					17		0
Ending balance		$ (56)	[5],[8],[15],[22]	$ (24)	$ (56)	[5],[8],[15],[22]	$ (24)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%	[8],[15]	12.50%	12.50%	[8],[15]	12.50%	12.50%	[7],[32]
PIK Rate		10.00%	[8],[13],[15]	10.00%	10.00%	[8],[13],[15]	10.00%	10.00%	[7],[14],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					224		(14,949)
Amount of Interest, Fees or Dividends Credited to Income					0		1,083
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					14,562	[2],[7],[32]	30,798
Gross Additions					0		18
Gross Reductions					417		15,399
Ending balance		$ 14,145	[5],[8],[15]	$ 15,417	$ 14,145	[5],[8],[15]	15,417
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		8.00%	[18],[19],[20],[21],[22]		8.00%	[18],[19],[20],[21],[22]		8.00%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ 0
Ending balance	[5],[18],[19],[20],[22]	$ 0			$ 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.55%	[18],[19],[20]		11.55%	[18],[19],[20]		11.85%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,071
Ending balance	[5],[18],[19],[20]	$ 2,531			$ 2,531
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.55%	[18],[19],[20]		13.55%	[18],[19],[20]		13.85%	[23],[25],[30]
Spread		9.00%	[18],[19],[20],[21]		9.00%	[18],[19],[20],[21]		9.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,052
Ending balance	[5],[18],[19],[20]	$ 2,529			$ 2,529
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.94%	[18],[19],[20]		11.94%	[18],[19],[20]		12.52%	[23],[25],[30]
Spread		7.75%	[18],[19],[20],[21]		7.75%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
PIK Rate		2.00%	[13],[18],[19],[20]		2.00%	[13],[18],[19],[20]		2.00%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 5,888
Ending balance	[5],[18],[19],[20]	$ 3,696			$ 3,696
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.94%	[18],[19],[20]		11.94%	[18],[19],[20]		12.52%	[23],[25],[30]
Spread		7.75%	[18],[19],[20],[21]		7.75%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
PIK Rate		2.00%	[13],[18],[19],[20]		2.00%	[13],[18],[19],[20]		2.00%	[14],[23],[25],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 7,449
Ending balance	[5],[18],[19],[20]	$ 6,888			6,888
Investment, Identifier [Axis]: SI East, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[24]				13,660
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					630		(2,990)
Amount of Interest, Fees or Dividends Credited to Income					313		1,994
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					13,660		19,170
Gross Additions					630		0
Gross Reductions					0		2,990
Ending balance		$ 14,290	[5],[10]	$ 16,180	$ 14,290	[5],[10]	$ 16,180
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.85%	[10]	11.75%	11.85%	[10]	11.75%	11.75%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(3)		(3)
Amount of Interest, Fees or Dividends Credited to Income					219		195
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,250	[2],[9]	1,125
Gross Additions					3		2,253
Gross Reductions					3		1,128
Ending balance		$ 2,250	[5],[10]	$ 2,250	$ 2,250	[5],[10]	2,250
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.78%	[10],[57]		12.78%	[10],[57]		12.79%	[9],[58]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					39		(241)
Amount of Interest, Fees or Dividends Credited to Income					6,575		2,600
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					67,661	[2],[9],[58]	54,536
Gross Additions					0		0
Gross Reductions					626		54,536
Ending balance		$ 67,035	[5],[10],[57]	$ 0	67,035	[5],[10],[57]	$ 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				12.63%			12.63%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							54
Amount of Interest, Fees or Dividends Credited to Income							3,647
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							67,661
Gross Reductions							0
Ending balance				$ 67,661			67,661
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				610
Ending balance	[5],[18],[19]	$ 630			$ 630
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[29]	11.24%			11.24%
Spread		7.00%	[18],[19],[20],[21],[29]		7.00%	[18],[19],[20],[21],[29]		7.50%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ 0
Ending balance	[5],[18],[19],[20],[29]	$ 3,194			$ 3,194
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.15%	[18],[19],[20]		11.15%	[18],[19],[20]		11.98%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 15,569
Ending balance	[5],[18],[19],[20]	$ 15,449			15,449
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(450)		206
Amount of Interest, Fees or Dividends Credited to Income					873		234
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,440	[2],[9],[24]	2,310
Gross Additions					0		206
Gross Reductions					450		456
Ending balance		$ 1,990	[5],[10],[26]	$ 2,060	$ 1,990	[5],[10],[26]	$ 2,060
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.00%	[10]	14.00%	14.00%	[10]	14.00%	14.00%	[9]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							61
Amount of Interest, Fees or Dividends Credited to Income							1,886
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 16,320	[2],[9]	11,440
Gross Additions							7,600
Gross Reductions							2,240
Ending balance		$ 25,080	[5],[10]	$ 16,800	25,080	[5],[10]	16,800
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					(139)
Amount of Interest, Fees or Dividends Credited to Income					510
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					16,320
Gross Additions					0
Gross Reductions					16,320
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.00%			14.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					246
Amount of Interest, Fees or Dividends Credited to Income					2,297
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					25,880
