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

v3.24.0.1

Consolidated Schedule of Investments In and Advances to Affiliates (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		$ (120,507)		$ (5,212)		$ 45,336
Amount of Unrealized Gain/(Loss)		232,577		24,816		135,624
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[1]	4,102,177
Ending balance		4,286,271	[2]	4,102,177	[1]
Control investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(50,532)		(5,822)		6,494
Amount of Unrealized Gain/(Loss)		161,793		56,682		99,420
Amount of Interest, Fees or Dividends Credited to Income		197,150		155,967
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,703,172	[1],[3]	1,489,257
Gross Additions		568,452		488,176
Gross Reductions		244,262		268,138
Ending balance		2,006,698	[2],[4]	1,703,172	[1],[3]	1,489,257
Affiliate investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(18,729)		(3,319)		17,181
Amount of Unrealized Gain/(Loss)		33,689		10,314		21,989
Amount of Interest, Fees or Dividends Credited to Income		69,829		54,963
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		618,359	[1],[5]	549,214
Gross Additions		246,241		157,996
Gross Reductions		270,262		104,813
Ending balance		615,002	[2],[6]	618,359	[1],[5]	549,214
Investment, Identifier [Axis]: 2717 MH, L.P., (2717 MH,L.P.)
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		2,222
Amount of Unrealized Gain/(Loss)		(952)
Amount of Interest, Fees or Dividends Credited to Income		142
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,552
Gross Additions		2,796
Gross Reductions		4,298
Ending balance		6,050		7,552
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)		67		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		248		0
Gross Additions		67		248
Gross Reductions		0		0
Ending balance		315		248		0
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)
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				0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,552		3,971
Gross Additions				3,581
Gross Reductions				0
Ending balance				7,552		3,971
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, 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		0
Gross Additions		996
Gross Reductions		0
Ending balance		996		0
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		(2,079)
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	[7]	2,079
Gross Additions		0		0
Gross Reductions		0		2,079
Ending balance		0	[8]	$ 0	[7]	2,079
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7]			18.00%
PIK Rate	[7]			18.00%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				178
Amount of Interest, Fees or Dividends Credited to Income				2,032
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 11,550	[7]	9,794
Gross Additions				1,756
Gross Reductions				0
Ending balance				11,550	[7]	9,794
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8]	18.00%
PIK Rate	[8]	18.00%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(1)
Amount of Interest, Fees or Dividends Credited to Income		65
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		418
Gross Reductions		0
Ending balance		$ 418	[8]	0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[8]	18.00%
PIK Rate	[8]	18.00%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(37)
Amount of Interest, Fees or Dividends Credited to Income		2,382
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		11,550
Gross Additions		2,382
Gross Reductions		37
Ending balance		13,895	[8]	11,550
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		(1,940)
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	[7],[9]	1,940
Gross Additions		0		0
Gross Reductions		0		1,940
Ending balance		$ 0	[8],[10]	$ 0	[7],[9]	1,940
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.00%	[11],[12],[13]	6.00%	[14],[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	$ (39)
Ending balance		$ 0	[11],[12],[13]	$ (39)	[14],[15],[16],[17]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[13]	10.20%	[14],[15],[17]
Spread		6.00%	[11],[13]	6.00%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 741
Ending balance		$ 1,921	[11],[13]	$ 741	[14],[15],[17]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.43%	[11],[13]	10.58%	[14],[15],[17]
Spread		6.00%	[11],[13]	6.00%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 17,052
Ending balance		$ 19,817	[11],[13]	$ 17,052	[14],[15],[17]
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	11.43%
Spread	[11],[13]	6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,372
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate		11.22%	[8],[13]	10.14%	[7],[17]
Spread		5.75%	[8],[13]	5.75%	[7],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[17]	$ 18,969
Ending balance		10,860	[8],[13]	$ 18,969	[7],[17]
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		7,200		0
Amount of Unrealized Gain/(Loss)		(8,200)		1,660
Amount of Interest, Fees or Dividends Credited to Income		0		200
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		9,400	[18]	7,740
Gross Additions		7,200		1,660
Gross Reductions		16,600		0
Ending balance		0		9,400	[18]	7,740
Investment, Identifier [Axis]: AFG Capital Group, LLC, 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				2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		144
Gross Additions				0
Gross Reductions				144
Ending balance				0		144
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	1,779
Ending balance		$ 2,120	[11],[19]	$ 1,779	[15]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.40%	[11],[12],[13]	7.40%	[14],[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	$ (137)
Ending balance		$ (108)	[11],[12],[13]	$ (137)	[14],[15],[16],[17]
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[11],[13]	11.72%	[14],[15],[17]
Spread		7.40%	[11],[13]	7.40%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 37,463
Ending balance		28,422	[11],[13]	$ 37,463	[14],[15],[17]
Investment, Identifier [Axis]: ASC Interests, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
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		800		720
Gross Additions				80
Gross Reductions				0
Ending balance		100		800		720
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		88
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		266
Gross Reductions		0
Ending balance		$ 266		$ 0
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%		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		54		36
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		400		200
Gross Additions		0		230
Gross Reductions		0		30
Ending balance		$ 400		$ 400		200
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%		13.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(52)		0
Amount of Interest, Fees or Dividends Credited to Income		218		266
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,649		1,636
Gross Additions		1		13
Gross Reductions		53		0
Ending balance		1,597		1,649		1,636
