Annual report [Section 13 and 15(d), not S-K Item 405]

Consolidated Schedule of Investments

v3.25.4
Consolidated Schedule of Investments - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Schedule of Investments [Line Items]      
Cost $ 4,724,528 [1],[2],[3] $ 4,237,312 [4],[5],[6]  
Fair value $ 5,518,117 [1],[2],[7] $ 4,932,669 [4],[5],[8]  
Investment owned, percent of net assets (as a percent) 184.30% [1],[2] 176.30% [4],[5]  
Cash and cash equivalents $ 41,959 $ 78,251  
Money Market Funds      
Schedule of Investments [Line Items]      
Cash and cash equivalents 3,248 [3] 6,474 [6]  
Cash and cash equivalents, fair value 3,248 [7] 6,474 [8]  
American Nuts, LLC      
Schedule of Investments [Line Items]      
Cost 25,292 [3],[9] 34,480 [6],[10]  
Fair value 18,993 [7],[9] 24,922 [8],[10]  
Analytical Systems Keco Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 9,763 [3] 9,991 [6]  
Fair value 10,010 [7] 9,348 [8]  
ASC Interests, LLC      
Schedule of Investments [Line Items]      
Cost 3,611 [3] 3,728 [6]  
Fair value 1,902 [7] 1,998 [8]  
Batjer TopCo, LLC      
Schedule of Investments [Line Items]      
Cost 14,014 [3] 15,340 [6]  
Fair value 18,695 [7] 16,405 [8]  
BDB Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 21,310    
Fair value [7] 14,413    
Bettercloud, Inc.,      
Schedule of Investments [Line Items]      
Cost [3],[9] 22,907    
Fair value [7],[9] 21,707    
Bolder Panther Group, LLC      
Schedule of Investments [Line Items]      
Cost 114,803 [3] 115,263 [6]  
Fair value 132,236 [7] 132,163 [8]  
Brewer Crane Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 9,632 [3] 9,296 [6]  
Fair value 8,812 [7] 9,696 [8]  
Bridge Capital Solutions Corporation      
Schedule of Investments [Line Items]      
Cost 3,132 [3] 3,132 [6]  
Fair value 0 [7] 0 [8]  
California Splendor Holdings LLC      
Schedule of Investments [Line Items]      
Cost 54,736 [3] 57,670 [6]  
Fair value 50,997 [7] 63,095 [8]  
Centre Technologies Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 30,444 [3] 31,878 [6]  
Fair value 66,795 [7] 37,944 [8]  
Chamberlin Holding LLC      
Schedule of Investments [Line Items]      
Cost 54,955 [3] 28,727 [6]  
Fair value 81,720 [7] 52,280 [8]  
Charps, LLC      
Schedule of Investments [Line Items]      
Cost 7,230 [3] 7,129 [6]  
Fair value 21,714 [7] 21,274 [8]  
Clad-Rex Steel, LLC      
Schedule of Investments [Line Items]      
Cost 18,116 [3] 15,478 [6]  
Fair value 25,799 [7] 19,673 [8]  
Cody Pools, Inc.      
Schedule of Investments [Line Items]      
Cost 42,571 [3] 47,512 [6]  
Fair value 99,961 [7] 107,037 [8]  
Colonial Electric Company LLC      
Schedule of Investments [Line Items]      
Cost 16,453 [3] 21,952 [6]  
Fair value 25,609 [7] 27,880 [8]  
CompareNetworks Topco, LLC      
Schedule of Investments [Line Items]      
Cost 7,551 [3] 6,423 [6]  
Fair value 11,681 [7] 14,163 [8]  
Compass Systems & Sales, LLC      
Schedule of Investments [Line Items]      
Cost 24,539 [3] 24,500 [6]  
Fair value 24,126 [7] 24,496 [8]  
Cybermedia Technologies, LLC      
Schedule of Investments [Line Items]      
Cost 44,482 [3] 42,116 [6]  
Fair value 33,416 [7] 42,116 [8]  
Datacom, LLC      
Schedule of Investments [Line Items]      
Cost 11,457 [3] 11,050 [6]  
Fair value 4,844 [7] 8,680 [8]  
Digital Products Holdings LLC      
Schedule of Investments [Line Items]      
Cost 21,444 [3] 22,062 [6]  
Fair value 21,173 [7] 22,257 [8]  
Direct Marketing Solutions, Inc.      
Schedule of Investments [Line Items]      
Cost 33,262 [3] 32,228 [6]  
Fair value 44,627 [7] 41,832 [8]  
Doral Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 39,270    
Fair value [7] 42,010    
Elgin AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost 30,156 [3] 31,455 [6]  
Fair value 31,192 [7] 32,951 [8]  
Flame King Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 75,815    
Fair value [7] 120,630    
Gamber-Johnson Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 88,524 [3] 90,678 [6]  
Fair value 184,732 [7] 187,876 [8]  
GRT Rubber Technologies LLC      
Schedule of Investments [Line Items]      
Cost 56,660 [3] 56,611 [6]  
Fair value 89,999 [7] 89,529 [8]  
Harris Preston Fund Investments      
Schedule of Investments [Line Items]      
Cost 4,755 [3],[11],[12] 6,942 [6],[13],[14]  
Fair value 7,927 [7],[11],[12] 13,829 [8],[13],[14]  
IG Investor, LLC      
Schedule of Investments [Line Items]      
Cost 50,870 [3] 51,229 [6]  
Fair value 64,694 [7] 53,059 [8]  
Jensen Jewelers of Idaho, LLC      
Schedule of Investments [Line Items]      
Cost 1,689 [3] 2,309 [6]  
Fair value 12,418 [7] 13,318 [8]  
JorVet Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 34,256 [3] 34,209 [6]  
Fair value 34,253 [7] 36,396 [8]  
Joerns Healthcare, LLC      
Schedule of Investments [Line Items]      
Cost 51,560 [3],[9] 48,787 [6],[10]  
Fair value 43,684 [7],[9] 45,332 [8],[10]  
KBK Industries, LLC      
Schedule of Investments [Line Items]      
Cost 7,949 [3] 4,459 [6]  
Fair value 25,380 [7] 28,880 [8]  
Kickhaefer Manufacturing Company, LLC      
Schedule of Investments [Line Items]      
Cost 27,305 [3] 32,145 [6]  
Fair value 35,443 [7] 33,863 [8]  
Legacy Swim Group      
Schedule of Investments [Line Items]      
Cost [3] 46,687    
Fair value [7] 46,687    
Metalforming Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 24,628 [3] 28,286 [6]  
Fair value 32,923 [7] 34,080 [8]  
Moffitt Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 48,140    
Fair value [7] 49,400    
MS Private Loan Fund I, LP      
Schedule of Investments [Line Items]      
Cost 27,000 [3],[11],[12] 15,850 [6],[13],[14]  
Fair value 26,697 [7],[11],[12] 15,634 [8],[13],[14]  
MS Private Loan Fund II, LP      
Schedule of Investments [Line Items]      
Cost 10,416 [3],[11],[12] 7,390 [6],[13],[14]  
Fair value 10,980 [7],[11],[12] 7,784 [8],[13],[14]  
MVI MSO, LLC      
Schedule of Investments [Line Items]      
Cost [3] 12,468    
Fair value [7] 14,538    
NAPCO Precast, LLC      
Schedule of Investments [Line Items]      
Cost [3] 4,145    
Fair value [7] 15,048    
Nello Industries Investco, LLC      
Schedule of Investments [Line Items]      
Cost 43,064 [3] 39,063 [6]  
Fair value 55,402 [7] 42,503 [8]  
NRP Jones, LLC      
Schedule of Investments [Line Items]      
Cost 7,508 [3] 6,115 [6]  
Fair value 1,402 [7] 4,968 [8]  
NuStep, LLC      
Schedule of Investments [Line Items]      
Cost 34,091 [3] 36,690 [6]  
Fair value 37,750 [7] 39,589 [8]  
OMi Topco, LLC      
Schedule of Investments [Line Items]      
Cost 30,036 [3] 10,050 [6]  
Fair value 106,900 [7] 81,720 [8]  
Orttech Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 31,348 [3] 31,890 [6]  
Fair value 34,822 [7] 35,410 [8]  
Pinnacle TopCo, LLC      
Schedule of Investments [Line Items]      
Cost 39,568 [3] 40,942 [6]  
Fair value 47,640 [7] 47,000 [8]  
PPL RVs, Inc.      
Schedule of Investments [Line Items]      
Cost 17,510 [3] 18,729 [6]  
Fair value 33,096 [7] 34,080 [8]  
Principle Environmental, LLC      
Schedule of Investments [Line Items]      
Cost 11,789 [3] 11,770 [6]  
Fair value 21,387 [7] 18,061 [8]  
Robbins Bros. Jewelry, Inc.      
Schedule of Investments [Line Items]      
Cost 42,779 [3] 43,655 [6]  
Fair value 13,967 [7] 14,523 [8]  
Tedder Industries, LLC      
Schedule of Investments [Line Items]      
Cost 26,376 [3] 27,336 [6]  
Fair value 3,789 [7] 5,249 [8]  
Televerde, LLC      
Schedule of Investments [Line Items]      
Cost 2,008 [3] 2,008 [6]  
Fair value 6,616 [7] 6,046 [8]  
Trantech Radiator Topco, LLC      
Schedule of Investments [Line Items]      
Cost 16,344 [3] 12,509 [6]  
Fair value 26,656 [7] 16,424 [8]  
Trinity Medical Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 80,444    
Fair value [7] 80,444    
Victory Energy Operations, LLC      
Schedule of Investments [Line Items]      
Cost 71,196 [3] 70,445 [6]  
Fair value 72,105 [7] 70,445 [8]  
Volusion, LLC      
Schedule of Investments [Line Items]      
Cost 20,506 [3] 22,654 [6]  
Fair value 5,010 [7] 9,103 [8]  
VVS Holdco LLC      
Schedule of Investments [Line Items]      
Cost 36,196 [3] 37,901 [6]  
Fair value 36,196 [7] 37,901 [8]  
Ziegler’s NYPD, LLC      
Schedule of Investments [Line Items]      
Cost 5,054 [3] 1,415,970 [6],[15]  
Fair value 1,887 [7] 2,087,890 [8],[15]  
AAC Holdings, Inc.      
Schedule of Investments [Line Items]      
Cost 19,284 [3],[16] 21,203 [6],[17]  
Fair value 8,990 [7],[16] 17,974 [8],[17]  
Boccella Precast Products LLC      
Schedule of Investments [Line Items]      
Cost 2,512 [3] 2,576 [6]  
Fair value 3,076 [7] 576 [8]  
Buca C, LLC      
Schedule of Investments [Line Items]      
Cost 16,914 [3] 16,284 [6]  
Fair value 0 [7] 0 [8]  
Career Team Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 26,672 [3] 24,751 [6]  
Fair value 26,876 [7] 24,991 [8]  
CenterPeak Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 30,532 [3] 25,041 [6]  
Fair value 51,247 [7] 36,057 [8]  
CGMS Parent LLC      
Schedule of Investments [Line Items]      
Cost [3] 34,715    
Fair value [7] 34,715    
Connect Telecommunications Solutions Holdings, Inc.      
Schedule of Investments [Line Items]      
Cost 36,749 [3],[11],[18] 39,911 [6],[13]  
Fair value 36,749 [7],[11],[18] 39,911 [8],[13]  
DMA Industries, LLC      
Schedule of Investments [Line Items]      
Cost 23,008 [3] 26,461 [6]  
Fair value 27,958 [7] 26,461 [8]  
Dos Rios Partners      
Schedule of Investments [Line Items]      
Cost 7,947 [3],[11],[12] 8,132 [6],[13],[14]  
Fair value 10,576 [7],[11],[12] 10,155 [8],[13],[14]  
FCC Intermediate Holdco, LLC      
Schedule of Investments [Line Items]      
Cost 32,368 [3] 33,029 [6]  
Fair value 46,300 [7] 39,949 [8]  
Freeport Financial Funds      
Schedule of Investments [Line Items]      
Cost 3,008 [3],[11],[12] 4,239 [6],[13],[14]  
Fair value 1,793 [7],[11],[12] 3,453 [8],[13],[14]  
FRG AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost [3] 13,883    
Fair value [7] 13,883    
GFG Group, LLC      
Schedule of Investments [Line Items]      
Cost 18,950 [3] 13,064 [6]  
Fair value 24,993 [7] 18,725 [8]  
Gulf Manufacturing, LLC      
Schedule of Investments [Line Items]      
Cost 42,697 [3],[11],[18] 42,502 [6],[13],[19]  
Fair value 49,992 [7],[11],[18] 54,618 [8],[13],[19]  
Hawk Ridge Systems, LLC      
Schedule of Investments [Line Items]      
Cost 51,475 [3] 50,844 [6]  
Fair value 76,165 [7] 69,231 [8]  
Houston Plating and Coatings, LLC      
Schedule of Investments [Line Items]      
Cost 5,352 [3] 5,352 [6]  
Fair value 6,720 [7] 6,870 [8]  
Infinity X1 Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 19,657 [3] 19,322 [6]  
Fair value 23,309 [7] 24,130 [8]  
Integral Energy Services      
Schedule of Investments [Line Items]      
Cost 14,205 [3],[9] 14,438 [6],[10]  
Fair value 13,216 [7],[9] 13,730 [8],[10]  
Iron-Main Investments, LLC      
Schedule of Investments [Line Items]      
Cost 46,987 [3] 47,011 [6]  
Fair value 47,250 [7] 47,154 [8]  
ITA Holdings Group, LLC      
Schedule of Investments [Line Items]      
Cost 19,393 [3] 11,785 [6]  
Fair value 33,360 [7] 16,740 [8]  
KMS, LLC      
Schedule of Investments [Line Items]      
Cost 7,003 [3],[9] 9,232 [6],[10]  
Fair value 8,383 [7],[9] 6,331 [8],[10]  
Mills Fleet Farm Group, LLC      
Schedule of Investments [Line Items]      
Cost 19,578 [3],[9] 13,840 [6],[10]  
Fair value 17,017 [7],[9] 13,840 [8],[10]  
MoneyThumb Acquisition, LLC      
Schedule of Investments [Line Items]      
Cost 10,214 [3] 11,268 [6]  
Fair value 10,608 [7] 11,268 [8]  
Nearshore AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost [3] 26,863    
Fair value [7] 26,863    
OnAsset Intelligence, Inc.      
Schedule of Investments [Line Items]      
Cost 12,683 [3] 12,683 [6]  
Fair value 1,239 [7] 1,180 [8]  
RA Outdoors LLC      
Schedule of Investments [Line Items]      
Cost 16,414 [3],[9] 15,497 [6],[10],[13]  
Fair value 13,537 [7],[9] 14,412 [8],[10],[13]  
Revenue Recovery Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 7,671    
Fair value [7] 7,671    
RFG AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost [3] 53,026    
Fair value [7] 54,396    
SI East, LLC      
Schedule of Investments [Line Items]      
Cost 70,533 [3] 71,372 [6]  
Fair value 86,290 [7] 83,571 [8]  
Slick Innovations, LLC      
Schedule of Investments [Line Items]      
Cost 24,451 [3] 16,181 [6]  
Fair value 26,840 [7] 18,760 [8]  
Specialized Aviation Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [3] 43,362    
Fair value [7] 43,362    
Student Resource Center, LLC      
Schedule of Investments [Line Items]      
Cost 5,106 [3],[9] 5,088 [6],[10]  
Fair value 2,218 [7],[9] 1,848 [8],[10]  
The Affiliati Network, LLC      
Schedule of Investments [Line Items]      
Cost 6,713 [3] 12,263 [6]  
Fair value 6,713 [7] 12,134 [8]  
UniTek Global Services, Inc.      
Schedule of Investments [Line Items]      
Cost 20,007 [3],[16] 22,048 [6],[17]  
Fair value 9,388 [7],[16] 15,758 [8],[17]  
Urgent DSO LLC      
Schedule of Investments [Line Items]      
Cost 13,357 [3] 13,047 [6]  
Fair value 13,028 [7] 13,047 [8]  
World Micro Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 13,693 [3] 743,441 [6],[20]  
Fair value 13,693 [7] 846,798 [8],[20]  
Adams Publishing Group, LLC      
Schedule of Investments [Line Items]      
Cost 25,234 [3],[9] 26,746 [6],[10]  
Fair value 25,142 [7],[9] 26,277 [8],[10]  
AGS American Glass Services Acquisition, LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 10,578    
Fair value [7],[9] 10,474    
Airo Purchaser, Inc.      
Schedule of Investments [Line Items]      
Cost [3],[9] 28,578    
Fair value [7],[9] 28,695    
American Health Staffing Group, Inc.      
Schedule of Investments [Line Items]      
Cost 5,587 [3],[9] 6,133 [6],[10]  
Fair value 5,598 [7],[9] 6,157 [8],[10]  
ArborWorks, LLC      
Schedule of Investments [Line Items]      
Cost 27,456 [3],[9] 24,345 [6],[10]  
Fair value 29,821 [7],[9] 22,603 [8],[10]  
ATS Operating, LLC      
Schedule of Investments [Line Items]      
Cost 15,777 [3],[9] 14,400 [6],[10]  
Fair value 16,090 [7],[9] 14,530 [8],[10]  
Auria Space, LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 55,696    
Fair value [7],[9] 55,696    
AVEX Aviation Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 23,879 [3],[9] 24,334 [6],[10]  
Fair value 24,270 [7],[9] 24,879 [8],[10]  
Behavior Development Group Holdings      
Schedule of Investments [Line Items]      
Cost [3],[9] 9,732    
Fair value [7],[9] 9,732    
Berry Aviation, Inc.      
Schedule of Investments [Line Items]      
Cost 286 [3],[9] 286 [6],[10]  
Fair value 0 [7],[9] 0 [8],[10]  
Bluestem Brands, Inc.      
Schedule of Investments [Line Items]      
Cost 7,907 [3],[16] 8,211 [6],[17]  
Fair value 421 [7],[16] 6,310 [8],[17]  
B-O-F Corporation      
Schedule of Investments [Line Items]      
Cost [3],[9] 7,996    
Fair value [7],[9] 8,056    
Bond Brand Loyalty ULC      
Schedule of Investments [Line Items]      
Cost 14,933 [3],[9],[11],[18] 13,635 [6],[10],[13],[19]  
Fair value 15,071 [7],[9],[11],[18] 13,753 [8],[10],[13],[19]  
BP Loenbro Holdings Inc.      
Schedule of Investments [Line Items]      
Cost 58,750 [3],[9] 29,204 [6],[10]  
Fair value 66,822 [7],[9] 30,970 [8],[10]  
Brainworks Software, LLC      
Schedule of Investments [Line Items]      
Cost 7,817 [3],[9] 7,817 [6],[10]  
Fair value 0 [7],[9] 1,511 [8],[10]  
Brightwood Capital Fund Investments      
Schedule of Investments [Line Items]      
Cost 13,085 [3],[11],[12] 12,929 [6],[13],[14]  
Fair value 11,062 [7],[11],[12] 10,945 [8],[13],[14]  
Channel Partners Intermediateco, LLC      
Schedule of Investments [Line Items]      
Cost 49,512 [3],[9] 47,577 [6],[10]  
Fair value 49,820 [7],[9] 45,779 [8],[10]  
Computer Data Source, LLC      
Schedule of Investments [Line Items]      
Cost 30,167 [3],[9] 26,491 [6],[10]  
Fair value 28,745 [7],[9] 24,997 [8],[10]  
Core Transformers      
Schedule of Investments [Line Items]      
Cost [3],[9] 6,660    
Fair value [7],[9] 6,660    
Coregistics Buyer LLC      
Schedule of Investments [Line Items]      
Cost 50,180 [3],[9],[11],[18] 50,364 [6],[10],[13],[19]  
Fair value 50,807 [7],[9],[11],[18] 49,298 [8],[10],[13],[19]  
CQ Fluency, LLC      
Schedule of Investments [Line Items]      
Cost 10,105 [3],[9] 10,506 [6],[10]  
Fair value 10,238 [7],[9] 10,660 [8],[10]  
CRC Evans USA Bidco, Inc.      
Schedule of Investments [Line Items]      
Cost [3],[9],[11],[18] 30,365    
Fair value [7],[9],[11],[18] 30,862    
Creative Foam Corporation      
Schedule of Investments [Line Items]      
Cost 93,764 [3],[9] 104,076 [6],[10]  
Fair value 94,890 [7],[9] 104,957 [8],[10]  
DTE Enterprises, LLC      
Schedule of Investments [Line Items]      
Cost 2,092 [3],[9] 2,092 [6],[10]  
Fair value 0 [7],[9] 438 [8],[10]  
Dynamic Communities, LLC      
Schedule of Investments [Line Items]      
Cost 4,894 [3],[9] 4,467 [6],[10]  
Fair value 5,185 [7],[9] 4,499 [8],[10]  
Electro Technical Industries, LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 50,627    
Fair value [7],[9] 52,227    
EnCap Energy Fund Investments      
Schedule of Investments [Line Items]      
Cost 28,709 [3],[11],[12] 27,878 [6],[13],[14]  
Fair value 15,558 [7],[11],[12] 17,534 [8],[13],[14]  
Escalent, Inc.      
Schedule of Investments [Line Items]      
Cost 27,072 [3],[9] 27,482 [6],[10]  
Fair value 27,781 [7],[9] 28,289 [8],[10]  
Event Holdco, LLC      
Schedule of Investments [Line Items]      
Cost 51,633 [3],[9] 51,135 [6],[10]  
Fair value 51,727 [7],[9] 51,325 [8],[10]  
Fuse, LLC      
Schedule of Investments [Line Items]      
Cost 2,066 [3],[16] 2,066 [6],[17]  
Fair value 323 [7],[16] 932 [8],[17]  
Garyline, LLC      
Schedule of Investments [Line Items]      
Cost 28,838 [3],[9] 40,022 [6],[10]  
Fair value 29,056 [7],[9] 40,764 [8],[10]  
GradeEight Corp.      
Schedule of Investments [Line Items]      
Cost 36,849 [3],[9] 32,224 [6],[10]  
Fair value 36,288 [7],[9] 32,224 [8],[10]  
GS HVAM Intermediate, LLC      
Schedule of Investments [Line Items]      
Cost 23,515 [3],[9] 19,515 [6],[10]  
Fair value 23,619 [7],[9] 19,616 [8],[10]  
GULF PACIFIC ACQUISITION, LLC      
Schedule of Investments [Line Items]      
Cost 4,232 [3],[9] 4,513 [6],[10]  
Fair value 3,959 [7],[9] 4,291 [8],[10]  
HDC/HW Intermediate Holdings      
Schedule of Investments [Line Items]      
Cost 3,270 [3],[9] 3,040 [6],[10]  
Fair value 2,272 [7],[9] 2,745 [8],[10]  
Hornblower Sub, LLC      
Schedule of Investments [Line Items]      
Cost 37,071 [3],[9] 33,086 [6],[10]  
Fair value 36,860 [7],[9] 33,108 [8],[10]  
IG Parent Corporation      
Schedule of Investments [Line Items]      
Cost 14,884 [3],[16] 14,922 [6],[17]  
Fair value 14,980 [7],[16] 15,057 [8],[17]  
Ignite Visibility LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 9,378    
Fair value [7],[9] 9,378    
Implus Footcare, LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 12,049    
Fair value [7],[9] 11,279    
Insight Borrower Corporation      
Schedule of Investments [Line Items]      
Cost 15,922 [3],[9] 14,491 [6],[10]  
Fair value 14,751 [7],[9] 13,758 [8],[10]  
Inspire Aesthetics Management, LLC      
Schedule of Investments [Line Items]      
Cost 11,782 [3],[9] 11,213 [6],[10]  
Fair value 10,887 [7],[9] 10,057 [8],[10]  
Interface Security Systems, L.L.C      
Schedule of Investments [Line Items]      
Cost 9,629 [3],[9] 9,312 [6],[10]  
Fair value 2,078 [7],[9] 1,593 [8],[10]  
Invincible Boat Company, LLC.      
Schedule of Investments [Line Items]      
Cost 18,209 [3],[9] 17,736 [6],[10]  
Fair value 16,566 [7],[9] 17,093 [8],[10]  
Isagenix International, LLC      
Schedule of Investments [Line Items]      
Cost 3,016 [3],[16] 2,958 [6],[17]  
Fair value 458 [7],[16] 663 [8],[17]  
Island Pump and Tank, LLC      
Schedule of Investments [Line Items]      
Cost 6,704 [3],[9] 5,119 [6],[10]  
Fair value 6,587 [7],[9] 5,161 [8],[10]  
Jackmont Hospitality, Inc.      
Schedule of Investments [Line Items]      
Cost 3,865 [3],[9] 3,382 [6],[10]  
Fair value 4,531 [7],[9] 4,192 [8],[10]  
Joerns Healthcare, LLC      
Schedule of Investments [Line Items]      
Cost 3,402 [3],[16] 9,938 [6],[17]  
Fair value 3,552 [7],[16] 3,224 [8],[17]  
Logix Acquisition Company, LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 45,738    
Fair value [7],[9] 46,339    
MCT Purchaserco Holding Inc.      
Schedule of Investments [Line Items]      
Cost [3],[9],[11],[18] 46,488    
Fair value [7],[9],[11],[18] 46,488    
Microbe Formulas, LLC      
Schedule of Investments [Line Items]      
Cost 24,672 [3],[9] 30,552 [6],[10]  
Fair value 24,882 [7],[9] 30,924 [8],[10]  
Mini Melts of America, LLC      
Schedule of Investments [Line Items]      
Cost 12,736 [3],[9] 11,963 [6],[10]  
Fair value 12,099 [7],[9] 12,128 [8],[10]  
Mission Critical Group      
Schedule of Investments [Line Items]      
Cost [3],[9] 80,284    
Fair value [7],[9] 96,131    
MonitorUS Holding, LLC      
Schedule of Investments [Line Items]      
Cost 34,966 [3],[9],[11],[18] 33,838 [6],[10],[13],[19]  
Fair value 36,781 [7],[9],[11],[18] 34,160 [8],[10],[13],[19]  
Obra Capital, Inc.      
Schedule of Investments [Line Items]      
Cost 28,621 [3],[9] 25,649 [6],[10]  
Fair value 29,241 [7],[9] 25,880 [8],[10]  
OnPoint Industrial Services, LLC      
Schedule of Investments [Line Items]      
Cost 5,200 [3],[9] 5,236 [6],[10]  
Fair value 5,237 [7],[9] 5,236 [8],[10]  
PrimeFlight Aviation Services      
Schedule of Investments [Line Items]      
Cost 15,927 [3],[9],[11] 9,986 [6],[10]  
Fair value 16,160 [7],[9],[11] 10,247 [8],[10]  
Richardson Sales Solutions      
Schedule of Investments [Line Items]      
Cost 55,120 [3],[9] 58,338 [6],[10]  
Fair value 56,066 [7],[9] 59,664 [8],[10]  
Roof Opco, LLC      
Schedule of Investments [Line Items]      
Cost 6,718 [3],[9] 6,665 [6],[10]  
Fair value 4,819 [7],[9] 6,123 [8],[10]  
Rug Doctor, LLC.      
Schedule of Investments [Line Items]      
Cost 10,457 [3],[9] 13,300 [6],[10]  
Fair value 10,552 [7],[9] 13,337 [8],[10]  
South Coast Terminals Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 64,269 [3],[9] 53,803 [6],[10]  
Fair value 64,808 [7],[9] 54,205 [8],[10]  
SPAU Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 15,906 [3],[9] 16,017 [6],[10]  
Fair value 16,039 [7],[9] 16,179 [8],[10]  
TEC Services, LLC      
Schedule of Investments [Line Items]      
Cost 31,500 [3],[9] 41,490 [6],[10]  
Fair value 31,770 [7],[9] 41,490 [8],[10]  
Titan Meter Midco Corp.      
Schedule of Investments [Line Items]      
Cost 44,544 [3],[9] 34,051 [6],[10]  
Fair value 45,725 [7],[9] 35,222 [8],[10]  
U.S. TelePacific Corp.      
Schedule of Investments [Line Items]      
Cost 2,631 [3],[16] 3,277 [6],[17]  
Fair value 3,998 [7],[16] 3,910 [8],[17]  
UPS Intermediate, LLC      
Schedule of Investments [Line Items]      
Cost 43,740 [3],[9] 44,001 [6],[10]  
Fair value 44,102 [7],[9] 44,347 [8],[10]  
Vitesse Systems      
Schedule of Investments [Line Items]      
Cost 48,631 [3],[9] 46,918 [6],[10]  
Fair value 49,377 [7],[9] 47,870 [8],[10]  
Wash & Wax Systems LLC      
Schedule of Investments [Line Items]      
Cost [3],[9] 16,631    
Fair value [7],[9] 14,741    
Watterson Brands, LLC      
Schedule of Investments [Line Items]      
Cost 32,468 [3],[9] 31,490 [6],[10]  
Fair value 22,233 [7],[9] 29,918 [8],[10]  
Winter Services LLC      
Schedule of Investments [Line Items]      
Cost 20,215 [3],[9] 18,279 [6],[10]  
Fair value 20,354 [7],[9] 18,029 [8],[10]  
Xenon Arc, Inc.      
Schedule of Investments [Line Items]      
Cost 70,534 [3],[9] 60,612 [6],[10]  
Fair value 71,179 [7],[9] 61,256 [8],[10]  
ZRG Partners, LLC      
Schedule of Investments [Line Items]      
Cost 70,277 [3],[9] 57,097 [6],[10]  
Fair value 71,402 [7],[9] 58,471 [8],[10]  
ATS Workholding, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   8,942  
Fair value [8],[10]   256  
Barfly Ventures, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   2,295  
Fair value [8],[10]   6,571  
Gulf Publishing Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [6]   11,580  
Fair value [8]   1,518  
Mystic Logistics Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [6]   8,451  
Fair value [8]   32,116  
NexRev LLC      
Schedule of Investments [Line Items]      
Cost [6]   18,016  
Fair value [8]   21,721  
Nebraska Vet AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost [6]   73,544  
Fair value [8]   98,890  
American Teleconferencing Services, Ltd.      
Schedule of Investments [Line Items]      
Cost [6],[17]   16,746  
Fair value [8],[17]   450  
Ansira Partners II, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   73,603  
Fair value [8],[10]   74,092  
Bettercloud, Inc.      
Schedule of Investments [Line Items]      
Cost [6],[10]   31,436  
Fair value [8],[10]   23,936  
Burning Glass Intermediate Holding Company, Inc.      
Schedule of Investments [Line Items]      
Cost [6],[10]   17,744  
Fair value [8],[10]   17,915  
CAI Software LLC      
Schedule of Investments [Line Items]      
Cost [6]   2,142  
Fair value [8]   2,417  
Electro Technical Industries, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   27,506  
Fair value [8],[10]   26,542  
HEADLANDS OP-CO LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   35,404  
Fair value [8],[10]   35,836  
Imaging Business Machines, L.L.C.      
Schedule of Investments [Line Items]      
Cost [6],[10]   22,817  
Fair value [8],[10]   23,160  
JDC Power Services, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   59,411  
Fair value [8],[10]   60,174  
LL Management, Inc.      
Schedule of Investments [Line Items]      
Cost [6],[10]   30,322  
Fair value [8],[10]   30,538  
Mako Steel, LP      
Schedule of Investments [Line Items]      
Cost [6],[10]   18,807  
Fair value [8],[10]   18,973  
NinjaTrader, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   28,010  
Fair value [8],[10]   28,237  
Power System Solutions      
Schedule of Investments [Line Items]      
Cost [6],[10]   25,017  
Fair value [8],[10]   28,094  
PTL US Bidco, Inc      
Schedule of Investments [Line Items]      
Cost [6],[10],[13],[19]   24,354  
Fair value [8],[10],[13],[19]   24,400  
Purge Rite, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   3,281  
Fair value [8],[10]   5,308  
Veregy Consolidated, Inc.      
Schedule of Investments [Line Items]      
Cost [6],[17]   17,290  
Fair value [8],[17]   17,496  
Wall Street Prep, Inc.      
Schedule of Investments [Line Items]      
Cost [6],[10]   2,146  
Fair value [8],[10]   2,967  
West Star Aviation Acquisition, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   19,483  
Fair value [8],[10]   23,101  
Zips Car Wash, LLC      
Schedule of Investments [Line Items]      
Cost [6],[10]   22,541  
Fair value [8],[10]   18,575  
Royal Cup Inc.      
Schedule of Investments [Line Items]      
Cost [3],[9] 55,671    
Fair value [7],[9] 55,671    
UBM AcquireCo LLC      
Schedule of Investments [Line Items]      
Cost [3] 50,341    
Fair value [7] 50,341    
Harris Preston Fund Investments      
Schedule of Investments [Line Items]      
Cost 8,708 [3],[11],[12] 8,578 [6],[13],[14]  
Fair value 12,805 [7],[11],[12] 11,559 [8],[13],[14]  
Control investments      
Schedule of Investments [Line Items]      
Cost 1,824,132 [3] 1,415,970  
Fair value $ 2,569,626 [7] $ 2,087,890 $ 2,006,698
Investment owned, percent of net assets (as a percent) 85.80% [1],[2],[21] 74.60% [4],[5],[15]  
Affiliate investments      
Schedule of Investments [Line Items]      
Cost $ 881,641 [3] $ 743,441  
Fair value $ 965,179 [7] $ 846,798 615,002
Investment owned, percent of net assets (as a percent) 32.20% [1],[2],[21] 30.30% [4],[5],[20]  
Non‑Control/Non‑Affiliate investments      
Schedule of Investments [Line Items]      
Cost $ 2,018,755 [3],[22] $ 2,077,901 [6],[21]  
Fair value $ 1,983,312 [7],[22] $ 1,997,981 [8],[21]  
Investment owned, percent of net assets (as a percent) [21] 66.20% [1],[2] 71.40% [4],[5]  
Investment, Identifier [Axis]: 2717 MH, L.P. | LP Interests (2717 GRE-LP, L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 441 $ 441 0
Investment, Identifier [Axis]: 2717 MH, L.P. | LP Interests (2717 HPP-MS, L.P.)      
Schedule of Investments [Line Items]      
Fair value 447 383 315
Investment, Identifier [Axis]: 2717 MH, L.P. | LP Interests (2717 MH, L.P.)      