Gross Reductions					800
Ending balance		$ 25,080			25,080
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				885
Ending balance	[5],[18],[19]	$ 941			$ 941
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.26%			9.26%
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.25%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ 0
Ending balance	[5],[18],[19],[20]	$ 955			$ 955
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		9.26%	[18],[19],[20]		9.26%	[18],[19],[20]		9.71%	[23],[25],[30]
Spread		5.00%	[18],[19],[20],[21]		5.00%	[18],[19],[20],[21]		5.25%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 53,320
Ending balance	[5],[18],[19],[20]	$ 53,320			$ 53,320
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.26%			9.26%
Spread	[18],[19],[20],[21]	5.00%			5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 10,501			$ 10,501
Investment, Identifier [Axis]: Specialized Aviation Holdings, LLC, Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10]	15,000			15,000
Investment, Identifier [Axis]: Specialized Aviation Holdings, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					16
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					15,000
Gross Reductions					0
Ending balance		$ 15,000			$ 15,000
Investment, Identifier [Axis]: Specialized Aviation Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[10]	13.00%			13.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					967
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					29,710
Gross Reductions					0
Ending balance	[5],[10]	$ 29,710			29,710
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[23]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10],[18]	$ 0	$ 0	[5],[10],[18]	$ 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		8.50%	[10],[18]	8.50%	8.50%	[10],[18]	8.50%
PIK Rate		8.50%	[10],[13],[18]	8.50%	8.50%	[10],[13],[18]	8.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					558		(1,546)
Amount of Interest, Fees or Dividends Credited to Income					13		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					204		3,190
Gross Additions					570		0
Gross Reductions					0		1,546
Ending balance		$ 774	[5],[10],[18]	$ 1,644	$ 774	[5],[10],[18]	$ 1,644
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.50%	[10],[15],[18]	8.50%	8.50%	[10],[15],[18]	8.50%	8.50%	[9],[23],[32]
PIK Rate		8.50%	[10],[13],[15],[18]	8.50%	8.50%	[10],[13],[15],[18]	8.50%	8.50%	[9],[14],[23],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(298)		0
Amount of Interest, Fees or Dividends Credited to Income					0		1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,644	[2],[9],[23],[32]	0
Gross Additions					0		201
Gross Reductions					298		0
Ending balance		$ 1,346	[5],[10],[15],[18]	$ 201	1,346	[5],[10],[15],[18]	201
Investment, Identifier [Axis]: Student Resource Center, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[9],[23]							8.50%
PIK Rate	[9],[14],[23]							8.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[23]				204
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					6,190		1,510
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,530	[2],[9]	5,940
Gross Additions					6,190		1,510
Gross Reductions					0		0
Ending balance		$ 16,720	[5],[10]	7,450	$ 16,720	[5],[10]	7,450
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Secured Debt
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							1,193
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							20,427
Gross Additions							73
Gross Reductions							20,500
Ending balance				0			0
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.50%	[18],[19],[20],[21],[22]		5.50%	[18],[19],[20],[21],[22]		5.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (125)
Ending balance	[5],[18],[19],[20],[22]	$ (81)			$ (81)
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread		5.50%	[18],[19],[20],[21],[22]		5.50%	[18],[19],[20],[21],[22]		5.75%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (94)
Ending balance	[5],[18],[19],[20],[22]	$ (61)			$ (61)
Investment, Identifier [Axis]: TEC Services, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		9.60%	[18],[19],[20]		9.60%	[18],[19],[20]		10.13%	[23],[25],[30]
Spread		5.50%	[18],[19],[20],[21]		5.50%	[18],[19],[20],[21]		5.75%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 41,709
Ending balance	[5],[18],[19],[20]	$ 31,879			31,879
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[11],[25]							9.65%
Spread	[11],[25],[31]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25]				14,781
Investment, Identifier [Axis]: Tectonic Financial, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[24],[25]				4,720
Ending balance	[5],[19],[26]	4,720			4,720
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[8]	0	0	[5],[8]	0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[8]	0	0	[5],[8]	0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8]	$ 0	$ 0	[5],[8]	$ 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[8],[15],[27]	12.00%	12.00%	[8],[15],[27]	12.00%	12.00%	[7],[28],[32]
PIK Rate		12.00%	[8],[13],[15],[27]	12.00%	12.00%	[8],[13],[15],[27]	12.00%	12.00%	[7],[14],[28],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					222		0
Amount of Interest, Fees or Dividends Credited to Income					0		56
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,646	[2],[7],[28],[32]	1,726
Gross Additions					0		0
Gross Reductions					736		0
Ending balance		$ 910	[5],[8],[15],[27]	$ 1,726	$ 910	[5],[8],[15],[27]	$ 1,726
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[8],[15],[27]	12.00%	12.00%	[8],[15],[27]	12.00%	12.00%	[7],[28],[32]
PIK Rate		12.00%	[8],[13],[15],[27]	12.00%	12.00%	[8],[13],[15],[27]	12.00%	12.00%	[7],[14],[28],[32]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(1,040)		(9,605)