Investment, Identifier [Axis]: ASC Interests, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		(700)
Amount of Interest, Fees or Dividends Credited to Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		800
Gross Additions		0
Gross Reductions		700
Ending balance		100		800
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	660
Ending balance		$ 670	[11]	$ 660	[15]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.16%
Spread		6.50%	[11],[13]	5.50%	[14],[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	$ 0
Ending balance		$ 360	[11],[13]	$ 0	[14],[15],[16],[17]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.16%	[11],[13]	9.32%	[14],[15],[17]
Spread		5.50%	[11],[13]	5.50%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 6,582
Ending balance		$ 6,660	[11],[13]	$ 6,582	[14],[15],[17]
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		13.16%	[11],[13]	11.32%	[14],[15],[17]
Spread		7.50%	[11],[13]	7.50%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 6,593
Ending balance		6,660	[11],[13]	$ 6,593	[14],[15],[17]
Investment, Identifier [Axis]: ATS Workholding, 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		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[15],[20]	0
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 0	[11]	$ 0	[15],[20]	0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		5.00%	[11],[21]	5.00%	[15],[20]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(486)		(620)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		634	[15],[20]	1,088
Gross Additions		180		188
Gross Reductions		486		642
Ending balance		$ 328	[11],[21]	$ 634	[15],[20]	1,088
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		5.00%	[11],[21]	5.00%	[15],[20]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(518)		(869)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,005	[15],[20]	1,917
Gross Additions		0		0
Gross Reductions		532		912
Ending balance		473	[11],[21]	1,005	[15],[20]	1,917
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		3,248		0
Amount of Unrealized Gain/(Loss)		(3,270)		3,270
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,270	[7]	0
Gross Additions		3,248		3,270
Gross Reductions		6,518		0
Ending balance		$ 0		$ 3,270	[7]	0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[17]			12.23%
Spread		7.50%		7.50%	[7],[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(134)		134
Amount of Interest, Fees or Dividends Credited to Income		886		758
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		6,343	[7],[17]	7,092
Gross Additions		575		362
Gross Reductions		6,918		1,111
Ending balance		$ 0		$ 6,343	[7],[17]	7,092
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%	[7]
PIK Rate	[7]			10.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(306)		306
Amount of Interest, Fees or Dividends Credited to Income		1,160		329
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,598	[7]	1,963
Gross Additions		1,160		635
Gross Reductions		3,758		0
Ending balance		0		2,598	[7]	1,963
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	406
Ending balance		$ 892	[11],[19]	$ 406	[15]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[13]	7.25%	[14],[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	$ (57)
Ending balance		$ (38)	[11],[12],[13]	$ (57)	[14],[15],[16],[17]
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.76%	[11],[13]	12.17%	[14],[15],[17]
Spread		7.25%	[11],[13]	7.25%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 27,927
Ending balance		24,080	[11],[13]	$ 27,927	[14],[15],[17]
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15],[17]			13.23%
Spread	[15],[17]			8.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	1,678
Ending balance	[15],[17]			$ 1,678
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15],[17]			13.23%
Spread	[15],[17]			8.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	9,891
Ending balance	[15],[17]			$ 9,891
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[15],[17]			16.17%
Spread	[15],[17]			12.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 807
Ending balance	[15],[17]			$ 807
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[15],[17]			13.88%
Spread		7.50%	[11],[12],[13]	9.50%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 14,618
Ending balance		$ (2)	[11],[12],[13]	$ 14,618	[15],[17]
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.98%	[11],[13]	13.57%	[15],[17]
Spread		7.50%	[11],[13]	9.00%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 4,368
Ending balance		24,796	[11],[13]	$ 4,368	[15],[17]
Investment, Identifier [Axis]: Acumera, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[22]	$ 110
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.00%	[11],[13],[23]	10.00%	[15],[17],[24]
Spread		7.00%	[11],[13],[23]	6.00%	[15],[17],[24]
PIK Rate	[11],[13],[23]	1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[24]	$ 4,729
Ending balance		$ 7,684	[11],[13],[23]	$ 4,729	[15],[17],[24]
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.00%	[11],[13],[23]	10.00%	[15],[17],[24]
Spread		7.00%	[11],[13],[23]	7.50%	[15],[17],[24]
PIK Rate	[11],[13],[23]	1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[24]	$ 24,086
Ending balance		$ 20,784	[11],[13],[23]	$ 24,086	[15],[17],[24]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		5.00%	[11],[12],[13]	6.00%	[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[16],[17]	$ (10)
Ending balance		$ (8)	[11],[12],[13]	$ (10)	[15],[16],[17]
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%	[11],[13]	11.12%	[15],[17]
Spread		5.00%	[11],[13]	6.00%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 6,617
Ending balance		$ 6,550	[11],[13]	$ 6,617	[15],[17]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.29%	[11],[13]	10.46%	[14],[15],[17]
Spread		9.75%	[11],[13]	6.75%	[14],[15],[17]
PIK Rate	[11],[13]	15.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 14,606
Ending balance		$ 5,495	[11],[13]	$ 14,606	[14],[15],[17]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.29%	[11],[13]	12.46%	[14],[15],[17]
Spread		9.75%	[11],[13]	8.75%	[14],[15],[17]
PIK Rate	[11],[13]	15.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 14,654
Ending balance		$ 8,922	[11],[13]	$ 14,654	[14],[15],[17]
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13],[21]	17.29%
Spread	[11],[13],[21]	11.75%
PIK Rate	[11],[13],[21]	17.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[21]	$ 3,369
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13],[21]	17.29%
Spread	[11],[13],[21]	11.75%
PIK Rate	[11],[13],[21]	17.29%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[21]	$ 5,482
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[7],[20]			7.50%
Spread	[7],[20]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[20]	168
Ending balance		134	[8],[21],[25]	$ 168	[7],[20]
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[7],[17],[20]			7.50%