Schedule of Investments [Line Items]      
Fair value 1,795 8,818 6,050
Investment, Identifier [Axis]: 423 HAR, LP | LP Interests (423 HAR, L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 1,226 $ 1,226 996
Investment, Identifier [Axis]: AAC Holdings, Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 654,743 [16],[23] 654,743 [17],[20]  
Cost $ 3,148 [3],[16],[23] $ 3,148 [6],[17],[20]  
Fair value $ 0 [7],[16],[23] 0 [8],[17],[20] 0
Investment, Identifier [Axis]: AAC Holdings, Inc. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [16],[23] 12,621,635    
Cost [3],[16],[23] $ 8,520    
Fair value $ 2,080 [7],[16],[23] $ 0  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 20.00% [16],[23] 18.00% [17],[20]  
PIK Rate 20.00% [16],[23],[24] 18.00% [17],[20],[25]  
Principal $ 895 [3],[16],[23] $ 612 [6],[17],[20]  
Cost 895 [3],[16],[23] 611 [6],[17],[20]  
Fair value $ 895 [7],[16],[23] 609 [8],[17],[20] 418
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 20.00%    
PIK Rate 20.00%    
Fair value $ 895 609  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value $ 0 17,365  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate 20.00%    
PIK Rate 20.00%    
Fair value $ 2,756 0  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate 20.00%    
PIK Rate 20.00%    
Fair value $ 2,756 0  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 1.5      
Schedule of Investments [Line Items]      
Total Rate 21.00%    
PIK Rate 21.00%    
Fair value $ 503 $ 0  
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 21.00% [16],[23] 18.00% [17],[20]  
PIK Rate 21.00% [16],[23],[24] 18.00% [17],[20],[25]  
Principal $ 513 [3],[16],[23] $ 17,474 [6],[17],[20]  
Cost 503 [3],[16],[23] 17,444 [6],[17],[20]  
Fair value $ 503 [7],[16],[23] $ 17,365 [8],[17],[20] 13,895
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [16],[23],[26] 20.00%    
PIK Rate [16],[23],[24],[26] 20.00%    
Principal [3],[16],[23],[26] $ 3,109    
Cost [3],[16],[23],[26] 3,109    
Fair value [7],[16],[23],[26] $ 2,756    
Investment, Identifier [Axis]: AAC Holdings, Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [16],[23],[26] 20.00%    
PIK Rate [16],[23],[24],[26] 20.00%    
Principal [3],[16],[23],[26] $ 3,109    
Cost [3],[16],[23],[26] 3,109    
Fair value [7],[16],[23],[26] 2,756    
Investment, Identifier [Axis]: AAC Holdings, Inc. | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [17],[20],[27]   574,598  
Cost [6],[17],[20],[27]   $ 0  
Fair value $ 0 $ 0 [8],[17],[20],[27] 0
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 7,292    
Cost [3],[9],[22] $ 729    
Fair value [7],[9],[22] $ 729    
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (35)    
Fair value [7],[9],[22],[29],[30] $ (35)    
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (20)    
Fair value [7],[9],[22],[29],[30] $ (20)    
Investment, Identifier [Axis]: AGS American Glass Services Acquisition, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.22%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 10,042    
Cost [3],[9],[22],[30] 9,904    
Fair value [7],[9],[22],[30] $ 9,800    
Investment, Identifier [Axis]: AMEREQUIP LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 235 [9],[22],[31] 235 [10],[21],[32]  
Cost $ 1,844 [3],[9],[22],[31] $ 1,844 [6],[10],[21],[32]  
Fair value $ 0 [7],[9],[22],[31] $ 570 [8],[10],[21],[32]  
Investment, Identifier [Axis]: ASC Interests, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,500 [33] 1,500 [15]  
Cost $ 1,500 [3],[33] $ 1,500 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 100
Investment, Identifier [Axis]: ASC Interests, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 178 [33] 178 [15]  
Cost $ 178 [3],[33] $ 178 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 266
Investment, Identifier [Axis]: ASC Interests, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33],[34] 13.00% [15],[35]  
Principal $ 400 [3],[33],[34] $ 400 [6],[15],[35]  
Cost 400 [3],[33],[34] 400 [6],[15],[35]  
Fair value $ 400 [7],[33],[34] $ 400 [8],[15],[35] 400
Investment, Identifier [Axis]: ASC Interests, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33],[34] 13.00% [15],[35]  
Principal $ 1,533 [3],[33],[34] $ 1,650 [6],[15],[35]  
Cost 1,533 [3],[33],[34] 1,650 [6],[15],[35]  
Fair value $ 1,502 [7],[33],[34] $ 1,598 [8],[15],[35] 1,597
Investment, Identifier [Axis]: ATS Operating, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 720,000 [9],[22] 720,000 [10],[21]  
Cost $ 720 [3],[9],[22] $ 720 [6],[10],[21]  
Fair value $ 970 [7],[9],[22] $ 850 [8],[10],[21]  
Investment, Identifier [Axis]: ATS Operating, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.22% [9],[22],[30],[36] 10.85% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30],[36] 6.00% [10],[21],[37],[38]  
Principal $ 1,800 [3],[9],[22],[30],[36] $ 360 [6],[10],[21],[37]  
Cost 1,737 [3],[9],[22],[30],[36] 360 [6],[10],[21],[37]  
Fair value $ 1,800 [7],[9],[22],[30],[36] $ 360 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ATS Operating, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.25% [9],[22],[30] 9.85% [10],[21],[37]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 5.00% [10],[21],[37],[38]  
Principal $ 6,660 [3],[9],[22],[30] $ 6,660 [6],[10],[21],[37]  
Cost 6,660 [3],[9],[22],[30] 6,660 [6],[10],[21],[37]  
Fair value $ 6,660 [7],[9],[22],[30] $ 6,660 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ATS Operating, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.25% [9],[22],[30] 11.85% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 6,660 [3],[9],[22],[30] $ 6,660 [6],[10],[21],[37]  
Cost 6,660 [3],[9],[22],[30] 6,660 [6],[10],[21],[37]  
Fair value 6,660 [7],[9],[22],[30] $ 6,660 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ATS Workholding, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [10],[15]   3,725,862  
Cost [6],[10],[15]   $ 3,726  
Fair value 0 $ 0 [8],[10],[15] 0
Investment, Identifier [Axis]: ATS Workholding, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[15],[39]   5.00%  
Principal [6],[10],[15],[39]   $ 2,383  
Cost [6],[10],[15],[39]   2,374  
Fair value 0 $ 113 [8],[10],[15],[39] 328
Investment, Identifier [Axis]: ATS Workholding, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[15],[35],[39]   5.00%  
Principal [6],[10],[15],[35],[39]   $ 3,015  
Cost [6],[10],[15],[35],[39]   2,842  
Fair value $ 0 $ 143 [8],[10],[15],[35],[39] 473
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 984 [9],[22],[31] 984 [10],[21],[32]  
Cost $ 934 [3],[9],[22],[31] $ 934 [6],[10],[21],[32]  
Fair value $ 920 [7],[9],[22],[31] $ 896 [8],[10],[21],[32]  
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 7.25% [9],[22],[28],[29],[30] 7.25% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (63) [3],[9],[22],[29],[30] (90) [6],[10],[21],[37],[40]  
Fair value $ (63) [7],[9],[22],[29],[30] $ (90) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.09% [9],[22],[30] 11.73% [10],[21],[37]  
Spread (as a percent) 7.25% [9],[22],[28],[30] 7.25% [10],[21],[37],[38]  
Principal $ 23,451 [3],[9],[22],[30] $ 24,073 [6],[10],[21],[37]  
Cost 23,046 [3],[9],[22],[30] 23,490 [6],[10],[21],[37]  
Fair value $ 23,451 [7],[9],[22],[30] $ 24,073 [8],[10],[21],[37]  
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 7.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (38)    
Fair value [7],[9],[22],[29],[30] $ (38)    
Investment, Identifier [Axis]: Adams Publishing Group, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.00% [9],[22],[30],[41] 11.00% [10],[21],[37],[42]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[41] 7.00% [10],[21],[37],[38],[42]  
PIK Rate 1.00% [9],[22],[24],[30],[41] 1.00% [10],[21],[25],[37],[42]  
Principal $ 8,000 [3],[9],[22],[30],[41] $ 7,920 [6],[10],[21],[37],[42]  
Cost 8,000 [3],[9],[22],[30],[41] 7,920 [6],[10],[21],[37],[42]  
Fair value $ 7,965 [7],[9],[22],[30],[41] $ 7,773 [8],[10],[21],[37],[42]  
Investment, Identifier [Axis]: Adams Publishing Group, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.00% [9],[22],[30],[41] 11.00% [10],[21],[37],[42]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[41] 7.00% [10],[21],[37],[38],[42]  
PIK Rate 1.00% [9],[22],[24],[30],[41] 1.00% [10],[21],[25],[37],[42]  
Principal $ 789 [3],[9],[22],[30],[41] $ 18,853 [6],[10],[21],[37],[42]  
Cost 775 [3],[9],[22],[30],[41] 18,826 [6],[10],[21],[37],[42]  
Fair value $ 775 [7],[9],[22],[30],[41] $ 18,504 [8],[10],[21],[37],[42]  
Investment, Identifier [Axis]: Adams Publishing Group, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30],[41] 11.00%    
Spread (as a percent) [9],[22],[28],[30],[41] 7.00%    
PIK Rate [9],[22],[24],[30],[41] 1.00%    
Principal [3],[9],[22],[30],[41] $ 16,473    
Cost [3],[9],[22],[30],[41] 16,459    
Fair value [7],[9],[22],[30],[41] $ 16,402    
Investment, Identifier [Axis]: Airo Purchaser, Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 1,521    
Cost [3],[9],[22] $ 1,521    
Fair value [7],[9],[22] $ 1,521    
Investment, Identifier [Axis]: Airo Purchaser, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (63)    
Fair value [7],[9],[22],[29],[30] $ (63)    
Investment, Identifier [Axis]: Airo Purchaser, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (32)    
Fair value [7],[9],[22],[29],[30] $ (32)    
Investment, Identifier [Axis]: Airo Purchaser, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.22%    
Spread (as a percent) [9],[22],[28],[30] 5.25%    
Principal [3],[9],[22],[30] $ 27,595    
Cost [3],[9],[22],[30] 27,152    
Fair value [7],[9],[22],[30] $ 27,269    
Investment, Identifier [Axis]: American Health Staffing Group, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.00% [9],[22],[28],[29],[30] 5.00% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (2) [3],[9],[22],[29],[30] (5) [6],[10],[21],[37],[40]  
Fair value $ (2) [7],[9],[22],[29],[30] $ (5) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: American Health Staffing Group, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.75% [9],[22],[30] 12.50% [10],[21],[37]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 5.00% [10],[21],[37],[38]  
Principal $ 5,600 [3],[9],[22],[30] $ 6,162 [6],[10],[21],[37]  
Cost 5,589 [3],[9],[22],[30] 6,138 [6],[10],[21],[37]  
Fair value $ 5,600 [7],[9],[22],[30] 6,162 [8],[10],[21],[37]  
Investment, Identifier [Axis]: American Nuts, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[33] 26,638    
Cost [3],[9],[33] $ 8,970    
Fair value $ 4,250 [7],[9],[33] $ 0  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.64% [9],[30],[33] 14.49% [10],[21],[37]  
Spread (as a percent) 8.50% [9],[28],[30],[33] 9.75% [10],[21],[37],[38]  
PIK Rate 12.64% [9],[24],[30],[33] 14.49% [10],[21],[25],[37]  
Principal $ 8,161 [3],[9],[30],[33] $ 7,517 [6],[10],[21],[37]  
Cost 8,161 [3],[9],[30],[33] 7,488 [6],[10],[21],[37]  
Fair value $ 8,161 [7],[9],[30],[33] 5,985 [8],[10],[21],[37]  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 12.64%    
Spread (as a percent) 8.50%    
PIK Rate 12.64%    
Fair value $ 8,161 0  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 12.64%    
Spread (as a percent) 8.50%    
PIK Rate 12.64%    
Fair value $ 6,582 $ 0  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.64% [9],[30],[33] 14.49% [10],[21],[37]  
Spread (as a percent) 8.50% [9],[28],[30],[33] 9.75% [10],[21],[37],[38]  
PIK Rate 12.64% [9],[24],[30],[33] 14.49% [10],[21],[25],[37]  
Principal $ 8,161 [3],[9],[30],[33] $ 12,230 [6],[10],[21],[37]  
Cost 8,161 [3],[9],[30],[33] 12,178 [6],[10],[21],[37]  
Fair value 6,582 [7],[9],[30],[33] $ 9,738 [8],[10],[21],[37]  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[39]   16.49%  
Spread (as a percent) [10],[21],[37],[38],[39]   11.75%  
PIK Rate [10],[21],[25],[37],[39]   16.49%  
Principal [6],[10],[21],[37],[39]   $ 5,705  
Cost [6],[10],[21],[37],[39]   5,645  
Fair value [8],[10],[21],[37],[39]   $ 3,502  
Investment, Identifier [Axis]: American Nuts, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[39]   16.49%  
Spread (as a percent) [10],[21],[37],[38],[39]   11.75%  
PIK Rate [10],[21],[25],[37],[39]   16.49%  
Principal [6],[10],[21],[37],[39]   $ 9,283  
Cost [6],[10],[21],[37],[39]   9,169  
Fair value [8],[10],[21],[37],[39]   5,697  
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd. | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [6],[17],[21],[35],[39]   3,166  
Cost [6],[17],[21],[35],[39]   2,989  
Fair value [8],[17],[21],[35],[39]   76  
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd. | Secured Debt 2      
Schedule of Investments [Line Items]      
Principal [6],[17],[21],[35],[39]   15,489  
Cost [6],[17],[21],[35],[39]   13,757  
Fair value [8],[17],[21],[35],[39]   374  
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period      
Schedule of Investments [Line Items]      
Fair value 0 29,588  
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period 1      
Schedule of Investments [Line Items]      
Fair value   0 (89,323)
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]      
Fair value $ 0 (80,952)  
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]      
Fair value   $ 0 58,515
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,411 [33] 2,427 [15]  
Cost $ 2,387 [3],[33] $ 2,427 [6],[15]  
Fair value 6,030 [7],[33] 5,300 [8],[15]  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 120 0 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Preferred Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value $ 6,030 $ 5,300 4,860
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 3,108 [33] 3,200 [15]  
Cost $ 3,200 [3],[33] $ 3,200 [6],[15]  
Fair value $ 120 [7],[33] 0 [8],[15]  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 13.75%    
Principal [3],[33] $ 3,895    
Cost [3],[33] 3,860    
Fair value [7],[33] 3,860    
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [6],[15],[40]   0  
Cost [6],[15],[40]   0  
Fair value [8],[15],[40]   0  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 0 219
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 13.75% 13.75%  
Fair value $ 3,860 $ 4,048 4,084
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15]   13.75%  
Principal [6],[15]   $ 4,095  
Cost [6],[15]   4,048  
Fair value [8],[15]   $ 4,048  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 420 [33],[43] 420 [15],[27]  
Cost $ 316 [3],[33],[43] $ 316 [6],[15],[27]  
Fair value $ 0 [7],[33],[43] $ 0 [8],[15],[27] 0
Investment, Identifier [Axis]: Ansira Partners II, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   6.75%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (187)  
Fair value [8],[10],[21],[37],[40]   $ (187)  
Investment, Identifier [Axis]: Ansira Partners II, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.25%  
Spread (as a percent) [10],[21],[37],[38]   6.75%  
Principal [6],[10],[21],[37]   $ 75,490  
Cost [6],[10],[21],[37]   73,790  
Fair value [8],[10],[21],[37]   $ 74,279  
Investment, Identifier [Axis]: ArborWorks, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,898 [9],[22] 3,898 [10],[21]  
Cost $ 234 [3],[9],[22] $ 234 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: ArborWorks, LLC | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) 32,507 [9],[22] 32,507 [10],[21]  
Cost $ 14,060 [3],[9],[22] $ 14,060 [6],[10],[21]  
Fair value $ 16,659 [7],[9],[22] $ 12,552 [8],[10],[21]  
Investment, Identifier [Axis]: ArborWorks, LLC | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) 32,507 [9],[22] 32,507 [10],[21]  
Cost $ 0 [3],[9],[22] $ 0 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: ArborWorks, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00% [9],[22] 15.00% [10],[21]  
PIK Rate 15.00% [9],[22],[24] 15.00% [10],[21],[25]  
Principal $ 4,177 [3],[9],[22] $ 1,997 [6],[10],[21]  
Cost 4,177 [3],[9],[22] 1,997 [6],[10],[21]  
Fair value $ 4,177 [7],[9],[22] $ 1,997 [8],[10],[21]  
Investment, Identifier [Axis]: ArborWorks, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.34% [9],[22],[30] 11.08% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
PIK Rate 10.34% [9],[22],[24],[30] 11.08% [10],[21],[25],[37]  
Principal $ 8,985 [3],[9],[22],[30] $ 8,054 [6],[10],[21],[37]  
Cost 8,985 [3],[9],[22],[30] 8,054 [6],[10],[21],[37]  
Fair value $ 8,985 [7],[9],[22],[30] $ 8,054 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Archer Systems, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,387,832 [9],[22],[31] 1,387,832 [10],[21]  
Cost $ 1,388 [3],[9],[22],[31] $ 1,388 [6],[10],[21]  
Fair value $ 2,450 [7],[9],[22],[31] $ 2,450 [8],[10],[21]  
Investment, Identifier [Axis]: Auria Space, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.00%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (168)    
Fair value [7],[9],[22],[29],[30] $ (168)    
Investment, Identifier [Axis]: Auria Space, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.00%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (299)    
Fair value [7],[9],[22],[29],[30] $ (299)    
Investment, Identifier [Axis]: Auria Space, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 8.72%    
Spread (as a percent) [9],[22],[28],[30] 5.00%    
Principal [3],[9],[22],[30] $ 57,004    
Cost [3],[9],[22],[30] 56,163    
Fair value [7],[9],[22],[30] $ 56,163    
Investment, Identifier [Axis]: B-O-F Corporation | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 248,718    
Cost [3],[9],[22] $ 249    
Fair value [7],[9],[22] $ 249    
Investment, Identifier [Axis]: B-O-F Corporation | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.75%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (17)    
Fair value [7],[9],[22],[29],[30] $ (17)    
Investment, Identifier [Axis]: B-O-F Corporation | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 8.74%    
Spread (as a percent) [9],[22],[28],[30] 4.75%    
Principal [3],[9],[22],[30] $ 3,938    
Cost [3],[9],[22],[30] 3,882    
Fair value [7],[9],[22],[30] $ 3,912    
Investment, Identifier [Axis]: B-O-F Corporation | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.74%    
Spread (as a percent) [9],[22],[28],[30] 6.75%    
Principal [3],[9],[22],[30] $ 3,938    
Cost [3],[9],[22],[30] 3,882    
Fair value [7],[9],[22],[30] $ 3,912    
Investment, Identifier [Axis]: BDB Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 18,756,995 [33] 18,756,995 [15]  
Cost $ 19,537 [3],[33] $ 19,537 [6],[15]  
Fair value $ 12,640 [7],[33] 18,920 [8],[15] 0
Investment, Identifier [Axis]: BDB Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 12.00%    
Principal [3],[33] $ 1,773    
Cost [3],[33] 1,773    
Fair value $ 1,773 [7],[33] $ 0  
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 2,583,963 [9],[22] 2,333,333 [10],[21]  
Cost $ 2,709 [3],[9],[22] $ 2,333 [6],[10],[21]  
Fair value $ 9,910 [7],[9],[22] $ 3,620 [8],[10],[21]  
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.75% [9],[22],[30],[36] 10.68% [10],[21],[37],[44]  
Spread (as a percent) 5.75% [9],[22],[28],[30],[36] 6.25% [10],[21],[37],[38],[44]  
Principal $ 3,946 [3],[9],[22],[30],[36] $ 1,199 [6],[10],[21],[37],[44]  
Cost 3,819 [3],[9],[22],[30],[36] 1,154 [6],[10],[21],[37],[44]  
Fair value $ 3,946 [7],[9],[22],[30],[36] $ 1,199 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.84%    
Spread (as a percent) 5.75% [9],[22],[28],[30] 6.25% [10],[21],[37],[38],[40]  
Principal $ 2,984 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 2,927 [3],[9],[22],[30] (22) [6],[10],[21],[37],[40]  
Fair value $ 2,984 [7],[9],[22],[30] $ (22) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.75% [9],[22],[30] 10.92% [10],[21],[37]  
Spread (as a percent) 5.75% [9],[22],[28],[30] 6.25% [10],[21],[37],[38]  
Principal $ 25,673 [3],[9],[22],[30] $ 26,173 [6],[10],[21],[37]  
Cost 25,349 [3],[9],[22],[30] 25,739 [6],[10],[21],[37]  
Fair value $ 25,673 [7],[9],[22],[30] $ 26,173 [8],[10],[21],[37]  
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.83%    
Spread (as a percent) [9],[22],[28],[30] 5.75%    
Principal [3],[9],[22],[30] $ 9,410    
Cost [3],[9],[22],[30] 9,303    
Fair value [7],[9],[22],[30] $ 9,410    
Investment, Identifier [Axis]: BP Loenbro Holdings Inc. | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.84%    
Spread (as a percent) [9],[22],[28],[30] 5.75%    
Principal [3],[9],[22],[30] $ 14,899    
Cost [3],[9],[22],[30] 14,643    
Fair value [7],[9],[22],[30] 14,899    
Investment, Identifier [Axis]: Barfly Ventures, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [10],[15]   37  
Cost [6],[10],[15]   $ 1,584  
Fair value 0 $ 5,860 [8],[10],[15] 4,140
Investment, Identifier [Axis]: Barfly Ventures, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [10],[15]   7.00%  
Principal [6],[10],[15]   $ 711  
Cost [6],[10],[15]   711  
Fair value $ 0 $ 711 [8],[10],[15] 711
Investment, Identifier [Axis]: Batjer TopCo, LLC | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 4,073 [31],[33] 4,073 [15],[32]  
Cost $ 4,095 [3],[31],[33] $ 4,095 [6],[15],[32]  
Fair value 8,750 [7],[31],[33] $ 5,160 [8],[15],[32] 6,150
Investment, Identifier [Axis]: Batjer TopCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [15]   10.00%  
Principal 0 [3],[29],[33] $ 450 [6],[15]  
Cost (2) [3],[29],[33] 446 [6],[15]  
Fair value 0 [7],[29],[33] $ 446 [8],[15] 0
Investment, Identifier [Axis]: Batjer TopCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15]   10.00%  
Principal 0 [3],[29],[33] $ 270 [6],[15]  
Cost 0 [3],[29],[33] 270 [6],[15]  
Fair value $ 0 [7],[29],[33] $ 270 [8],[15] 270
Investment, Identifier [Axis]: Batjer TopCo, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.00% [33] 10.00% [15]  
Principal $ 9,945 [3],[33] $ 10,575 [6],[15]  
Cost 9,921 [3],[33] 10,529 [6],[15]  
Fair value $ 9,945 [7],[33] $ 10,529 [8],[15] 10,575
Investment, Identifier [Axis]: Behavior Development Group Holdings | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 300    
Cost [3],[9],[22] $ 300    
Fair value [7],[9],[22] $ 300    
Investment, Identifier [Axis]: Behavior Development Group Holdings | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 6.00%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (22)    
Fair value [7],[9],[22],[29],[30] $ (22)    
Investment, Identifier [Axis]: Behavior Development Group Holdings | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.70%    
Spread (as a percent) [9],[22],[28],[30] 6.00%    
Principal [3],[9],[22],[30] $ 9,596    
Cost [3],[9],[22],[30] 9,454    
Fair value [7],[9],[22],[30] $ 9,454    
Investment, Identifier [Axis]: Berry Aviation, Inc. | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 286,109 [9],[22],[45] 286,109 [10],[21]  
Cost $ 286 [3],[9],[22],[45] $ 286 [6],[10],[21]  
Fair value $ 0 [7],[9],[22],[45] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: Berry Aviation, Inc. | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 122,416 [9],[22],[45] 122,416 [10],[21],[46]  
Cost $ 0 [3],[9],[22],[45] $ 0 [6],[10],[21],[46]  
Fair value $ 0 [7],[9],[22],[45] $ 0 [8],[10],[21],[46]  
Investment, Identifier [Axis]: Berry Aviation, Inc. | Preferred Member Units 3      
Schedule of Investments [Line Items]      
Units (in shares) 1,548,387 [9],[22],[45] 1,548,387 [10],[21],[46]  
Cost $ 0 [3],[9],[22],[45] $ 0 [6],[10],[21],[46]  
Fair value $ 0 [7],[9],[22],[45] 0 [8],[10],[21],[46]  
Investment, Identifier [Axis]: Bettercloud, Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[33] 69    
Cost [3],[9],[33] $ 16,890    
Fair value $ 15,690 [7],[9],[33] 0  
Investment, Identifier [Axis]: Bettercloud, Inc. | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [9],[30],[33],[36] 12.07%    
Spread (as a percent) [9],[28],[30],[33],[36] 8.25%    
PIK Rate [9],[24],[30],[33],[36] 12.07%    
Principal [3],[9],[30],[33],[36] $ 6,017    
Cost [3],[9],[30],[33],[36] 6,017    
Fair value $ 6,017 [7],[9],[30],[33],[36] $ 0  
Investment, Identifier [Axis]: Bettercloud, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   10.25%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (48)  
Fair value [8],[10],[21],[37],[40]   $ (48)  
Investment, Identifier [Axis]: Bettercloud, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   15.76%  
Spread (as a percent) [10],[21],[37],[38]   10.25%  
PIK Rate [10],[21],[25],[37]   9.25%  
Principal [6],[10],[21],[37]   $ 31,792  
Cost [6],[10],[21],[37]   31,484  
Fair value [8],[10],[21],[37]   $ 23,984  
Investment, Identifier [Axis]: Binswanger Enterprises, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   1,050,000  
Cost [6],[10],[21]   $ 1,050  
Fair value [8],[10],[21]   $ 650  
Investment, Identifier [Axis]: Bluestem Brands, Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 723,184 [16],[22] 723,184 [17],[21]  
Cost $ 1 [3],[16],[22] $ 1 [6],[17],[21]  
Fair value $ 0 [7],[16],[22] $ 0 [8],[17],[21]  
Investment, Identifier [Axis]: Bluestem Brands, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.49% [16],[22],[26],[30] 13.17% [17],[21],[37]  
Spread (as a percent) 8.50% [16],[22],[26],[28],[30] 8.50% [17],[21],[37],[38]  
PIK Rate 11.49% [16],[22],[24],[26],[30] 12.17% [17],[21],[25],[37]  
Principal $ 202 [3],[16],[22],[26],[30] $ 202 [6],[17],[21],[37]  
Cost 129 [3],[16],[22],[26],[30] 130 [6],[17],[21],[37]  
Fair value $ 239 [7],[16],[22],[26],[30] $ 170 [8],[17],[21],[37]  
Investment, Identifier [Axis]: Bluestem Brands, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.25% [16],[22],[26],[30] 15.00% [17],[21],[37]  
Spread (as a percent) 7.50% [16],[22],[26],[28],[30] 7.50% [17],[21],[37],[38]  
PIK Rate 13.25% [16],[22],[24],[26],[30] 14.75% [17],[21],[25],[37]  
Principal $ 2,780 [3],[16],[22],[26],[30] $ 3,083 [6],[17],[21],[37]  
Cost 2,780 [3],[16],[22],[26],[30] 3,083 [6],[17],[21],[37]  
Fair value $ 182 [7],[16],[22],[26],[30] $ 2,605 [8],[17],[21],[37]  
Investment, Identifier [Axis]: Bluestem Brands, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.49% [16],[22],[26],[30] 13.17% [17],[21],[37]  
Spread (as a percent) 8.50% [16],[22],[26],[28],[30] 8.50% [17],[21],[37],[38]  
PIK Rate 11.49% [16],[22],[24],[26],[30] 12.17% [17],[21],[25],[37]  
Principal $ 4,183 [3],[16],[22],[26],[30] $ 4,183 [6],[17],[21],[37]  
Cost 3,961 [3],[16],[22],[26],[30] 3,961 [6],[17],[21],[37]  
Fair value $ 0 [7],[16],[22],[26],[30] $ 3,535 [8],[17],[21],[37]  
Investment, Identifier [Axis]: Bluestem Brands, Inc. | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 163,295 [16],[22],[43] 163,295 [17],[21],[27]  
Cost $ 1,036 [3],[16],[22],[43] $ 1,036 [6],[17],[21],[27]  
Fair value $ 0 [7],[16],[22],[43] $ 0 [8],[17],[21],[27]  
Investment, Identifier [Axis]: Boccella Precast Products LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,160,000 [23],[31] 2,160,000 [20]  
Cost $ 2,256 [3],[23],[31] $ 2,256 [6],[20]  
Fair value $ 2,820 [7],[23],[31] $ 310 [8],[20] 1,990
Investment, Identifier [Axis]: Boccella Precast Products LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% [23] 10.00%  
Principal [3],[23] $ 256    
Cost [3],[23] 256    
Fair value $ 256 [7],[23] $ 266 320
Investment, Identifier [Axis]: Boccella Precast Products LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [20]   10.00%  
Principal [6],[20]   $ 320  
Cost [6],[20]   320  
Fair value [8],[20]   $ 266  
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Class B Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 140,000 [31],[33] 140,000 [15],[32]  
Total Rate 8.00% [31],[33] 8.00% [15],[32]  
Cost $ 14,000 [3],[31],[33] $ 14,000 [6],[15],[32]  
Fair value $ 31,190 [7],[31],[33] 30,520 [8],[15],[32] 31,020
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [30],[33],[47] 11.10%    
Spread (as a percent) [28],[30],[33],[47] 7.22%    
Principal [3],[30],[33],[47] $ 101,046    
Cost [3],[30],[33],[47] 100,803    
Fair value [7],[30],[33],[47] $ 101,046    
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [6],[15],[40]   0  
Cost [6],[15],[40]   0  
Fair value [8],[15],[40]   $ 0  
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 11.10% 12.55%  
Spread (as a percent) 7.22% 7.99%  
Fair value $ 101,046 $ 101,643 96,556
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value 0 0 0
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Bolder Panther Group, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15],[37],[48]   12.55%  
Spread (as a percent) [15],[37],[38],[48]   7.99%  
Principal [6],[15],[37],[48]   $ 101,643  
Cost [6],[15],[37],[48]   101,263  
Fair value [8],[15],[37],[48]   $ 101,643  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 571 [9],[11],[18],[22] 571 [10],[13],[19],[21]  
Cost $ 0 [3],[9],[11],[18],[22] $ 0 [6],[10],[13],[19],[21]  
Fair value $ 0 [7],[9],[11],[18],[22] $ 0 [8],[10],[13],[19],[21]  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 571 [9],[11],[18],[22] 571 [10],[13],[19],[21]  
Cost $ 571 [3],[9],[11],[18],[22] $ 571 [6],[10],[13],[19],[21]  
Fair value $ 550 [7],[9],[11],[18],[22] $ 500 [8],[10],[13],[19],[21]  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.89% [9],[11],[18],[22],[30] 11.65% [10],[13],[19],[21],[37]  
Spread (as a percent) 5.75% [9],[11],[18],[22],[28],[30] 7.00% [10],[13],[19],[21],[37],[38]  
Principal $ 571 [3],[9],[11],[18],[22],[30] $ 571 [6],[10],[13],[19],[21],[37]  
Cost 557 [3],[9],[11],[18],[22],[30] 552 [6],[10],[13],[19],[21],[37]  
Fair value $ 571 [7],[9],[11],[18],[22],[30] $ 571 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.59% [9],[11],[18],[22],[30] 10.74% [10],[13],[19],[21],[37]  
Spread (as a percent) 5.75% [9],[11],[18],[22],[28],[30] 6.00% [10],[13],[19],[21],[37],[38]  
Principal $ 1,396 [3],[9],[11],[18],[22],[30] $ 6,341 [6],[10],[13],[19],[21],[37]  
Cost 1,369 [3],[9],[11],[18],[22],[30] 6,256 [6],[10],[13],[19],[21],[37]  
Fair value $ 1,396 [7],[9],[11],[18],[22],[30] $ 6,341 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 8.89% [9],[11],[18],[22],[30] 12.74% [10],[13],[19],[21],[37]  
Spread (as a percent) 4.75% [9],[11],[18],[22],[28],[30] 8.00% [10],[13],[19],[21],[37],[38]  
Principal $ 6,277 [3],[9],[11],[18],[22],[30] $ 6,341 [6],[10],[13],[19],[21],[37]  
Cost 6,218 [3],[9],[11],[18],[22],[30] 6,256 [6],[10],[13],[19],[21],[37]  
Fair value $ 6,277 [7],[9],[11],[18],[22],[30] $ 6,341 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Bond Brand Loyalty ULC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 10.89%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 6.75%    
Principal [3],[9],[11],[18],[22],[30] $ 6,277    
Cost [3],[9],[11],[18],[22],[30] 6,218    
Fair value [7],[9],[11],[18],[22],[30] $ 6,277    
Investment, Identifier [Axis]: Brainworks Software, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 14.75% [9],[22],[26],[30],[34] 15.25% [10],[21],[35],[37],[39]  
Spread (as a percent) 7.25% [9],[22],[26],[28],[30],[34] 7.25% [10],[21],[35],[37],[38],[39]  
Principal $ 761 [3],[9],[22],[26],[30],[34] $ 761 [6],[10],[21],[35],[37],[39]  
Cost 761 [3],[9],[22],[26],[30],[34] 761 [6],[10],[21],[35],[37],[39]  
Fair value $ 0 [7],[9],[22],[26],[30],[34] $ 761 [8],[10],[21],[35],[37],[39]  
Investment, Identifier [Axis]: Brainworks Software, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.75% [9],[22],[26],[30],[34] 15.25% [10],[21],[35],[37],[39]  
Spread (as a percent) 7.25% [9],[22],[26],[28],[30],[34] 7.25% [10],[21],[35],[37],[38],[39]  
Principal $ 7,056 [3],[9],[22],[26],[30],[34] $ 7,056 [6],[10],[21],[35],[37],[39]  
Cost 7,056 [3],[9],[22],[26],[30],[34] 7,056 [6],[10],[21],[35],[37],[39]  
Fair value $ 0 [7],[9],[22],[26],[30],[34] $ 750 [8],[10],[21],[35],[37],[39]  
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [15],[32]   2,950  
Cost [6],[15],[32]   $ 4,280  
Fair value   4,680 [8],[15],[32] 5,620
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 2,950    
Cost [3],[31],[33] $ 4,280    
Fair value $ 3,460 [7],[31],[33] 4,680  
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 312    
Total Rate [31],[33] 15.00%    
PIK Rate [24],[31],[33] 15.00%    
Cost [3],[31],[33] $ 336    
Fair value $ 336 [7],[31],[33] $ 0  
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.98% [30],[33] 14.66% [15],[37]  
Spread (as a percent) 10.00% [28],[30],[33] 10.00% [15],[37],[38]  
Principal $ 5,016 [3],[30],[33] $ 5,016 [6],[15],[37]  
Cost 5,016 [3],[30],[33] 5,016 [6],[15],[37]  
Fair value $ 5,016 [7],[30],[33] $ 5,016 [8],[15],[37] 5,498
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 17,742 [33],[45] 17,742 [15],[32],[46]  
Cost $ 1,000 [3],[33],[45] $ 1,000 [6],[15],[32],[46]  
Fair value $ 0 [7],[33],[45] 0 [8],[15],[32],[46] 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value   0 8,813
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value   $ 0 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 82 [33],[43] 82 [15],[27]  
Cost $ 2,132 [3],[33],[43] $ 2,132 [6],[15],[27]  
Fair value 0 [7],[33],[43] 0 [8],[15],[27]  
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Warrants 1      
Schedule of Investments [Line Items]      
Fair value 0 0 1,808
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation | Warrants 2      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 0 2,482
Investment, Identifier [Axis]: Brightwood Capital Fund Investments | LP Interests (Brightwood Capital Fund III, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 1.59% [11],[12],[22],[49] 1.59% [13],[14],[21],[50]  
Cost $ 4,983 [3],[11],[12],[22],[49] $ 5,415 [6],[13],[14],[21],[50]  
Fair value $ 2,692 [7],[11],[12],[22],[49] $ 3,120 [8],[13],[14],[21],[50]  
Investment, Identifier [Axis]: Brightwood Capital Fund Investments | LP Interests (Brightwood Capital Fund IV, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.59% [11],[12],[22],[31],[49] 0.59% [13],[14],[21],[32],[50]  
Cost $ 3,202 [3],[11],[12],[22],[31],[49] $ 4,014 [6],[13],[14],[21],[32],[50]  
Fair value $ 3,224 [7],[11],[12],[22],[31],[49] $ 4,016 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: Brightwood Capital Fund Investments | LP Interests (Brightwood Capital Fund V, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.72% [11],[12],[22],[31],[49] 0.72% [13],[14],[21],[32],[50]  
Cost $ 4,900 [3],[11],[12],[22],[31],[49] $ 3,500 [6],[13],[14],[21],[32],[50]  
Fair value $ 5,146 [7],[11],[12],[22],[31],[49] $ 3,809 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: Buca C, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 6 [23] 6 [20]  
Total Rate 6.00% [23] 6.00% [20]  
PIK Rate 6.00% [23],[24] 6.00% [20],[25]  
Cost $ 4,770 [3],[23] $ 4,770 [6],[20]  
Fair value $ 0 [7],[23] $ 0 [8],[20] 0