Amount of Interest, Fees or Dividends Credited to Income					0		461
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,603	[2],[7],[28],[32]	14,262
Gross Additions					0		0
Gross Reductions					1,039		9,605
Ending balance		$ 2,564	[5],[8],[15],[27]	$ 4,657	2,564	[5],[8],[15],[27]	4,657
Investment, Identifier [Axis]: Televerde, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					570		(1,224)
Amount of Interest, Fees or Dividends Credited to Income					298		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,252	[2],[7]	4,734
Gross Additions					570		0
Gross Reductions					0		1,224
Ending balance		4,822	[5],[8],[26]	3,510	4,822	[5],[8],[26]	3,510
Investment, Identifier [Axis]: Televerde, LLC, Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,794	[2],[7]	1,794
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		1,794	[5],[8]	1,794	1,794	[5],[8]	1,794
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[38]				2,290
Ending balance	[5],[18],[19],[37]	2,620			2,620
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		272
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					287	[2],[9],[24]	6,400
Gross Additions					26		0
Gross Reductions					0		0
Ending balance		313	[5],[10]	6,400	313	[5],[10]	6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					179		20
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					6,400	[2],[9],[24]	172
Gross Additions					0		90
Gross Reductions					0		0
Ending balance		$ 6,400	[5],[10],[26]	262	$ 6,400	[5],[10],[26]	262
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.00%	[10]		10.00%	[10]		10.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					63		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					394	[2],[9]	150
Gross Additions					6,163		643
Gross Reductions					6,000		800
Ending balance		$ 557	[5],[10]	$ (7)	$ 557	[5],[10]	$ (7)
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%	[10]	10.00%	10.00%	[10]	10.00%	10.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(11)		0
Amount of Interest, Fees or Dividends Credited to Income					434		603
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,053	[2],[9]	7,347
Gross Additions					10		21
Gross Reductions					411		1,920
Ending balance		$ 4,652	[5],[10]	$ 5,448	$ 4,652	[5],[10]	5,448
Investment, Identifier [Axis]: Titan Meter Midco Corp., Preferred Equity
Schedule of Investments [Line Items]
Total Rate		8.00%	[18],[19]		8.00%	[18],[19]		8.00%	[23],[25]
PIK Rate		8.00%	[13],[18],[19]		8.00%	[13],[18],[19]		8.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 1,400
Ending balance	[5],[18],[19]	$ 1,400			$ 1,400
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.50%			10.50%
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		6.50%	[23],[25],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				$ (105)
Ending balance	[5],[18],[19],[20]	$ 1,439			$ 1,439
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.50%	[18],[19],[20]		10.50%	[18],[19],[20]		10.83%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		6.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 33,927
Ending balance	[5],[18],[19],[20]	$ 33,670			$ 33,670
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.50%			10.50%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 4,308			$ 4,308
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.50%			10.50%
Spread	[18],[19],[20],[21]	6.50%			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 4,875			$ 4,875
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					4,780		(3,240)
Amount of Interest, Fees or Dividends Credited to Income					87		87
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,570	[2],[7],[24]	12,740
Gross Additions					4,780		0
Gross Reductions					0		3,240
Ending balance		13,350	[5],[8],[26]	9,500	13,350	[5],[8],[26]	9,500
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					(1)	[2],[7],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ (1)	[5],[8],[22]	$ 0	$ (1)	[5],[8],[22]	$ 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%	[8]	13.50%	13.50%	[8]	13.50%	13.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		64
Amount of Interest, Fees or Dividends Credited to Income					831		809
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,855	[2],[7]	7,920
Gross Additions					20		0
Gross Reductions					0		0
Ending balance		$ 7,875	[5],[8]	$ 7,920	$ 7,875	[5],[8]	7,920
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.72%	[12],[15],[19],[20]		11.72%	[12],[15],[19],[20]		11.90%	[11],[25],[30],[32]
Spread		7.40%	[12],[15],[19],[20],[21]		7.40%	[12],[15],[19],[20],[21]		7.40%	[11],[25],[30],[31],[32]
PIK Rate		6.25%	[12],[13],[15],[19],[20]		6.25%	[12],[13],[15],[19],[20]		6.00%	[11],[14],[25],[30],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30],[32]				$ 3,910
Ending balance	[5],[12],[15],[19],[20]	$ 3,975			3,975
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[32]				0
Ending balance	[5],[12],[15],[19]	0			0
Investment, Identifier [Axis]: UPS Intermediate, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				1,443
Ending balance	[5],[18],[19]	$ 1,540			$ 1,540
Investment, Identifier [Axis]: UPS Intermediate, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.41%	[18],[19],[20]		10.41%	[18],[19],[20]		10.36%	[23],[25],[30]
Spread		6.25%	[18],[19],[20],[21]		6.25%	[18],[19],[20],[21]		6.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 42,904
Ending balance	[5],[18],[19],[20]	$ 42,688			42,688
Investment, Identifier [Axis]: UniTek Global Services, Inc., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[11]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[10],[12]	$ 0	0	[5],[10],[12]	$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					104