Spread	[7],[17],[20]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[17],[20]	808
Ending balance		647	[8],[21],[25]	$ 808	[7],[17],[20]
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		106
Amount of Unrealized Gain/(Loss)		(1,308)
Amount of Interest, Fees or Dividends Credited to Income		(1,469)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(625)
Gross Additions		1,454
Gross Reductions		21,493
Ending balance		0		(625)
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				(3,538)
Amount of Interest, Fees or Dividends Credited to Income				(1,491)
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		(15,962)
Gross Additions				10,853
Gross Reductions				10,853
Ending balance				0		(15,962)
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0
Amount of Unrealized Gain/(Loss)		1,308
Amount of Interest, Fees or Dividends Credited to Income		1,469
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		625
Gross Additions		21,493
Gross Reductions		1,454
Ending balance		0		625
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)				0
Amount of Unrealized Gain/(Loss)				3,677
Amount of Interest, Fees or Dividends Credited to Income				1,491
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		6,123
Gross Additions				0
Gross Reductions				0
Ending balance				0		6,123
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,504
Ending balance		$ 4,860		$ 3,504
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Total Rate		14.13%		14.13%
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
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate		14.13%		14.13%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 0
Ending balance		0		$ 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		1,356		(1,390)
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,504		4,894
Gross Additions		1,356		0
Gross Reductions		0		1,390
Ending balance		$ 4,860		$ 3,504		4,894
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	15.38%
Spread		10.00%	[13]	10.00%	[16],[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		13		6
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(3)	[16],[17]	(4)
Gross Additions		222		1
Gross Reductions		0		0
Ending balance		$ 219	[13]	$ (3)	[16],[17]	(4)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	14.13%	[17]
Spread		10.00%	[13]	10.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		748		690
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,545	[17]	4,740
Gross Additions		78		85
Gross Reductions		539		280
Ending balance		4,084	[13]	4,545	[17]	4,740
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	[9]	0
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		0	[10]	0	[9]	0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	0
Ending balance		0	[11]	$ 0	[15]
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	14,060
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11]	$ 0
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.00%	[11]	13.41%	[15],[17]
Spread	[15],[17]			9.00%
PIK Rate	[11]	15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 3,945
Ending balance		$ 1,907	[11]	$ 3,945	[15],[17]
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.04%	[11],[13]	13.56%	[15],[17]
Spread		6.50%	[11],[13]	9.00%	[15],[17]
PIK Rate	[11],[13]	12.04%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 25,065
Ending balance		7,149	[11],[13]	$ 25,065	[15],[17]
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	1,388
Ending balance		2,230	[11]	$ 1,388	[15]
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[14],[15],[16],[17]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	(135)
Ending balance	[14],[15],[16],[17]			$ (135)
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[14],[15],[17]			10.92%
Spread	[14],[15],[17]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	66,511
Ending balance	[14],[15],[17]			$ 66,511
Investment, Identifier [Axis]: Arrow International, Inc, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[14],[15],[17],[26]			10.36%
Spread	[14],[15],[17],[26]			6.60%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17],[26]	36,000
Ending balance	[14],[15],[17],[26]			$ 36,000
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		(800)		0
Amount of Unrealized Gain/(Loss)		800		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		800		0
Gross Reductions		800		0
Ending balance		$ 0		$ 0		0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)
Schedule of Investments [Line Items]
Total Rate				15.00%
PIK Rate		15.00%
Amount of Realized Gain/(Loss)		$ (162)		$ 0
Amount of Unrealized Gain/(Loss)		162		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		162		0
Gross Reductions		162		0
Ending balance		$ 0		$ 0		0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1
Schedule of Investments [Line Items]
Total Rate	[17],[27]			15.12%
Spread		11.00%		11.00%	[17],[27]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		102		105
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		800	[17],[27]	800
Gross Additions		0		0
Gross Reductions		800		0
Ending balance		$ 0		$ 800	[17],[27]	800
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2
Schedule of Investments [Line Items]
Total Rate	[17],[27]			15.12%
Spread		11.00%		11.00%	[17],[27]
Amount of Realized Gain/(Loss)		$ (1,400)		$ 0
Amount of Unrealized Gain/(Loss)		1,914		379
Amount of Interest, Fees or Dividends Credited to Income		539		527
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,086	[17],[27]	1,707
Gross Additions		1,914		379
Gross Reductions		4,000		0
Ending balance		0		2,086	[17],[27]	1,707
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)		820		1,390
Amount of Interest, Fees or Dividends Credited to Income		1		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,320	[15]	1,930
Gross Additions		820		1,390
Gross Reductions		0		0
Ending balance		$ 4,140	[11]	$ 3,320	[15]	1,930
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		7.00%	[11]	7.00%	[15]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		50		51
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		711	[15]	710
Gross Additions		0		1
Gross Reductions		0		0
Ending balance		711	[11]	711	[15]	710
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)		2,055		0
Amount of Interest, Fees or Dividends Credited to Income		686		631
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,095	[18]	0
Gross Additions		2,055		4,095
Gross Reductions		0		0
Ending balance		$ 6,150	[19]	4,095	[18]	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		10.00%
Amount of Realized Gain/(Loss)		$ 0		0
Amount of Unrealized Gain/(Loss)		6		0
Amount of Interest, Fees or Dividends Credited to Income		2		5
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(8)	[16]	0
Gross Additions		8		451
Gross Reductions		0		459
Ending balance		$ 0	[12]	(8)	[16]	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		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		22		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[16]	0