Investment, Identifier [Axis]: Buca C, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00% [23],[26],[34] 15.00% [20],[35],[39]  
PIK Rate 15.00% [23],[24],[26],[34] 15.00% [20],[25],[35],[39]  
Principal $ 8,380 [3],[23],[26],[34] $ 6,437 [6],[20],[35],[39]  
Cost 6,282 [3],[23],[26],[34] 5,652 [6],[20],[35],[39]  
Fair value $ 0 [7],[23],[26],[34] $ 0 [8],[20],[35],[39] 12,144
Investment, Identifier [Axis]: Buca C, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.00% [23],[26],[34] 15.00% [20],[39]  
PIK Rate 15.00% [23],[24],[26],[34] 15.00% [20],[25],[39]  
Principal $ 18 [3],[23],[26],[34] $ 15 [6],[20],[39]  
Cost 0 [3],[23],[26],[34] 0 [6],[20],[39]  
Fair value $ 0 [7],[23],[26],[34] $ 0 [8],[20],[39] 0
Investment, Identifier [Axis]: Buca C, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 15.00% [23],[26],[34] 15.00% [20],[35],[39]  
PIK Rate 15.00% [23],[24],[26],[34] 15.00% [20],[25],[35],[39]  
Principal $ 11,112 [3],[23],[26],[34] $ 9,554 [6],[20],[35],[39]  
Cost 5,862 [3],[23],[26],[34] 5,862 [6],[20],[35],[39]  
Fair value $ 0 [7],[23],[26],[34] $ 0 [8],[20],[35],[39] 0
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   5.00%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (11)  
Fair value [8],[10],[21],[37],[40]   $ 0  
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   9.46%  
Spread (as a percent) [10],[21],[37],[38]   5.00%  
Principal [6],[10],[21],[37]   $ 17,915  
Cost [6],[10],[21],[37]   17,755  
Fair value [8],[10],[21],[37]   $ 17,915  
Investment, Identifier [Axis]: CAI Software LLC | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) [21]   2,142,167  
Cost [6],[21]   $ 2,142  
Fair value [8],[21]   $ 2,417  
Investment, Identifier [Axis]: CAI Software LLC | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) [21]   596,176  
Cost [6],[21]   $ 0  
Fair value [8],[21]   $ 0  
Investment, Identifier [Axis]: CBT Nuggets, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 416 [31],[33] 416 [15],[32]  
Cost $ 1,300 [3],[31],[33] $ 1,300 [6],[15],[32]  
Fair value $ 47,930 [7],[31],[33] 49,540 [8],[15],[32] 50,130
Investment, Identifier [Axis]: CGMS Parent LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [23] 2,000    
Cost [3],[23] $ 10,000    
Fair value 10,000 [7],[23] 0  
Investment, Identifier [Axis]: CGMS Parent LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (39)    
Fair value [7],[23],[29] $ (39)    
Investment, Identifier [Axis]: CGMS Parent LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Fair value $ 24,754 0  
Investment, Identifier [Axis]: CGMS Parent LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value $ (39) $ 0  
Investment, Identifier [Axis]: CGMS Parent LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 25,000    
Cost [3],[23] 24,754    
Fair value [7],[23] $ 24,754    
Investment, Identifier [Axis]: CQ Fluency, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.75% [9],[22],[28],[29],[30] 6.75% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (28) [3],[9],[22],[29],[30] (47) [6],[10],[21],[37],[40]  
Fair value $ (28) [7],[9],[22],[29],[30] $ (47) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: CQ Fluency, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.52%    
Spread (as a percent) 6.75% [9],[22],[28],[30] 6.75% [10],[21],[37],[38],[40]  
Principal $ 10,266 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 10,133 [3],[9],[22],[30] (47) [6],[10],[21],[37],[40]  
Fair value $ 10,266 [7],[9],[22],[30] $ (47) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: CQ Fluency, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.18%  
Spread (as a percent) [10],[21],[37],[38]   6.75%  
Principal [6],[10],[21],[37]   $ 10,828  
Cost [6],[10],[21],[37]   10,600  
Fair value [8],[10],[21],[37]   $ 10,754  
Investment, Identifier [Axis]: CRC Evans USA Bidco, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30],[36] 10.87%    
Spread (as a percent) [9],[11],[18],[22],[28],[30],[36] 6.75%    
Principal [3],[9],[11],[18],[22],[30],[36] $ 6,838    
Cost [3],[9],[11],[18],[22],[30],[36] 6,676    
Fair value [7],[9],[11],[18],[22],[30],[36] $ 6,838    
Investment, Identifier [Axis]: CRC Evans USA Bidco, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[11],[18],[22],[28],[29] 6.75%    
Principal [3],[9],[11],[18],[22],[29],[30] $ 0    
Cost [3],[9],[11],[18],[22],[29] (280)    
Fair value [7],[9],[11],[18],[22],[29] $ (280)    
Investment, Identifier [Axis]: CRC Evans USA Bidco, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 10.70%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 6.75%    
Principal [3],[9],[11],[18],[22],[30] $ 9,542    
Cost [3],[9],[11],[18],[22],[30] 9,355    
Fair value [7],[9],[11],[18],[22],[30] $ 9,355    
Investment, Identifier [Axis]: CRC Evans USA Bidco, Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 10.83%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 6.75%    
Principal [3],[9],[11],[18],[22],[30] $ 14,949    
Cost [3],[9],[11],[18],[22],[30] 14,614    
Fair value [7],[9],[11],[18],[22],[30] 14,949    
Investment, Identifier [Axis]: Café Brazil, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [15],[32]   1,233  
Cost [6],[15],[32]   $ 1,742  
Fair value $ 0 $ 1,200 [8],[15],[32] 1,980
Investment, Identifier [Axis]: California Splendor Holdings LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 8,671 [31],[33] 8,671 [15],[32]  
Total Rate 15.00% [31],[33] 15.00% [15],[32]  
PIK Rate 15.00% [24],[31],[33] 15.00% [15],[25],[32]  
Cost $ 12,569 [3],[31],[33] $ 10,909 [6],[15],[32]  
Fair value 12,569 [7],[31],[33] 10,909 [8],[15],[32]  
Investment, Identifier [Axis]: California Splendor Holdings LLC | Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value $ 12,801 $ 22,215 15,695
Investment, Identifier [Axis]: California Splendor Holdings LLC | Preferred Member Units 1.2      
Schedule of Investments [Line Items]      
Total Rate 15.00% 15.00%  
PIK Rate 15.00% 15.00%  
Fair value $ 12,569 $ 10,909 4,601
Investment, Identifier [Axis]: California Splendor Holdings LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 8,729 [31],[33] 8,729 [15],[32]  
Cost $ 16,402 [3],[31],[33] $ 16,402 [6],[15],[32]  
Fair value 12,801 [7],[31],[33] $ 22,215 [8],[15],[32]  
Investment, Identifier [Axis]: California Splendor Holdings LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [15]   14.00%  
PIK Rate [15],[25]   4.00%  
Principal 0 [3],[29],[33] $ 1,528 [6],[15]  
Cost (11) [3],[29],[33] 1,506 [6],[15]  
Fair value $ (11) [7],[29],[33] $ 1,506 [8],[15]  
Investment, Identifier [Axis]: California Splendor Holdings LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 14.00% 14.00%  
PIK Rate   4.00%  
Fair value $ 25,638 $ 28,465 27,655
Investment, Identifier [Axis]: California Splendor Holdings LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate   14.00%  
PIK Rate   4.00%  
Fair value $ (11) $ 1,506 0
Investment, Identifier [Axis]: California Splendor Holdings LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.00% [33] 14.00% [15]  
PIK Rate [15],[25]   4.00%  
Principal $ 25,800 [3],[33] $ 28,908 [6],[15]  
Cost 25,776 [3],[33] 28,853 [6],[15]  
Fair value $ 25,638 [7],[33] $ 28,465 [8],[15]  
Investment, Identifier [Axis]: Career Team Holdings, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 516,617 [23] 450,000 [20]  
Cost $ 5,166 [3],[23] $ 4,500 [6],[20]  
Fair value $ 5,370 [7],[23] $ 4,740 [8],[20] 4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [20],[37]   10.56%  
Spread (as a percent) 6.00% [23],[28],[29],[30] 6.00% [20],[37],[38]  
Principal $ 0 [3],[23],[29],[30] $ 900 [6],[20],[37]  
Cost (45) [3],[23],[29],[30] 887 [6],[20],[37]  
Fair value $ (45) [7],[23],[29],[30] $ 887 [8],[20],[37] 881
Investment, Identifier [Axis]: Career Team Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 12.50% [20]  
Principal $ 21,892 [3],[23] $ 19,440 [6],[20]  
Cost 21,551 [3],[23] 19,364 [6],[20]  
Fair value $ 21,551 [7],[23] $ 19,364 [8],[20] 19,906
Investment, Identifier [Axis]: CaseWorthy, Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 325,408 [9],[22] 245,926 [10],[21]  
Cost $ 325 [3],[9],[22] $ 246 [6],[10],[21]  
Fair value $ 710 [7],[9],[22] $ 490 [8],[10],[21]  
Investment, Identifier [Axis]: CenterPeak Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,310 [23],[31] 3,310 [20],[32]  
Cost $ 3,635 [3],[23],[31] $ 3,635 [6],[20],[32]  
Fair value $ 24,340 [7],[23],[31] 14,550 [8],[20],[32]  
Investment, Identifier [Axis]: CenterPeak Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [23] 15.00%    
Principal $ 1,800 [3],[23] 0 [6],[20],[40]  
Cost 1,794 [3],[23] (12) [6],[20],[40]  
Fair value $ 1,800 [7],[23] $ 0 [8],[20],[40]  
Investment, Identifier [Axis]: CenterPeak Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.00% [23] 15.00% [20]  
Principal $ 25,107 [3],[23] $ 21,507 [6],[20]  
Cost 25,103 [3],[23] 21,418 [6],[20]  
Fair value $ 25,107 [7],[23] $ 21,507 [8],[20]  
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 13,883 [33] 13,883 [15]  
Cost $ 6,386 [3],[33] $ 6,386 [6],[15]  
Fair value $ 42,710 [7],[33] $ 12,410 [8],[15] 11,040
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 8.00% [28],[29],[30],[33] 9.00% [15],[37],[38],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost 0 [3],[29],[30],[33] 0 [6],[15],[37],[40]  
Fair value $ 0 [7],[29],[30],[33] $ 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.98% [30],[33] 13.66% [15],[37]  
Spread (as a percent) 8.00% [28],[30],[33] 9.00% [15],[37],[38]  
Principal $ 24,085 [3],[30],[33] $ 25,534 [6],[15],[37]  
Cost 24,058 [3],[30],[33] 25,492 [6],[15],[37]  
Fair value $ 24,085 [7],[30],[33] $ 25,534 [8],[15],[37] 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Spread (as a percent)   10.00%  
Fair value   $ 0 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Fair value   $ 0 17,574
Investment, Identifier [Axis]: Chamberlin Holding LLC | Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 4,347 [31],[33] 4,347 [15],[32]  
Cost $ 11,440 [3],[31],[33] $ 11,440 [6],[15],[32]  
Fair value 35,530 [7],[31],[33] 33,110 [8],[15],[32] 29,320
Investment, Identifier [Axis]: Chamberlin Holding LLC | Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 35,530 33,110  
Investment, Identifier [Axis]: Chamberlin Holding LLC | Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value $ 4,170 $ 3,550  
Investment, Identifier [Axis]: Chamberlin Holding LLC | Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 1,047,146 [31],[33],[45] 1,047,146 [15],[32],[46]  
Cost $ 1,773 [3],[31],[33],[45] $ 1,773 [6],[15],[32],[46]  
Fair value $ 4,170 [7],[31],[33],[45] $ 3,550 [8],[15],[32],[46] 2,860
Investment, Identifier [Axis]: Chamberlin Holding LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.00% [28],[29],[30],[33] 6.00% [15],[37],[38],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost (39) [3],[29],[30],[33] (105) [6],[15],[37],[40]  
Fair value $ 0 [7],[29],[30],[33] 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: Chamberlin Holding LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.00%    
Fair value $ 0 0  
Investment, Identifier [Axis]: Chamberlin Holding LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Spread (as a percent) 8.00%    
Fair value $ 0 15,620  
Investment, Identifier [Axis]: Chamberlin Holding LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate 11.99%    
Spread (as a percent) 8.00%    
Fair value $ 42,020 $ 0  
Investment, Identifier [Axis]: Chamberlin Holding LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.99% [30],[33] 12.74% [15],[37]  
Spread (as a percent) 8.00% [28],[30],[33] 8.00% [15],[37],[38]  
Principal $ 42,020 [3],[30],[33] $ 15,620 [6],[15],[37]  
Cost 41,781 [3],[30],[33] 15,619 [6],[15],[37]  
Fair value $ 42,020 [7],[30],[33] $ 15,620 [8],[15],[37] 15,620
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.84% [9],[22],[30],[36] 11.53% [10],[21],[37],[44]  
Spread (as a percent) 6.75% [9],[22],[28],[30],[36] 7.00% [10],[21],[37],[38],[44]  
Principal $ 7,250 [3],[9],[22],[30],[36] $ 5,075 [6],[10],[21],[37],[44]  
Cost 7,146 [3],[9],[22],[30],[36] 4,960 [6],[10],[21],[37],[44]  
Fair value $ 7,250 [7],[9],[22],[30],[36] $ 4,830 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.84% [9],[22],[30] 11.93% [10],[21],[37]  
Spread (as a percent) 6.75% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 35,794 [3],[9],[22],[30] $ 36,167 [6],[10],[21],[37]  
Cost 35,634 [3],[9],[22],[30] 35,856 [6],[10],[21],[37]  
Fair value $ 35,794 [7],[9],[22],[30] $ 34,431 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.84% [9],[22],[30] 11.93% [10],[21],[37]  
Spread (as a percent) 6.75% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 1,983 [3],[9],[22],[30] $ 2,004 [6],[10],[21],[37]  
Cost 1,974 [3],[9],[22],[30] 1,987 [6],[10],[21],[37]  
Fair value $ 1,983 [7],[9],[22],[30] $ 1,908 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 10.84% [9],[22],[30] 11.93% [10],[21],[37]  
Spread (as a percent) 6.75% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 4,793 [3],[9],[22],[30] $ 4,843 [6],[10],[21],[37]  
Cost 4,758 [3],[9],[22],[30] 4,774 [6],[10],[21],[37]  
Fair value $ 4,793 [7],[9],[22],[30] $ 4,610 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Charps, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,829 [31],[33] 1,829 [15],[32]  
Cost $ 1,963 [3],[31],[33] $ 1,963 [6],[15],[32]  
Fair value $ 16,020 [7],[31],[33] $ 15,580 [8],[15],[32] 15,690
Investment, Identifier [Axis]: Charps, LLC | Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.00% [33] 10.00% [15]  
Principal $ 5,694 [3],[33] $ 5,694 [6],[15]  
Cost 5,267 [3],[33] 5,166 [6],[15]  
Fair value $ 5,694 [7],[33] $ 5,694 [8],[15] 5,694
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 717 [31],[33] 717 [15],[32]  
Cost $ 7,280 [3],[31],[33] $ 7,280 [6],[15],[32]  
Fair value 14,120 [7],[31],[33] 10,990 [8],[15],[32] 5,200
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 14,120 10,990  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value $ 1,270 $ 950  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 800 [33],[45] 800 [15],[46]  
Cost $ 509 [3],[33],[45] $ 509 [6],[15],[46]  
Fair value 1,270 [7],[33],[45] 950 [8],[15],[46] 1,129
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost 0 [3],[29],[33] 0 [6],[15],[40]  
Fair value 0 [7],[29],[33] 0 [8],[15],[40] 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Fair value 0 0  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value $ 0 6,760  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Fair value $ 9,480 0  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Fair value $ 929 $ 973  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% [33] 9.00% [15]  
Principal $ 9,480 [3],[33] $ 6,760 [6],[15]  
Cost 9,405 [3],[33] 6,724 [6],[15]  
Fair value $ 9,480 [7],[33] $ 6,760 [8],[15] 8,422
Investment, Identifier [Axis]: Clad-Rex Steel, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.00% [33] 10.00% [15]  
Principal $ 929 [3],[33] $ 973 [6],[15]  
Cost 922 [3],[33] 965 [6],[15]  
Fair value 929 [7],[33] 973 [8],[15] 1,004
Investment, Identifier [Axis]: Clarius BIGS, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Principal 2,628 [3],[9],[22],[26],[34] 2,649 [6],[10],[21],[35],[39]  
Cost 2,628 [3],[9],[22],[26],[34] 2,649 [6],[10],[21],[35],[39]  
Fair value $ 8 [7],[9],[22],[26],[34] $ 19 [8],[10],[21],[35],[39]  
Investment, Identifier [Axis]: Classic H&G Holdings, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 154 [23] 154 [20],[32]  
Cost $ 0 [3],[23] $ 0 [6],[20],[32]  
Fair value $ 2,040 [7],[23] $ 2,850 [8],[20],[32] 16,000
Investment, Identifier [Axis]: Classic H&G Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent)   6.00%  
Fair value   $ 0 4,560
Investment, Identifier [Axis]: Classic H&G Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value   $ 0 19,274
Investment, Identifier [Axis]: Cody Pools, Inc. | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 587 [31],[33],[45] 587 [15],[32],[46]  
Cost $ 8,317 [3],[31],[33],[45] $ 8,317 [6],[15],[32],[46]  
Fair value 65,060 [7],[31],[33],[45] 67,810 [8],[15],[32],[46] 72,470
Investment, Identifier [Axis]: Cody Pools, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost (82) [3],[29],[33] (12) [6],[15],[40]  
Fair value $ 0 [7],[29],[33] $ 0 [8],[15],[40] 0
Investment, Identifier [Axis]: Cody Pools, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% [33] 12.50% [15]  
Principal $ 34,901 [3],[33] $ 39,227 [6],[15]  
Cost 34,336 [3],[33] 39,207 [6],[15]  
Fair value $ 34,901 [7],[33] $ 39,227 [8],[15] 42,073
Investment, Identifier [Axis]: Colonial Electric Company LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 17,280 [31],[33] 17,280 [15],[32]  
Cost $ 7,680 [3],[31],[33] $ 7,680 [6],[15],[32]  
Fair value 16,830 [7],[31],[33] 13,570 [8],[15],[32]  
Investment, Identifier [Axis]: Colonial Electric Company LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Fair value   0 2,400
Investment, Identifier [Axis]: Colonial Electric Company LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Fair value   13,570 7,680
Investment, Identifier [Axis]: Colonial Electric Company LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost 0 [3],[29],[33] 0 [6],[15],[40]  
Fair value $ 0 [7],[29],[33] $ 0 [8],[15],[40] 0
Investment, Identifier [Axis]: Colonial Electric Company LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.00% [33] 12.00% [15]  
Principal $ 8,779 [3],[33] $ 14,310 [6],[15]  
Cost 8,773 [3],[33] 14,272 [6],[15]  
Fair value $ 8,779 [7],[33] $ 14,310 [8],[15] 21,627
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,250 [33] 2,250 [15]  
Cost $ 3,520 [3],[33] $ 3,520 [6],[15]  
Fair value $ 7,650 [7],[33] $ 11,260 [8],[15] 14,450
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.98% [33] 13.66% [15],[37]  
Spread (as a percent) [15],[37],[38]   9.00%  
Principal $ 4,037 [3],[33] $ 2,955 [6],[15],[37]  
Cost 4,031 [3],[33] 2,903 [6],[15],[37]  
Fair value $ 4,031 [7],[33] 2,903 [8],[15],[37]  
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.00%    
Fair value $ 0 $ 2,903  
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Spread (as a percent)   9.00%  
Fair value   $ 0 0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate   13.66%  
Spread (as a percent)   9.00%  
Fair value   $ 2,903 3,454
Investment, Identifier [Axis]: CompareNetworks Topco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.98%    
Fair value $ 4,031 $ 0  
Investment, Identifier [Axis]: Compass Systems & Sales, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 7,454 [33] 7,454 [15]  
Cost $ 7,454 [3],[33] $ 7,454 [6],[15]  
Fair value 7,180 [7],[33] 7,450 [8],[15] 7,454
Investment, Identifier [Axis]: Compass Systems & Sales, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost (15) [3],[29],[33] (21) [6],[15],[40]  
Fair value $ (15) [7],[29],[33] $ (21) [8],[15],[40] 0
Investment, Identifier [Axis]: Compass Systems & Sales, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50% [33] 13.50% [15]  
Principal $ 17,200 [3],[33] $ 17,200 [6],[15]  
Cost 17,100 [3],[33] 17,067 [6],[15]  
Fair value $ 16,961 [7],[33] $ 17,067 [8],[15] 17,034
Investment, Identifier [Axis]: Computer Data Source, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.28% [9],[22],[30],[36] 12.93% [10],[21],[37],[44]  
Spread (as a percent) 8.25% [9],[22],[28],[30],[36] 8.25% [10],[21],[37],[38],[44]  
PIK Rate [9],[22],[24],[30],[36] 12.02%    
Principal $ 8,830 [3],[9],[22],[30],[36] $ 7,837 [6],[10],[21],[37],[44]  
Cost 8,800 [3],[9],[22],[30],[36] 7,754 [6],[10],[21],[37],[44]  
Fair value $ 8,393 [7],[9],[22],[30],[36] $ 7,341 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Computer Data Source, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 12.02%    
Spread (as a percent) 8.25% [9],[22],[28],[30] 8.25% [10],[21],[37],[38],[40]  
PIK Rate [9],[22],[24],[30] 12.02%    
Principal $ 21,410 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 21,367 [3],[9],[22],[30] (113) [6],[10],[21],[37],[40]  
Fair value $ 20,352 [7],[9],[22],[30] $ (113) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Computer Data Source, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.92%  
Spread (as a percent) [10],[21],[37],[38]   8.25%  
Principal [6],[10],[21],[37]   $ 18,968  
Cost [6],[10],[21],[37]   18,850  
Fair value [8],[10],[21],[37]   $ 17,769  
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds | LP Interests (Congruent Credit Opportunities Fund III, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 12.49% [11],[12],[23],[31],[49] 12.49% [13],[14],[20],[32],[50]  
Cost $ 308 [3],[11],[12],[23],[31],[49] $ 2,813 [6],[13],[14],[20],[32],[50]  
Fair value $ 24 [7],[11],[12],[23],[31],[49] $ 2,276 [8],[13],[14],[20],[32],[50] 4,352
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 22,304 [11],[18],[23] 22,304 [13],[20]  
Cost $ 12,596 [3],[11],[18],[23] $ 12,596 [6],[13],[20]  
Fair value $ 12,596 [7],[11],[18],[23] $ 12,596 [8],[13],[20] 0
Investment, Identifier [Axis]: Connect Telecommunications Solutions Holdings, Inc. | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00% [11],[18],[23] 13.00% [13],[20]  
Principal $ 24,336 [3],[11],[18],[23] $ 27,577 [6],[13],[20]  
Cost 24,153 [3],[11],[18],[23] 27,315 [6],[13],[20]  
Fair value $ 24,153 [7],[11],[18],[23] $ 27,315 [8],[13],[20] 0
Investment, Identifier [Axis]: Copper Trail Fund Investments | LP Interests (CTMH, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 38.75% [11],[12],[33],[49] 38.75% [13],[14],[15],[50]  
Cost $ 390 [3],[11],[12],[33],[49] $ 500 [6],[13],[14],[15],[50]  
Fair value $ 390 [7],[11],[12],[33],[49] $ 500 [8],[13],[14],[15],[50] 568
Investment, Identifier [Axis]: Core Transformers | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 626,923    
Cost [3],[9],[22] $ 627    
Fair value [7],[9],[22] $ 627    
Investment, Identifier [Axis]: Core Transformers | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (59)    
Fair value [7],[9],[22],[29],[30] $ (59)    
Investment, Identifier [Axis]: Core Transformers | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (59)    
Fair value [7],[9],[22],[29],[30] $ (59)    
Investment, Identifier [Axis]: Core Transformers | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.23%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 6,269    
Cost [3],[9],[22],[30] 6,151    
Fair value [7],[9],[22],[30] $ 6,151    
Investment, Identifier [Axis]: Coregistics Buyer LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.32% [9],[11],[18],[22],[30] 10.39% [10],[13],[19],[21],[37],[44]  
Spread (as a percent) 6.50% [9],[11],[18],[22],[28],[30] 6.00% [10],[13],[19],[21],[37],[38],[44]  
Principal $ 1,669 [3],[9],[11],[18],[22],[30] $ 1,669 [6],[10],[13],[19],[21],[37],[44]  
Cost 1,608 [3],[9],[11],[18],[22],[30] 1,590 [6],[10],[13],[19],[21],[37],[44]  
Fair value $ 1,656 [7],[9],[11],[18],[22],[30] $ 1,639 [8],[10],[13],[19],[21],[37],[44]  
Investment, Identifier [Axis]: Coregistics Buyer LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.34% [9],[11],[18],[22],[30] 10.36% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.50% [9],[11],[18],[22],[28],[30] 6.00% [10],[13],[19],[21],[37],[38]  
Principal $ 10,570 [3],[9],[11],[18],[22],[30] $ 10,704 [6],[10],[13],[19],[21],[37]  
Cost 10,391 [3],[9],[11],[18],[22],[30] 10,474 [6],[10],[13],[19],[21],[37]  
Fair value $ 10,484 [7],[9],[11],[18],[22],[30] $ 10,507 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Coregistics Buyer LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.59% [9],[11],[18],[22],[30] 10.40% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.75% [9],[11],[18],[22],[28],[30] 6.00% [10],[13],[19],[21],[37],[38]  
Principal $ 31,790 [3],[9],[11],[18],[22],[30] $ 7,118 [6],[10],[13],[19],[21],[37]  
Cost 31,236 [3],[9],[11],[18],[22],[30] 6,987 [6],[10],[13],[19],[21],[37]  
Fair value $ 31,678 [7],[9],[11],[18],[22],[30] $ 6,987 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Coregistics Buyer LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 10.37% [9],[11],[18],[22],[30] 10.61% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.50% [9],[11],[18],[22],[28],[30] 6.25% [10],[13],[19],[21],[37],[38]  
Principal $ 7,047 [3],[9],[11],[18],[22],[30] $ 32,031 [6],[10],[13],[19],[21],[37]  
Cost 6,945 [3],[9],[11],[18],[22],[30] 31,313 [6],[10],[13],[19],[21],[37]  
Fair value $ 6,989 [7],[9],[11],[18],[22],[30] $ 30,165 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: Creative Foam Corporation | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22],[30] 10,851    
Cost [3],[9],[22],[30] $ 1,085    
Fair value [7],[9],[22],[30] $ 860    
Investment, Identifier [Axis]: Creative Foam Corporation | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.75% [9],[22],[28],[29],[30] 5.75% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (184) [3],[9],[22],[29],[30] (272) [6],[10],[21],[37],[40]  
Fair value $ (184) [7],[9],[22],[29],[30] $ (272) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Creative Foam Corporation | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.69% [9],[22],[30] 10.11% [10],[21],[37]  
Spread (as a percent) 6.75% [9],[22],[28],[30] 5.75% [10],[21],[37],[38]  
Principal $ 5,531 [3],[9],[22],[30] $ 106,280 [6],[10],[21],[37]  
Cost 5,435 [3],[9],[22],[30] 104,348 [6],[10],[21],[37]  
Fair value $ 5,531 [7],[9],[22],[30] 105,229 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Creative Foam Corporation | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.44%    
Spread (as a percent) [9],[22],[28],[30] 6.75%    
Principal [3],[9],[22],[30] $ 88,683    
Cost [3],[9],[22],[30] 87,428    
Fair value [7],[9],[22],[30] $ 88,683    
Investment, Identifier [Axis]: Cybermedia Technologies, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33] 2,400,000    
Cost [3],[33] $ 2,400    
Fair value $ 6,340 [7],[33] $ 0  
Investment, Identifier [Axis]: Cybermedia Technologies, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 556 [33] 556 [15],[32]  
Cost $ 15,000 [3],[33] $ 15,000 [6],[15],[32]  
Fair value 0 [7],[33] 15,000 [8],[15],[32] 15,000
Investment, Identifier [Axis]: Cybermedia Technologies, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost 0 [3],[29],[33] 0 [6],[15],[40]  
Fair value $ 0 [7],[29],[33] $ 0 [8],[15],[40] 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 27,210 [3],[33] $ 27,300 [6],[15]  
Cost 27,082 [3],[33] 27,116 [6],[15]  
Fair value $ 27,076 [7],[33] $ 27,116 [8],[15] 28,389
Investment, Identifier [Axis]: DMA Industries, LLC | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) 5,944 [23] 5,944 [20]  
Cost $ 5,944 [3],[23] $ 5,944 [6],[20]  
Fair value 9,174 [7],[23] 5,944 [8],[20]  
Investment, Identifier [Axis]: DMA Industries, LLC | Preferred Equity 1.1      
Schedule of Investments [Line Items]      
Fair value $ 9,174 $ 5,944 7,660
Investment, Identifier [Axis]: DMA Industries, LLC | Preferred Equity 1.2      
Schedule of Investments [Line Items]      
Total Rate 15.00% 15.00%  
PIK Rate 15.00% 15.00%  
Fair value $ 5,424 $ 3,240 0
Investment, Identifier [Axis]: DMA Industries, LLC | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) 3,068 [23],[31] 3,068 [20],[32]  
Total Rate 15.00% [23],[31] 15.00% [20],[32]  
PIK Rate 15.00% [23],[24],[31] 15.00% [20],[25],[32]  
Cost $ 3,754 [3],[23],[31] $ 3,240 [6],[20],[32]  
Fair value $ 5,424 [7],[23],[31] $ 3,240 [8],[20],[32]  
Investment, Identifier [Axis]: DMA Industries, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.00% [23] 12.00% [20]  
Principal $ 560 [3],[23] $ 560 [6],[20]  
Cost 556 [3],[23] 555 [6],[20]  
Fair value $ 560 [7],[23] $ 555 [8],[20]  
Investment, Identifier [Axis]: DMA Industries, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 10.00% 12.00%  
Fair value $ 12,800 $ 16,722 18,800
Investment, Identifier [Axis]: DMA Industries, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 10.00% 12.00%  
Fair value $ 560 $ 555 0
Investment, Identifier [Axis]: DMA Industries, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% [23] 12.00% [20]  
Principal $ 12,800 [3],[23] $ 16,800 [6],[20]  
Cost 12,754 [3],[23] 16,722 [6],[20]  
Fair value $ 12,800 [7],[23] $ 16,722 [8],[20]  
Investment, Identifier [Axis]: DTE Enterprises, LLC | Class A Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 776,316 [9],[22] 776,316 [10],[21]  
Total Rate 8.00% [9],[22] 8.00% [10],[21]  
PIK Rate 8.00% [9],[22],[24] 8.00% [10],[21],[25]  
Cost $ 776 [3],[9],[22] $ 776 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: DTE Enterprises, LLC | Class AA Preferred Member Units (non-voting)      
Schedule of Investments [Line Items]      
Total Rate 10.00% [9],[22] 10.00% [10],[21],[32]  
PIK Rate 10.00% [9],[22],[24] 10.00% [10],[21],[25],[32]  
Cost $ 1,316 [3],[9],[22] $ 1,316 [6],[10],[21],[32]  
Fair value $ 0 [7],[9],[22] $ 438 [8],[10],[21],[32]  
Investment, Identifier [Axis]: Dalton US Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 515 [9],[22] 515 [10],[21]  
Cost $ 720 [3],[9],[22] $ 720 [6],[10],[21]  
Fair value $ 650 [7],[9],[22] $ 690 [8],[10],[21]  
Investment, Identifier [Axis]: Datacom, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 9,360 [33] 9,000 [15]  
Cost $ 2,970 [3],[33] $ 2,610 [6],[15]  
Fair value $ 0 [7],[33] $ 240 [8],[15] 70
Investment, Identifier [Axis]: Datacom, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 7.50% [33] 7.50% [15]  
Principal $ 675 [3],[33] $ 495 [6],[15]  
Cost 675 [3],[33] 493 [6],[15]  
Fair value $ 675 [7],[33] $ 493 [8],[15] 447
Investment, Identifier [Axis]: Datacom, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% [33] 10.00% [15]  
Principal $ 7,812 [3],[33] $ 8,082 [6],[15]  
Cost 7,812 [3],[33] 7,947 [6],[15]  
Fair value $ 4,169 [7],[33] $ 7,947 [8],[15] 7,587
Investment, Identifier [Axis]: Digital Products Holdings LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3,857 [31],[33] 3,857 [15],[32]  
Cost $ 9,501 [3],[31],[33] $ 9,501 [6],[15],[32]  
Fair value $ 9,835 [7],[31],[33] $ 9,835 [8],[15],[32] 9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.88% [30],[33] 14.56% [15],[37]  
Spread (as a percent) 10.00% [28],[30],[33] 10.00% [15],[37],[38]  
Principal $ 11,957 [3],[30],[33] $ 12,617 [6],[15],[37]  
Cost 11,943 [3],[30],[33] 12,561 [6],[15],[37]  
Fair value $ 11,338 [7],[30],[33] $ 12,422 [8],[15],[37] 14,690
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc. | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 8,400 [33] 8,400 [15]  
Cost $ 8,400 [3],[33] $ 8,400 [6],[15]  
Fair value $ 19,760 [7],[33] 17,930 [8],[15] 20,740
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [33] 14.00%    
Principal $ 1,785 [3],[33] 0 [6],[15],[40]  
Cost 1,783 [3],[33] (31) [6],[15],[40]  
Fair value $ 1,785 [7],[33] $ 0 [8],[15],[40] 1,233
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.00% [33] 14.00% [15]  
Principal $ 23,082 [3],[33] $ 23,902 [6],[15]  
Cost 23,079 [3],[33] 23,859 [6],[15]  
Fair value $ 23,082 [7],[33] 23,902 [8],[15] 25,543
Investment, Identifier [Axis]: Doral Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33] 13,000    
Cost [3],[33] $ 13,000    
Fair value 15,740 [7],[33] 0  
Investment, Identifier [Axis]: Doral Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[29],[33] 0    
Cost [3],[29],[33] 0    
Fair value $ 0 [7],[29],[33] 0  
Investment, Identifier [Axis]: Doral Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal [3],[33] $ 26,500    
Cost [3],[33] 26,270    
Fair value $ 26,270 [7],[33] $ 0  
Investment, Identifier [Axis]: Dos Rios Partners | LP Interests (Dos Rios Partners - A, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 6.43% [11],[12],[23],[49] 6.43% [13],[14],[20],[50]  
Cost $ 1,915 [3],[11],[12],[23],[49] $ 1,960 [6],[13],[14],[20],[50]  
Fair value $ 2,549 [7],[11],[12],[23],[49] $ 2,447 [8],[13],[14],[20],[50] 2,631
Investment, Identifier [Axis]: Dos Rios Partners | LP Interests (Dos Rios Partners, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 20.24% [11],[12],[23],[49] 20.24% [13],[14],[20],[50]  
Cost $ 6,032 [3],[11],[12],[23],[49] $ 6,172 [6],[13],[14],[20],[50]  
Fair value $ 8,027 [7],[11],[12],[23],[49] $ 7,708 [8],[13],[14],[20],[50] 8,443
Investment, Identifier [Axis]: Dos Rios Stone Products LLC | Class A Preferred Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,000,000 [9],[23],[45] 2,000,000 [10],[20],[46]  
Cost $ 2,000 [3],[9],[23],[45] $ 2,000 [6],[10],[20],[46]  
Fair value $ 0 [7],[9],[23],[45] 0 [8],[10],[20],[46] 1,580
Investment, Identifier [Axis]: Dreyfus Government Cash Management      
Schedule of Investments [Line Items]      
Total Rate 3.70%    
Investment, Identifier [Axis]: Dreyfus Government Cash Management      
Schedule of Investments [Line Items]      
Cash and cash equivalents $ 1,227 [3],[51] 3,400 [6],[52]  
Cash and cash equivalents, fair value $ 1,227 [7],[51] $ 3,400 [8],[52]  
Investment, Identifier [Axis]: Dynamic Communities, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,250,000 [9],[22] 1,250,000 [10],[21]  
Cost $ 0 [3],[9],[22] $ 0 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: Dynamic Communities, LLC | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) 125,000 [9],[22] 125,000 [10],[21]  
Cost $ 128 [3],[9],[22] $ 128 [6],[10],[21]  
Fair value $ 110 [7],[9],[22] $ 60 [8],[10],[21]  
Investment, Identifier [Axis]: Dynamic Communities, LLC | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) 2,376,241 [9],[22] 2,376,241 [10],[21]  
Cost $ 0 [3],[9],[22] $ 0 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: Dynamic Communities, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.82% [9],[22],[30] 11.46% [10],[21],[37]  
Spread (as a percent) 8.00% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
PIK Rate 11.82% [9],[22],[24],[30] 11.46% [10],[21],[25],[37]  
Principal $ 2,612 [3],[9],[22],[30] $ 2,318 [6],[10],[21],[37]  
Cost 2,507 [3],[9],[22],[30] 2,160 [6],[10],[21],[37]  
Fair value $ 2,612 [7],[9],[22],[30] $ 2,220 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Dynamic Communities, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.82% [9],[22],[30] 13.46% [10],[21],[37]  
Spread (as a percent) 9.00% [9],[22],[28],[30] 9.00% [10],[21],[37],[38]  
PIK Rate [10],[21],[25],[37]   13.46%  
Principal $ 2,493 [3],[9],[22],[30] $ 2,413 [6],[10],[21],[37]  
Cost 2,259 [3],[9],[22],[30] 2,179 [6],[10],[21],[37]  
Fair value $ 2,463 [7],[9],[22],[30] $ 2,219 [8],[10],[21],[37]  
Investment, Identifier [Axis]: EIG Fund Investments | LP Interests (EIG Global Private Debt Fund-A, L.P.)      