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,181
Gross Additions					1,633
Gross Reductions					4,814
Ending balance		$ 0			$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1
Schedule of Investments [Line Items]
Total Rate		20.00%	[10],[12]	20.00%	20.00%	[10],[12]	20.00%
PIK Rate		20.00%	[10],[12],[13]	20.00%	20.00%	[10],[12],[13]	20.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(224)
Amount of Interest, Fees or Dividends Credited to Income							418
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,833
Gross Additions							418
Gross Reductions							224
Ending balance		$ 9,388	[5],[10],[12]	$ 3,027	$ 9,388	[5],[10],[12]	$ 3,027
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2
Schedule of Investments [Line Items]
Total Rate		19.00%	[10],[12]	20.00%	19.00%	[10],[12]	20.00%	20.00%	[9],[11]
PIK Rate		19.00%	[10],[12],[13]	20.00%	19.00%	[10],[12],[13]	20.00%	20.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							250
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 4,272	[2],[9],[11]	3,698
Gross Additions							574
Gross Reductions							0
Ending balance		$ 0	[5],[10],[12]	$ 4,272	$ 0	[5],[10],[12]	$ 4,272
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3
Schedule of Investments [Line Items]
Total Rate		13.50%	[10],[12]	19.00%	13.50%	[10],[12]	19.00%	19.00%	[9],[11]
PIK Rate		13.50%	[10],[12],[13]	19.00%	13.50%	[10],[12],[13]	19.00%	19.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[9],[11]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[10],[12]	$ 0	0	[5],[10],[12]	$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4
Schedule of Investments [Line Items]
Total Rate				13.50%			13.50%	13.50%	[9],[11]
PIK Rate				13.50%			13.50%	13.50%	[9],[11],[14]
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					$ 0	[2],[9],[11]	0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 6
Schedule of Investments [Line Items]
Total Rate		20.00%			20.00%
PIK Rate		20.00%			20.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					(788)
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,272
Gross Additions					5,116
Gross Reductions					0
Ending balance		$ 9,388			$ 9,388
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 7
Schedule of Investments [Line Items]
Total Rate		19.00%			19.00%
PIK Rate		19.00%			19.00%
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					0
Gross Reductions					0
Ending balance		$ 0			0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1
Schedule of Investments [Line Items]
Total Rate				15.00%			15.00%	15.00%	[9],[11]
PIK Rate				15.00%			15.00%	15.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)					3,763		$ 0
Amount of Unrealized Gain/(Loss)					(2,384)		153
Amount of Interest, Fees or Dividends Credited to Income					41		204
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,642	[2],[9],[11]	3,889
Gross Additions					505		1,610
Gross Reductions					6,147		0
Ending balance		0		$ 5,499	0		$ 5,499
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2
Schedule of Investments [Line Items]
Total Rate				15.00%			15.00%	15.00%	[9],[11]
PIK Rate				15.00%			15.00%	15.00%	[9],[11],[14]
Amount of Realized Gain/(Loss)					1,743		$ 0
Amount of Unrealized Gain/(Loss)					(1,155)		61
Amount of Interest, Fees or Dividends Credited to Income					21		99
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,663	[2],[9],[11]	1,908
Gross Additions					235		686
Gross Reductions					2,898		0
Ending balance		0		$ 2,594	0		2,594
Investment, Identifier [Axis]: UniTek Global Services, Inc.,Preferred Stock 1
Schedule of Investments [Line Items]
Total Rate	[9],[11],[24]							20.00%
PIK Rate	[9],[11],[14],[24]							20.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[9],[11],[24]				3,181
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(134)		282
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,732	[2],[9],[42],[46],[47]	5,694
Gross Additions					0		283
Gross Reductions					604		336
Ending balance		4,128	[5],[10],[44],[48],[49]	5,641	4,128	[5],[10],[44],[48],[49]	5,641
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP, LP Interests
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(405)		1,453
Amount of Interest, Fees or Dividends Credited to Income					120		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					5,612	[2],[9],[42],[46],[47]	2,838
Gross Additions					447		3,953
Gross Reductions					897		0
Ending balance		$ 5,162	[5],[10],[26],[44],[48],[49]	6,791	$ 5,162	[5],[10],[26],[44],[48],[49]	6,791
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							0
Gross Additions							0
Gross Reductions							0
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate				14.00%			14.00%
PIK Rate				14.00%			14.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(150)
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							150
Gross Additions							0
Gross Reductions							150
Ending balance				$ 0			$ 0
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity
Schedule of Investments [Line Items]
Total Rate		9.00%	[10],[26]	9.00%	9.00%	[10],[26]	9.00%	9.00%	[9],[24]
PIK Rate		9.00%	[10],[13],[26]	9.00%	9.00%	[10],[13],[26]	9.00%	9.00%	[9],[14],[24]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					294		228
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					4,320	[2],[9],[24]	0
Gross Additions					294		4,228
Gross Reductions					0		0
Ending balance		$ 4,614	[5],[10],[26]	$ 4,228	$ 4,614	[5],[10],[26]	$ 4,228
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		13.50%	[10]	13.50%	13.50%	[10]	13.50%	13.50%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					914		939