Gross Additions		630		0
Gross Reductions		360		0
Ending balance		$ 270		$ 0	[16]	0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		10.00%		11.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		67		0
Amount of Interest, Fees or Dividends Credited to Income		1,134		1,139
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		10,933		0
Gross Additions		92		10,933
Gross Reductions		450		0
Ending balance		10,575		$ 10,933		0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1
Schedule of Investments [Line Items]
PIK Rate	[15],[16],[18],[28]			16.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[16],[18],[28]	270
Ending balance		200	[11],[29]	$ 270	[15],[16],[18],[28]
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2
Schedule of Investments [Line Items]
Total Rate	[15],[18],[28]			8.00%
PIK Rate	[15],[18],[28]			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[18],[28]	4,561
Ending balance		2,560	[11],[19],[29]	$ 4,561	[15],[18],[28]
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15]			12.00%
PIK Rate	[15]			1.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 195
Ending balance	[15]			$ 195
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		7.25%	[11],[12],[13]	1.00%	[14],[15],[16],[17]
PIK Rate	[14],[15],[16],[17]			6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	$ (76)
Ending balance		$ (62)	[11],[12],[13]	$ (76)	[14],[15],[16],[17]
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.64%	[11],[13]	11.40%	[14],[15],[17]
Spread		7.25%	[11],[13]	1.00%	[14],[15],[17]
PIK Rate		6.25%	[11],[13]	6.00%	[14],[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	$ 27,505
Ending balance		27,550	[11],[13]	$ 27,505	[14],[15],[17]
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	420
Ending balance		120	[11]	420	[15]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[18]	4,860
Ending balance		$ 550	[8]	$ 4,860	[7],[18]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[8],[13]	16.00%
Spread		7.50%	[8],[13]	8.50%	[7],[16],[17]
PIK Rate	[8],[13]	15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[16],[17]	$ 0
Ending balance		$ 1,767	[8],[13]	$ 0	[7],[16],[17]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.96%	[8],[13]	12.94%	[7],[17]
Spread		8.50%	[8],[13]	8.50%	[7],[17]
PIK Rate	[8],[13]	12.96%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[17]	$ 3,139
Ending balance		3,446	[8],[13]	$ 3,139	[7],[17]
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[9]	1,095
Ending balance		120	[8],[10]	1,095	[7],[9]
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)		(980)		(1,860)
Amount of Interest, Fees or Dividends Credited to Income		122		66
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,970	[18]	4,830
Gross Additions		0		0
Gross Reductions		980		1,860
Ending balance		$ 1,990		$ 2,970	[18]	4,830
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt
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		32		32
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		320		320
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		320		320		320
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class A Preferred 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				2,466
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 0		10,194
Gross Additions				0
Gross Reductions				10,194
Ending balance				$ 0		10,194
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%	[19]	8.00%	[18]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(400)		8,250
Amount of Interest, Fees or Dividends Credited to Income		4,065		1,210
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		31,420	[18]	23,170
Gross Additions		0		8,250
Gross Reductions		400		0
Ending balance		$ 31,020	[19]	$ 31,420	[18]	23,170
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		14.48%	[13],[30]	13.39%	[14],[17],[31]
Spread		9.11%	[13],[30]	9.26%	[14],[17],[31]
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(141)
Amount of Interest, Fees or Dividends Credited to Income		14,208
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[17],[31]	99,194
Gross Additions		141
Gross Reductions		2,779
Ending balance		96,556	[13],[30]	$ 99,194	[14],[17],[31]
Investment, Identifier [Axis]: Bolder Panther Group, 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				23
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0		0
Gross Additions				0
Gross Reductions				0
Ending balance				$ 0		0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate				13.39%
Spread				9.26%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				305
Amount of Interest, Fees or Dividends Credited to Income				9,164
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		99,194		39,000
Gross Additions				60,194
Gross Reductions				0
Ending balance				$ 99,194		39,000
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[32],[33]	0
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[32],[33]	$ 500
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13],[32],[33]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13],[32],[33]	$ (25)
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[11],[13],[32],[33]	11.54%
Spread	[11],[13],[32],[33]	6.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[32],[33]	$ 6,405
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13],[32],[33]	13.54%
Spread	[11],[13],[32],[33]	8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13],[32],[33]	$ 6,405
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[13],[21],[25]	12.50%	[15],[17],[20],[27]
Spread		7.25%	[11],[13],[21],[25]	9.25%	[15],[17],[20],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[20],[27]	$ 761
Ending balance		$ 761	[11],[13],[21],[25]	$ 761	[15],[17],[20],[27]
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		15.75%	[11],[13],[21],[25]	12.50%	[15],[17],[20],[27]
Spread		7.25%	[11],[13],[21],[25]	9.25%	[15],[17],[20],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[20],[27]	$ 2,916
Ending balance		1,075	[11],[13],[21],[25]	$ 2,916	[15],[17],[20],[27]
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		(1,460)		(630)
Amount of Interest, Fees or Dividends Credited to Income		120		828
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,080	[18]	7,710
Gross Additions		0		0
Gross Reductions		1,460		630
Ending balance		$ 5,620	[19]	$ 7,080	[18]	7,710
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.46%	[13]	14.12%	[17]
Spread		10.00%	[13]	10.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		899		862
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,964	[17]	8,037
Gross Additions		30		23
Gross Reductions		496		2,096
Ending balance		5,498	[13]	5,964	[17]	8,037
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		0
Amount of Interest, Fees or Dividends Credited to Income		100		100
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,000	[18],[28]	1,000