Schedule of Investments [Line Items]      
Units (in shares) 5,000,000 [11],[12],[23],[31] 5,000,000 [13],[14],[20],[32]  
Cost $ 84 [3],[11],[12],[23],[31] $ 416 [6],[13],[14],[20],[32]  
Fair value $ 37 [7],[11],[12],[23],[31] $ 369 [8],[13],[14],[20],[32] 760
Investment, Identifier [Axis]: EWMW LP | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [11],[12],[22] 9.87%    
Spread (as a percent) [11],[12],[22],[28] 6.00%    
Principal [3],[11],[12],[22] $ 3,144    
Cost [3],[11],[12],[22] 3,144    
Fair value [7],[11],[12],[22] $ 3,144    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.74%  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
Principal [6],[10],[21],[37]   $ 2,826  
Cost [6],[10],[21],[37]   2,805  
Fair value [8],[10],[21],[37]   $ 2,714  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.74%  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
Principal [6],[10],[21],[37]   $ 4,374  
Cost [6],[10],[21],[37]   4,355  
Fair value [8],[10],[21],[37]   $ 4,201  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.74%  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
Principal [6],[10],[21],[37]   $ 8,725  
Cost [6],[10],[21],[37]   8,683  
Fair value [8],[10],[21],[37]   $ 8,380  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.74%  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
Principal [6],[10],[21],[37]   $ 1,809  
Cost [6],[10],[21],[37]   1,802  
Fair value [8],[10],[21],[37]   $ 1,738  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.74%  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
Principal [6],[10],[21],[37]   $ 9,901  
Cost [6],[10],[21],[37]   9,861  
Fair value [8],[10],[21],[37]   $ 9,509  
Investment, Identifier [Axis]: Electro Technical Industries, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 1,464,286    
Cost [3],[9],[22] $ 1,464    
Fair value [7],[9],[22] $ 2,220    
Investment, Identifier [Axis]: Electro Technical Industries, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (149)    
Fair value [7],[9],[22],[29],[30] $ (149)    
Investment, Identifier [Axis]: Electro Technical Industries, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.22%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 50,156    
Cost [3],[9],[22],[30] 49,312    
Fair value [7],[9],[22],[30] $ 50,156    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC | Common Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 285 [33] 285 [15]  
Cost $ 5,726 [3],[33] $ 5,726 [6],[15]  
Fair value $ 5,050 [7],[33] $ 5,730 [8],[15] 6,090
Investment, Identifier [Axis]: Elgin AcquireCo, LLC | Common Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 939 [33],[45] 939 [15],[46]  
Cost $ 1,558 [3],[33],[45] $ 1,558 [6],[15],[46]  
Fair value $ 3,270 [7],[33],[45] $ 3,050 [8],[15],[46] 1,670
Investment, Identifier [Axis]: Elgin AcquireCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.00% [28],[29],[30],[33] 6.00% [15],[37],[38],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost (3) [3],[29],[30],[33] (5) [6],[15],[37],[40]  
Fair value $ (3) [7],[29],[30],[33] $ (5) [8],[15],[37],[40] (7)
Investment, Identifier [Axis]: Elgin AcquireCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [33] 12.00% [15]  
Principal $ 16,778 [3],[33] $ 18,069 [6],[15]  
Cost 16,719 [3],[33] 17,969 [6],[15]  
Fair value $ 16,719 [7],[33] $ 17,969 [8],[15] 18,632
Investment, Identifier [Axis]: Elgin AcquireCo, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.00% [33] 9.00% [15]  
Principal $ 6,212 [3],[33] $ 6,265 [6],[15]  
Cost 6,156 [3],[33] 6,207 [6],[15]  
Fair value $ 6,156 [7],[33] $ 6,207 [8],[15] 6,252
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc. | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.22% [16],[22],[30] 10.71% [17],[21],[37]  
Spread (as a percent) 6.25% [16],[22],[28],[30] 6.25% [17],[21],[37],[38]  
Principal $ 9,330 [3],[16],[22],[30] $ 9,587 [6],[17],[21],[37]  
Cost 9,229 [3],[16],[22],[30] 9,434 [6],[17],[21],[37]  
Fair value $ 5,878 [7],[16],[22],[30] $ 7,670 [8],[17],[21],[37]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Energy Capital Fund IX, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.10% [11],[12],[22],[31],[49] 0.10% [13],[14],[21],[32],[50]  
Cost $ 3,187 [3],[11],[12],[22],[31],[49] $ 3,251 [6],[13],[14],[21],[32],[50]  
Fair value $ 1,056 [7],[11],[12],[22],[31],[49] $ 1,088 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Energy Capital Fund VIII Co-Investors, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.38% [11],[12],[22],[31],[49] 0.38% [13],[14],[21],[32],[50]  
Cost $ 1,394 [3],[11],[12],[22],[31],[49] $ 1,983 [6],[13],[14],[21],[32],[50]  
Fair value $ 5 [7],[11],[12],[22],[31],[49] $ 846 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Energy Capital Fund VIII, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.14% [11],[12],[22],[31],[49] 0.14% [13],[14],[21],[32],[50]  
Cost $ 2,613 [3],[11],[12],[22],[31],[49] $ 3,542 [6],[13],[14],[21],[32],[50]  
Fair value $ 130 [7],[11],[12],[22],[31],[49] $ 1,754 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Energy Capital Fund X, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.15% [11],[12],[22],[31],[49] 0.15% [13],[14],[21],[32],[50]  
Cost $ 6,975 [3],[11],[12],[22],[31],[49] $ 6,963 [6],[13],[14],[21],[32],[50]  
Fair value $ 4,674 [7],[11],[12],[22],[31],[49] $ 5,051 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Energy Capital Fund XII, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.19% [11],[12],[22],[31],[49] 0.19% [13],[14],[21],[32],[50]  
Cost $ 7,370 [3],[11],[12],[22],[31],[49] $ 2,717 [6],[13],[14],[21],[32],[50]  
Fair value $ 7,731 [7],[11],[12],[22],[31],[49] $ 3,525 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Flatrock Midstream Fund II, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.84% [11],[12],[22],[31],[49] 0.84% [13],[14],[21],[32],[50]  
Cost $ 3,799 [3],[11],[12],[22],[31],[49] $ 5,110 [6],[13],[14],[21],[32],[50]  
Fair value $ 15 [7],[11],[12],[22],[31],[49] $ 1,514 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: EnCap Energy Fund Investments | LP Interests (EnCap Flatrock Midstream Fund III, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.25% [11],[12],[22],[31],[49] 0.25% [13],[14],[21],[32],[50]  
Cost $ 3,371 [3],[11],[12],[22],[31],[49] $ 4,312 [6],[13],[14],[21],[32],[50]  
Fair value $ 1,947 [7],[11],[12],[22],[31],[49] $ 3,756 [8],[13],[14],[21],[32],[50]  
Investment, Identifier [Axis]: Escalent, Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 649,794 [9],[22] 649,794 [10],[21],[32]  
Cost $ 663 [3],[9],[22] $ 663 [6],[10],[21],[32]  
Fair value $ 910 [7],[9],[22] $ 910 [8],[10],[21],[32]  
Investment, Identifier [Axis]: Escalent, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.00% [9],[22],[28],[29],[30] 8.00% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (22) [3],[9],[22],[29],[30] (28) [6],[10],[21],[37],[40]  
Fair value $ 0 [7],[9],[22],[29],[30] $ (28) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Escalent, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.67% [9],[22],[30] 12.39% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
Principal $ 1,354 [3],[9],[22],[30] $ 1,382 [6],[10],[21],[37]  
Cost 1,337 [3],[9],[22],[30] 1,359 [6],[10],[21],[37]  
Fair value $ 1,354 [7],[9],[22],[30] $ 1,359 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Escalent, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.67% [9],[22],[30] 12.43% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
Principal $ 25,517 [3],[9],[22],[30] $ 26,048 [6],[10],[21],[37]  
Cost 25,094 [3],[9],[22],[30] 25,488 [6],[10],[21],[37]  
Fair value $ 25,517 [7],[9],[22],[30] $ 26,048 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Event Holdco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.93% [9],[22],[30] 12.59% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
Principal $ 3,692 [3],[9],[22],[30] $ 3,692 [6],[10],[21],[37]  
Cost 3,685 [3],[9],[22],[30] 3,678 [6],[10],[21],[37]  
Fair value $ 3,692 [7],[9],[22],[30] $ 3,692 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Event Holdco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.93% [9],[22],[30] 12.59% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
PIK Rate [10],[21],[25],[37]   6.00%  
Principal $ 48,035 [3],[9],[22],[30] $ 47,633 [6],[10],[21],[37]  
Cost 47,948 [3],[9],[22],[30] 47,457 [6],[10],[21],[37]  
Fair value 48,035 [7],[9],[22],[30] $ 47,633 [8],[10],[21],[37]  
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [20]   13.00%  
Principal [6],[20]   $ 32,800  
Cost [6],[20]   29,109  
Fair value 31,160 $ 29,109 [8],[20] 0
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] 0    
Fair value [7],[23],[29] $ 0    
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 31,160    
Cost [3],[23] 28,448    
Fair value [7],[23] $ 31,160    
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 12 [23],[31],[43] 12 [20],[27]  
Cost $ 3,920 [3],[23],[31],[43] $ 3,920 [6],[20],[27]  
Fair value $ 15,140 [7],[23],[31],[43] 10,840 [8],[20],[27] 0
Investment, Identifier [Axis]: FRG AcquireCo, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [23] 3,500    
Cost [3],[23] $ 3,500    
Fair value 3,500 [7],[23] 0  
Investment, Identifier [Axis]: FRG AcquireCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (19)    
Fair value $ (19) [7],[23],[29] 0  
Investment, Identifier [Axis]: FRG AcquireCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 10,500    
Cost [3],[23] 10,402    
Fair value $ 10,402 [7],[23] 0  
Investment, Identifier [Axis]: Fidelity Government Fund      
Schedule of Investments [Line Items]      
Total Rate 3.43%    
Cash and cash equivalents [6],[44]   1,526  
Cash and cash equivalents, fair value [8],[44]   1,526  
Investment, Identifier [Axis]: Fidelity Government Fund      
Schedule of Investments [Line Items]      
Cash and cash equivalents [3],[53] $ 1,171    
Cash and cash equivalents, fair value [7],[53] $ 1,171    
Investment, Identifier [Axis]: Fidelity Treasury      
Schedule of Investments [Line Items]      
Total Rate 3.43%    
Cash and cash equivalents [6],[54]   1,548  
Cash and cash equivalents, fair value [8],[54]   $ 1,548  
Investment, Identifier [Axis]: Fidelity Treasury      
Schedule of Investments [Line Items]      
Cash and cash equivalents [3],[55] $ 850    
Cash and cash equivalents, fair value [7],[55] $ 850    
Investment, Identifier [Axis]: Flame King Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 9,360 [31],[33] 9,360 [20],[32]  
Cost $ 10,400 [3],[31],[33] $ 10,400 [6],[20],[32]  
Fair value $ 54,630 [7],[31],[33] 35,920 [8],[20],[32] 27,900
Investment, Identifier [Axis]: Flame King Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 66,000 $ 0  
Investment, Identifier [Axis]: Flame King Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[29],[33] 0    
Cost [3],[29],[33] 0    
Fair value [7],[29],[33] $ 0    
Investment, Identifier [Axis]: Flame King Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [33] 12.00%    
Principal [3],[33] $ 66,000    
Cost [3],[33] 65,415    
Fair value [7],[33] $ 66,000    
Investment, Identifier [Axis]: Freeport Financial Funds | LP Interests (Freeport Financial SBIC Fund LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 9.30% [11],[12],[23],[49] 9.30% [13],[14],[20],[50]  
Cost $ 2,337 [3],[11],[12],[23],[49] $ 2,580 [6],[13],[14],[20],[50]  
Fair value $ 1,600 [7],[11],[12],[23],[49] $ 2,190 [8],[13],[14],[20],[50]  
Investment, Identifier [Axis]: Freeport Financial Funds | LP Interests (Freeport First Lien Loan Fund III LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 5.95% [11],[12],[23],[49] 5.95% [13],[14],[20],[32],[50]  
Cost $ 671 [3],[11],[12],[23],[49] $ 1,659 [6],[13],[14],[20],[32],[50]  
Fair value 193 [7],[11],[12],[23],[49] 1,263 [8],[13],[14],[20],[32],[50]  
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP | LP Interests (Freeport Financial SBIC Fund LP)      
Schedule of Investments [Line Items]      
Fair value 1,600 2,190 3,012
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP | LP Interests (Freeport First Lien Loan Fund III LP)      
Schedule of Investments [Line Items]      
Fair value $ 193 $ 1,263 3,704
Investment, Identifier [Axis]: Fuse, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 10,429 [16],[22] 10,429 [17],[21]  
Cost $ 256 [3],[16],[22] $ 256 [6],[17],[21]  
Fair value $ 0 [7],[16],[22] $ 0 [8],[17],[21]  
Investment, Identifier [Axis]: Fuse, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [16],[22] 12.00% [17],[21],[32]  
Principal $ 1,810 [3],[16],[22] $ 1,810 [6],[17],[21],[32]  
Cost 1,810 [3],[16],[22] 1,810 [6],[17],[21],[32]  
Fair value $ 323 [7],[16],[22] $ 932 [8],[17],[21],[32]  
Investment, Identifier [Axis]: GFG Group, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 226 [23],[31] 226 [20],[32]  
Cost $ 4,900 [3],[23],[31] $ 4,900 [6],[20],[32]  
Fair value $ 10,940 [7],[23],[31] $ 10,540 [8],[20],[32] 11,460
Investment, Identifier [Axis]: GFG Group, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 8.00% [23] 8.00% [20]  
Principal $ 14,053 [3],[23] $ 8,185 [6],[20]  
Cost 14,050 [3],[23] 8,164 [6],[20]  
Fair value 14,053 [7],[23] 8,185 [8],[20] 9,345
Investment, Identifier [Axis]: GFG Group, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value 0 8,185  
Investment, Identifier [Axis]: GFG Group, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value $ 0 0  
Investment, Identifier [Axis]: GFG Group, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 8.00%    
Fair value $ 14,053 $ 0  
Investment, Identifier [Axis]: GRT Rubber Technologies LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 5,879 [31],[33] 5,879 [15]  
Cost $ 13,065 [3],[31],[33] $ 13,065 [6],[15]  
Fair value $ 46,360 [7],[31],[33] $ 45,890 [8],[15] 44,440
Investment, Identifier [Axis]: GRT Rubber Technologies LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.98% [33] 10.66% [15]  
Spread (as a percent) 6.00% [28],[33] 6.00% [15],[38]  
Principal $ 3,146 [3],[33] $ 3,146 [6],[15]  
Cost 3,143 [3],[33] 3,140 [6],[15]  
Fair value $ 3,146 [7],[33] $ 3,146 [8],[15] 2,400
Investment, Identifier [Axis]: GRT Rubber Technologies LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.98% [33] 12.66% [15]  
Spread (as a percent) 8.00% [28],[33] 8.00% [15],[38]  
Principal $ 40,493 [3],[33] $ 40,493 [6],[15]  
Cost 40,452 [3],[33] 40,406 [6],[15]  
Fair value $ 40,493 [7],[33] $ 40,493 [8],[15] 40,493
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.48% [9],[22],[30],[36] 11.12% [10],[21],[37],[44]  
Spread (as a percent) 6.50% [9],[22],[28],[30],[36] 6.50% [10],[21],[37],[38],[44]  
Principal $ 6,061 [3],[9],[22],[30],[36] $ 1,864 [6],[10],[21],[37],[44]  
Cost 6,042 [3],[9],[22],[30],[36] 1,853 [6],[10],[21],[37],[44]  
Fair value $ 6,061 [7],[9],[22],[30],[36] $ 1,864 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.47% [9],[22],[30] 11.24% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 10,392 [3],[9],[22],[30] $ 10,509 [6],[10],[21],[37]  
Cost 10,342 [3],[9],[22],[30] 10,460 [6],[10],[21],[37]  
Fair value $ 10,392 [7],[9],[22],[30] $ 10,509 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.47% [9],[22],[30] 11.24% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 932 [3],[9],[22],[30] $ 942 [6],[10],[21],[37]  
Cost 928 [3],[9],[22],[30] 939 [6],[10],[21],[37]  
Fair value $ 932 [7],[9],[22],[30] $ 942 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 10.47% [9],[22],[30] 11.24% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 223 [3],[9],[22],[30] $ 225 [6],[10],[21],[37]  
Cost 222 [3],[9],[22],[30] 223 [6],[10],[21],[37]  
Fair value $ 223 [7],[9],[22],[30] $ 225 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate 10.47% [9],[22],[30] 10.98% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 6,011 [3],[9],[22],[30] $ 6,076 [6],[10],[21],[37]  
Cost 5,981 [3],[9],[22],[30] 6,040 [6],[10],[21],[37]  
Fair value $ 6,011 [7],[9],[22],[30] $ 6,076 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.82% [9],[22],[30],[36] 10.50% [10],[21],[37],[44]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[36] 6.00% [10],[21],[37],[38],[44]  
Principal $ 454 [3],[9],[22],[30],[36] $ 707 [6],[10],[21],[37],[44]  
Cost 444 [3],[9],[22],[30],[36] 694 [6],[10],[21],[37],[44]  
Fair value $ 420 [7],[9],[22],[30],[36] $ 662 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.83% [9],[22],[30] 10.55% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 6.00% [10],[21],[37],[38]  
Principal $ 295 [3],[9],[22],[30] $ 298 [6],[10],[21],[37]  
Cost 286 [3],[9],[22],[30] 286 [6],[10],[21],[37]  
Fair value $ 273 [7],[9],[22],[30] $ 279 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.82% [9],[22],[30] 10.46% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 6.00% [10],[21],[37],[38]  
Principal $ 3,542 [3],[9],[22],[30] $ 3,578 [6],[10],[21],[37]  
Cost 3,502 [3],[9],[22],[30] 3,533 [6],[10],[21],[37]  
Fair value $ 3,266 [7],[9],[22],[30] 3,350 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33],[45] 532    
Cost [3],[33],[45] $ 396    
Fair value $ 396 [7],[33],[45] $ 0  
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 9,042 [31],[33] 9,042 [15],[32]  
Cost $ 17,692 [3],[31],[33] $ 17,692 [6],[15],[32]  
Fair value $ 113,810 [7],[31],[33] $ 114,750 [8],[15],[32] 96,710
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 7.50% [28],[29],[30],[33],[56] 7.00% [15],[37],[38],[40],[57]  
Principal $ 0 [3],[29],[30],[33],[56] $ 0 [6],[15],[37],[40],[57]  
Cost 0 [3],[29],[30],[33],[56] 0 [6],[15],[37],[40],[57]  
Fair value $ 0 [7],[29],[30],[33],[56] $ 0 [8],[15],[37],[40],[57] 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.38% [30],[33],[56] 11.00% [15],[37],[57]  
Spread (as a percent) 7.50% [28],[30],[33],[56] 7.00% [15],[37],[38],[57]  
Principal $ 70,526 [3],[30],[33],[56] $ 73,126 [6],[15],[37],[57]  
Cost 70,436 [3],[30],[33],[56] 72,986 [6],[15],[37],[57]  
Fair value $ 70,526 [7],[30],[33],[56] $ 73,126 [8],[15],[37],[57] 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Spread (as a percent)   7.00%  
Fair value   $ 0 54,078
Investment, Identifier [Axis]: Garreco, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,200 [33] 1,200 [15],[32]  
Cost $ 1,200 [3],[33] $ 1,200 [6],[15],[32]  
Fair value $ 1,830 [7],[33] $ 2,060 [8],[15],[32] 1,580
Investment, Identifier [Axis]: Garreco, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Spread (as a percent)   8.00%  
Fair value   $ 0 3,088
Investment, Identifier [Axis]: Garyline, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 705,882 [9],[22] 705,882 [10],[21]  
Cost $ 706 [3],[9],[22] $ 706 [6],[10],[21]  
Fair value $ 450 [7],[9],[22] $ 500 [8],[10],[21]  
Investment, Identifier [Axis]: Garyline, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[44]   11.29%  
Spread (as a percent) 7.25% [9],[22],[28],[29],[30] 6.75% [10],[21],[37],[38],[44]  
Principal $ 0 [3],[9],[22],[29],[30] $ 8,118 [6],[10],[21],[37],[44]  
Cost (71) [3],[9],[22],[29],[30] 7,915 [6],[10],[21],[37],[44]  
Fair value $ 0 [7],[9],[22],[29],[30] $ 8,118 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Garyline, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.98% [9],[22],[30] 11.34% [10],[21],[37]  
Spread (as a percent) 7.25% [9],[22],[28],[30] 6.75% [10],[21],[37],[38]  
Principal $ 28,606 [3],[9],[22],[30] $ 32,146 [6],[10],[21],[37]  
Cost 28,203 [3],[9],[22],[30] 31,401 [6],[10],[21],[37]  
Fair value $ 28,606 [7],[9],[22],[30] $ 32,146 [8],[10],[21],[37]  
Investment, Identifier [Axis]: GradeEight Corp. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,653 [9],[22] 1,365 [10],[21]  
Cost $ 1,634 [3],[9],[22] $ 1,365 [6],[10],[21]  
Fair value $ 1,229 [7],[9],[22] $ 1,365 [8],[10],[21]  
Investment, Identifier [Axis]: GradeEight Corp. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 11.23%    
Spread (as a percent) 7.50% [9],[22],[28],[30] 7.25% [10],[21],[37],[38],[40]  
Principal $ 853 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 778 [3],[9],[22],[30] (95) [6],[10],[21],[37],[40]  
Fair value $ 834 [7],[9],[22],[30] $ (95) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: GradeEight Corp. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 11.23%    
Spread (as a percent) 7.50% [9],[22],[28],[30] 7.25% [10],[21],[37],[38],[40]  
Principal $ 4,176 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 4,090 [3],[9],[22],[30] (48) [6],[10],[21],[37],[40]  
Fair value $ 4,090 [7],[9],[22],[30] $ (48) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: GradeEight Corp. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.31% [9],[22],[30],[58] 11.74% [10],[21],[37],[59]  
Spread (as a percent) 7.25% [9],[22],[28],[30],[58] 7.25% [10],[21],[37],[38],[59]  
Principal $ 30,813 [3],[9],[22],[30],[58] $ 31,603 [6],[10],[21],[37],[59]  
Cost 30,347 [3],[9],[22],[30],[58] 31,002 [6],[10],[21],[37],[59]  
Fair value $ 30,135 [7],[9],[22],[30],[58] $ 31,002 [8],[10],[21],[37],[59]  
Investment, Identifier [Axis]: Gulf Manufacturing, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 888 [11],[18],[23],[31],[45] 888 [13],[19],[20]  
Cost $ 888 [3],[11],[18],[23],[31],[45] $ 888 [6],[13],[19],[20]  
Fair value $ 1,450 [7],[11],[18],[23],[31],[45] $ 888 [8],[13],[19],[20] 0
Investment, Identifier [Axis]: Gulf Manufacturing, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 438 [11],[18],[23],[31] 438 [13],[19],[20],[32]  
Cost $ 2,980 [3],[11],[18],[23],[31] $ 2,980 [6],[13],[19],[20],[32]  
Fair value $ 6,600 [7],[11],[18],[23],[31] 14,730 [8],[13],[19],[20],[32] 9,070
Investment, Identifier [Axis]: Gulf Manufacturing, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [11],[18],[23] 208    
Cost [3],[11],[18],[23] $ 2,077    
Fair value $ 5,190 [7],[11],[18],[23] $ 0  
Investment, Identifier [Axis]: Gulf Manufacturing, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 8.13% [11],[18],[23],[28],[29] 7.63% [13],[19],[20],[38],[40]  
Principal $ 0 [3],[11],[18],[23],[29] $ 0 [6],[13],[19],[20],[40]  
Cost (32) [3],[11],[18],[23],[29] (42) [6],[13],[19],[20],[40]  
Fair value $ (32) [7],[11],[18],[23],[29] $ 0 [8],[13],[19],[20],[40] 0
Investment, Identifier [Axis]: Gulf Manufacturing, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.01% [11],[18],[23] 12.19% [13],[19],[20]  
Spread (as a percent) 8.13% [11],[18],[23],[28] 7.63% [13],[19],[20],[38]  
Principal $ 37,700 [3],[11],[18],[23] $ 39,000 [6],[13],[19],[20]  
Cost 36,784 [3],[11],[18],[23] 38,676 [6],[13],[19],[20]  
Fair value 36,784 [7],[11],[18],[23] $ 39,000 [8],[13],[19],[20] 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [15]   3,681  
Cost [6],[15]   $ 3,681  
Fair value 0 $ 0 [8],[15] 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [15]   63,720  
Cost [6],[15]   $ 5,600  
Fair value $ 0 $ 0 [8],[15] 2,460
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.50% 9.50% [15],[37],[38],[39],[40]  
Principal [6],[15],[37],[39],[40]   $ 0  
Cost [6],[15],[37],[39],[40]   0  
Fair value $ 0 $ 0 [8],[15],[37],[39],[40] 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15],[39]   12.50%  
PIK Rate [15],[25],[39]   12.50%  
Principal [6],[15],[39]   $ 2,400  
Cost [6],[15],[39]   2,299  
Fair value $ 0 $ 1,518 [8],[15],[39] 2,284
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 64,029 [9],[22] 64,029 [10],[21]  
Cost $ 0 [3],[9],[22] $ 0 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.01% [9],[22],[26],[30] 8.75% [10],[21],[37]  
Spread (as a percent) 3.50% [9],[22],[26],[28],[30] 3.50% [10],[21],[37],[38]  
PIK Rate 2.50% [9],[22],[24],[26],[30] 2.50% [10],[21],[25],[37]  
Principal $ 2,607 [3],[9],[22],[26],[30] $ 2,423 [6],[10],[21],[37]  
Cost 2,557 [3],[9],[22],[26],[30] 2,327 [6],[10],[21],[37]  
Fair value $ 2,272 [7],[9],[22],[26],[30] $ 2,327 [8],[10],[21],[37]  
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 2.50% [9],[22],[26] 2.50% [10],[21],[39]  
PIK Rate 2.50% [9],[22],[24],[26] 2.50% [10],[21],[25],[39]  
Principal $ 1,626 [3],[9],[22],[26] $ 1,626 [6],[10],[21],[39]  
Cost 713 [3],[9],[22],[26] 713 [6],[10],[21],[39]  
Fair value $ 0 [7],[9],[22],[26] $ 418 [8],[10],[21],[39]  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   6.50%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (35)  
Fair value [8],[10],[21],[37],[40]   $ (35)  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.86%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 6,666  
Cost [6],[10],[21],[37]   6,586  
Fair value [8],[10],[21],[37]   $ 6,666  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.86%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 4,713  
Cost [6],[10],[21],[37]   4,597  
Fair value [8],[10],[21],[37]   $ 4,713  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.86%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 16,453  
Cost [6],[10],[21],[37]   16,283  
Fair value [8],[10],[21],[37]   $ 16,453  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.86%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 8,039  
Cost [6],[10],[21],[37]   7,973  
Fair value [8],[10],[21],[37]   $ 8,039  
Investment, Identifier [Axis]: HOWLCO LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.51% [11],[16],[18],[22],[30] 11.28% [13],[17],[19],[21],[37]  
Spread (as a percent) 6.50% [11],[16],[18],[22],[28],[30] 6.50% [13],[17],[19],[21],[37],[38]  
PIK Rate 3.50% [11],[16],[18],[22],[24],[30] 3.50% [13],[17],[19],[21],[25],[37]  
Principal $ 27,185 [3],[11],[16],[18],[22],[30] $ 26,241 [6],[13],[17],[19],[21],[37]  
Cost 27,185 [3],[11],[16],[18],[22],[30] 26,241 [6],[13],[17],[19],[21],[37]  
Fair value 26,616 [7],[11],[16],[18],[22],[30] 26,096 [8],[13],[17],[19],[21],[37]  
Investment, Identifier [Axis]: HPEP 3, L.P. | LP Interests (HPEP 3, L.P.)      
Schedule of Investments [Line Items]      
Fair value 4,116 4,472 4,225
Investment, Identifier [Axis]: HPEP 3, L.P. | LP Interests (HPEP 4, L.P.)      