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					8,727	[2],[9]	0
Gross Additions					13		8,722
Gross Reductions					0		0
Ending balance		$ 8,740	[5],[10]	$ 8,722	$ 8,740	[5],[10]	8,722
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.63%	[18],[19],[20]		11.63%	[18],[19],[20]		12.75%	[23],[25],[30]
Spread		7.50%	[18],[19],[20],[21]		7.50%	[18],[19],[20],[21]		7.50%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 4,000
Ending balance	[5],[18],[19],[20]	$ 4,000			4,000
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				2,640
Ending balance	[5],[18],[19],[26]	3,160			3,160
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					99		320
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					12,240	[2],[7],[24],[38]	12,240
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 12,240	[5],[8],[26],[37]	$ 12,240	$ 12,240	[5],[8],[26],[37]	$ 12,240
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[8],[20],[21],[22]	6.00%	6.00%	[8],[20],[21],[22]	6.00%	6.00%	[7],[30],[31],[33]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					12		12
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[30],[33]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[20],[22]	$ 0	$ 0	[5],[8],[20],[22]	$ 0
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%	[8]	11.50%	11.50%	[8]	11.50%	11.50%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					2,222		2,457
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					25,661	[2],[7]	28,035
Gross Additions					42		47
Gross Reductions					1,280		1,160
Ending balance		$ 24,423	[5],[8]	$ 26,922	24,423	[5],[8]	26,922
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[25],[30],[31],[33]							5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30],[33]				(185)
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[25],[30]							10.85%
Spread	[11],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30]				17,681
Investment, Identifier [Axis]: Victory Energy Operations, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					399
Amount of Interest, Fees or Dividends Credited to Income					427
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				22,686
Gross Additions					399
Gross Reductions					215
Ending balance	[5],[8],[26]	22,870			22,870
Investment, Identifier [Axis]: Victory Energy Operations, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					97
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7],[33]				(33)
Gross Additions					1,728
Gross Reductions					1,723
Ending balance	[5],[8],[22]	$ (28)			$ (28)
Investment, Identifier [Axis]: Victory Energy Operations, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%	[8]		13.00%	[8]		13.00%	[7]
Amount of Realized Gain/(Loss)					$ 0
Amount of Unrealized Gain/(Loss)					0
Amount of Interest, Fees or Dividends Credited to Income					4,829
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				47,792
Gross Additions					73
Gross Reductions					0
Ending balance	[5],[8]	$ 47,865			47,865
Investment, Identifier [Axis]: Vision Interests, Inc., Series A Preferred Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)							0
Amount of Unrealized Gain/(Loss)							0
Amount of Interest, Fees or Dividends Credited to Income							0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							3,000
Gross Additions							0
Gross Reductions							0
Ending balance				3,000			3,000
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 4,676
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.28%	[18],[19],[29]		11.28%	[18],[19],[29]		11.55%	[23],[25]
Spread		7.00%	[18],[19],[21],[29]		7.00%	[18],[19],[21],[29]		7.00%	[23],[25],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 5,795
Ending balance	[5],[18],[19],[29]	$ 7,727			$ 7,727
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.26%	[18],[19],[20]		11.26%	[18],[19],[20]		11.47%	[23],[25],[30]
Spread		7.00%	[18],[19],[20],[21]		7.00%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 42,075
Ending balance	[5],[18],[19],[20]	$ 41,756			41,756
Investment, Identifier [Axis]: Volusion, LLC, Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		0	[5],[8]	0	0	[5],[8]	0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					22		0
Amount of Unrealized Gain/(Loss)					(1,627)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					7,003	[2],[7]	0
Gross Additions					22		0
Gross Reductions					3,356		0
Ending balance		3,669	[5],[8]	0	3,669	[5],[8]	0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		4,421
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	7,250
Gross Additions					0		4,422
Gross Reductions					0		4,212
Ending balance		0	[5],[8]	7,460	0	[5],[8]	7,460
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8]	$ 0	$ 0	[5],[8]	$ 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%	[8],[27]	10.00%	10.00%	[8],[27]	10.00%	10.00%	[7]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					159		160
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					2,100	[2],[7]	2,100
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 2,100	[5],[8],[27]	$ 2,100	2,100	[5],[8],[27]	2,100
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				1,210
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread	[23],[25],[30],[31],[33]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[33]				(2)
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.74%
Spread	[23],[25],[30],[31]							7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				1,759
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 3,120			$ 3,120
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.81%			9.81%
Spread	[18],[19],[20],[21]	5.50%			5.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 10			$ 10
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.78%			9.78%