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 1,000	[19],[29]	$ 1,000	[18],[28]	1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.00%		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		1,162		1,162
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		8,813		8,813
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 8,813		$ 8,813		8,813
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%		13.00%	[28]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		132		132
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,000	[28]	1,000
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		1,000		1,000	[28]	1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[9]	4,340
Ending balance		4,290	[10]	4,340	[9]
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)		(21)		117
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,828		1,712
Gross Additions		0		116
Gross Reductions		20		0
Ending balance		1,808		1,828		1,712
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)		(29)		163
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,512		2,348
Gross Additions		0		164
Gross Reductions		30		0
Ending balance		2,482		2,512		2,348
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	[18],[34],[35],[36]	4,727
Ending balance		4,080	[32],[37],[38]	4,727	[18],[34],[35],[36]
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	[18],[34],[35],[36]	4,541
Ending balance		4,358	[19],[32],[37],[38]	4,541	[18],[34],[35],[36]
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	[34],[35],[36]	2,229
Ending balance		$ 2,448	[19],[32],[37],[38]	$ 2,229	[34],[35],[36]
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		6.00%		6.00%
PIK Rate		6.00%		6.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		0		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
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%	[25]	9.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		183		103
Amount of Interest, Fees or Dividends Credited to Income		2,188		1,894
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		12,337		14,370
Gross Additions		183		103
Gross Reductions		376		2,136
Ending balance		$ 12,144	[25]	$ 12,337		14,370
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[11],[13]	10.46%
Spread		5.00%	[11],[13]	5.00%	[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[16],[17]	$ 0
Ending balance		$ 465	[11],[13]	$ 0	[15],[16],[17]
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.46%	[11],[13]	8.91%	[15],[17]
Spread		5.00%	[11],[13]	5.00%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 19,933
Ending balance		19,681	[11],[13]	$ 19,933	[15],[17]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]	1,789
Ending balance		1,789		1,789	[18]
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Ending balance		0		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)		1,130		(1,620)
Amount of Interest, Fees or Dividends Credited to Income		2,902		3,305
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		49,002	[18]	50,620
Gross Additions		1,128		0
Gross Reductions		0		1,618
Ending balance		50,130	[19]	49,002	[18]	50,620
Investment, Identifier [Axis]: CMS Minerals Investments, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		99		0
Amount of Unrealized Gain/(Loss)		(366)		230
Amount of Interest, Fees or Dividends Credited to Income		44		198
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,670	[18],[28]	1,974
Gross Additions		99		230
Gross Reductions		1,769		534
Ending balance		$ 0		$ 1,670	[18],[28]	1,974
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (66)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Spread	[11],[12],[13]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[12],[13]	$ (66)
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.45%
Spread	[11],[13]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 10,920
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15],[17],[39]			11.99%
Spread	[15],[17],[39]			8.50%
PIK Rate	[15],[17],[39]			0.01%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[39]	28,328
Ending balance	[15],[17],[39]			$ 28,328
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		(230)		(360)
Amount of Interest, Fees or Dividends Credited to Income		149		178
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,210	[18]	2,570
Gross Additions		0		0
Gross Reductions		230		360
Ending balance		$ 1,980	[19]	$ 2,210	[18]	2,570
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1
Schedule of Investments [Line Items]
Total Rate		15.00%	[19]	15.00%	[18]
PIK Rate		15.00%	[19]	15.00%	[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]	$ 3,994
Ending balance		4,601	[19]	$ 3,994	[18]
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1.1
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		(9,800)		12,220
Amount of Interest, Fees or Dividends Credited to Income		250		250
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		25,495		13,275
Gross Additions		0		12,220
Gross Reductions		9,800		0
Ending balance		15,695		25,495		13,275
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[18]	25,495
Ending balance		$ 15,695	[19]	$ 25,495	[18]
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1
Schedule of Investments [Line Items]
Total Rate		15.00%		15.00%
PIK Rate		15.00%		15.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		607		933
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		3,994		9,510
Gross Additions		607		933
Gross Reductions		0		6,449
Ending balance		$ 4,601		$ 3,994		9,510
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.69%	[13],[19]	13.75%	[17]
Spread		10.00%	[13],[19]	10.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(359)		49
Amount of Interest, Fees or Dividends Credited to Income		4,366		3,454
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		28,000	[17]	27,915
Gross Additions		14		85
Gross Reductions		359		0
Ending balance		27,655	[13],[19]	$ 28,000	[17]	27,915
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt
Schedule of Investments [Line Items]
Total Rate	[7],[17]			10.88%
Spread	[7],[17]			6.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[7],[17]	14,685
Ending balance	[7],[17]			$ 14,685
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)		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		4,500		4,500
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 4,500		$ 4,500		4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[13]	11.38%
Spread		6.00%	[13]	6.00%	[16],[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		40		10
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		(9)	[16],[17]	0
Gross Additions		1,340		621
Gross Reductions		450		630
Ending balance		$ 881	[13]	$ (9)	[16],[17]	0
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%		12.50%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		2,612		2,607
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		20,090		20,050