Schedule of Investments [Line Items]      
Fair value 7,463 5,861 3,773
Investment, Identifier [Axis]: HPEP 423 COR, LP | LP Interests (423 COR, L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 5,244 $ 4,187 1,869
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (2717 GRE-LP, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 43.05% [11],[12],[33],[49] 43.05% [13],[14],[15],[50]  
Cost $ 441 [3],[11],[12],[33],[49] $ 441 [6],[13],[14],[15],[50]  
Fair value $ 441 [7],[11],[12],[33],[49] $ 441 [8],[13],[14],[15],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (2717 HPP-MS, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 49.26% [11],[12],[33],[49] 49.26% [13],[14],[15],[50]  
Cost $ 256 [3],[11],[12],[33],[49] $ 256 [6],[13],[14],[15],[50]  
Fair value $ 447 [7],[11],[12],[33],[49] $ 383 [8],[13],[14],[15],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (2717 MH, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 49.26% [11],[12],[33],[49] 49.26% [13],[14],[15],[32],[50]  
Cost $ 1,158 [3],[11],[12],[33],[49] $ 3,345 [6],[13],[14],[15],[32],[50]  
Fair value $ 1,795 [7],[11],[12],[33],[49] $ 8,818 [8],[13],[14],[15],[32],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (423 AER II, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) [11],[12],[22],[49] 4.13%    
Cost [3],[11],[12],[22],[49] $ 1,590    
Fair value [7],[11],[12],[22],[49] $ 1,590    
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (423 COR, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 26.89% [11],[12],[33],[49] 26.89% [13],[14],[15],[32],[50]  
Cost $ 2,900 [3],[11],[12],[33],[49] $ 2,900 [6],[13],[14],[15],[32],[50]  
Fair value $ 5,244 [7],[11],[12],[33],[49] $ 4,187 [8],[13],[14],[15],[32],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (423 HAR, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 15.60% [11],[12],[23],[31],[49] 15.60% [13],[14],[20],[50]  
Cost $ 750 [3],[11],[12],[23],[31],[49] $ 750 [6],[13],[14],[20],[50]  
Fair value $ 1,226 [7],[11],[12],[23],[31],[49] $ 1,226 [8],[13],[14],[20],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (HPEP 3, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 8.22% [11],[12],[23],[49] 8.22% [13],[14],[20],[50]  
Cost $ 1,549 [3],[11],[12],[23],[49] $ 2,296 [6],[13],[14],[20],[50]  
Fair value $ 4,116 [7],[11],[12],[23],[49] $ 4,472 [8],[13],[14],[20],[50]  
Investment, Identifier [Axis]: Harris Preston Fund Investments | LP Interests (HPEP 4, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 11.61% [11],[12],[23],[49] 11.61% [13],[14],[20],[50]  
Cost $ 6,409 [3],[11],[12],[23],[49] $ 5,532 [6],[13],[14],[20],[50]  
Fair value $ 7,463 [7],[11],[12],[23],[49] $ 5,861 [8],[13],[14],[20],[50]  
Investment, Identifier [Axis]: Harrison Hydra-Gen, Ltd. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 107,456 [31],[33] 107,456 [15],[32]  
Cost $ 718 [3],[31],[33] $ 718 [6],[15],[32]  
Fair value $ 7,080 [7],[31],[33] $ 7,010 [8],[15],[32] 4,660
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 226 [23],[31] 226 [20],[32]  
Cost $ 2,850 [3],[23],[31] $ 2,850 [6],[20],[32]  
Fair value $ 26,310 [7],[23],[31] $ 20,260 [8],[20],[32] 17,460
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 226 [23],[45] 226 [20],[46]  
Cost $ 150 [3],[23],[45] $ 150 [6],[20],[46]  
Fair value $ 1,380 [7],[23],[45] $ 1,070 [8],[20],[46] 920
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.98% [23],[30] 10.73% [20],[37]  
Spread (as a percent) 6.00% [23],[28],[30] 6.00% [20],[37],[38]  
Principal $ 3,219 [3],[23],[30] $ 2,645 [6],[20],[37]  
Cost 3,219 [3],[23],[30] 2,644 [6],[20],[37]  
Fair value $ 3,219 [7],[23],[30] $ 2,645 [8],[20],[37] 1,974
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.00% [23] 12.50% [20]  
Principal $ 45,256 [3],[23] $ 45,256 [6],[20]  
Cost 45,256 [3],[23] 45,200 [6],[20]  
Fair value $ 45,256 [7],[23] $ 45,256 [8],[20] 45,256
Investment, Identifier [Axis]: Hornblower Sub, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.32% [9],[22],[30],[36] 9.92% [10],[21],[37],[44]  
Spread (as a percent) 5.50% [9],[22],[28],[30],[36] 5.50% [10],[21],[37],[38],[44]  
PIK Rate [9],[22],[24],[30],[36] 1.50%    
Principal $ 4,752 [3],[9],[22],[30],[36] $ 2,429 [6],[10],[21],[37],[44]  
Cost 4,718 [3],[9],[22],[30],[36] 2,385 [6],[10],[21],[37],[44]  
Fair value $ 4,697 [7],[9],[22],[30],[36] $ 2,407 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Hornblower Sub, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.46% [9],[22],[30] 10.11% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 5.50% [10],[21],[37],[38]  
PIK Rate [9],[22],[24],[30] 1.50%    
Principal $ 32,599 [3],[9],[22],[30] $ 30,979 [6],[10],[21],[37]  
Cost 32,353 [3],[9],[22],[30] 30,701 [6],[10],[21],[37]  
Fair value $ 32,163 [7],[9],[22],[30] $ 30,701 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 322,297 [23],[31] 322,297 [20],[32]  
Cost $ 2,352 [3],[23],[31] $ 2,352 [6],[20],[32]  
Fair value $ 3,720 [7],[23],[31] $ 3,930 [8],[20],[32] 3,340
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC | Unsecured Convertible Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% [23] 10.00% [20]  
Principal $ 3,000 [3],[23] $ 3,000 [6],[20]  
Cost 3,000 [3],[23] 3,000 [6],[20]  
Fair value $ 3,000 [7],[23] $ 2,940 [8],[20] 2,880
Investment, Identifier [Axis]: Hybrid Promotions, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.24% [9],[22],[30] 13.10% [10],[21],[37]  
Spread (as a percent) 8.25% [9],[22],[28],[30] 8.25% [10],[21],[37],[38]  
Principal $ 7,200 [3],[9],[22],[30] $ 7,200 [6],[10],[21],[37]  
Cost 7,115 [3],[9],[22],[30] 7,073 [6],[10],[21],[37]  
Fair value $ 7,200 [7],[9],[22],[30] 7,200 [8],[10],[21],[37]  
Investment, Identifier [Axis]: I-45 SLF LLC | Member Units (Fully diluted 20.0%; 21.75% profits interest)      
Schedule of Investments [Line Items]      
Fair value   $ 0 13,490
Investment, Identifier [Axis]: IG Investor, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 14,400 [33] 14,400 [15]  
Cost $ 14,400 [3],[33] $ 14,400 [6],[15]  
Fair value $ 28,030 [7],[33] $ 16,230 [8],[15] 14,400
Investment, Identifier [Axis]: IG Investor, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 1,600 [3],[33] $ 1,600 [6],[15]  
Cost 1,580 [3],[33] 1,572 [6],[15]  
Fair value $ 1,600 [7],[33] $ 1,572 [8],[15] (35)
Investment, Identifier [Axis]: IG Investor, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 35,064 [3],[33] $ 35,504 [6],[15]  
Cost 34,890 [3],[33] 35,257 [6],[15]  
Fair value $ 35,064 [7],[33] $ 35,257 [8],[15] 36,934
Investment, Identifier [Axis]: IG Parent Corporation | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.75% [16],[22],[28],[29],[30] 5.75% [17],[21],[37],[38],[40]  
Principal $ 0 [3],[16],[22],[29],[30] $ 0 [6],[17],[21],[37],[40]  
Cost (8) [3],[16],[22],[29],[30] (12) [6],[17],[21],[37],[40]  
Fair value $ 0 [7],[16],[22],[29],[30] $ 0 [8],[17],[21],[37],[40]  
Investment, Identifier [Axis]: IG Parent Corporation | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.57% [16],[22],[30] 10.21% [17],[21],[37]  
Spread (as a percent) 5.75% [16],[22],[28],[30] 5.75% [17],[21],[37],[38]  
Principal $ 10,127 [3],[16],[22],[30] $ 10,154 [6],[17],[21],[37]  
Cost 10,070 [3],[16],[22],[30] 10,073 [6],[17],[21],[37]  
Fair value $ 10,127 [7],[16],[22],[30] $ 10,154 [8],[17],[21],[37]  
Investment, Identifier [Axis]: IG Parent Corporation | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.57% [16],[22],[30] 10.21% [17],[21],[37]  
Spread (as a percent) 5.75% [16],[22],[28],[30] 5.75% [17],[21],[37],[38]  
Principal $ 4,853 [3],[16],[22],[30] $ 4,903 [6],[17],[21],[37]  
Cost 4,822 [3],[16],[22],[30] 4,861 [6],[17],[21],[37]  
Fair value $ 4,853 [7],[16],[22],[30] $ 4,903 [8],[17],[21],[37]  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.15% [23],[30] 13.78% [20],[37]  
Spread (as a percent) 7.00% [23],[28],[30] 9.00% [20],[37],[38]  
Principal $ 1,180 [3],[23],[30] $ 1,180 [6],[20],[37]  
Cost 1,172 [3],[23],[30] 1,169 [6],[20],[37]  
Fair value $ 1,180 [7],[23],[30] 1,180 [8],[20],[37] 816
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 11.15%    
Spread (as a percent) 7.00%    
Fair value $ 1,180 1,180  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value $ 0 994  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate 11.15%    
Spread (as a percent) 7.00%    
Fair value $ 5,310 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate 11.15%    
Spread (as a percent) 7.00%    
Fair value $ 4,935 4,438  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.5      
Schedule of Investments [Line Items]      
Total Rate 11.15%    
Spread (as a percent) 7.00%    
Fair value $ 4,935 4,438  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 1.6      
Schedule of Investments [Line Items]      
Total Rate 11.15%    
Spread (as a percent) 7.00%    
Fair value $ 1,770 $ 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.15% [23],[30] 13.78% [20],[37]  
Spread (as a percent) 7.00% [23],[28],[30] 9.00% [20],[37],[38]  
Principal $ 5,310 [3],[23],[30] $ 994 [6],[20],[37]  
Cost 5,295 [3],[23],[30] 981 [6],[20],[37]  
Fair value $ 5,310 [7],[23],[30] $ 994 [8],[20],[37] 697
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.15% [23],[30] 12.78% [20],[37]  
Spread (as a percent) 7.00% [23],[28],[30] 8.00% [20],[37],[38]  
Principal $ 4,935 [3],[23],[30] $ 4,438 [6],[20],[37]  
Cost 4,535 [3],[23],[30] 3,772 [6],[20],[37]  
Fair value $ 4,935 [7],[23],[30] $ 4,438 [8],[20],[37] 3,430
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 11.15% [23],[30] 14.78% [20],[37]  
Spread (as a percent) 7.00% [23],[28],[30] 10.00% [20],[37],[38]  
Principal $ 4,935 [3],[23],[30] $ 4,438 [6],[20],[37]  
Cost 4,535 [3],[23],[30] 3,772 [6],[20],[37]  
Fair value $ 4,935 [7],[23],[30] $ 4,438 [8],[20],[37] 3,430
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [23],[30] 11.15%    
Spread (as a percent) [23],[28],[30] 7.00%    
Principal [3],[23],[30] $ 1,770    
Cost [3],[23],[30] 1,765    
Fair value [7],[23],[30] $ 1,770    
Investment, Identifier [Axis]: ITA Holdings Group, LLC | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 193,307 [23],[31],[43] 193,307 [20],[27]  
Cost $ 2,091 [3],[23],[31],[43] $ 2,091 [6],[20],[27]  
Fair value $ 15,230 [7],[23],[31],[43] $ 5,690 [8],[20],[27] 2,091
Investment, Identifier [Axis]: Ignite Visibility LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 8.84%    
Spread (as a percent) [9],[22],[28],[30] 5.00%    
Principal [3],[9],[22],[30] $ 4,759    
Cost [3],[9],[22],[30] 4,689    
Fair value [7],[9],[22],[30] $ 4,689    
Investment, Identifier [Axis]: Ignite Visibility LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.84%    
Spread (as a percent) [9],[22],[28],[30] 7.00%    
Principal [3],[9],[22],[30] $ 4,759    
Cost [3],[9],[22],[30] 4,689    
Fair value [7],[9],[22],[30] $ 4,689    
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 849 [9] 849 [10],[21]  
Cost $ 1,166 [3],[9] $ 1,166 [6],[10],[21]  
Fair value $ 1,090 [7],[9] $ 1,020 [8],[10],[21]  
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[44]   11.39%  
Spread (as a percent) [10],[21],[37],[38],[44]   7.00%  
Principal [6],[10],[21],[37],[44]   $ 1,581  
Cost [6],[10],[21],[37],[44]   1,518  
Fair value [8],[10],[21],[37],[44]   $ 1,581  
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.62%  
Spread (as a percent) [10],[21],[37],[38]   7.00%  
Principal [6],[10],[21],[37]   $ 20,559  
Cost [6],[10],[21],[37]   20,133  
Fair value [8],[10],[21],[37]   $ 20,559  
Investment, Identifier [Axis]: Implus Footcare, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 4,238,917    
Cost [3],[9],[22] $ 5,680    
Fair value [7],[9],[22] $ 4,910    
Investment, Identifier [Axis]: Implus Footcare, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   13.73%  
Spread (as a percent) [10],[21],[37],[38]   7.75%  
PIK Rate [10],[21],[25],[37]   1.50%  
Principal [6],[10],[21],[37]   $ 18,674  
Cost [6],[10],[21],[37]   18,674  
Fair value [8],[10],[21],[37]   $ 15,892  
Investment, Identifier [Axis]: Implus Footcare, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.68%    
Spread (as a percent) [9],[22],[28],[30] 6.00%    
PIK Rate [9],[22],[24],[30] 4.00%    
Principal [3],[9],[22],[30] $ 1,944    
Cost [3],[9],[22],[30] 1,944    
Fair value [7],[9],[22],[30] $ 1,944    
Investment, Identifier [Axis]: Implus Footcare, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.68%    
Spread (as a percent) [9],[22],[28],[30] 6.00%    
PIK Rate [9],[22],[24],[30] 9.68%    
Principal [3],[9],[22],[30] $ 4,425    
Cost [3],[9],[22],[30] 4,425    
Fair value [7],[9],[22],[30] $ 4,425    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 18,006,407 [9],[23] 18,006,407 [10],[20]  
Cost $ 18,300 [3],[9],[23] $ 18,300 [6],[10],[20]  
Fair value $ 19,000 [7],[9],[23] $ 20,390 [8],[10],[20] 17,690
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 87,360 [23],[31] 87,360 [20],[32]  
Cost $ 4,368 [3],[23],[31] $ 4,368 [6],[20],[32]  
Fair value $ 8,010 [7],[23],[31] $ 9,080 [8],[20],[32] 4,000
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23] 12.00% [20]  
Principal $ 15,299 [3],[23] $ 15,050 [6],[20]  
Cost 15,289 [3],[23] 14,954 [6],[20]  
Fair value 15,299 [7],[23] 15,050 [8],[20] 17,403
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value $ 0 15,050  
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 15,299 $ 0  
Investment, Identifier [Axis]: Insight Borrower Corporation | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 131,100 [9],[22] 131,100 [10],[21]  
Cost $ 656 [3],[9],[22] $ 656 [6],[10],[21]  
Fair value $ 270 [7],[9],[22] $ 320 [8],[10],[21]  
Investment, Identifier [Axis]: Insight Borrower Corporation | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30],[36] 10.10%    
Spread (as a percent) 6.25% [9],[22],[28],[30],[36] 6.25% [10],[21],[37],[38],[40]  
Principal $ 1,441 [3],[9],[22],[30],[36] $ 0 [6],[10],[21],[37],[40]  
Cost 1,401 [3],[9],[22],[30],[36] (54) [6],[10],[21],[37],[40]  
Fair value $ 1,341 [7],[9],[22],[30],[36] $ (54) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Insight Borrower Corporation | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.12%    
Spread (as a percent) 6.25% [9],[22],[28],[30] 6.25% [10],[21],[37],[38],[40]  
Principal $ 14,118 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 13,865 [3],[9],[22],[30] (47) [6],[10],[21],[37],[40]  
Fair value $ 13,140 [7],[9],[22],[30] $ (47) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Insight Borrower Corporation | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.87%  
Spread (as a percent) [10],[21],[37],[38]   6.25%  
Principal [6],[10],[21],[37]   $ 14,262  
Cost [6],[10],[21],[37]   13,936  
Fair value [8],[10],[21],[37]   $ 13,539  
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 177,594 [9],[22] 166,504 [10],[21]  
Cost $ 463 [3],[9],[22] $ 452 [6],[10],[21]  
Fair value $ 97 [7],[9],[22] $ 27 [8],[10],[21]  
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.97% [9],[22],[30] 14.69% [10],[21],[37],[44]  
Spread (as a percent) 10.00% [9],[22],[28],[30] 10.00% [10],[21],[37],[38],[44]  
PIK Rate 2.00% [9],[22],[24],[30] 2.00% [10],[21],[25],[37],[44]  
Principal $ 857 [3],[9],[22],[30] $ 791 [6],[10],[21],[37],[44]  
Cost 846 [3],[9],[22],[30] 776 [6],[10],[21],[37],[44]  
Fair value $ 808 [7],[9],[22],[30] $ 725 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.97% [9],[22],[30] 14.58% [10],[21],[37]  
Spread (as a percent) 10.00% [9],[22],[28],[30] 10.00% [10],[21],[37],[38]  
PIK Rate 2.00% [9],[22],[24],[30] 2.00% [10],[21],[25],[37]  
Principal $ 7,307 [3],[9],[22],[30] $ 7,240 [6],[10],[21],[37]  
Cost 7,224 [3],[9],[22],[30] 7,118 [6],[10],[21],[37]  
Fair value $ 6,889 [7],[9],[22],[30] $ 6,636 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 13.97% [9],[22],[30] 14.58% [10],[21],[37]  
Spread (as a percent) 10.00% [9],[22],[28],[30] 10.00% [10],[21],[37],[38]  
PIK Rate 2.00% [9],[22],[24],[30] 2.00% [10],[21],[25],[37]  
Principal $ 2,941 [3],[9],[22],[30] $ 2,912 [6],[10],[21],[37]  
Cost 2,910 [3],[9],[22],[30] 2,867 [6],[10],[21],[37]  
Fair value $ 2,773 [7],[9],[22],[30] $ 2,669 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 13.97%    
Spread (as a percent) [9],[22],[28],[30] 10.00%    
PIK Rate [9],[22],[24],[30] 2.00%    
Principal [3],[9],[22],[30] $ 339    
Cost [3],[9],[22],[30] 339    
Fair value [7],[9],[22],[30] $ 320    
Investment, Identifier [Axis]: Integral Energy Services | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 9,968 [9],[23] 9,968 [10],[20]  
Cost $ 1,356 [3],[9],[23] $ 1,356 [6],[10],[20]  
Fair value $ 350 [7],[9],[23] $ 550 [8],[10],[20] 160
Investment, Identifier [Axis]: Integral Energy Services | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[20],[32]   3,188  
Total Rate [10],[20],[32]   10.00%  
PIK Rate [10],[20],[25],[32]   10.00%  
Cost [6],[10],[20],[32]   $ 254  
Fair value   452 [8],[10],[20],[32] 300
Investment, Identifier [Axis]: Integral Energy Services | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) [9],[23],[31] 3,188    
Total Rate [9],[23],[31] 10.00%    
PIK Rate [9],[23],[24],[31] 10.00%    
Cost [3],[9],[23],[31] $ 281    
Fair value $ 420 [7],[9],[23],[31] 452  
Investment, Identifier [Axis]: Integral Energy Services | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) [9],[23] 3,078    
Total Rate [9],[23] 10.00%    
PIK Rate [9],[23],[24] 10.00%    
Cost [3],[9],[23] $ 328    
Fair value $ 404 [7],[9],[23] $ 0  
Investment, Identifier [Axis]: Integral Energy Services | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.75% [9],[23],[30] 12.35% [10],[20],[37]  
Spread (as a percent) 7.50% [9],[23],[28],[30] 7.50% [10],[20],[37],[38]  
Principal $ 12,273 [3],[9],[23],[30] $ 12,915 [6],[10],[20],[37]  
Cost 12,240 [3],[9],[23],[30] 12,828 [6],[10],[20],[37]  
Fair value $ 12,042 [7],[9],[23],[30] $ 12,728 [8],[10],[20],[37] 13,891
Investment, Identifier [Axis]: Interface Security Systems, L.L.C | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 2,143 [9],[22] 2,143 [10],[21]  
Cost $ 0 [3],[9],[22] $ 0 [6],[10],[21]  
Fair value $ 0 [7],[9],[22] $ 0 [8],[10],[21]  
Investment, Identifier [Axis]: Interface Security Systems, L.L.C | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.92% [9],[22],[34],[36] 14.54% [10],[21],[35],[44]  
Spread (as a percent) 10.00% [9],[22],[28],[34],[36] 10.00% [10],[21],[35],[38],[44]  
PIK Rate 13.92% [9],[22],[24],[34],[36] 14.54% [10],[21],[25],[35],[44]  
Principal $ 2,392 [3],[9],[22],[34],[36] $ 2,075 [6],[10],[21],[35],[44]  
Cost 2,392 [3],[9],[22],[34],[36] 2,075 [6],[10],[21],[35],[44]  
Fair value $ 2,077 [7],[9],[22],[34],[36] $ 1,580 [8],[10],[21],[35],[44]  
Investment, Identifier [Axis]: Interface Security Systems, L.L.C | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.02% [9],[22],[26],[30],[34] 11.67% [10],[21],[35],[37],[39]  
Spread (as a percent) 7.00% [9],[22],[26],[28],[30],[34] 7.00% [10],[21],[35],[37],[38],[39]  
PIK Rate 11.02% [9],[22],[24],[26],[30],[34] 11.67% [10],[21],[25],[35],[37],[39]  
Principal $ 7,313 [3],[9],[22],[26],[30],[34] $ 7,313 [6],[10],[21],[35],[37],[39]  
Cost 7,237 [3],[9],[22],[26],[30],[34] 7,237 [6],[10],[21],[35],[37],[39]  
Fair value $ 1 [7],[9],[22],[26],[30],[34] $ 13 [8],[10],[21],[35],[37],[39]  
Investment, Identifier [Axis]: Invincible Boat Company, LLC. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.37% [9],[22],[30] 12.01% [10],[21],[37],[44]  
Spread (as a percent) 7.50% [9],[22],[28],[30] 7.50% [10],[21],[37],[38],[44]  
Principal $ 1,452 [3],[9],[22],[30] $ 1,037 [6],[10],[21],[37],[44]  
Cost 1,445 [3],[9],[22],[30] 1,033 [6],[10],[21],[37],[44]  
Fair value $ 1,319 [7],[9],[22],[30] $ 995 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Invincible Boat Company, LLC. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.37% [9],[22],[30],[58] 12.01% [10],[21],[37]  
Spread (as a percent) 7.50% [9],[22],[28],[30],[58] 7.50% [10],[21],[37],[38]  
PIK Rate [9],[22],[24],[30],[58] 3.37%    
Principal $ 16,805 [3],[9],[22],[30],[58] $ 16,771 [6],[10],[21],[37]  
Cost 16,764 [3],[9],[22],[30],[58] 16,703 [6],[10],[21],[37]  
Fair value $ 15,247 [7],[9],[22],[30],[58] $ 16,098 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 203,016 [23] 203,016 [20]  
Cost $ 2,756 [3],[23] $ 2,756 [6],[20]  
Fair value $ 2,700 [7],[23] $ 2,850 [8],[20] 2,680
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [20]   711,200  
Total Rate [20]   25.00%  
PIK Rate [20],[25]   25.00%  
Cost [6],[20]   $ 711  
Fair value   760 [8],[20] 0
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) [23] 711    
Total Rate [23] 25.00%    
PIK Rate [23],[24] 25.00%    
Cost [3],[23] $ 711    
Fair value $ 1,030 [7],[23] 760  
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) [23] 155    
Total Rate [23] 25.00%    
PIK Rate [23],[24] 25.00%    
Cost [3],[23] $ 155    
Fair value $ 155 [7],[23] $ 0  
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 13.00% [20]  
Principal $ 4,514 [3],[23] $ 4,514 [6],[20]  
Cost 4,500 [3],[23] 4,493 [6],[20]  
Fair value $ 4,500 [7],[23] $ 4,493 [8],[20] 4,487
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 13.00% [20]  
Principal $ 2,940 [3],[23] $ 2,940 [6],[20]  
Cost 2,931 [3],[23] 2,927 [6],[20]  
Fair value $ 2,931 [7],[23] $ 2,927 [8],[20] 2,922
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 13.00% [20]  
Principal $ 8,944 [3],[23] $ 8,944 [6],[20]  
Cost 8,944 [3],[23] 8,944 [6],[20]  
Fair value $ 8,944 [7],[23] $ 8,944 [8],[20] 8,944
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 13.00% [20]  
Principal $ 17,624 [3],[23] $ 17,624 [6],[20]  
Cost 17,569 [3],[23] 17,542 [6],[20]  
Fair value $ 17,569 [7],[23] $ 17,542 [8],[20] 19,503
Investment, Identifier [Axis]: Iron-Main Investments, LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate 13.00% [23] 13.00% [20]  
Principal $ 9,554 [3],[23] $ 9,842 [6],[20]  
Cost 9,421 [3],[23] 9,638 [6],[20]  
Fair value $ 9,421 [7],[23] $ 9,638 [8],[20] 10,273
Investment, Identifier [Axis]: Isagenix International, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 198,743 [16],[22] 198,743 [17],[21]  
Cost $ 0 [3],[16],[22] $ 0 [6],[17],[21]  
Fair value $ 0 [7],[16],[22] $ 0 [8],[17],[21]  
Investment, Identifier [Axis]: Isagenix International, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 2.50% [16],[22],[30],[60] 11.25% [17],[21],[37]  
Spread (as a percent) [17],[21],[37],[38]   6.60%  
PIK Rate [17],[21],[25],[37]   8.75%  
Principal $ 3,159 [3],[16],[22],[30],[60] $ 3,159 [6],[17],[21],[37]  
Cost 3,016 [3],[16],[22],[30],[60] 2,958 [6],[17],[21],[37]  
Fair value $ 458 [7],[16],[22],[30],[60] $ 663 [8],[17],[21],[37]  
Investment, Identifier [Axis]: Island Pump and Tank, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 11.25%    
Spread (as a percent) 7.00% [9],[22],[28],[30] 6.50% [10],[21],[37],[38],[40]  
Principal $ 456 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 452 [3],[9],[22],[30] (5) [6],[10],[21],[37],[40]  
Fair value $ 443 [7],[9],[22],[30] $ (5) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Island Pump and Tank, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.25% [9],[22],[30] 10.35% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30] 5.50% [10],[21],[37],[38]  
Principal $ 2,111 [3],[9],[22],[30] $ 1,735 [6],[10],[21],[37]  
Cost 2,084 [3],[9],[22],[30] 1,708 [6],[10],[21],[37]  
Fair value $ 2,048 [7],[9],[22],[30] $ 1,722 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Island Pump and Tank, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.25% [9],[22],[30] 11.35% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 2,111 [3],[9],[22],[30] $ 1,735 [6],[10],[21],[37]  
Cost 2,084 [3],[9],[22],[30] 1,708 [6],[10],[21],[37]  
Fair value $ 2,048 [7],[9],[22],[30] $ 1,722 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Island Pump and Tank, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 12.25% [9],[22],[30] 12.35% [10],[21],[37]  
Spread (as a percent) 8.00% [9],[22],[28],[30] 7.50% [10],[21],[37],[38]  
Principal $ 2,111 [3],[9],[22],[30] $ 1,735 [6],[10],[21],[37]  
Cost 2,084 [3],[9],[22],[30] 1,708 [6],[10],[21],[37]  
Fair value $ 2,048 [7],[9],[22],[30] $ 1,722 [8],[10],[21],[37]  
Investment, Identifier [Axis]: JDC Power Services, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   6.50%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (162)  
Fair value [8],[10],[21],[37],[40]   $ (162)  
Investment, Identifier [Axis]: JDC Power Services, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.83%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 60,965  
Cost [6],[10],[21],[37]   59,573  
Fair value [8],[10],[21],[37]   $ 60,336  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   1,684,211  
Cost [6],[10],[21]   $ 1,684  
Fair value [8],[10],[21]   300  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Common Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) [9],[33] 1,684,211    
Cost [3],[9],[33] $ 1,684    
Fair value $ 0 [7],[9],[33] $ 0  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Common Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) [9],[33] 842,000    
Cost [3],[9],[33] $ 842    
Fair value [7],[9],[33] $ 0    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.13% [9],[30],[33] 12.72% [10],[21],[37],[44]  
Spread (as a percent) 5.00% [9],[28],[30],[33] 8.00% [10],[21],[37],[38],[44]  
Principal $ 6,316 [3],[9],[30],[33] $ 8,421 [6],[10],[21],[37],[44]  
Cost 6,316 [3],[9],[30],[33] 8,354 [6],[10],[21],[37],[44]  
Fair value $ 6,316 [7],[9],[30],[33] 7,977 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.25%    
Fair value $ 0 7,977  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.25%    
Fair value $ 0 33,879  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.25%    
Fair value $ 0 3,176  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate 10.13%    
Spread (as a percent) 6.00%    
PIK Rate 10.13%    
Fair value $ 36,429 0  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.5      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
PIK Rate 15.00%    
Fair value $ 939 0  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 1.6      
Schedule of Investments [Line Items]      
Total Rate 9.13%    
Spread (as a percent) 5.00%    
Fair value $ 6,316 $ 0  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.13% [9],[30],[33] 12.58% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[28],[30],[33] 8.00% [10],[21],[37],[38]  
PIK Rate [9],[24],[30],[33] 10.13%    
Principal $ 36,513 [3],[9],[30],[33] $ 35,763 [6],[10],[21],[37]  
Cost 36,513 [3],[9],[30],[33] 35,471 [6],[10],[21],[37]  
Fair value $ 36,429 [7],[9],[30],[33] $ 33,879 [8],[10],[21],[37]  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 15.00% [9],[26],[33] 12.58% [10],[21],[37]  
Spread (as a percent) [10],[21],[37],[38]   8.00%  
PIK Rate [9],[24],[26],[33] 15.00%    
Principal $ 16,842 [3],[9],[26],[33] $ 3,347 [6],[10],[21],[37]  
Cost 6,205 [3],[9],[26],[33] 3,278 [6],[10],[21],[37]  
Fair value $ 939 [7],[9],[26],[33] $ 3,176 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 2,826,667 [9],[22] 2,826,667 [10],[21]  
Cost $ 110 [3],[9],[22] $ 110 [6],[10],[21]  
Fair value $ 750 [7],[9],[22] $ 870 [8],[10],[21]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.01% [9],[22],[30],[58] 12.18% [10],[21],[37],[59]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[58] 7.50% [10],[21],[37],[38],[59]  
Principal $ 751 [3],[9],[22],[30],[58] $ 792 [6],[10],[21],[37],[59]  
Cost 747 [3],[9],[22],[30],[58] 783 [6],[10],[21],[37],[59]  
Fair value $ 751 [7],[9],[22],[30],[58] $ 792 [8],[10],[21],[37],[59]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.23% [9],[22],[30],[58] 12.19% [10],[21],[37],[59]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[58] 7.50% [10],[21],[37],[38],[59]  
Principal $ 625 [3],[9],[22],[30],[58] $ 627 [6],[10],[21],[37],[59]  
Cost 622 [3],[9],[22],[30],[58] 620 [6],[10],[21],[37],[59]  
Fair value $ 625 [7],[9],[22],[30],[58] $ 627 [8],[10],[21],[37],[59]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.11% [9],[22],[30],[58] 12.18% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30],[58] 7.50% [10],[21],[37],[38]  
Principal $ 667 [3],[9],[22],[30],[58] $ 60 [6],[10],[21],[37]  
Cost 658 [3],[9],[22],[30],[58] 48 [6],[10],[21],[37]  
Fair value $ 667 [7],[9],[22],[30],[58] $ 60 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 10.84% [9],[22],[30] 12.18% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 7.50% [10],[21],[37],[38]  
Principal $ 1,738 [3],[9],[22],[30] $ 1,843 [6],[10],[21],[37]  
Cost 1,728 [3],[9],[22],[30] 1,821 [6],[10],[21],[37]  
Fair value $ 1,738 [7],[9],[22],[30] $ 1,843 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 627 [31],[33] 627 [15],[32]  
Cost $ 811 [3],[31],[33] $ 811 [6],[15],[32]  
Fair value $ 11,540 [7],[31],[33] $ 11,820 [8],[15],[32] 12,420
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.75% [28],[29],[30],[33] 6.75% [15],[37],[38],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost 0 [3],[29],[30],[33] 0 [6],[15],[37],[40]  
Fair value $ 0 [7],[29],[30],[33] $ 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.75% [30],[33] 14.50% [15],[37]  
Spread (as a percent) 6.75% [28],[30],[33] 6.75% [15],[37],[38]  
Principal $ 878 [3],[30],[33] $ 1,498 [6],[15],[37]  
Cost 878 [3],[30],[33] 1,498 [6],[15],[37]  
Fair value $ 878 [7],[30],[33] $ 1,498 [8],[15],[37] 1,998
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [16],[22] 5,461,019    
Cost [3],[16],[22] $ 200    
Fair value [7],[16],[22] $ 350    
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Common Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) [17],[21]   472,579  
Cost [6],[17],[21]   $ 4,429  
Fair value [8],[17],[21]   $ 0  
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Common Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) [17],[21]   5,461,019  
Cost [6],[17],[21]   $ 200  
Fair value [8],[17],[21]   $ 140  
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.94% [16],[22],[30] 21.59% [17],[21],[35],[37],[39]  
Spread (as a percent) 8.00% [16],[22],[28],[30] 16.00% [17],[21],[35],[37],[38],[39]  
PIK Rate [17],[21],[25],[35],[37],[39]   21.59%  
Principal $ 1,833 [3],[16],[22],[30] $ 1,134 [6],[17],[21],[35],[37],[39]  
Cost 1,833 [3],[16],[22],[30] 1,134 [6],[17],[21],[35],[37],[39]  
Fair value $ 1,833 [7],[16],[22],[30] $ 0 [8],[17],[21],[35],[37],[39]  
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.94% [16],[22],[30] 21.59% [17],[21],[35],[37],[39]  
Spread (as a percent) 8.00% [16],[22],[28],[30] 16.00% [17],[21],[35],[37],[38],[39]  
PIK Rate [17],[21],[25],[35],[37],[39]   21.59%  
Principal $ 1,369 [3],[16],[22],[30] $ 1,091 [6],[17],[21],[35],[37],[39]  
Cost 1,369 [3],[16],[22],[30] 1,091 [6],[17],[21],[35],[37],[39]  
Fair value 1,369 [7],[16],[22],[30] $ 0 [8],[17],[21],[35],[37],[39]  
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [17],[21],[37]   13.21%  
Spread (as a percent) [17],[21],[37],[38]   8.75%  
PIK Rate [17],[21],[25],[37]   6.00%  
Principal [6],[17],[21],[37]   $ 1,770  
Cost [6],[17],[21],[37]   1,770  
Fair value [8],[17],[21],[37]   $ 1,770  
Investment, Identifier [Axis]: Joerns Healthcare, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [17],[21],[37]   13.18%  
Spread (as a percent) [17],[21],[37],[38]   8.75%  
PIK Rate [17],[21],[25],[37]   13.18%  
Principal [6],[17],[21],[37]   $ 1,314  
Cost [6],[17],[21],[37]   1,314  
Fair value [8],[17],[21],[37]   1,314  
Investment, Identifier [Axis]: Johnson Downie Opco, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Fair value $ 24,340 14,550 9,620
Investment, Identifier [Axis]: Johnson Downie Opco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
Fair value $ 1,800 0 0
Investment, Identifier [Axis]: Johnson Downie Opco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value $ 0 21,507 24,207
Investment, Identifier [Axis]: Johnson Downie Opco, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
Fair value $ 25,107 $ 0  
Investment, Identifier [Axis]: JorVet Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 109,926 [31],[33] 109,926 [15],[32]  
Cost $ 10,993 [3],[31],[33] $ 10,993 [6],[15],[32]  