Spread	[18],[19],[20],[21]	5.50%			5.50%
PIK Rate	[13],[18],[19],[20]	9.78%			9.78%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 7,677			$ 7,677
Investment, Identifier [Axis]: Wash & Wax Systems LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19]	12.00%			12.00%
PIK Rate	[13],[18],[19]	12.00%			12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19]	$ 5,079			$ 5,079
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[18],[19]		12.00%	[18],[19]		12.00%	[23],[25]
PIK Rate		4.00%	[13],[18],[19]		4.00%	[13],[18],[19]		4.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 2,142
Ending balance	[5],[18],[19]	$ 1,951			$ 1,951
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[18],[19]		12.00%	[18],[19]		12.00%	[23],[25]
PIK Rate		4.00%	[13],[18],[19]		4.00%	[13],[18],[19]		4.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 369
Ending balance	[5],[18],[19]	$ 337			$ 337
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		12.00%	[18],[19]		12.00%	[18],[19]		12.00%	[23],[25]
PIK Rate		4.00%	[13],[18],[19]		4.00%	[13],[18],[19]		4.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 15,227
Ending balance	[5],[18],[19]	$ 13,867			$ 13,867
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		12.00%	[18],[19]		12.00%	[18],[19]		12.00%	[23],[25]
PIK Rate		4.00%	[13],[18],[19]		4.00%	[13],[18],[19]		4.00%	[14],[23],[25]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25]				$ 12,180
Ending balance	[5],[18],[19]	$ 11,092			11,092
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[24],[25]				4,920
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30],[53]							9.47%
Spread	[23],[25],[30],[31],[53]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[53]				2,381
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							9.60%
Spread	[23],[25],[30],[31]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				10,550
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							9.60%
Spread	[23],[25],[30],[31]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				5,250
Investment, Identifier [Axis]: Wildcats Topco LLC (NVS Heritage), Common Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0
Amount of Unrealized Gain/(Loss)					333
Amount of Interest, Fees or Dividends Credited to Income					9
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0
Gross Additions					22,760
Gross Reductions					0
Ending balance		22,760			22,760
Investment, Identifier [Axis]: Wildcats Topco LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[10]	$ 22,760			$ 22,760
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.77%	[18],[19],[20],[29]		11.77%	[18],[19],[20],[29]		12.81%	[23],[25],[30],[36]
Spread		7.50%	[18],[19],[20],[21],[29]		7.50%	[18],[19],[20],[21],[29]		8.00%	[23],[25],[30],[31],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30],[36]				$ 2,138
Ending balance	[5],[18],[19],[20],[29]	$ 1,289			$ 1,289
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.05%	[18],[19],[20]		12.05%	[18],[19],[20]		12.85%	[23],[25],[30]
Spread		7.50%	[18],[19],[20],[21]		7.50%	[18],[19],[20],[21]		8.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 1,821
Ending balance	[5],[18],[19],[20]	$ 1,874			$ 1,874
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.05%	[18],[19],[20]		11.05%	[18],[19],[20]		11.85%	[23],[25],[30]
Spread		6.50%	[18],[19],[20],[21]		6.50%	[18],[19],[20],[21]		7.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 7,035
Ending balance	[5],[18],[19],[20]	$ 7,240			$ 7,240
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate		13.05%	[18],[19],[20]		13.05%	[18],[19],[20]		13.85%	[23],[25],[30]
Spread		8.50%	[18],[19],[20],[21]		8.50%	[18],[19],[20],[21]		9.00%	[23],[25],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 7,035
Ending balance	[5],[18],[19],[20]	$ 7,240			7,240
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					308		88
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					3,845	[2],[9],[24]	3,845
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 3,845	[5],[10],[26]	$ 3,845	$ 3,845	[5],[10],[26]	$ 3,845
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.00%	[10]	13.00%	11.00%	[10]	13.00%	13.00%	[9]
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					862		1,182
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					10,702	[2],[9]	12,028
Gross Additions					20		21
Gross Reductions					878		479
Ending balance		$ 9,844	[5],[10]	$ 11,570	$ 9,844	[5],[10]	11,570
Investment, Identifier [Axis]: Xenon Arc, Inc. Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.85%			9.85%
Spread	[18],[19],[20],[21]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 23,632			$ 23,632
Investment, Identifier [Axis]: Xenon Arc, Inc. Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.18%			10.18%
Spread	[18],[19],[20],[21]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 37,152			$ 37,152
Investment, Identifier [Axis]: Xenon Arc, Inc. Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	9.85%			9.85%
Spread	[18],[19],[20],[21]	5.75%			5.75%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 10,578			$ 10,578
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							9.70%
Spread	[23],[25],[30],[31]							5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				23,814
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							9.98%
Spread	[23],[25],[30],[31]							5.25%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 37,442
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.92%	[12],[19],[20]		11.92%	[12],[19],[20]		12.25%	[11],[25],[30],[53]
Spread		7.50%	[12],[19],[20],[21]		7.50%	[12],[19],[20],[21]		7.50%	[11],[25],[30],[31],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[11],[25],[30],[53]				$ 9,949