Gross Additions		41		40
Gross Reductions		225		0
Ending balance		19,906		20,090		20,050
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	246
Ending balance		$ 246	[11]	$ 246	[15]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[11],[12],[13]	6.00%	[15],[16],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[16],[17]	$ (11)
Ending balance		$ (8)	[11],[12],[13]	$ (11)	[15],[16],[17]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]	10.73%	[15],[17]
Spread		6.00%	[11],[13]	6.00%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 7,914
Ending balance		$ 7,933	[11],[13]	$ 7,914	[15],[17]
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate		11.61%	[11],[13]	10.48%	[15],[17]
Spread		6.00%	[11],[13]	5.75%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 6,133
Ending balance		6,102	[11],[13]	$ 6,133	[15],[17]
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)		2,340		2,578
Amount of Interest, Fees or Dividends Credited to Income		120		120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		8,700		5,840
Gross Additions		2,340		2,860
Gross Reductions		0		0
Ending balance		$ 11,040		$ 8,700		5,840
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.00%	[12],[13]	9.00%	[16],[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		12		28
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[16],[17]	0
Gross Additions		0		1,440
Gross Reductions		0		1,440
Ending balance		$ 0	[12],[13]	$ 0	[16],[17]	0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%	[13]	13.13%	[17]
Spread		9.00%	[13]	9.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		62		507
Amount of Interest, Fees or Dividends Credited to Income		2,315		1,767
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		14,954	[17]	8,864
Gross Additions		2,620		6,476
Gross Reductions		0		386
Ending balance		17,574	[13]	14,954	[17]	8,864
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)		6,400		(1,220)
Amount of Interest, Fees or Dividends Credited to Income		4,182		1,853
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		22,920	[18]	24,140
Gross Additions		6,400		0
Gross Reductions		0		1,220
Ending balance		29,320	[19]	22,920	[18]	24,140
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)		150		719
Amount of Interest, Fees or Dividends Credited to Income		92		78
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,710	[18],[28]	1,540
Gross Additions		150		1,170
Gross Reductions		0		0
Ending balance		$ 2,860	[19],[29]	$ 2,710	[18],[28]	1,540
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		6.00%	[12],[13]	6.00%	[16],[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		195		0
Amount of Interest, Fees or Dividends Credited to Income		45		8
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[16],[17]	0
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 0	[12],[13]	$ 0	[16],[17]	0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.49%	[13]	12.13%	[17]
Spread		8.00%	[13]	8.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(7)		(68)
Amount of Interest, Fees or Dividends Credited to Income		2,203		1,845
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		16,945	[17]	17,817
Gross Additions		7		68
Gross Reductions		1,332		940
Ending balance		15,620	[13]	16,945	[17]	17,817
Investment, Identifier [Axis]: Chandler Signs Holdings, LLC, Class A Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		1,797		0
Amount of Unrealized Gain/(Loss)		(290)		1,330
Amount of Interest, Fees or Dividends Credited to Income		60		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,790	[15]	460
Gross Additions		1,797		1,330
Gross Reductions		3,587		0
Ending balance		$ 0		$ 1,790	[15]	460
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		12.60%	[11],[13],[40]	10.72%	[14],[15],[17],[41]
Spread		7.00%	[11],[13],[40]	6.25%	[14],[15],[17],[41]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17],[41]	$ 1,841
Ending balance		$ 1,988	[11],[13],[40]	$ 1,841	[14],[15],[17],[41]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.66%	[11],[13]	10.71%	[14],[15],[17],[42]
Spread		7.00%	[11],[13]	6.25%	[14],[15],[17],[42]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17],[42]	$ 38,484
Ending balance		$ 35,064	[11],[13]	$ 38,484	[14],[15],[17],[42]
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.66%
Spread	[11],[13]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 1,943
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4
Schedule of Investments [Line Items]
Total Rate	[11],[13]	12.66%
Spread	[11],[13]	7.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[11],[13]	$ 4,695
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)		2,350		(650)
Amount of Interest, Fees or Dividends Credited to Income		1,463		764
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		13,340	[18]	13,990
Gross Additions		2,350		0
Gross Reductions		0		650
Ending balance		$ 15,690	[19]	$ 13,340	[18]	13,990
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%		10.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(35)		(44)
Amount of Interest, Fees or Dividends Credited to Income		604		613
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,694		5,694
Gross Additions		35		44
Gross Reductions		35		44
Ending balance		5,694		5,694		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)		(3,020)		(2,030)
Amount of Interest, Fees or Dividends Credited to Income		275		758
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		8,220	[18]	10,250
Gross Additions		0		0
Gross Reductions		3,020		2,030
Ending balance		5,200	[19]	8,220	[18]	10,250
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)		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		610	[28]	530
Gross Additions		519		80
Gross Reductions		0		0
Ending balance		$ 1,129	[29]	$ 610	[28]	530
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.50%
Spread	[14],[16],[17]			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		2		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[14],[16],[17]	0
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 0	[12]	$ 0	[14],[16],[17]	0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		11.50%		13.23%	[14],[17]
Spread	[14],[17]			9.00%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(138)
Amount of Interest, Fees or Dividends Credited to Income		1,172
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[17]	10,440
Gross Additions		40
Gross Reductions		2,058
Ending balance		8,422		$ 10,440	[14],[17]
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate				13.23%
Spread				9.00%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				0
Amount of Interest, Fees or Dividends Credited to Income				1,255
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 10,440		10,401
Gross Additions				39
Gross Reductions				0
Ending balance				$ 10,440		10,401
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3
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		104		107