Fair value $ 10,990 [7],[31],[33] $ 13,180 [8],[15],[32] 10,741
Investment, Identifier [Axis]: JorVet Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [33] 12.00% [15]  
Principal $ 23,321 [3],[33] $ 23,321 [6],[15]  
Cost 23,263 [3],[33] 23,216 [6],[15]  
Fair value $ 23,263 [7],[33] $ 23,216 [8],[15] 25,483
Investment, Identifier [Axis]: KBK Industries, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 325 [31],[33] 325 [15]  
Cost $ 783 [3],[31],[33] $ 783 [6],[15]  
Fair value $ 18,180 [7],[31],[33] $ 25,180 [8],[15] 22,770
Investment, Identifier [Axis]: KBK Industries, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 9.50% [33] 9.00% [15]  
Principal $ 7,200 [3],[33] $ 3,700 [6],[15]  
Cost 7,166 [3],[33] 3,676 [6],[15]  
Fair value 7,200 [7],[33] 3,700 [8],[15] 4,700
Investment, Identifier [Axis]: KBK Industries, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value $ 0 3,700  
Investment, Identifier [Axis]: KBK Industries, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.50%    
Fair value $ 7,200 0  
Investment, Identifier [Axis]: KMS, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[23] 9,213    
Cost [3],[9],[23] $ 4,890    
Fair value $ 6,270 [7],[9],[23] $ 0  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[39]   14.50%  
Spread (as a percent) 5.50% [9],[23],[28],[29],[30] 9.75% [10],[21],[37],[38],[39]  
Principal $ 0 [3],[9],[23],[29],[30] $ 1,028 [6],[10],[21],[37],[39]  
Cost (40) [3],[9],[23],[29],[30] 1,002 [6],[10],[21],[37],[39]  
Fair value $ (40) [7],[9],[23],[29],[30] 662 [8],[10],[21],[37],[39]  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.75%    
Fair value $ 0 663  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.75%    
Fair value $ 0 4,779  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.75%    
Fair value $ 0 450  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.75%    
Fair value $ 0 440  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.5      
Schedule of Investments [Line Items]      
Spread (as a percent) 9.75%    
Fair value $ 0 0  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.6      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Fair value $ 1,146 0  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.7      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Fair value $ 1,007 0  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 1.8      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.50%    
Fair value $ (40) $ 0  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% [9],[23] 14.23% [10],[21],[37]  
Spread (as a percent) [10],[21],[37],[38]   9.75%  
PIK Rate [10],[21],[25],[37]   14.23%  
Principal $ 1,171 [3],[9],[23] $ 450 [6],[10],[21],[37]  
Cost 1,146 [3],[9],[23] 450 [6],[10],[21],[37]  
Fair value $ 1,146 [7],[9],[23] $ 450 [8],[10],[21],[37]  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.50% [9],[23] 14.23% [10],[21],[37]  
Spread (as a percent) [10],[21],[37],[38]   9.75%  
PIK Rate [10],[21],[25],[37]   14.23%  
Principal $ 1,007 [3],[9],[23] $ 440 [6],[10],[21],[37]  
Cost 1,007 [3],[9],[23] 440 [6],[10],[21],[37]  
Fair value $ 1,007 [7],[9],[23] $ 440 [8],[10],[21],[37]  
Investment, Identifier [Axis]: KMS, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[39]   14.50%  
Spread (as a percent) [10],[21],[37],[38],[39]   9.75%  
Principal [6],[10],[21],[37],[39]   $ 7,410  
Cost [6],[10],[21],[37],[39]   7,340  
Fair value [8],[10],[21],[37],[39]   $ 4,779  
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 800 [31],[33],[45] 800 [15],[32],[46]  
Cost $ 992 [3],[31],[33],[45] $ 992 [6],[15],[32],[46]  
Fair value $ 4,190 [7],[31],[33],[45] $ 2,710 [8],[15],[32],[46] 2,730
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 581 [31],[33] 581 [15]  
Cost $ 12,240 [3],[31],[33] $ 12,240 [6],[15]  
Fair value $ 17,180 [7],[31],[33] $ 12,240 [8],[15] 9,690
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.50% [33] 11.50% [15]  
Principal $ 10,199 [3],[33] $ 14,999 [6],[15]  
Cost 10,195 [3],[33] 14,987 [6],[15]  
Fair value $ 10,195 [7],[33] $ 14,987 [8],[15] 19,774
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.00% [33] 9.00% [15]  
Principal $ 3,910 [3],[33] $ 3,959 [6],[15]  
Cost 3,878 [3],[33] 3,926 [6],[15]  
Fair value $ 3,878 [7],[33] $ 3,926 [8],[15] 3,805
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P. | LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 2.27% [11],[12],[22],[31],[49] 2.27% [13],[14],[21],[50]  
Cost $ 0 [3],[11],[12],[22],[31],[49] $ 1,746 [6],[13],[14],[21],[50]  
Fair value $ 792 [7],[11],[12],[22],[31],[49] $ 2,926 [8],[13],[14],[21],[50]  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.89%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 1,156  
Cost [6],[10],[21],[37]   1,156  
Fair value [8],[10],[21],[37]   $ 1,156  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.92%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 8,575  
Cost [6],[10],[21],[37]   8,513  
Fair value [8],[10],[21],[37]   $ 8,575  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.71%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 5,485  
Cost [6],[10],[21],[37]   5,444  
Fair value [8],[10],[21],[37]   $ 5,485  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.71%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 2,878  
Cost [6],[10],[21],[37]   2,857  
Fair value [8],[10],[21],[37]   $ 2,878  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.92%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 1,118  
Cost [6],[10],[21],[37]   1,110  
Fair value [8],[10],[21],[37]   $ 1,118  
Investment, Identifier [Axis]: LL Management, Inc. | Secured Debt 6      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.71%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
Principal [6],[10],[21],[37]   $ 11,326  
Cost [6],[10],[21],[37]   11,242  
Fair value [8],[10],[21],[37]   $ 11,326  
Investment, Identifier [Axis]: LLFlex, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.14% [9],[22],[30] 12.74% [10],[21],[37]  
Spread (as a percent) 8.00% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
PIK Rate 3.00% [9],[22],[24],[30] 3.00% [10],[21],[25],[37]  
Principal $ 4,226 [3],[9],[22],[30] $ 4,133 [6],[10],[21],[37]  
Cost 4,207 [3],[9],[22],[30] 4,083 [6],[10],[21],[37]  
Fair value $ 3,328 [7],[9],[22],[30] 3,316 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Legacy Swim Group | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 366    
Cost [3],[31],[33] $ 14,996    
Fair value $ 14,996 [7],[31],[33] 0  
Investment, Identifier [Axis]: Legacy Swim Group | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal [3],[33] $ 32,000    
Cost [3],[33] 31,691    
Fair value $ 31,691 [7],[33] $ 0  
Investment, Identifier [Axis]: Lightbox Holdings, L.P. | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [17],[21]   9.44%  
Spread (as a percent) [17],[21],[38]   5.00%  
Principal [6],[17],[21]   $ 15,525  
Cost [6],[17],[21]   15,450  
Fair value [8],[17],[21]   $ 15,059  
Investment, Identifier [Axis]: Logix Acquisition Company, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[35],[37]   12.25%  
Spread (as a percent) [10],[21],[35],[37],[38]   4.25%  
Principal [6],[10],[21],[35],[37]   $ 24,809  
Cost [6],[10],[21],[35],[37]   24,809  
Fair value [8],[10],[21],[35],[37]   $ 19,739  
Investment, Identifier [Axis]: Logix Acquisition Company, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 11.41%    
Spread (as a percent) [9],[22],[28],[30] 7.50%    
PIK Rate [9],[22],[24],[30] 2.75%    
Principal [3],[9],[22],[30] $ 44,135    
Cost [3],[9],[22],[30] 43,451    
Fair value [7],[9],[22],[30] 44,135    
Investment, Identifier [Axis]: Logix Acquisition Company, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Principal [3],[9],[22] 2,963    
Cost [3],[9],[22] 2,287    
Fair value [7],[9],[22] $ 2,204    
Investment, Identifier [Axis]: Looking Glass Investments, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3 [11],[12],[22] 3 [13],[14],[21]  
Cost $ 125 [3],[11],[12],[22] $ 125 [6],[13],[14],[21]  
Fair value $ 25 [7],[11],[12],[22] 25 [8],[13],[14],[21]  
Investment, Identifier [Axis]: MCT Purchaserco Holding Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[11],[18],[22] 1,590,287    
Cost [3],[9],[11],[18],[22] $ 1,139    
Fair value [7],[9],[11],[18],[22] $ 1,139    
Investment, Identifier [Axis]: MCT Purchaserco Holding Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 9.36%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 5.50%    
Principal [3],[9],[11],[18],[22],[30] $ 6,097    
Cost [3],[9],[11],[18],[22],[30] 5,985    
Fair value [7],[9],[11],[18],[22],[30] $ 5,985    
Investment, Identifier [Axis]: MCT Purchaserco Holding Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 9.29%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 5.50%    
Principal [3],[9],[11],[18],[22],[30] $ 39,755    
Cost [3],[9],[11],[18],[22],[30] 39,364    
Fair value [7],[9],[11],[18],[22],[30] $ 39,364    
Investment, Identifier [Axis]: MH Corbin Holding LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Fair value   0 330
Investment, Identifier [Axis]: MH Corbin Holding LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Fair value   0 0
Investment, Identifier [Axis]: MH Corbin Holding LLC | Secured Debt      
Schedule of Investments [Line Items]      
Fair value   $ 0 5,022
Investment, Identifier [Axis]: MS Private Loan Fund I, LP | LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 14.51% [11],[12],[31],[33],[49] 14.51% [13],[14],[15],[32],[50]  
Cost $ 15,000 [3],[11],[12],[31],[33],[49] $ 14,250 [6],[13],[14],[15],[32],[50]  
Fair value $ 14,697 [7],[11],[12],[31],[33],[49] $ 14,034 [8],[13],[14],[15],[32],[50] 14,527
Investment, Identifier [Axis]: MS Private Loan Fund I, LP | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 6.88% [11],[12],[30],[33] 5.00% [13],[14],[15]  
Spread (as a percent) [11],[12],[28],[30],[33] 3.00%    
Principal $ 12,000 [3],[11],[12],[30],[33] $ 1,600 [6],[13],[14],[15]  
Cost 12,000 [3],[11],[12],[30],[33] 1,600 [6],[13],[14],[15]  
Fair value $ 12,000 [7],[11],[12],[30],[33] $ 1,600 [8],[13],[14],[15] 0
Investment, Identifier [Axis]: MS Private Loan Fund II, LP | LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 12.46% [11],[12],[31],[33],[49] 13.02% [13],[14],[15],[32],[50]  
Cost $ 10,500 [3],[11],[12],[31],[33],[49] $ 7,449 [6],[13],[14],[15],[32],[50]  
Fair value $ 11,064 [7],[11],[12],[31],[33],[49] $ 7,843 [8],[13],[14],[15],[32],[50] 1,561
Investment, Identifier [Axis]: MS Private Loan Fund II, LP | Secured Debt      
Schedule of Investments [Line Items]      
Spread (as a percent) 3.00% [11],[12],[28],[29],[30],[33] 3.00% [13],[14],[15],[37],[38],[40]  
Principal $ 0 [3],[11],[12],[29],[30],[33] $ 0 [6],[13],[14],[15],[37],[40]  
Cost (84) [3],[11],[12],[29],[30],[33] (59) [6],[13],[14],[15],[37],[40]  
Fair value $ (84) [7],[11],[12],[29],[30],[33] $ (59) [8],[13],[14],[15],[37],[40]  
Investment, Identifier [Axis]: MS Private Loan Fund II, LP | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent)   3.50%  
Fair value   $ (59) 23,367
Investment, Identifier [Axis]: MSC Adviser I, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (as a percent) 100.00% [31],[33],[61] 100.00% [15],[32],[62]  
Cost $ 29,500 [3],[31],[33],[61] $ 29,500 [6],[15],[32],[62]  
Fair value $ 255,020 [7],[31],[33],[61] $ 246,000 [8],[15],[32],[62] 174,063
Investment, Identifier [Axis]: MSC Income Fund, Inc. | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,642,635 [11],[12],[31],[33] 1,085,111 [13],[14],[15],[32]  
Cost $ 25,082 [3],[11],[12],[31],[33] $ 17,000 [6],[13],[14],[15],[32]  
Fair value $ 21,412 [7],[11],[12],[31],[33] 16,810 [8],[13],[14],[15],[32] 10,025
Investment, Identifier [Axis]: MVI MSO, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (as a percent) [31],[33] 27000.00%    
Cost [3],[31],[33] $ 2,700    
Fair value $ 4,770 [7],[31],[33] 0  
Investment, Identifier [Axis]: MVI MSO, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal [3],[33] $ 9,850    
Cost [3],[33] 9,768    
Fair value $ 9,768 [7],[33] $ 0  
Investment, Identifier [Axis]: Mako Steel, LP | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   7.50%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (15)  
Fair value [8],[10],[21],[37],[40]   $ 0  
Investment, Identifier [Axis]: Mako Steel, LP | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   12.00%  
Spread (as a percent) [10],[21],[37],[38]   7.50%  
Principal [6],[10],[21],[37]   $ 18,973  
Cost [6],[10],[21],[37]   18,822  
Fair value [8],[10],[21],[37]   $ 18,973  
Investment, Identifier [Axis]: Metalforming Holdings, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,537,219 [31],[33] 1,537,219 [15]  
Cost $ 1,537 [3],[31],[33] $ 1,537 [6],[15]  
Fair value $ 9,770 [7],[31],[33] $ 6,850 [8],[15] 1,500
Investment, Identifier [Axis]: Metalforming Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 5,915,585 [31],[33] 5,915,585 [15],[32]  
Total Rate 8.00% [31],[33] 8.00% [15],[32]  
PIK Rate 8.00% [24],[31],[33] 8.00% [15],[25],[32]  
Cost $ 5,916 [3],[31],[33] $ 5,916 [6],[15],[32]  
Fair value 5,916 [7],[31],[33] 6,397 [8],[15],[32] 6,035
Investment, Identifier [Axis]: Metalforming Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33],[34] 0 [6],[15],[40]  
Cost 0 [3],[29],[33],[34] (11) [6],[15],[40]  
Fair value $ 0 [7],[29],[33],[34] $ (11) [8],[15],[40] 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 8.75% [33] 9.75% [15]  
Principal $ 17,237 [3],[33] $ 20,961 [6],[15]  
Cost 17,175 [3],[33] 20,844 [6],[15]  
Fair value $ 17,237 [7],[33] $ 20,844 [8],[15] 23,623
Investment, Identifier [Axis]: Microbe Formulas, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.50% [9],[22],[28],[29],[30] 5.75% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (27) [3],[9],[22],[29],[30] (39) [6],[10],[21],[37],[40]  
Fair value $ (27) [7],[9],[22],[29],[30] $ (39) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Microbe Formulas, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.32% [9],[22],[30] 10.22% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 5.75% [10],[21],[37],[38]  
Principal $ 11,023 [3],[9],[22],[30] $ 11,135 [6],[10],[21],[37]  
Cost 10,920 [3],[9],[22],[30] 10,985 [6],[10],[21],[37]  
Fair value $ 11,023 [7],[9],[22],[30] $ 11,135 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Microbe Formulas, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.32% [9],[22],[30] 10.21% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 5.75% [10],[21],[37],[38]  
Principal $ 13,886 [3],[9],[22],[30] $ 19,828 [6],[10],[21],[37]  
Cost 13,779 [3],[9],[22],[30] 19,606 [6],[10],[21],[37]  
Fair value $ 13,886 [7],[9],[22],[30] $ 19,828 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[20],[46]   66,306  
Cost [6],[10],[20],[46]   $ 13,840  
Fair value   13,840 [8],[10],[20],[46] 0
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[23],[31],[45] 66,306    
Cost [3],[9],[23],[31],[45] $ 14,946    
Fair value $ 12,557 [7],[9],[23],[31],[45] $ 13,840  
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[20],[37],[38],[40]   5.50%  
Principal [6],[10],[20],[37],[40]   $ 0  
Cost [6],[10],[20],[37],[40]   0  
Fair value [8],[10],[20],[37],[40]   $ 0  
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[23],[30] 9.81%    
Spread (as a percent) 5.50% [9],[23],[28],[30] 5.50%  
PIK Rate [9],[23],[24],[30] 9.81%    
Principal [3],[9],[23],[30] $ 2,903    
Cost [3],[9],[23],[30] 2,903    
Fair value $ 2,796 [7],[9],[23],[30] $ 0 0
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[23],[30],[58] 9.32%    
Spread (as a percent) 5.50% [9],[23],[28],[30],[58] 7.00%  
PIK Rate [9],[23],[24],[30],[58] 9.32%    
Principal [3],[9],[23],[30],[58] $ 1,729    
Cost [3],[9],[23],[30],[58] 1,729    
Fair value $ 1,664 [7],[9],[23],[30],[58] $ 0 17,524
Investment, Identifier [Axis]: Mini Melts of America, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 524,888 [9],[22] 515,576 [10],[21]  
Cost $ 525 [3],[9],[22] $ 516 [6],[10],[21]  
Fair value $ 280 [7],[9],[22] $ 430 [8],[10],[21]  
Investment, Identifier [Axis]: Mini Melts of America, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.06% [9],[22],[30],[36] 10.74% [10],[21],[37],[44]  
Spread (as a percent) 6.25% [9],[22],[28],[30],[36] 6.25% [10],[21],[37],[38],[44]  
Principal $ 1,425 [3],[9],[22],[30],[36] $ 575 [6],[10],[21],[37],[44]  
Cost 1,400 [3],[9],[22],[30],[36] 541 [6],[10],[21],[37],[44]  
Fair value $ 1,361 [7],[9],[22],[30],[36] $ 575 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Mini Melts of America, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.05% [9],[22],[30],[58] 10.77% [10],[21],[37],[59]  
Spread (as a percent) 6.25% [9],[22],[28],[30],[58] 6.25% [10],[21],[37],[38],[59]  
Principal $ 1,305 [3],[9],[22],[30],[58] $ 1,315 [6],[10],[21],[37],[59]  
Cost 1,285 [3],[9],[22],[30],[58] 1,288 [6],[10],[21],[37],[59]  
Fair value $ 1,246 [7],[9],[22],[30],[58] $ 1,315 [8],[10],[21],[37],[59]  
Investment, Identifier [Axis]: Mini Melts of America, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.07% [9],[22],[30] 9.76% [10],[21],[37]  
Spread (as a percent) 5.25% [9],[22],[28],[30] 5.25% [10],[21],[37],[38]  
Principal $ 4,833 [3],[9],[22],[30] $ 4,904 [6],[10],[21],[37]  
Cost 4,764 [3],[9],[22],[30] 4,811 [6],[10],[21],[37]  
Fair value $ 4,615 [7],[9],[22],[30] $ 4,904 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Mini Melts of America, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 11.07% [9],[22],[30] 11.76% [10],[21],[37]  
Spread (as a percent) 7.25% [9],[22],[28],[30] 7.25% [10],[21],[37],[38]  
Principal $ 4,833 [3],[9],[22],[30] $ 4,904 [6],[10],[21],[37]  
Cost 4,762 [3],[9],[22],[30] 4,807 [6],[10],[21],[37]  
Fair value $ 4,597 [7],[9],[22],[30] 4,904 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Mission Critical Group | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 1,234    
Cost [3],[9],[22] $ 1,234    
Fair value [7],[9],[22] $ 15,530    
Investment, Identifier [Axis]: Mission Critical Group | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.50%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (196)    
Fair value [7],[9],[22],[29],[30] $ (196)    
Investment, Identifier [Axis]: Mission Critical Group | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.33%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 14,698    
Cost [3],[9],[22],[30] 14,274    
Fair value [7],[9],[22],[30] $ 14,698    
Investment, Identifier [Axis]: Mission Critical Group | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.23%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 66,099    
Cost [3],[9],[22],[30] 64,972    
Fair value [7],[9],[22],[30] $ 66,099    
Investment, Identifier [Axis]: Moffitt Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33] 14,300    
Cost [3],[33] $ 14,300    
Fair value $ 15,560 [7],[33] 0  
Investment, Identifier [Axis]: Moffitt Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal [3],[33] $ 34,125    
Cost [3],[33] 33,840    
Fair value $ 33,840 [7],[33] $ 0  
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 163,282 [23],[31] 163,282 [20],[32]  
Total Rate 12.00% [23],[31] 12.00% [20],[32]  
PIK Rate 12.00% [23],[24],[31] 12.00% [20],[25],[32]  
Cost $ 1,924 [3],[23],[31] $ 1,707 [6],[20],[32]  
Fair value $ 2,112 [7],[23],[31] $ 1,707 [8],[20],[32] 0
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.00% [23] 14.00% [20]  
Principal $ 8,160 [3],[23] $ 9,600 [6],[20]  
Cost 7,696 [3],[23] 8,967 [6],[20]  
Fair value $ 7,696 [7],[23] $ 8,967 [8],[20] 0
Investment, Identifier [Axis]: MoneyThumb Acquisition, LLC | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 59,368 [23],[43] 59,368 [20],[27]  
Cost $ 594 [3],[23],[43] $ 594 [6],[20],[27]  
Fair value $ 800 [7],[23],[43] $ 594 [8],[20],[27] 0
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 106,608,424 [9],[11],[18],[22] 44,445,814 [10],[13],[19],[21]  
Cost $ 1,150 [3],[9],[11],[18],[22] $ 889 [6],[10],[13],[19],[21]  
Fair value $ 707 [7],[9],[11],[18],[22] $ 796 [8],[10],[13],[19],[21]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.18% [9],[11],[18],[22],[30] 11.59% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.25% [9],[11],[18],[22],[28],[30] 7.00% [10],[13],[19],[21],[37],[38]  
Principal $ 4,101 [3],[9],[11],[18],[22],[30] $ 4,101 [6],[10],[13],[19],[21],[37]  
Cost 4,080 [3],[9],[11],[18],[22],[30] 4,065 [6],[10],[13],[19],[21],[37]  
Fair value $ 4,417 [7],[9],[11],[18],[22],[30] $ 3,907 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.18% [9],[11],[18],[22],[30] 11.59% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.25% [9],[11],[18],[22],[28],[30] 7.00% [10],[13],[19],[21],[37],[38]  
Principal $ 10,661 [3],[9],[11],[18],[22],[30] $ 10,767 [6],[10],[13],[19],[21],[37]  
Cost 10,602 [3],[9],[11],[18],[22],[30] 10,666 [6],[10],[13],[19],[21],[37]  
Fair value $ 12,399 [7],[9],[11],[18],[22],[30] $ 11,079 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.18% [9],[11],[18],[22],[30] 11.59% [10],[13],[19],[21],[37]  
Spread (as a percent) 6.25% [9],[11],[18],[22],[28],[30] 7.00% [10],[13],[19],[21],[37],[38]  
Principal $ 17,933 [3],[9],[11],[18],[22],[30] $ 18,103 [6],[10],[13],[19],[21],[37]  
Cost 17,839 [3],[9],[11],[18],[22],[30] 17,943 [6],[10],[13],[19],[21],[37]  
Fair value $ 17,933 [7],[9],[11],[18],[22],[30] $ 18,103 [8],[10],[13],[19],[21],[37]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22],[30] 10.18%    
Spread (as a percent) [9],[11],[18],[22],[28],[30] 6.25%    
Principal [3],[9],[11],[18],[22],[30] $ 1,231    
Cost [3],[9],[11],[18],[22],[30] 1,214    
Fair value [7],[9],[11],[18],[22],[30] $ 1,244    
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[18],[22] 8.00%    
PIK Rate [9],[11],[18],[22],[24] 8.00%    
Principal [3],[9],[11],[18],[22] $ 81    
Cost [3],[9],[11],[18],[22] 81    
Fair value [7],[9],[11],[18],[22] 81    
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Unsecured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[19],[21]   8.00%  
PIK Rate [10],[13],[19],[21],[25]   8.00%  
Principal [6],[10],[13],[19],[21]   $ 114  
Cost [6],[10],[13],[19],[21]   114  
Fair value [8],[10],[13],[19],[21]   $ 114  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Unsecured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[19],[21]   8.00%  
PIK Rate [10],[13],[19],[21],[25]   8.00%  
Principal [6],[10],[13],[19],[21]   $ 54  
Cost [6],[10],[13],[19],[21]   54  
Fair value [8],[10],[13],[19],[21]   $ 54  
Investment, Identifier [Axis]: MonitorUS Holding, LLC | Unsecured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[19],[21]   8.00%  
PIK Rate [10],[13],[19],[21],[25]   8.00%  
Principal [6],[10],[13],[19],[21]   $ 107  
Cost [6],[10],[13],[19],[21]   107  
Fair value [8],[10],[13],[19],[21]   $ 107  
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [15],[32]   5,873  
Cost [6],[15],[32]   $ 2,720  
Fair value 0 26,370 [8],[15],[32] 26,390
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [6],[15],[40]   0  
Cost [6],[15],[40]   0  
Fair value 0 $ 0 [8],[15],[40] 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15]   10.00%  
Principal [6],[15]   $ 5,746  
Cost [6],[15]   5,731  
Fair value $ 0 $ 5,746 [8],[15] 5,746
Investment, Identifier [Axis]: NAPCO Precast, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [15]   2,955  
Cost [6],[15]   $ 2,975  
Fair value   9,050 [8],[15] 11,730
Investment, Identifier [Axis]: NAPCO Precast, LLC | Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 2,955    
Cost [3],[31],[33] $ 4,145    
Fair value $ 14,480 [7],[31],[33] 9,050  
Investment, Identifier [Axis]: NAPCO Precast, LLC | Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) [33],[45] 468    
Cost [3],[33],[45] $ 0    
Fair value $ 568 [7],[33],[45] 0  
Investment, Identifier [Axis]: NRP Jones, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33],[45] 927,581    
Cost [3],[33],[45] $ 928    
Fair value $ 928 [7],[33],[45] $ 0  
Investment, Identifier [Axis]: NRP Jones, LLC | Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 74,761 [33] 74,761 [15]  
Cost $ 114 [3],[33] $ 114 [6],[15]  
Fair value 0 [7],[33] 94 [8],[15]  
Investment, Identifier [Axis]: NRP Jones, LLC | Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 0 2,696 1,466
Investment, Identifier [Axis]: NRP Jones, LLC | Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 94 53
Investment, Identifier [Axis]: NRP Jones, LLC | Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 74,761 [33] 74,761 [15]  
Cost $ 3,823 [3],[33] $ 3,823 [6],[15]  
Fair value $ 0 [7],[33] 2,696 [8],[15]  
Investment, Identifier [Axis]: NRP Jones, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33] 495,000    
Cost [3],[33] $ 482    
Fair value $ 0 [7],[33] $ 0  
Investment, Identifier [Axis]: NRP Jones, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [26],[33] 12.00% [15]  
Principal $ 2,191 [3],[26],[33] $ 2,191 [6],[15]  
Cost 2,161 [3],[26],[33] 2,178 [6],[15]  
Fair value 474 [7],[26],[33] 2,178 [8],[15] 2,080
Investment, Identifier [Axis]: Nearshore AcquireCo, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Cost [3],[23] 5,260    
Fair value 5,260 [7],[23] 0  
Investment, Identifier [Axis]: Nearshore AcquireCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (24)    
Fair value (24) [7],[23],[29] 0  
Investment, Identifier [Axis]: Nearshore AcquireCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (61)    
Fair value $ (61) [7],[23],[29] 0  
Investment, Identifier [Axis]: Nearshore AcquireCo, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 21,900    
Cost [3],[23] 21,688    
Fair value 21,688 [7],[23] $ 0  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [20],[32]   6,987  
Cost [6],[20],[32]   $ 6,987  
Fair value $ 0 $ 32,040 [8],[20],[32] 15,020
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [20],[37],[38],[40]   7.00%  
Principal [6],[20],[37],[40]   $ 0  
Cost [6],[20],[37],[40]   (7)  
Fair value [8],[20],[37],[40]   $ 0  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Spread (as a percent) 7.00% 7.00%  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value 0 62,200  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.2.1      
Schedule of Investments [Line Items]      
Fair value   0 25,794
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Fair value $ 0 4,650  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.3.1      
Schedule of Investments [Line Items]      
Fair value   $ 0 10,500
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate   12.50%  
Fair value   $ 62,200 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 1.5      
Schedule of Investments [Line Items]      
Total Rate   12.50%  
Fair value   $ 4,650 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [20]   12.50%  
Principal [6],[20]   $ 4,650  
Cost [6],[20]   4,479  
Fair value [8],[20]   $ 4,650  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [20]   12.50%  
Principal [6],[20]   $ 62,200  
Cost [6],[20]   62,085  
Fair value [8],[20]   $ 62,200  
Investment, Identifier [Axis]: Nello Industries Investco, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [15],[32]   364,579  
Cost [6],[15],[32]   $ 12,120  
Fair value   15,560 [8],[15],[32] 0
Investment, Identifier [Axis]: Nello Industries Investco, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 336,803    
Cost [3],[31],[33] $ 11,197    
Fair value $ 23,330 [7],[31],[33] $ 15,560  
Investment, Identifier [Axis]: Nello Industries Investco, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33] 12.50%    
Principal [3],[33] $ 32,072    
Cost [3],[33] 31,867    
Fair value [7],[33] $ 32,072    
Investment, Identifier [Axis]: Nello Industries Investco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.50% 6.50% [15],[37],[38],[40]  
Principal [6],[15],[37],[40]   $ 0  
Cost [6],[15],[37],[40]   (16)  
Fair value $ 0 $ (16) [8],[15],[37],[40] 0
Investment, Identifier [Axis]: Nello Industries Investco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% 13.50% [15]  
Principal [6],[15]   $ 27,200  
Cost [6],[15]   26,959  
Fair value $ 32,072 $ 26,959 [8],[15] 0
Investment, Identifier [Axis]: NexRev LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 103,144,186 [31],[33] 103,144,186 [15],[32]  
Cost $ 8,213 [3],[31],[33] $ 8,213 [6],[15],[32]  
Fair value 12,870 [7],[31],[33] 11,910 [8],[15],[32] 6,350
Investment, Identifier [Axis]: NexRev LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [6],[15],[40]   0  
Cost [6],[15],[40]   0  
Fair value 0 $ 0 [8],[15],[40] 0
Investment, Identifier [Axis]: NexRev LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [15]   9.00%  
Principal [6],[15]   $ 9,811  
Cost [6],[15]   9,803  
Fair value $ 0 $ 9,811 [8],[15] 9,751
Investment, Identifier [Axis]: NinjaTrader, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   6.50%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (6)  
Fair value [8],[10],[21],[37],[40]   $ (6)  
Investment, Identifier [Axis]: NinjaTrader, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.24%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 28,243  
Cost [6],[10],[21],[37]   28,016  
Fair value [8],[10],[21],[37]   $ 28,243  
Investment, Identifier [Axis]: NuStep, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,400 [33] 2,400 [15]  
Cost $ 2,785 [3],[33] $ 2,785 [6],[15]  
Fair value 6,110 [7],[33] 6,000 [8],[15]  
Investment, Identifier [Axis]: NuStep, LLC | Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 12,200 11,550 9,240
Investment, Identifier [Axis]: NuStep, LLC | Preferred Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value $ 6,110 $ 6,000 5,150
Investment, Identifier [Axis]: NuStep, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 486 [33] 486 [15]  
Cost $ 11,866 [3],[33] $ 11,866 [6],[15]  
Fair value $ 12,200 [7],[33] $ 11,550 [8],[15]  
Investment, Identifier [Axis]: NuStep, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.48% [30],[33],[34] 11.16% [15],[37]  
Spread (as a percent) 6.50% [28],[30],[33],[34] 6.50% [15],[37],[38]  
Principal $ 1,000 [3],[30],[33],[34] $ 3,600 [6],[15],[37]  
Cost 1,000 [3],[30],[33],[34] 3,600 [6],[15],[37]  
Fair value $ 1,000 [7],[30],[33],[34] $ 3,600 [8],[15],[37]  
Investment, Identifier [Axis]: NuStep, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 10.48% 11.16%  
Spread (as a percent) 6.50% 6.50%  
Fair value $ 1,000 $ 3,600 3,600
Investment, Identifier [Axis]: NuStep, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Fair value $ 18,440 $ 18,439 18,426
Investment, Identifier [Axis]: NuStep, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [33],[34] 12.00% [15]  
Principal $ 18,440 [3],[33],[34] $ 18,440 [6],[15]  
Cost 18,440 [3],[33],[34] 18,439 [6],[15]  
Fair value $ 18,440 [7],[33],[34] $ 18,439 [8],[15]  
Investment, Identifier [Axis]: OMi Topco, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 900 [31],[33] 900 [15],[32]  
Cost $ 1,080 [3],[31],[33] $ 1,080 [6],[15],[32]  
Fair value $ 77,900 [7],[31],[33] $ 72,720 [8],[15],[32] 36,380
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [33] 12.00% [15]  
Principal $ 29,000 [3],[33] $ 9,000 [6],[15]  
Cost 28,956 [3],[33] 8,970 [6],[15]  
Fair value 29,000 [7],[33] 9,000 [8],[15] 12,750
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value 0 9,000  
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value 0 0  
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Fair value 0 0  
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Fair value $ 0 0  
Investment, Identifier [Axis]: OMi Topco, LLC | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 29,000 $ 0  
Investment, Identifier [Axis]: Obra Capital, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 7.25% [9],[22],[28],[29],[30] 7.50% [10],[21],[37],[38],[40]  
Principal $ 0 [9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (3) [3],[9],[22],[29],[30] (4) [6],[10],[21],[37],[40]  
Fair value $ (3) [7],[9],[22],[29],[30] $ (4) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Obra Capital, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.09% [9],[22],[30] 11.97% [10],[21],[37]  
Spread (as a percent) 7.25% [9],[22],[28],[30] 7.50% [10],[21],[37],[38]  
Principal $ 26,089 [3],[9],[22],[30] $ 26,352 [6],[10],[21],[37]  