Ending balance	[5],[12],[19],[20]	$ 8,899			$ 8,899
Investment, Identifier [Axis]: ZRG Partners, LLC Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	12.50%			12.50%
Spread	[18],[19],[20],[21]	5.00%			5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 5,211			$ 5,211
Investment, Identifier [Axis]: ZRG Partners, LLC Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20],[52]	10.31%			10.31%
Spread	[18],[19],[20],[21],[52]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20],[52]	$ 11,810			$ 11,810
Investment, Identifier [Axis]: ZRG Partners, LLC Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.17%			10.17%
Spread	[18],[19],[20],[21]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 6,518			$ 6,518
Investment, Identifier [Axis]: ZRG Partners, LLC Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[18],[19],[20]	10.14%			10.14%
Spread	[18],[19],[20],[21]	6.00%			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[5],[18],[19],[20]	$ 46,651			$ 46,651
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							12.50%
Spread	[23],[25],[30],[31]							5.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				695
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.74%
Spread	[23],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				4,158
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.28%
Spread	[23],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				6,568
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							10.66%
Spread	[23],[25],[30],[31]							6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				47,050
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					(190)		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					320	[2],[7]	0
Gross Additions					0		0
Gross Reductions					190		0
Ending balance		$ 130	[5],[8]	$ 0	130	[5],[8]	$ 0
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]							12.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[7]				$ 1,750
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	12.00%	12.00%	[8]	12.00%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					3		41
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0		450
Gross Additions					150		0
Gross Reductions					0		0
Ending balance		$ 150	[5],[8]	$ 450	$ 150	[5],[8]	$ 450
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%	[8]	6.50%	12.00%	[8]	6.50%
Amount of Realized Gain/(Loss)					$ 0		$ 0
Amount of Unrealized Gain/(Loss)					(63)		0
Amount of Interest, Fees or Dividends Credited to Income					160		49
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					1,750		945
Gross Additions					0		0
Gross Reductions					64		0
Ending balance		$ 1,686	[5],[8]	$ 945	1,686	[5],[8]	$ 945
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate				14.00%			14.00%
Amount of Realized Gain/(Loss)							$ 0
Amount of Unrealized Gain/(Loss)							(1,109)
Amount of Interest, Fees or Dividends Credited to Income							293
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance							2,080
Gross Additions							0
Gross Reductions							1,110
Ending balance				$ 970			970
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Warrants
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)					0		0
Amount of Unrealized Gain/(Loss)					0		0
Amount of Interest, Fees or Dividends Credited to Income					0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance					0	[2],[7],[16]	0
Gross Additions					0		0
Gross Reductions					0		0
Ending balance		$ 0	[5],[8],[17]	$ 0	0	[5],[8],[17]	$ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.91%
Spread	[23],[25],[30],[31]							7.25%
PIK Rate	[14],[23],[25],[30]							11.91%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				14,852
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[23],[25],[30]							11.91%
Spread	[23],[25],[30],[31]							7.25%
PIK Rate	[14],[23],[25],[30]							11.91%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[2],[23],[25],[30]				$ 3,723
[1] All portfolio company headquarters are based in the United States, unless otherwise noted. [2] Investment Fair Value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. [3] All investments are LMM portfolio investments, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of LMM portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Corporate Facility or SPV Facility or in support of the debentures guaranteed by the SBA and issued by the Funds. [4] All portfolio company headquarters are based in the United States, unless otherwise noted. [5] Investment Fair Value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments —Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par. [6] All investments are LMM (as defined below) portfolio investments, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of LMM portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Corporate Facility or SPV Facility (each as defined below) or in support of the debentures guaranteed by the SBA (as defined below) and issued by the Funds (as defined below). [7] “Control” investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. [8] “Control” investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained. [9] “Affiliate” investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. [10] “Affiliate” investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments. [11] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. [12] Middle Market (as defined below) portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments. [13] Investments may have a portion, or all, of their income received from Paid-in-Kind (“PIK”) interest or dividends. PIK interest income and cumulative dividend income represent income