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,039		1,071
Gross Additions		1		1
Gross Reductions		36		33
Ending balance		1,004		$ 1,039		1,071
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate	[15],[20],[27]			15.00%
PIK Rate	[15],[20],[27]			15.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[20],[27]	19
Ending balance		16	[11],[21],[25]	$ 19	[15],[20],[27]
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		(8,639)		9,380
Amount of Interest, Fees or Dividends Credited to Income		5,354		1,711
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		24,637	[18]	15,260
Gross Additions		0		9,377
Gross Reductions		8,637		0
Ending balance		$ 16,000	[19]	$ 24,637	[18]	15,260
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		11.69%	[13]	9.75%	[17]
Spread		6.00%	[13]	6.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		0		0
Amount of Interest, Fees or Dividends Credited to Income		537		639
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		4,560	[17]	4,000
Gross Additions		0		11,720
Gross Reductions		0		11,160
Ending balance		$ 4,560	[13]	$ 4,560	[17]	4,000
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		8.00%		8.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(43)		(43)
Amount of Interest, Fees or Dividends Credited to Income		1,606		1,606
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		19,274		19,274
Gross Additions		43		43
Gross Reductions		43		43
Ending balance		19,274		19,274		19,274
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)		14,290		10,540
Amount of Interest, Fees or Dividends Credited to Income		4,877		4,015
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		58,180	[18],[28]	47,640
Gross Additions		14,290		10,540
Gross Reductions		0		0
Ending balance		72,470	[19],[29]	$ 58,180	[18],[28]	47,640
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[17]			15.38%
Spread	[17]			10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]	1,462
Ending balance		$ 0	[12]	$ 1,462	[17]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		11
Amount of Interest, Fees or Dividends Credited to Income		14
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]: Cody Pools, Inc., Secured Debt 1.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Spread				10.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				19
Amount of Interest, Fees or Dividends Credited to Income				119
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 1,462		(13)
Gross Additions				4,971
Gross Reductions				3,496
Ending balance				$ 1,462		(13)
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.50%		15.38%	[17]
Spread	[17]			10.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[17]	$ 40,801
Ending balance		$ 42,073		$ 40,801	[17]
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1
Schedule of Investments [Line Items]
Total Rate		12.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		31
Amount of Interest, Fees or Dividends Credited to Income		3,384
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		46,312
Gross Reductions		4,239
Ending balance		42,073		$ 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.2
Schedule of Investments [Line Items]
Total Rate				15.38%
Spread				10.50%
Amount of Realized Gain/(Loss)				$ 0
Amount of Unrealized Gain/(Loss)				(86)
Amount of Interest, Fees or Dividends Credited to Income				5,615
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		$ 40,801		42,497
Gross Additions				86
Gross Reductions				1,782
Ending balance				40,801		42,497
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3
Schedule of Investments [Line Items]
Spread		10.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(19)
Amount of Interest, Fees or Dividends Credited to Income		96
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		1,462
Gross Additions		32
Gross Reductions		1,494
Ending balance		$ 0		1,462
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4
Schedule of Investments [Line Items]
Spread		10.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		(280)
Amount of Interest, Fees or Dividends Credited to Income		2,683
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		40,801
Gross Additions		0
Gross Reductions		40,801
Ending balance		0		40,801
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)				30
Amount of Interest, Fees or Dividends Credited to Income				1,397
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		9,160	[18]	9,130
Gross Additions				30
Gross Reductions				0
Ending balance				9,160	[18]	9,130
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		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		2,400
Gross Reductions		0
Ending balance		2,400		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)		(1,480)
Amount of Interest, Fees or Dividends Credited to Income		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		9,160
Gross Additions		0
Gross Reductions		1,480
Ending balance		7,680		9,160
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		52		48
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0	[16]	0
Gross Additions		1,600		1,600
Gross Reductions		1,600		1,600
Ending balance		$ 0	[12]	$ 0	[16]	0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(319)		0
Amount of Interest, Fees or Dividends Credited to Income		1,804		2,953
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		23,151		24,351
Gross Additions		55		60
Gross Reductions		1,579		1,260
Ending balance		21,627		23,151		24,351
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)		(5,380)		7,830
Amount of Interest, Fees or Dividends Credited to Income		316		632
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		19,830	[18]	12,000
Gross Additions		0		7,830
Gross Reductions		5,380		0
Ending balance		$ 14,450	[19]	$ 19,830	[18]	12,000
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread		9.00%	[12],[13],[25]	9.00%	[16],[17],[27]
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	[16],[17],[27]	0
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 0	[12],[13],[25]	$ 0	[16],[17],[27]	0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		14.48%	[13]	13.13%	[17]
Spread		9.00%	[13]	9.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(9)		(16)
Amount of Interest, Fees or Dividends Credited to Income		668		642
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		5,241	[17]	6,477
Gross Additions		9		16
Gross Reductions		1,796		1,252
Ending balance		3,454	[13]	5,241	[17]	6,477
Investment, Identifier [Axis]: Compass Systems & Sales, 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		7,454
Gross Reductions		0
Ending balance		$ 7,454		0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.50%
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	[12]	0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.50%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		608
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		17,034
Gross Reductions		0
Ending balance		$ 17,034		$ 0