Cost 25,549 [3],[9],[22],[30] 25,653 [6],[10],[21],[37]  
Fair value $ 26,089 [7],[9],[22],[30] $ 25,884 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Obra Capital, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 11.09%    
Spread (as a percent) [9],[22],[28],[30] 7.25%    
Principal [3],[9],[22],[30] $ 3,155    
Cost [3],[9],[22],[30] 3,075    
Fair value [7],[9],[22],[30] $ 3,155    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 635 [23] 635 [20]  
Cost $ 830 [3],[23] $ 830 [6],[20]  
Fair value $ 0 [7],[23] $ 0 [8],[20] 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 912 [23] 912 [20]  
Total Rate 7.00% [23] 7.00% [20]  
PIK Rate 7.00% [23],[24] 7.00% [20],[25]  
Cost $ 1,981 [3],[23] $ 1,981 [6],[20]  
Fair value $ 0 [7],[23] $ 0 [8],[20] 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23],[26] 12.00% [20],[39]  
PIK Rate 12.00% [23],[24],[26] 12.00% [20],[25],[39]  
Principal $ 4,415 [3],[23],[26] $ 4,415 [6],[20],[39]  
Cost 4,415 [3],[23],[26] 4,415 [6],[20],[39]  
Fair value $ 645 [7],[23],[26] $ 457 [8],[20],[39]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 141 $ 99 326
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 144 $ 101 332
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 309 $ 218 716
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 645 $ 457 1,493
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23],[26] 12.00% [20],[39]  
PIK Rate 12.00% [23],[24],[26] 12.00% [20],[25],[39]  
Principal $ 2,116 [3],[23],[26] $ 2,116 [6],[20],[39]  
Cost 2,116 [3],[23],[26] 2,116 [6],[20],[39]  
Fair value $ 309 [7],[23],[26] $ 218 [8],[20],[39]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23],[26] 12.00% [20],[39]  
PIK Rate 12.00% [23],[24],[26] 12.00% [20],[25],[39]  
Principal $ 983 [3],[23],[26] $ 983 [6],[20],[39]  
Cost 983 [3],[23],[26] 983 [6],[20],[39]  
Fair value $ 144 [7],[23],[26] $ 101 [8],[20],[39]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23],[26] 12.00% [20],[39]  
PIK Rate 12.00% [23],[24],[26] 12.00% [20],[25],[39]  
Principal $ 964 [3],[23],[26] $ 964 [6],[20],[39]  
Cost 964 [3],[23],[26] 964 [6],[20],[39]  
Fair value $ 141 [7],[23],[26] $ 99 [8],[20],[39]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% [23],[26] 10.00% [20],[39]  
PIK Rate 10.00% [23],[24],[26] 10.00% [20],[25],[39]  
Principal $ 305 [3],[23],[26] $ 305 [6],[20],[39]  
Cost 305 [3],[23],[26] 305 [6],[20],[39]  
Fair value $ 0 [7],[23],[26] $ 305 [8],[20],[39] 305
Investment, Identifier [Axis]: OnAsset Intelligence, Inc. | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 4,699 [23],[43] 4,699 [20],[27]  
Cost $ 1,089 [3],[23],[43] $ 1,089 [6],[20],[27]  
Fair value $ 0 [7],[23],[43] $ 0 [8],[20],[27] 0
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.42% [9],[22],[30] 11.35% [10],[21],[37]  
Spread (as a percent) 5.75% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 1,386 [3],[9],[22],[30] $ 1,400 [6],[10],[21],[37]  
Cost 1,375 [3],[9],[22],[30] 1,386 [6],[10],[21],[37]  
Fair value $ 1,386 [7],[9],[22],[30] $ 1,386 [8],[10],[21],[37]  
Investment, Identifier [Axis]: OnPoint Industrial Services, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.42% [9],[22],[30] 11.33% [10],[21],[37]  
Spread (as a percent) 5.75% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 3,851 [3],[9],[22],[30] $ 3,880 [6],[10],[21],[37]  
Cost 3,825 [3],[9],[22],[30] 3,850 [6],[10],[21],[37]  
Fair value $ 3,851 [7],[9],[22],[30] $ 3,850 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Oneliance, LLC | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,128 [23],[31] 1,128 [20],[32]  
Cost $ 1,128 [3],[23],[31] $ 1,128 [6],[20],[32]  
Fair value $ 3,270 [7],[23],[31] $ 2,580 [8],[20],[32] 1,128
Investment, Identifier [Axis]: Oneliance, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent)   10.00%  
Fair value   $ 0 0
Investment, Identifier [Axis]: Oneliance, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent)   10.00%  
Fair value   $ 0 5,350
Investment, Identifier [Axis]: Orttech Holdings, LLC | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 10,000 [33],[45] 10,000 [15],[32],[46]  
Cost $ 10,000 [3],[33],[45] $ 10,000 [6],[15],[32],[46]  
Fair value $ 13,450 [7],[33],[45] $ 13,450 [8],[15],[32],[46] 17,050
Investment, Identifier [Axis]: Orttech Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [30],[33] 14.98%    
Spread (as a percent) 11.00% [28],[30],[33] 11.00% [15],[37],[38],[40]  
Principal $ 612 [3],[30],[33] $ 0 [6],[15],[37],[40]  
Cost 612 [3],[30],[33] 0 [6],[15],[37],[40]  
Fair value $ 612 [7],[30],[33] $ 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: Orttech Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.98% [30],[33] 15.66% [15],[37]  
Spread (as a percent) 11.00% [28],[30],[33] 11.00% [15],[37],[38]  
Principal $ 20,760 [3],[30],[33] $ 21,960 [6],[15],[37]  
Cost 20,736 [3],[30],[33] 21,890 [6],[15],[37]  
Fair value 20,760 [7],[30],[33] 21,960 [8],[15],[37] 22,040
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC | Secured Debt      
Schedule of Investments [Line Items]      
Principal 4,348 [3],[9],[22],[26] 4,398 [6],[10],[21],[39]  
Cost 4,348 [3],[9],[22],[26] 4,398 [6],[10],[21],[39]  
Fair value $ 19 [7],[9],[22],[26] $ 12 [8],[10],[21],[39]  
Investment, Identifier [Axis]: PPL RVs, Inc. | Common Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,000 [31],[33] 2,000 [15]  
Cost $ 2,150 [3],[31],[33] $ 2,150 [6],[15]  
Fair value $ 17,330 [7],[31],[33] $ 17,110 [8],[15] 16,980
Investment, Identifier [Axis]: PPL RVs, Inc. | Common Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 238,421 [31],[33],[45] 238,421 [15],[32],[46]  
Cost $ 238 [3],[31],[33],[45] $ 238 [6],[15],[32],[46]  
Fair value $ 575 [7],[31],[33],[45] $ 514 [8],[15],[32],[46] 368
Investment, Identifier [Axis]: PPL RVs, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 8.75% [28],[29],[30],[33] 8.75% [15],[37],[38],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost (3) [3],[29],[30],[33] (5) [6],[15],[37],[40]  
Fair value $ 0 [7],[29],[30],[33] $ 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: PPL RVs, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.04% [30],[33] 13.73% [15],[37]  
Spread (as a percent) 8.75% [28],[30],[33] 8.75% [15],[37],[38]  
Principal $ 15,191 [3],[30],[33] $ 16,456 [6],[15],[37]  
Cost 15,125 [3],[30],[33] 16,346 [6],[15],[37]  
Fair value $ 15,191 [7],[30],[33] $ 16,456 [8],[15],[37] 19,877
Investment, Identifier [Axis]: PTL US Bidco, Inc | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[19],[21],[37]   13.03%  
Spread (as a percent) [10],[13],[19],[21],[37],[38]   8.25%  
Principal [6],[10],[13],[19],[21],[37]   $ 6,838  
Cost [6],[10],[13],[19],[21],[37]   6,739  
Fair value [8],[10],[13],[19],[21],[37]   $ 6,769  
Investment, Identifier [Axis]: PTL US Bidco, Inc | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[19],[21],[37]   13.03%  
Spread (as a percent) [10],[13],[19],[21],[37],[38]   8.25%  
Principal [6],[10],[13],[19],[21],[37]   $ 17,811  
Cost [6],[10],[13],[19],[21],[37]   17,615  
Fair value [8],[10],[13],[19],[21],[37]   $ 17,631  
Investment, Identifier [Axis]: Peaches Holding Corporation | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,226 [22] 3,226 [21]  
Cost $ 7,221 [3],[22] $ 7,221 [6],[21]  
Fair value $ 0 [7],[22] 4,540 [8],[21]  
Investment, Identifier [Axis]: Pearl Meyer Topco LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Fair value   0 44,090
Investment, Identifier [Axis]: Pearl Meyer Topco LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value   0 3,500
Investment, Identifier [Axis]: Pearl Meyer Topco LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value   0 20,000
Investment, Identifier [Axis]: Pearl Meyer Topco LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Fair value   $ 0 27,681
Investment, Identifier [Axis]: Pinnacle TopCo, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 440 [31],[33] 440 [15],[32]  
Cost $ 12,540 [3],[31],[33] $ 12,540 [6],[15],[32]  
Fair value 20,440 [7],[31],[33] 18,360 [8],[15],[32] 12,540
Investment, Identifier [Axis]: Pinnacle TopCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost (9) [3],[29],[33] (13) [6],[15],[40]  
Fair value $ 0 [7],[29],[33] $ 0 [8],[15],[40] 444
Investment, Identifier [Axis]: Pinnacle TopCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 27,200 [3],[33] $ 28,640 [6],[15]  
Cost 27,037 [3],[33] 28,415 [6],[15]  
Fair value $ 27,200 [7],[33] $ 28,640 [8],[15] 30,339
Investment, Identifier [Axis]: Power System Solutions | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   1,234  
Cost [6],[10],[21]   $ 1,234  
Fair value [8],[10],[21]   $ 3,800  
Investment, Identifier [Axis]: Power System Solutions | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   6.50%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (63)  
Fair value [8],[10],[21],[37],[40]   $ (63)  
Investment, Identifier [Axis]: Power System Solutions | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.86%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 6,124  
Cost [6],[10],[21],[37]   5,988  
Fair value [8],[10],[21],[37]   $ 6,124  
Investment, Identifier [Axis]: Power System Solutions | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   10.90%  
Spread (as a percent) [10],[21],[37],[38]   6.50%  
Principal [6],[10],[21],[37]   $ 18,233  
Cost [6],[10],[21],[37]   17,858  
Fair value [8],[10],[21],[37]   $ 18,233  
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.35% [9],[11],[22],[30] 10.58% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[11],[22],[28],[30] 5.50% [10],[21],[37],[38]  
Principal $ 7,800 [3],[9],[11],[22],[30] $ 7,880 [6],[10],[21],[37]  
Cost 7,638 [3],[9],[11],[22],[30] 7,668 [6],[10],[21],[37]  
Fair value $ 7,800 [7],[9],[11],[22],[30] $ 7,880 [8],[10],[21],[37]  
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.17% [9],[11],[22],[30] 9.83% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[11],[22],[28],[30] 5.50% [10],[21],[37],[38]  
Principal $ 745 [3],[9],[11],[22],[30] $ 752 [6],[10],[21],[37]  
Cost 728 [3],[9],[11],[22],[30] 730 [6],[10],[21],[37]  
Fair value $ 745 [7],[9],[11],[22],[30] $ 752 [8],[10],[21],[37]  
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.17% [9],[11],[22],[30] 9.83% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[11],[22],[28],[30] 5.50% [10],[21],[37],[38]  
Principal $ 749 [3],[9],[11],[22],[30] $ 756 [6],[10],[21],[37]  
Cost 736 [3],[9],[11],[22],[30] 740 [6],[10],[21],[37]  
Fair value $ 749 [7],[9],[11],[22],[30] $ 756 [8],[10],[21],[37]  
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 8.92% [9],[11],[22],[30] 9.58% [10],[21],[37]  
Spread (as a percent) 5.25% [9],[11],[22],[28],[30] 5.25% [10],[21],[37],[38]  
Principal $ 851 [3],[9],[11],[22],[30] $ 859 [6],[10],[21],[37]  
Cost 842 [3],[9],[11],[22],[30] 848 [6],[10],[21],[37]  
Fair value $ 851 [7],[9],[11],[22],[30] $ 859 [8],[10],[21],[37]  
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[22],[30] 9.12%    
Spread (as a percent) [9],[11],[22],[28],[30] 5.25%    
Principal [3],[9],[11],[22],[30] $ 1,886    
Cost [3],[9],[11],[22],[30] 1,871    
Fair value [7],[9],[11],[22],[30] $ 1,886    
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 6      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[22],[30] 9.09%    
Spread (as a percent) [9],[11],[22],[28],[30] 5.25%    
Principal [3],[9],[11],[22],[30] $ 2,021    
Cost [3],[9],[11],[22],[30] 2,004    
Fair value [7],[9],[11],[22],[30] $ 2,021    
Investment, Identifier [Axis]: PrimeFlight Aviation Services | Secured Debt 7      
Schedule of Investments [Line Items]      
Total Rate [9],[11],[22],[30] 8.63%    
Spread (as a percent) [9],[11],[22],[28],[30] 4.75%    
Principal [3],[9],[11],[22],[30] $ 2,128    
Cost [3],[9],[11],[22],[30] 2,108    
Fair value [7],[9],[11],[22],[30] $ 2,108    
Investment, Identifier [Axis]: Principle Environmental, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,037 [33] 1,037 [15]  
Cost $ 1,200 [3],[33] $ 1,200 [6],[15]  
Fair value $ 750 [7],[33] $ 600 [8],[15] 510
Investment, Identifier [Axis]: Principle Environmental, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 21,806 [31],[33] 21,806 [15],[32]  
Cost $ 5,709 [3],[31],[33] $ 5,709 [6],[15],[32]  
Fair value $ 15,740 [7],[31],[33] $ 12,600 [8],[15],[32] 10,750
Investment, Identifier [Axis]: Principle Environmental, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 4,897 [3],[33] $ 4,897 [6],[15]  
Cost 4,880 [3],[33] 4,861 [6],[15]  
Fair value $ 4,897 [7],[33] $ 4,861 [8],[15] 5,829
Investment, Identifier [Axis]: Purge Rite, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   32,813  
Cost [6],[10],[21]   $ 33  
Fair value [8],[10],[21]   $ 2,060  
Investment, Identifier [Axis]: Purge Rite, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   32,813  
Cost [6],[10],[21]   $ 3,248  
Fair value [8],[10],[21]   $ 3,248  
Investment, Identifier [Axis]: Quality Lease Service, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,000 [33] 1,000 [15]  
Cost $ 7,546 [3],[33] $ 7,546 [6],[15]  
Fair value $ 460 [7],[33] 460 [8],[15] 460
Investment, Identifier [Axis]: Quality Lease Service, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Fair value   $ 0 0
Investment, Identifier [Axis]: RA Outdoors LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 110 [9],[23] 110 [10],[13],[20]  
Cost $ 0 [3],[9],[23] $ 0 [6],[10],[13],[20]  
Fair value $ 0 [7],[9],[23] $ 0 [8],[10],[13],[20] 0
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.89% [9],[23],[30] 11.74% [10],[13],[20],[37]  
Spread (as a percent) 6.75% [9],[23],[28],[30] 6.75% [10],[13],[20],[37],[38]  
PIK Rate 10.89% [9],[23],[24],[30] 11.74% [10],[13],[20],[25],[37]  
Principal $ 1,434 [3],[9],[23],[30] $ 1,356 [6],[10],[13],[20],[37]  
Cost 1,433 [3],[9],[23],[30] 1,352 [6],[10],[13],[20],[37]  
Fair value $ 1,182 [7],[9],[23],[30] 1,257 [8],[10],[13],[20],[37] 771
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 10.89%    
Spread (as a percent) 6.75%    
PIK Rate 10.89%    
Fair value $ 1,182 1,257  
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 10.89%    
Spread (as a percent) 6.75%    
PIK Rate 10.89%    
Fair value $ 12,355 13,155  
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.75%    
Fair value $ 0 0  
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 1.4      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.75%    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[13],[20],[37]   11.74%  
Spread (as a percent) 6.75% [9],[23],[28],[29],[30] 6.75% [10],[13],[20],[37],[38]  
PIK Rate [10],[13],[20],[25],[37]   11.74%  
Principal $ 0 [3],[9],[23],[29],[30] $ 14,194 [6],[10],[13],[20],[37]  
Cost 0 [3],[9],[23],[29],[30] 14,145 [6],[10],[13],[20],[37]  
Fair value $ 0 [7],[9],[23],[29],[30] 13,155 [8],[10],[13],[20],[37] 12,513
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[23],[30] 10.89%    
Spread (as a percent) [9],[23],[28],[30] 6.75%    
PIK Rate [9],[23],[24],[30] 10.89%    
Principal [3],[9],[23],[30] $ 14,991    
Cost [3],[9],[23],[30] 14,981    
Fair value [7],[9],[23],[30] $ 12,355    
Investment, Identifier [Axis]: RA Outdoors LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[23],[28],[29],[30] 6.75%    
Principal [3],[9],[23],[29],[30] $ 0    
Cost [3],[9],[23],[29],[30] 0    
Fair value [7],[9],[23],[29],[30] $ 0    
Investment, Identifier [Axis]: RFG AcquireCo, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [23] 11,401    
Cost [3],[23] $ 11,401    
Fair value 12,771 [7],[23] 0  
Investment, Identifier [Axis]: RFG AcquireCo, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (7)    
Fair value $ (7) [7],[23],[29] 0  
Investment, Identifier [Axis]: RFG AcquireCo, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [23] 12.50%    
Principal [3],[23] $ 8,000    
Cost [3],[23] 7,932    
Fair value $ 7,932 [7],[23] 0  
Investment, Identifier [Axis]: RFG AcquireCo, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [23] 12.50%    
Principal [3],[23] $ 34,000    
Cost [3],[23] 33,700    
Fair value $ 33,700 [7],[23] 0  
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [23] 104,904    
Cost [3],[23] $ 1,049    
Fair value 1,049 [7],[23] 0  
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[23],[29] 0    
Cost [3],[23],[29] (18)    
Fair value $ (18) [7],[23],[29] 0  
Investment, Identifier [Axis]: Revenue Recovery Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 6,700    
Cost [3],[23] 6,640    
Fair value $ 6,640 [7],[23] $ 0  
Investment, Identifier [Axis]: Richardson Sales Solutions | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 8.86% [9],[22],[30] 11.22% [10],[21],[37],[44]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 6.75% [10],[21],[37],[38],[44]  
Principal $ 1,353 [3],[9],[22],[30] $ 3,517 [6],[10],[21],[37],[44]  
Cost 1,299 [3],[9],[22],[30] 3,443 [6],[10],[21],[37],[44]  
Fair value $ 1,353 [7],[9],[22],[30] $ 3,517 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Richardson Sales Solutions | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 8.86% [9],[22],[30] 11.38% [10],[21],[37]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 6.75% [10],[21],[37],[38]  
Principal $ 33,168 [3],[9],[22],[30] $ 34,046 [6],[10],[21],[37]  
Cost 32,566 [3],[9],[22],[30] 33,201 [6],[10],[21],[37]  
Fair value $ 33,168 [7],[9],[22],[30] $ 34,046 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Richardson Sales Solutions | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 8.93% [9],[22],[30] 11.43% [10],[21],[37]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 6.75% [10],[21],[37],[38]  
Principal $ 21,545 [3],[9],[22],[30] $ 22,101 [6],[10],[21],[37]  
Cost 21,255 [3],[9],[22],[30] 21,694 [6],[10],[21],[37]  
Fair value $ 21,545 [7],[9],[22],[30] $ 22,101 [8],[10],[21],[37]  
Investment, Identifier [Axis]: River Aggregates, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,500 [33],[45] 1,500 [15],[46]  
Cost $ 369 [3],[33],[45] $ 369 [6],[15],[46]  
Fair value $ 9,700 [7],[33],[45] $ 9,530 [8],[15],[46] 3,710
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 11,070 [33] 11,070 [15]  
Cost $ 11,070 [3],[33] $ 11,070 [6],[15]  
Fair value 0 [7],[33] $ 0 [8],[15] 0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
PIK Rate [15],[25],[39],[40]   10.00%  
Principal 0 [3],[26],[29],[33] $ 0 [6],[15],[39],[40]  
Cost (62) [3],[26],[29],[33] (39) [6],[15],[39],[40]  
Fair value $ (62) [7],[26],[29],[33] $ (39) [8],[15],[39],[40] (26)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% [26],[33] 12.50% [15],[39]  
PIK Rate 10.00% [24],[26],[33] 10.00% [15],[25],[39]  
Principal $ 33,660 [3],[26],[33] $ 33,660 [6],[15],[39]  
Cost 31,771 [3],[26],[33] 32,624 [6],[15],[39]  
Fair value 14,029 [7],[26],[33] $ 14,562 [8],[15],[39] 30,798
Investment, Identifier [Axis]: Roof Opco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   8.00%  
Principal 0 [3],[9],[22],[29] $ 0 [6],[10],[21],[37],[40]  
Cost (2) [3],[9],[22],[29] (5) [6],[10],[21],[37],[40]  
Fair value $ 0 [7],[9],[22],[29] $ 0 [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Roof Opco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% [9],[22] 11.85% [10],[21],[37]  
Spread (as a percent) [10],[21],[37],[38]   7.00%  
PIK Rate [9],[22],[24] 10.00%    
Principal $ 3,376 [3],[9],[22] $ 3,376 [6],[10],[21],[37]  
Cost 3,360 [3],[9],[22] 3,335 [6],[10],[21],[37]  
Fair value $ 2,444 [7],[9],[22] $ 3,071 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Roof Opco, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.00% [9],[22] 13.85% [10],[21],[37]  
Spread (as a percent) [10],[21],[37],[38]   9.00%  
PIK Rate [9],[22],[24] 10.00%    
Principal $ 3,376 [3],[9],[22] $ 3,376 [6],[10],[21],[37]  
Cost 3,360 [3],[9],[22] 3,335 [6],[10],[21],[37]  
Fair value $ 2,375 [7],[9],[22] $ 3,052 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Royal Cup Inc. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 3,807,144    
Cost [3],[9],[22] $ 3,807    
Fair value [7],[9],[22] $ 3,807    
Investment, Identifier [Axis]: Royal Cup Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (221)    
Fair value [7],[9],[22],[29],[30] $ (221)    
Investment, Identifier [Axis]: Royal Cup Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (83)    
Fair value [7],[9],[22],[29],[30] $ (83)    
Investment, Identifier [Axis]: Royal Cup Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Spread (as a percent) [9],[22],[28],[29],[30] 5.25%    
Principal [3],[9],[22],[29],[30] $ 0    
Cost [3],[9],[22],[29],[30] (359)    
Fair value [7],[9],[22],[29],[30] $ (359)    
Investment, Identifier [Axis]: Royal Cup Inc. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 8.98%    
Spread (as a percent) [9],[22],[28],[30] 5.25%    
Principal [3],[9],[22],[30] $ 53,300    
Cost [3],[9],[22],[30] 52,527    
Fair value [7],[9],[22],[30] $ 52,527    
Investment, Identifier [Axis]: Rug Doctor, LLC. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.17% [9],[22],[30] 12.52% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
PIK Rate [10],[21],[25],[37]   2.00%  
Principal $ 3,721 [3],[9],[22],[30] $ 5,888 [6],[10],[21],[37]  
Cost 3,720 [3],[9],[22],[30] 5,879 [6],[10],[21],[37]  
Fair value $ 3,721 [7],[9],[22],[30] $ 5,888 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Rug Doctor, LLC. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.17% [9],[22],[30] 12.52% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
PIK Rate [10],[21],[25],[37]   2.00%  
Principal $ 6,831 [3],[9],[22],[30] $ 7,449 [6],[10],[21],[37]  
Cost 6,737 [3],[9],[22],[30] 7,421 [6],[10],[21],[37]  
Fair value $ 6,831 [7],[9],[22],[30] $ 7,449 [8],[10],[21],[37]  
Investment, Identifier [Axis]: SI East, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 165 [23],[31] 165 [20],[32]  
Cost $ 1,525 [3],[23],[31] $ 1,525 [6],[20],[32]  
Fair value $ 17,190 [7],[23],[31] $ 13,660 [8],[20],[32] 19,170
Investment, Identifier [Axis]: SI East, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.80% [23] 11.75% [20]  
Principal $ 2,250 [3],[23] $ 2,250 [6],[20]  
Cost 2,239 [3],[23] 2,236 [6],[20]  
Fair value $ 2,250 [7],[23] $ 2,250 [8],[20]  
Investment, Identifier [Axis]: SI East, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate   11.75%  
Fair value   $ 2,250 1,125
Investment, Identifier [Axis]: SI East, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Fair value   $ 0 54,536
Investment, Identifier [Axis]: SI East, LLC | Secured Debt 1.3      
Schedule of Investments [Line Items]      
Total Rate   12.79%  
Fair value   $ 67,661 0
Investment, Identifier [Axis]: SI East, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.85% [23],[63] 12.79% [20],[64]  
Principal $ 66,850 [3],[23],[63] $ 67,661 [6],[20],[64]  
Cost 66,769 [3],[23],[63] 67,611 [6],[20],[64]  
Fair value $ 66,850 [7],[23],[63] $ 67,661 [8],[20],[64]  
Investment, Identifier [Axis]: SPAU Holdings, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 638,710 [9],[22] 638,710 [10],[21]  
Cost $ 639 [3],[9],[22] $ 639 [6],[10],[21]  
Fair value $ 630 [7],[9],[22] $ 610 [8],[10],[21]  
Investment, Identifier [Axis]: SPAU Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 7.00% [9],[22],[28],[29],[30] 7.50% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (24) [3],[9],[22],[29],[30] (32) [6],[10],[21],[37],[40]  
Fair value $ 0 [7],[9],[22],[29],[30] $ 0 [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: SPAU Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.82% [9],[22],[30] 11.98% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 7.50% [10],[21],[37],[38]  
Principal $ 15,409 [3],[9],[22],[30] $ 15,569 [6],[10],[21],[37]  
Cost 15,291 [3],[9],[22],[30] 15,410 [6],[10],[21],[37]  
Fair value $ 15,409 [7],[9],[22],[30] $ 15,569 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Slick Innovations, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 70,000 [23],[31] 70,000 [20],[32]  
Cost $ 0 [3],[23],[31] $ 0 [6],[20],[32]  
Fair value $ 2,160 [7],[23],[31] $ 2,440 [8],[20],[32] 2,310
Investment, Identifier [Axis]: Slick Innovations, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.00% [23] 14.00% [20]  
Principal $ 24,680 [3],[23] $ 16,320 [6],[20]  
Cost 24,451 [3],[23] 16,181 [6],[20]  
Fair value 24,680 [7],[23] 16,320 [8],[20] 11,440
Investment, Identifier [Axis]: Slick Innovations, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value $ 0 16,320  
Investment, Identifier [Axis]: Slick Innovations, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.00%    
Fair value $ 24,680 $ 0  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 864 [9],[22] 864 [10],[21]  
Cost $ 864 [3],[9],[22] $ 864 [6],[10],[21]  
Fair value $ 1,013 [7],[9],[22] $ 885 [8],[10],[21]  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.25% [9],[22],[28],[29],[30] 5.25% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 0 [3],[9],[22],[29],[30] 0 [6],[10],[21],[37],[40]  
Fair value $ 0 [7],[9],[22],[29],[30] $ 0 [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.07% [9],[22],[30] 9.71% [10],[21],[37]  
Spread (as a percent) 5.25% [9],[22],[28],[30] 5.25% [10],[21],[37],[38]  
Principal $ 53,320 [3],[9],[22],[30] $ 53,320 [6],[10],[21],[37]  
Cost 53,022 [3],[9],[22],[30] 52,939 [6],[10],[21],[37]  
Fair value $ 53,320 [7],[9],[22],[30] 53,320 [8],[10],[21],[37]  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.07%    
Spread (as a percent) [9],[22],[28],[30] 5.25%    
Principal [3],[9],[22],[30] $ 10,475    
Cost [3],[9],[22],[30] 10,383    
Fair value [7],[9],[22],[30] $ 10,475    
Investment, Identifier [Axis]: Specialized Aviation Holdings, LLC | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) [23] 25,000    
Cost [3],[23] $ 15,000    
Fair value $ 15,000 [7],[23] 0  
Investment, Identifier [Axis]: Specialized Aviation Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [23] 13.00%    
Principal [3],[23] $ 28,625    
Cost [3],[23] 28,362    
Fair value $ 28,362 [7],[23] $ 0  
Investment, Identifier [Axis]: Student Resource Center, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 5,907,649 [9],[23] 5,907,649 [10],[20]  
Cost $ 0 [3],[9],[23] $ 0 [6],[10],[20]  
Fair value $ 0 [7],[9],[23] $ 0 [8],[10],[20] 0
Investment, Identifier [Axis]: Student Resource Center, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 8.50% [9],[23] 8.50% [10],[20]  
PIK Rate 8.50% [9],[23],[24] 8.50% [10],[20],[25]  
Principal $ 222 [3],[9],[23] $ 204 [6],[10],[20]  
Cost 222 [3],[9],[23] 204 [6],[10],[20]  
Fair value $ 780 [7],[9],[23] $ 204 [8],[10],[20]  
Investment, Identifier [Axis]: Student Resource Center, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 8.50% 8.50%  
PIK Rate 8.50% 8.50%  
Fair value $ 1,438 $ 1,644 3,190
Investment, Identifier [Axis]: Student Resource Center, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate 8.50% 8.50%  
PIK Rate 8.50% 8.50%  
Fair value $ 780 $ 204 0
Investment, Identifier [Axis]: Student Resource Center, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 8.50% [9],[23],[26] 8.50% [10],[20],[39]  
PIK Rate 8.50% [9],[23],[24],[26] 8.50% [10],[20],[25],[39]  
Principal $ 5,327 [3],[9],[23],[26] $ 5,327 [6],[10],[20],[39]  
Cost 4,884 [3],[9],[23],[26] 4,884 [6],[10],[20],[39]  
Fair value $ 1,438 [7],[9],[23],[26] $ 1,644 [8],[10],[20],[39]  
Investment, Identifier [Axis]: Superior Rigging & Erecting Co. | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,636 [23] 1,636 [20]  
Cost $ 4,500 [3],[23] $ 4,500 [6],[20]  
Fair value $ 17,500 [7],[23] 10,530 [8],[20] 5,940
Investment, Identifier [Axis]: Superior Rigging & Erecting Co. | Secured Debt      
Schedule of Investments [Line Items]      
Fair value   $ 0 20,427
Investment, Identifier [Axis]: TEC Services, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.50% [9],[22],[28],[29],[30] 5.75% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (76) [3],[9],[22],[29],[30] (125) [6],[10],[21],[37],[40]  
Fair value $ (76) [7],[9],[22],[29],[30] $ (125) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: TEC Services, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Spread (as a percent) 5.50% [9],[22],[28],[29],[30] 5.75% [10],[21],[37],[38],[40]  
Principal $ 0 [3],[9],[22],[29],[30] $ 0 [6],[10],[21],[37],[40]  
Cost (57) [3],[9],[22],[29],[30] (94) [6],[10],[21],[37],[40]  
Fair value $ (57) [7],[9],[22],[29],[30] $ (94) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: TEC Services, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.27% [9],[22],[30] 10.13% [10],[21],[37]  
Spread (as a percent) 5.50% [9],[22],[28],[30] 5.75% [10],[21],[37],[38]  
Principal $ 32,010 [3],[9],[22],[30] $ 42,333 [6],[10],[21],[37]  
Cost 31,633 [3],[9],[22],[30] 41,709 [6],[10],[21],[37]  
Fair value $ 31,903 [7],[9],[22],[30] $ 41,709 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Team Public Choices, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [17],[21]   9.65%  
Spread (as a percent) [17],[21],[38]   5.00%  
Principal [6],[17],[21]   $ 14,683  
Cost [6],[17],[21]   14,522  
Fair value [8],[17],[21]   $ 14,781  
Investment, Identifier [Axis]: Tectonic Financial, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 200,000 [22],[31] 200,000 [21],[32]  
Cost $ 2,000 [3],[22],[31] $ 2,000 [6],[21],[32]  
Fair value $ 5,000 [7],[22],[31] $ 4,720 [8],[21],[32]  
Investment, Identifier [Axis]: Tedder Industries, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 6,605 [33] 6,605 [15]  
Cost $ 661 [3],[33] $ 661 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 0
Investment, Identifier [Axis]: Tedder Industries, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 5,643 [33] 5,643 [15]  
Cost $ 564 [3],[33] $ 564 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 0
Investment, Identifier [Axis]: Tedder Industries, LLC | Preferred Member Units 3      
Schedule of Investments [Line Items]      
Units (in shares) 544 [33] 544 [15]  
Cost $ 9,245 [3],[33] $ 9,245 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 0
Investment, Identifier [Axis]: Tedder Industries, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [26],[33],[34] 12.00% [15],[35],[39]  
PIK Rate 12.00% [24],[26],[33],[34] 12.00% [15],[25],[35],[39]  
Principal $ 1,203 [3],[26],[33],[34] $ 1,840 [6],[15],[35],[39]  
Cost 861 [3],[26],[33],[34] 1,821 [6],[15],[35],[39]  
Fair value $ 962 [7],[26],[33],[34] $ 1,646 [8],[15],[35],[39] 1,726
Investment, Identifier [Axis]: Tedder Industries, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [26],[33],[34] 12.00% [15],[35],[39]  
PIK Rate 12.00% [24],[26],[33],[34] 12.00% [15],[25],[35],[39]  
Principal $ 15,200 [3],[26],[33],[34] $ 15,200 [6],[15],[35],[39]  
Cost 15,045 [3],[26],[33],[34] 15,045 [6],[15],[35],[39]  
Fair value $ 2,827 [7],[26],[33],[34] 3,603 [8],[15],[35],[39] 14,262
Investment, Identifier [Axis]: Televerde, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 460    
Cost [3],[31],[33] $ 1,290    
Fair value $ 4,822 [7],[31],[33] $ 4,252 4,734
Investment, Identifier [Axis]: Televerde, LLC | Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [15]   460  
Cost [6],[15]   $ 1,290  
Fair value [8],[15]   $ 4,252  
Investment, Identifier [Axis]: Televerde, LLC | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 248 [33] 248 [15]  
Cost $ 718 [3],[33] $ 718 [6],[15]  
Fair value $ 1,794 [7],[33] $ 1,794 [8],[15] 1,794
Investment, Identifier [Axis]: Tex Tech Tennis, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,000,000 [9],[22],[45] 1,000,000 [10],[21],[46]  
Cost $ 1,000 [3],[9],[22],[45] $ 1,000 [6],[10],[21],[46]  
Fair value $ 2,900 [7],[9],[22],[45] $ 2,290 [8],[10],[21],[46]  
Investment, Identifier [Axis]: The Affiliati Network, LLC | Preferred Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 312,910 [23] 287,310 [20],[32]  
Cost $ 313 [3],[23] $ 287 [6],[20],[32]  
Fair value 313 [7],[23] 287 [8],[20],[32]  
Investment, Identifier [Axis]: The Affiliati Network, LLC | Preferred Stock 1.1      
Schedule of Investments [Line Items]      
Fair value 6,400 6,400 6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC | Preferred Stock 1.2      
Schedule of Investments [Line Items]      
Fair value $ 313 $ 287 172