not paid currently in cash. The difference between the Total Rate and PIK Rate represents the cash rate as of September 30, 2025. [14] Investments may have a portion, or all, of their income received from PIK interest or dividends. PIK interest income and cumulative dividend income represent income not paid currently in cash. The difference between the Total Rate and PIK Rate represents the cash rate as of December 31, 2024. [15] Non-accrual and non-income producing debt investment. [16] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [17] (27)Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit. [18] Private Loan (as defined below) portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. [19] “Non-Control/Non-Affiliate” investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. [20] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of the loans (based on the par amount) contain Term Secured Overnight Financing Rate (“SOFR”) floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.30%. [21] A majority of the variable rate loans in the Investment Portfolio (as defined below) bear interest at a rate that may be determined by reference to either SOFR (“SF”) or an alternate base rate (commonly based on the federal funds rate or the prime rate (“P”)), which typically resets every one, three, or six months at the borrower’s option. SOFR based contracts may include a credit spread adjustment (the “Adjustment”) that is charged in addition to the stated spread. The Adjustment is applied when the SOFR, plus the Adjustment, exceeds the stated floor rate, as applicable. As of September 30, 2025, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%. [22] The position is unfunded and no interest income is being earned as of September 30, 2025. The position may earn a nominal unused facility fee on committed amounts. [23] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments. [24] Income producing through dividends or distributions. [25] “Non-Control/Non-Affiliate” investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments. [26] Income producing through dividends or distributions. [27] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [28] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable. [29] Revolving line of credit facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2025. [30] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 95% of the loans (based on the par amount) contain Term SOFR floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.32%. [31] A majority of the variable rate loans in the Investment Portfolio bear interest at a rate that may be determined by reference to either SOFR (“SF”) or an alternate base rate (commonly based on the federal funds rate or the prime rate (“P”)), which typically resets every one, three, or six months at the borrower’s option. SOFR based contracts may include a credit spread adjustment (the “Adjustment”) that is charged in addition to the stated spread. The Adjustment is applied when the SOFR, plus the Adjustment, exceeds the stated floor rate, as applicable. As of December 31, 2024, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%. [32] Non-accrual and non-income producing debt investment. [33] The position is unfunded and no interest income is being earned as of December 31, 2024. The position may earn a nominal unused facility fee on committed amounts. [34] (33)Index based floating interest rate is subject to contractual maximum base rate of 3.00%. [35] Index based floating interest rate is subject to contractual maximum base rate of 3.00%. [36] Revolving line of credit facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2024. [37] (29)Shares/Units represent ownership in a related real estate or holding entity. [38] Shares/Units represent ownership in a related real estate or holding entity. [39] Investment purchased through a distressed sale with the intention to be sold on a short-term basis. [40] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR+6.50% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. [41] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of SOFR+7.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. [42] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. [43] Portfolio company headquarters are located outside of the United States. [44] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. [45] Portfolio company headquarters are located outside of the United States. [46] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [47] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. [48] (30)Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated. [49] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments. [50] (34)Index based floating interest rate is subject to contractual maximum base rate of 4.00%. [51] Index based floating interest rate is subject to contractual maximum base rate of 1.50%. [52] Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2025. [53] Each new draw or funding on the facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2024. [54] Investment is accruing income at the fixed cash rate of 2.50% as of September 30, 2025. [55] External Investment Manager. Investment is not encumbered as security for the Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds. [56] External Investment Manager (as defined below). Investment is not encumbered as security for the Credit Facilities (as defined below) or in support of the SBA-guaranteed debentures issued by the Funds. [57] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.85% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate. [58] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.