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13],[43]	12.56%	[15],[17],[44]
Spread		8.00%	[11],[13],[43]	8.00%	[15],[17],[44]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17],[44]	$ 4,621
Ending balance		$ 4,848	[11],[13],[43]	$ 4,621	[15],[17],[44]
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.52%	[11],[13]	12.56%	[15],[17]
Spread		8.00%	[11],[13]	8.00%	[15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	$ 17,178
Ending balance		17,757	[11],[13]	$ 17,178	[15],[17]
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
Amount of Unrealized Gain/(Loss)		13
Amount of Interest, Fees or Dividends Credited to Income		443
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,657
Gross Additions		13
Gross Reductions		3,318
Ending balance		4,352		7,657
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	[18],[34],[35],[36]	7,657
Ending balance		4,352	[19],[32],[37],[38]	7,657	[18],[34],[35],[36]
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
Amount of Unrealized Gain/(Loss)				(142)
Amount of Interest, Fees or Dividends Credited to Income				566
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,657		9,959
Gross Additions				0
Gross Reductions				2,302
Ending balance				7,657		9,959
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[18]	21,165
Ending balance		23,135	[11]	21,165	[15],[18]
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		38		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		588	[34],[35],[36]	710
Gross Additions		0		0
Gross Reductions		20		122
Ending balance		568	[19],[32],[37],[38]	588	[34],[35],[36]	710
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred 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		163
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		0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		10.00%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		7
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]: Cybermedia Technologies, LLC, Secured Debt 1
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance	[12]	$ 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1.1
Schedule of Investments [Line Items]
Total Rate		13.00%
Amount of Realized Gain/(Loss)		$ 0
Amount of Unrealized Gain/(Loss)		0
Amount of Interest, Fees or Dividends Credited to Income		2,989
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		0
Gross Additions		28,752
Gross Reductions		363
Ending balance		$ 28,389		0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		13.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Ending balance		$ 28,389
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity
Schedule of Investments [Line Items]
Amount of Realized Gain/(Loss)		0		0
Amount of Unrealized Gain/(Loss)		400		1,316
Amount of Interest, Fees or Dividends Credited to Income		0		0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,260		5,944
Gross Additions		400		1,316
Gross Reductions		0		0
Ending balance		$ 7,660		$ 7,260		5,944
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		12.00%		12.00%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(49)		165
Amount of Interest, Fees or Dividends Credited to Income		2,518		2,621
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		21,200		20,993
Gross Additions		49		207
Gross Reductions		2,449		0
Ending balance		$ 18,800		$ 21,200		20,993
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units
Schedule of Investments [Line Items]
Total Rate		8.00%	[11]	8.00%	[15]
PIK Rate		8.00%	[11]	8.00%	[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	$ 380
Ending balance		$ 260	[11]	$ 380	[15]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)
Schedule of Investments [Line Items]
Total Rate		10.00%	[11],[19]	10.00%	[15],[18]
PIK Rate		10.00%	[11],[19]	10.00%	[15],[18]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[18]	$ 1,161
Ending balance		1,284	[11],[19]	$ 1,161	[15],[18]
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Spread	[15],[16],[17]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[16],[17]	(1)
Ending balance	[15],[16],[17]			$ (1)
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate	[15],[17]			12.24%
Spread	[15],[17]			7.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15],[17]	5,934
Ending balance	[15],[17]			$ 5,934
Investment, Identifier [Axis]: Dalton US Inc., Common Stock
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[15]	201
Ending balance		830	[11]	$ 201	[15]
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1
Schedule of Investments [Line Items]
Total Rate	[14],[15],[17]			11.90%
Spread	[14],[15],[17]			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	1,077
Ending balance	[14],[15],[17]			$ 1,077
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2
Schedule of Investments [Line Items]
Spread	[14],[15],[16],[17]			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[16],[17]	(74)
Ending balance	[14],[15],[16],[17]			$ (74)
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3
Schedule of Investments [Line Items]
Total Rate	[14],[15],[17]			12.56%
Spread	[14],[15],[17]			8.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance	[14],[15],[17]	14,186
Ending balance	[14],[15],[17]			$ 14,186
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)		(2,600)		60
Amount of Interest, Fees or Dividends Credited to Income		(96)		96
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		2,670	[18]	2,610
Gross Additions		0		60
Gross Reductions		2,600		0
Ending balance		$ 70		$ 2,670	[18]	2,610
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1
Schedule of Investments [Line Items]
Total Rate		7.50%		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		40		4
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		223		0
Gross Additions		809		223
Gross Reductions		585		0
Ending balance		$ 447		$ 223		0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2
Schedule of Investments [Line Items]
Total Rate		10.00%		7.50%
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(85)		228
Amount of Interest, Fees or Dividends Credited to Income		1,012		829
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		7,789		7,668
Gross Additions		153		391
Gross Reductions		355		270
Ending balance		7,587		7,789		7,668
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		200		200
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		9,835	[18]	9,835
Gross Additions		0		0
Gross Reductions		0		0
Ending balance		$ 9,835	[19]	$ 9,835	[18]	9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt
Schedule of Investments [Line Items]
Total Rate		15.38%	[13]	14.13%	[17]
Spread		10.00%	[13]	10.00%	[17]
Amount of Realized Gain/(Loss)		$ 0		$ 0
Amount of Unrealized Gain/(Loss)		(67)		0
Amount of Interest, Fees or Dividends Credited to Income		2,332		1,991
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]
Beginning balance		15,523	[17]	16,801
Gross Additions		0		43
Gross Reductions		833