Investment, Identifier [Axis]: The Affiliati Network, LLC | Preferred Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 1,280,000 [23],[31] 1,280,000 [20],[32]  
Cost $ 6,400 [3],[23],[31] $ 6,400 [6],[20],[32]  
Fair value 6,400 [7],[23],[31] $ 6,400 [8],[20],[32]  
Investment, Identifier [Axis]: The Affiliati Network, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [20]   10.00%  
Principal [6],[20]   $ 400  
Cost [6],[20]   394  
Fair value [8],[20]   $ 394  
Investment, Identifier [Axis]: The Affiliati Network, LLC | Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate   10.00%  
Fair value 0 $ 394 150
Investment, Identifier [Axis]: The Affiliati Network, LLC | Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate   10.00%  
Fair value $ 0 $ 5,053 7,347
Investment, Identifier [Axis]: The Affiliati Network, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [20]   10.00%  
Principal [6],[20]   $ 5,201  
Cost [6],[20]   5,182  
Fair value [8],[20]   $ 5,053  
Investment, Identifier [Axis]: Titan Meter Midco Corp. | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,358,892 [9],[22] 1,218,750 [10],[21]  
Total Rate 8.00% [9],[22] 8.00% [10],[21]  
PIK Rate 8.00% [9],[22],[24] 8.00% [10],[21],[25]  
Cost $ 1,375 [3],[9],[22] $ 1,219 [6],[10],[21]  
Fair value $ 1,540 [7],[9],[22] $ 1,400 [8],[10],[21]  
Investment, Identifier [Axis]: Titan Meter Midco Corp. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.17%    
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38],[40]  
Principal $ 1,439 [3],[9],[22],[30] $ 0 [6],[10],[21],[37],[40]  
Cost 1,360 [3],[9],[22],[30] (105) [6],[10],[21],[37],[40]  
Fair value $ 1,439 [7],[9],[22],[30] $ (105) [8],[10],[21],[37],[40]  
Investment, Identifier [Axis]: Titan Meter Midco Corp. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.17% [9],[22],[30] 10.83% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 6.50% [10],[21],[37],[38]  
Principal $ 33,585 [3],[9],[22],[30] $ 33,927 [6],[10],[21],[37]  
Cost 32,840 [3],[9],[22],[30] 32,937 [6],[10],[21],[37]  
Fair value $ 33,585 [7],[9],[22],[30] 33,927 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Titan Meter Midco Corp. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.17%    
Spread (as a percent) [9],[22],[28],[30] 6.50%    
Principal [3],[9],[22],[30] $ 4,298    
Cost [3],[9],[22],[30] 4,214    
Fair value [7],[9],[22],[30] $ 4,298    
Investment, Identifier [Axis]: Titan Meter Midco Corp. | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 10.17%    
Spread (as a percent) [9],[22],[28],[30] 6.50%    
Principal [3],[9],[22],[30] $ 4,863    
Cost [3],[9],[22],[30] 4,755    
Fair value [7],[9],[22],[30] $ 4,863    
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33],[45] 723    
Cost [3],[33],[45] $ 696    
Fair value $ 696 [7],[33],[45] 0  
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [31],[33] 615    
Cost [3],[31],[33] $ 4,655    
Fair value 14,920 [7],[31],[33] $ 8,570 12,740
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [15],[32]   615  
Cost [6],[15],[32]   $ 4,655  
Fair value [8],[15],[32]   8,570  
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [3],[29],[33] 0 [6],[15],[40]  
Cost 0 [3],[29],[33] (1) [6],[15],[40]  
Fair value $ 0 [7],[29],[33] $ (1) [8],[15],[40] 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50% [33] 13.50% [15]  
Principal $ 9,000 [3],[33] $ 7,920 [6],[15]  
Cost 8,959 [3],[33] 7,855 [6],[15]  
Fair value $ 9,000 [7],[33] 7,855 [8],[15] 7,920
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [33] 9.00%    
Principal [3],[33] $ 2,040    
Cost [3],[33] 2,034    
Fair value $ 2,040 [7],[33] 0  
Investment, Identifier [Axis]: Trinity Medical Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [33] 22,500    
Cost [3],[33] $ 22,500    
Fair value 22,500 [7],[33] 0  
Investment, Identifier [Axis]: Trinity Medical Holdings, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [3],[29],[33] 0    
Cost [3],[29],[33] 0    
Fair value $ 0 [7],[29],[33] 0  
Investment, Identifier [Axis]: Trinity Medical Holdings, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal [3],[33] $ 58,500    
Cost [3],[33] 57,944    
Fair value $ 57,944 [7],[33] $ 0  
Investment, Identifier [Axis]: U.S. TelePacific Corp. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.32% [16],[22],[26],[30] 11.90% [17],[21],[37],[39]  
Spread (as a percent) 8.15% [16],[22],[26],[28],[30] 7.40% [17],[21],[37],[38],[39]  
PIK Rate 7.00% [16],[22],[24],[26],[30] 6.00% [17],[21],[25],[37],[39]  
Principal $ 9,811 [3],[16],[22],[26],[30] $ 9,825 [6],[17],[21],[37],[39]  
Cost 2,611 [3],[16],[22],[26],[30] 3,257 [6],[17],[21],[37],[39]  
Fair value 3,998 [7],[16],[22],[26],[30] 3,910 [8],[17],[21],[37],[39]  
Investment, Identifier [Axis]: U.S. TelePacific Corp. | Secured Debt 2      
Schedule of Investments [Line Items]      
Principal 1,003 [3],[16],[22],[26] 1,003 [6],[17],[21],[39]  
Cost 20 [3],[16],[22],[26] 20 [6],[17],[21],[39]  
Fair value $ 0 [7],[16],[22],[26] $ 0 [8],[17],[21],[39]  
Investment, Identifier [Axis]: UBM AcquireCo LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [22] 80    
Cost [3],[22] $ 8,000    
Fair value [7],[22] 8,000    
Investment, Identifier [Axis]: UBM AcquireCo LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Cost [3],[22],[29] (38)    
Fair value [7],[22],[29] $ (38)    
Investment, Identifier [Axis]: UBM AcquireCo LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [22] 10.00%    
Principal [3],[22] $ 42,800    
Cost [3],[22] 42,379    
Fair value [7],[22] $ 42,379    
Investment, Identifier [Axis]: UPS Intermediate, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,443,299 [9],[22] 1,443,299 [10],[21]  
Cost $ 1,443 [3],[9],[22] $ 1,443 [6],[10],[21]  
Fair value $ 1,480 [7],[9],[22] $ 1,443 [8],[10],[21]  
Investment, Identifier [Axis]: UPS Intermediate, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 9.97% [9],[22],[30] 10.36% [10],[21],[37]  
Spread (as a percent) 6.25% [9],[22],[28],[30] 6.00% [10],[21],[37],[38]  
Principal $ 42,903 [3],[9],[22],[30] $ 43,339 [6],[10],[21],[37]  
Cost 42,297 [3],[9],[22],[30] 42,558 [6],[10],[21],[37]  
Fair value $ 42,622 [7],[9],[22],[30] $ 42,904 [8],[10],[21],[37]  
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 2,370,059 [16],[23] 1,075,992 [17],[20]  
Cost $ 0 [3],[16],[23] $ 0 [6],[17],[20]  
Fair value $ 0 [7],[16],[23] $ 0 [8],[17],[20] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 11,450,416 [16],[23] 1,133,102 [17],[20],[32]  
Total Rate 20.00% [16],[23] 20.00% [17],[20],[32]  
PIK Rate 20.00% [16],[23],[24] 20.00% [17],[20],[25],[32]  
Cost $ 8,416 [3],[16],[23] $ 3,181 [6],[17],[20],[32]  
Fair value 9,388 [7],[16],[23] 3,181 [8],[17],[20],[32] 2,833
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 1.1      
Schedule of Investments [Line Items]      
Fair value $ 0 3,181  
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 1.2      
Schedule of Investments [Line Items]      
Total Rate 20.00%    
PIK Rate 20.00%    
Fair value $ 9,388 4,272  
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 1.3      
Schedule of Investments [Line Items]      
Total Rate 19.00%    
PIK Rate 19.00%    
Fair value $ 0 0  
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 1.4      
Schedule of Investments [Line Items]      
Total Rate 13.50%    
PIK Rate 13.50%    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 21,382,147 [16],[23] 1,731,044 [17],[20]  
Total Rate 19.00% [16],[23] 20.00% [17],[20]  
PIK Rate 19.00% [16],[23],[24] 20.00% [17],[20],[25]  
Cost $ 3,667 [3],[16],[23] $ 2,511 [6],[17],[20]  
Fair value $ 0 [7],[16],[23] $ 4,272 [8],[17],[20] 3,698
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 3      
Schedule of Investments [Line Items]      
Units (in shares) 42,338,440 [16],[23] 2,596,567 [17],[20]  
Total Rate 13.50% [16],[23] 19.00% [17],[20]  
PIK Rate 13.50% [16],[23],[24] 19.00% [17],[20],[25]  
Cost $ 7,924 [3],[16],[23] $ 3,667 [6],[17],[20]  
Fair value 0 [7],[16],[23] $ 0 [8],[17],[20] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Stock 4      
Schedule of Investments [Line Items]      
Units (in shares) [17],[20]   4,935,377  
Total Rate [17],[20]   13.50%  
PIK Rate [17],[20],[25]   13.50%  
Cost [6],[17],[20]   $ 7,924  
Fair value   $ 0 [8],[17],[20] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Secured Convertible Debt 1      
Schedule of Investments [Line Items]      
Total Rate [17],[20]   15.00%  
PIK Rate [17],[20],[25]   15.00%  
Principal [6],[17],[20]   $ 2,717  
Cost [6],[17],[20]   3,257  
Fair value 0 $ 5,642 [8],[17],[20] 3,889
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Secured Convertible Debt 2      
Schedule of Investments [Line Items]      
Total Rate [17],[20]   15.00%  
PIK Rate [17],[20],[25]   15.00%  
Principal [6],[17],[20]   $ 1,281  
Cost [6],[17],[20]   1,508  
Fair value $ 0 $ 2,663 [8],[17],[20] 1,908
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP | LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 11.11% [11],[12],[23],[49] 11.11% [13],[14],[20],[50]  
Cost $ 2,612 [3],[11],[12],[23],[49] $ 3,216 [6],[13],[14],[20],[50]  
Fair value $ 4,164 [7],[11],[12],[23],[49] $ 4,732 [8],[13],[14],[20],[50] 5,694
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP | LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 14.91% [11],[12],[23],[31],[49] 25.00% [13],[14],[20],[50]  
Cost $ 4,592 [3],[11],[12],[23],[31],[49] $ 4,767 [6],[13],[14],[20],[50]  
Fair value $ 5,165 [7],[11],[12],[23],[31],[49] 5,612 [8],[13],[14],[20],[50] 2,838
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC | Member Units      
Schedule of Investments [Line Items]      
Fair value   0 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Fair value   $ 0 150
Investment, Identifier [Axis]: Urgent DSO LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 4,000 [23],[31] 4,000 [20],[32]  
Total Rate [20],[32]   9.00%  
PIK Rate [20],[25],[32]   9.00%  
Cost $ 4,614 [3],[23],[31] $ 4,320 [6],[20],[32]  
Fair value $ 4,356 [7],[23],[31] $ 4,320 [8],[20],[32] 0
Investment, Identifier [Axis]: Urgent DSO LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.50% [23] 13.50% [20]  
Principal $ 8,800 [3],[23] $ 8,800 [6],[20]  
Cost 8,743 [3],[23] 8,727 [6],[20]  
Fair value $ 8,672 [7],[23] $ 8,727 [8],[20] 0
Investment, Identifier [Axis]: UserZoom Technologies, Inc. | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.63% [9],[22],[30] 12.75% [10],[21],[37]  
Spread (as a percent) 7.50% [9],[22],[28],[30] 7.50% [10],[21],[37],[38]  
Principal $ 4,000 [3],[9],[22],[30] $ 4,000 [6],[10],[21],[37]  
Cost 3,938 [3],[9],[22],[30] 3,918 [6],[10],[21],[37]  
Fair value $ 4,000 [7],[9],[22],[30] $ 4,000 [8],[10],[21],[37]  
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,038,462 [9],[22],[31] 1,038,462 [10],[21],[32]  
Cost $ 1,038 [3],[9],[22],[31] $ 1,038 [6],[10],[21],[32]  
Fair value $ 3,610 [7],[9],[22],[31] $ 2,640 [8],[10],[21],[32]  
Investment, Identifier [Axis]: VVS Holdco LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 12,240 [31],[33],[45] 12,240 [15],[32],[46]  
Cost $ 12,240 [3],[31],[33],[45] $ 12,240 [6],[15],[32],[46]  
Fair value $ 12,240 [7],[31],[33],[45] $ 12,240 [8],[15],[32],[46] 12,240
Investment, Identifier [Axis]: VVS Holdco LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) 6.00% [28],[29],[30],[33] 6.00% [15],[37],[40]  
Principal $ 0 [3],[29],[30],[33] $ 0 [6],[15],[37],[40]  
Cost 0 [3],[29],[30],[33] 0 [6],[15],[37],[40]  
Fair value $ 0 [7],[29],[30],[33] $ 0 [8],[15],[37],[40] 0
Investment, Identifier [Axis]: VVS Holdco LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.50% [33] 11.50% [15]  
Principal $ 24,000 [3],[33] $ 25,760 [6],[15]  
Cost 23,956 [3],[33] 25,661 [6],[15]  
Fair value $ 23,956 [7],[33] $ 25,661 [8],[15] 28,035
Investment, Identifier [Axis]: Veregy Consolidated, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [17],[21],[37],[38],[40]   5.25%  
Principal [6],[17],[21],[37],[40]   $ 0  
Cost [6],[17],[21],[37],[40]   (185)  
Fair value [8],[17],[21],[37],[40]   $ (185)  
Investment, Identifier [Axis]: Veregy Consolidated, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [17],[21],[37]   10.85%  
Spread (as a percent) [17],[21],[37],[38]   6.00%  
Principal [6],[17],[21],[37]   $ 17,659  
Cost [6],[17],[21],[37]   17,475  
Fair value [8],[17],[21],[37]   $ 17,681  
Investment, Identifier [Axis]: Victory Energy Operations, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 51,421 [33] 51,914 [15]  
Cost $ 22,471 [3],[33] $ 22,686 [6],[15]  
Fair value $ 23,380 [7],[33] 22,686 [8],[15] 0
Investment, Identifier [Axis]: Victory Energy Operations, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [33] 13.00%    
Principal $ 862 [3],[33] 0 [6],[15],[40]  
Cost 836 [3],[33] (33) [6],[15],[40]  
Fair value $ 836 [7],[33] $ (33) [8],[15],[40] 0
Investment, Identifier [Axis]: Victory Energy Operations, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% [33] 13.00% [15]  
Principal $ 48,251 [3],[33] $ 48,251 [6],[15]  
Cost 47,889 [3],[33] 47,792 [6],[15]  
Fair value $ 47,889 [7],[33] 47,792 [8],[15] 0
Investment, Identifier [Axis]: Vision Interests, Inc. | Series A Preferred Stock      
Schedule of Investments [Line Items]      
Fair value   $ 0 3,000
Investment, Identifier [Axis]: Vistar Media, Inc. | Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   70,207  
Cost [6],[10],[21]   $ 767  
Fair value [8],[10],[21]   $ 4,676  
Investment, Identifier [Axis]: Vitesse Systems | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.98% [9],[22],[36] 11.55% [10],[21]  
Spread (as a percent) 7.00% [9],[22],[28],[36] 7.00% [10],[21],[38]  
Principal $ 7,727 [3],[9],[22],[36] $ 5,795 [6],[10],[21]  
Cost 7,599 [3],[9],[22],[36] 5,673 [6],[10],[21]  
Fair value $ 7,727 [7],[9],[22],[36] $ 5,795 [8],[10],[21]  
Investment, Identifier [Axis]: Vitesse Systems | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.93% [9],[22],[30] 11.47% [10],[21],[37]  
Spread (as a percent) 7.00% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 41,650 [3],[9],[22],[30] $ 42,075 [6],[10],[21],[37]  
Cost 41,032 [3],[9],[22],[30] 41,245 [6],[10],[21],[37]  
Fair value $ 41,650 [7],[9],[22],[30] $ 42,075 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Volusion, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,802,780 [33] 1,802,780 [15]  
Cost $ 2,576 [3],[33] $ 2,576 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15] 0
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 5,097,595 [33] 5,097,595 [15]  
Cost $ 1,830 [3],[33] $ 3,978 [6],[15]  
Fair value 2,910 [7],[33] 7,003 [8],[15]  
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 0 0 0
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 1.2      
Schedule of Investments [Line Items]      
Fair value 2,910 7,003 7,250
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 1.3      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 142,512 [33] 142,512 [15]  
Cost $ 0 [3],[33] $ 0 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15]  
Investment, Identifier [Axis]: Volusion, LLC | Preferred Member Units 3      
Schedule of Investments [Line Items]      
Units (in shares) 4,876,670 [33] 4,876,670 [15]  
Cost $ 14,000 [3],[33] $ 14,000 [6],[15]  
Fair value $ 0 [7],[33] $ 0 [8],[15]  
Investment, Identifier [Axis]: Volusion, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% [33],[34] 10.00% [15]  
Principal $ 2,100 [3],[33],[34] $ 2,100 [6],[15]  
Cost 2,100 [3],[33],[34] 2,100 [6],[15]  
Fair value $ 2,100 [7],[33],[34] $ 2,100 [8],[15] 2,100
Investment, Identifier [Axis]: Wall Street Prep, Inc. | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21]   400,000  
Cost [6],[10],[21]   $ 400  
Fair value [8],[10],[21]   $ 1,210  
Investment, Identifier [Axis]: Wall Street Prep, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Spread (as a percent) [10],[21],[37],[38],[40]   7.00%  
Principal [6],[10],[21],[37],[40]   $ 0  
Cost [6],[10],[21],[37],[40]   (2)  
Fair value [8],[10],[21],[37],[40]   $ (2)  
Investment, Identifier [Axis]: Wall Street Prep, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.74%  
Spread (as a percent) [10],[21],[37],[38]   7.00%  
Principal [6],[10],[21],[37]   $ 1,759  
Cost [6],[10],[21],[37]   1,748  
Fair value [8],[10],[21],[37]   $ 1,759  
Investment, Identifier [Axis]: Wash & Wax Systems LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [9],[22] 3,219    
Cost [3],[9],[22] $ 3,410    
Fair value [7],[9],[22] $ 1,520    
Investment, Identifier [Axis]: Wash & Wax Systems LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30],[36] 9.28%    
Spread (as a percent) [9],[22],[28],[30],[36] 5.50%    
Principal [3],[9],[22],[30],[36] $ 322    
Cost [3],[9],[22],[30],[36] 322    
Fair value [7],[9],[22],[30],[36] $ 322    
Investment, Identifier [Axis]: Wash & Wax Systems LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.34%    
Spread (as a percent) [9],[22],[28],[30] 5.50%    
Principal [3],[9],[22],[30] $ 7,546    
Cost [3],[9],[22],[30] 7,546    
Fair value [7],[9],[22],[30] $ 7,546    
Investment, Identifier [Axis]: Wash & Wax Systems LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22] 12.00%    
PIK Rate [9],[22],[24] 12.00%    
Principal [3],[9],[22] $ 5,353    
Cost [3],[9],[22] 5,353    
Fair value [7],[9],[22] $ 5,353    
Investment, Identifier [Axis]: Watterson Brands, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [9],[22],[26] 12.00% [10],[21]  
PIK Rate 4.00% [9],[22],[24],[26] 4.00% [10],[21],[25]  
Principal $ 2,339 [3],[9],[22],[26] $ 2,270 [6],[10],[21]  
Cost 2,328 [3],[9],[22],[26] 2,251 [6],[10],[21]  
Fair value $ 1,595 [7],[9],[22],[26] $ 2,142 [8],[10],[21]  
Investment, Identifier [Axis]: Watterson Brands, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [9],[22],[26] 12.00% [10],[21]  
PIK Rate 4.00% [9],[22],[24],[26] 4.00% [10],[21],[25]  
Principal $ 403 [3],[9],[22],[26] $ 392 [6],[10],[21]  
Cost 394 [3],[9],[22],[26] 377 [6],[10],[21]  
Fair value $ 275 [7],[9],[22],[26] $ 369 [8],[10],[21]  
Investment, Identifier [Axis]: Watterson Brands, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.00% [9],[22],[26] 12.00% [10],[21]  
PIK Rate 4.00% [9],[22],[24],[26] 4.00% [10],[21],[25]  
Principal $ 16,589 [3],[9],[22],[26] $ 16,135 [6],[10],[21]  
Cost 16,527 [3],[9],[22],[26] 16,036 [6],[10],[21]  
Fair value $ 11,314 [7],[9],[22],[26] $ 15,227 [8],[10],[21]  
Investment, Identifier [Axis]: Watterson Brands, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 12.00% [9],[22],[26] 12.00% [10],[21]  
PIK Rate 4.00% [9],[22],[24],[26] 4.00% [10],[21],[25]  
Principal $ 13,269 [3],[9],[22],[26] $ 12,906 [6],[10],[21]  
Cost 13,219 [3],[9],[22],[26] 12,826 [6],[10],[21]  
Fair value $ 9,049 [7],[9],[22],[26] $ 12,180 [8],[10],[21]  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC | Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [10],[21],[32]   1,541,400  
Cost [6],[10],[21],[32]   $ 1,541  
Fair value [8],[10],[21],[32]   $ 4,920  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37],[59]   9.47%  
Spread (as a percent) [10],[21],[37],[38],[59]   5.00%  
Principal [6],[10],[21],[37],[59]   $ 2,381  
Cost [6],[10],[21],[37],[59]   2,348  
Fair value [8],[10],[21],[37],[59]   $ 2,381  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   9.60%  
Spread (as a percent) [10],[21],[37],[38]   5.00%  
Principal [6],[10],[21],[37]   $ 10,550  
Cost [6],[10],[21],[37]   10,428  
Fair value [8],[10],[21],[37]   $ 10,550  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   9.60%  
Spread (as a percent) [10],[21],[37],[38]   5.00%  
Principal [6],[10],[21],[37]   $ 5,250  
Cost [6],[10],[21],[37]   5,166  
Fair value [8],[10],[21],[37]   5,250  
Investment, Identifier [Axis]: Wildcats Topco LLC | Common Equity      
Schedule of Investments [Line Items]      
Units (as a percent) [23] 2242671100.00%    
Cost [3],[23] $ 22,427    
Fair value $ 22,760 [7],[23] $ 0  
Investment, Identifier [Axis]: Winter Services LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.49% [9],[22],[30],[36] 12.81% [10],[21],[37],[44]  
Spread (as a percent) 7.50% [9],[22],[28],[30],[36] 8.00% [10],[21],[37],[38],[44]  
Principal $ 4,000 [3],[9],[22],[30],[36] $ 2,200 [6],[10],[21],[37],[44]  
Cost 3,980 [3],[9],[22],[30],[36] 2,161 [6],[10],[21],[37],[44]  
Fair value $ 4,000 [7],[9],[22],[30],[36] $ 2,138 [8],[10],[21],[37],[44]  
Investment, Identifier [Axis]: Winter Services LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.75% [9],[22],[30] 12.85% [10],[21],[37]  
Spread (as a percent) 7.50% [9],[22],[28],[30] 8.00% [10],[21],[37],[38]  
Principal $ 1,874 [3],[9],[22],[30] $ 1,874 [6],[10],[21],[37]  
Cost 1,865 [3],[9],[22],[30] 1,856 [6],[10],[21],[37]  
Fair value $ 1,874 [7],[9],[22],[30] $ 1,821 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Winter Services LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.75% [9],[22],[30] 11.85% [10],[21],[37]  
Spread (as a percent) 6.50% [9],[22],[28],[30] 7.00% [10],[21],[37],[38]  
Principal $ 7,240 [3],[9],[22],[30] $ 7,240 [6],[10],[21],[37]  
Cost 7,185 [3],[9],[22],[30] 7,131 [6],[10],[21],[37]  
Fair value $ 7,240 [7],[9],[22],[30] $ 7,035 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Winter Services LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 12.75% [9],[22],[30] 13.85% [10],[21],[37]  
Spread (as a percent) 8.50% [9],[22],[28],[30] 9.00% [10],[21],[37],[38]  
Principal $ 7,240 [3],[9],[22],[30] $ 7,240 [6],[10],[21],[37]  
Cost 7,185 [3],[9],[22],[30] 7,131 [6],[10],[21],[37]  
Fair value $ 7,240 [7],[9],[22],[30] 7,035 [8],[10],[21],[37]  
Investment, Identifier [Axis]: World Micro Holdings, LLC |      
Schedule of Investments [Line Items]      
Cost [6]   14,547  
Fair value [8]   $ 14,547  
Investment, Identifier [Axis]: World Micro Holdings, LLC | Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,845 [23],[31] 3,845 [20],[32]  
Cost $ 3,845 [3],[23],[31] $ 3,845 [6],[20],[32]  
Fair value $ 3,845 [7],[23],[31] $ 3,845 [8],[20],[32] 3,845
Investment, Identifier [Axis]: World Micro Holdings, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [23] 13.00% [20]  
Principal $ 9,886 [3],[23] $ 10,765 [6],[20]  
Cost 9,848 [3],[23] 10,702 [6],[20]  
Fair value $ 9,848 [7],[23] $ 10,702 [8],[20] 12,028
Investment, Identifier [Axis]: Xenon Arc, Inc. | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 9.54% [9],[22],[30] 9.70% [10],[21],[37]  
Spread (as a percent) 5.75% [9],[22],[28],[30] 5.25% [10],[21],[37],[38]  
Principal $ 23,571 [3],[9],[22],[30] $ 23,814 [6],[10],[21],[37]  
Cost 23,374 [3],[9],[22],[30] 23,549 [6],[10],[21],[37]  
Fair value $ 23,571 [7],[9],[22],[30] $ 23,814 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Xenon Arc, Inc. | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.72% [9],[22],[30] 9.98% [10],[21],[37]  
Spread (as a percent) 5.75% [9],[22],[28],[30] 5.25% [10],[21],[37],[38]  
Principal $ 37,056 [3],[9],[22],[30] $ 37,442 [6],[10],[21],[37]  
Cost 36,774 [3],[9],[22],[30] 37,063 [6],[10],[21],[37]  
Fair value $ 37,056 [7],[9],[22],[30] $ 37,442 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Xenon Arc, Inc. | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [9],[22],[30] 9.52%    
Spread (as a percent) [9],[22],[28],[30] 5.75%    
Principal [3],[9],[22],[30] $ 10,552    
Cost [3],[9],[22],[30] 10,386    
Fair value [7],[9],[22],[30] $ 10,552    
Investment, Identifier [Axis]: YS Garments, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.48% [16],[22],[30],[58] 12.25% [17],[21],[37],[59]  
Spread (as a percent) 7.50% [16],[22],[28],[30],[58] 7.50% [17],[21],[37],[38],[59]  
Principal $ 10,592 [3],[16],[22],[30],[58] $ 10,892 [6],[17],[21],[37],[59]  
Cost 10,507 [3],[16],[22],[30],[58] 10,739 [6],[17],[21],[37],[59]  
Fair value $ 8,893 [7],[16],[22],[30],[58] $ 9,949 [8],[17],[21],[37],[59]  
Investment, Identifier [Axis]: ZRG Partners, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.75% [9],[22],[30] 12.50% [10],[21],[37]  
Spread (as a percent) 5.00% [9],[22],[28],[30] 5.00% [10],[21],[37],[38]  
Principal $ 6,601 [3],[9],[22],[30] $ 695 [6],[10],[21],[37]  
Cost 6,457 [3],[9],[22],[30] 509 [6],[10],[21],[37]  
Fair value $ 6,601 [7],[9],[22],[30] $ 695 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ZRG Partners, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.69% [9],[22],[30],[58] 10.74% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30],[58] 6.00% [10],[21],[37],[38]  
Principal $ 11,781 [3],[9],[22],[30],[58] $ 4,158 [6],[10],[21],[37]  
Cost 11,558 [3],[9],[22],[30],[58] 3,956 [6],[10],[21],[37]  
Fair value $ 11,781 [7],[9],[22],[30],[58] $ 4,158 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ZRG Partners, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.60% [9],[22],[30] 10.28% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30] 6.00% [10],[21],[37],[38]  
Principal $ 6,502 [3],[9],[22],[30] $ 6,568 [6],[10],[21],[37]  
Cost 6,409 [3],[9],[22],[30] 6,447 [6],[10],[21],[37]  
Fair value $ 6,502 [7],[9],[22],[30] $ 6,568 [8],[10],[21],[37]  
Investment, Identifier [Axis]: ZRG Partners, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 9.73% [9],[22],[30] 10.66% [10],[21],[37]  
Spread (as a percent) 6.00% [9],[22],[28],[30] 6.00% [10],[21],[37],[38]  
Principal $ 46,518 [3],[9],[22],[30] $ 47,050 [6],[10],[21],[37]  
Cost 45,853 [3],[9],[22],[30] 46,185 [6],[10],[21],[37]  
Fair value $ 46,518 [7],[9],[22],[30] 47,050 [8],[10],[21],[37]  
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC      
Schedule of Investments [Line Items]      
Cost [6]   5,504  
Fair value [8]   $ 2,070  
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 16,878 [33] 17,086 [15]  
Cost $ 3,154 [3],[33] $ 3,154 [6],[15]  
Fair value $ 50 [7],[33] $ 320 [8],[15] 0
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [15]   12.00%  
Principal [6],[15]   $ 1,750  
Cost [6],[15]   1,750  
Fair value [8],[15]   1,750  
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [33] 12.00%    
Principal [3],[33] $ 150    
Cost [3],[33] 150    
Fair value $ 150 [7],[33] $ 0 450
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [33] 12.00%  
Principal [3],[33] $ 1,750    
Cost [3],[33] 1,750    
Fair value 1,687 [7],[33] $ 1,750 0
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Secured Debt 3      
Schedule of Investments [Line Items]      
Fair value   0 945
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Secured Debt 4      
Schedule of Investments [Line Items]      
Fair value   $ 0 2,080
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC | Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [15],[27]   587  
Cost [6],[15],[27]   $ 600  
Fair value $ 0 $ 0 [8],[15],[27] $ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC | Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.91%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
PIK Rate [10],[21],[25],[37]   11.91%  
Principal [6],[10],[21],[37]   $ 18,023  
Cost [6],[10],[21],[37]   18,023  
Fair value [8],[10],[21],[37]   $ 14,852  
Investment, Identifier [Axis]: Zips Car Wash, LLC | Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [10],[21],[37]   11.91%  
Spread (as a percent) [10],[21],[37],[38]   7.25%  
PIK Rate [10],[21],[25],[37]   11.91%  
Principal [6],[10],[21],[37]   $ 4,518  
Cost [6],[10],[21],[37]   4,518  
Fair value [8],[10],[21],[37]   $ 3,723  
[1] All portfolio company headquarters are based in the U.S., unless otherwise noted.
[2] 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).
[3] Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.
[4] All portfolio company headquarters are based in the U.S., unless otherwise noted.
[5] 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.
[6] Principal is net of repayments. Cost is net of repayments and accumulated unearned income. Negative cost is the result of the capitalized discount being greater than the principal amount outstanding on the loan.
[7] 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.
[8] 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.
[9] 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.
[10] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments.
[11] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act (as defined below). Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.
[12] Other Portfolio (as defined below) investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments.
[13] 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.
[14] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments.
[15] “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.
[16] 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.
[17] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments.
[18] Portfolio company headquarters are located outside of the U.S.
[19] Portfolio company headquarters are located outside of the U.S.
[20] “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.
[21] “Non-Control/Non-Affiliate” investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[22] “Non-Control/Non-Affiliate” investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[23] “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.
[24] 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 December 31, 2025.
[25] 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.
[26] Non-accrual and non-income producing debt investment.
[27] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[28] 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 December 31, 2025, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.26%.
[29] The position is unfunded and no interest income is being earned as of December 31, 2025. The position may earn a nominal unused facility fee on committed amounts.
[30] 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 1.31%.
[31] Income producing through dividends or distributions.
[32] Income producing through dividends or distributions.
[33] “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.
[34] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[35] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[36]
(32)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, 2025.
[37] 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%.
[38] 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%.
[39] Non-accrual and non-income producing debt investment.
[40] 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.
[41] Index based floating interest rate is subject to contractual maximum base rate of 3.00%.
[42] Index based floating interest rate is subject to contractual maximum base rate of 3.00%.
[43] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[44] 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.
[45] Shares/Units represent ownership in a related real estate or holding entity.
[46] Shares/Units represent ownership in a related real estate or holding entity.
[47] 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.
[48] 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.
[49] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[50] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[51] Effective yield as of December 31, 2025 was approximately 3.70% on the Dreyfus Government Cash Management.
[52] Effective yield as of December 31, 2024 was approximately 4.43% on the Dreyfus Government Cash Management.
[53] Effective yield as of December 31, 2025 was approximately 3.43% on the Fidelity Government Fund.
[54] Effective yield as of December 31, 2024 was approximately 4.10% on the Fidelity Treasury.
[55] Effective yield as of December 31, 2025 was approximately 3.43% on the Fidelity Treasury.
[56] Index based floating interest rate is subject to contractual maximum base rate of 4.00%.
[57] Index based floating interest rate is subject to contractual maximum base rate of 1.50%.
[58] 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, 2025.
[59] 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.
[60] Investment is accruing income at the fixed cash rate of 2.50% as of December 31, 2025.
[61] 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.
[62] 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.
[63] 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 11.80% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[64] 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.