Annual report pursuant to Section 13 and 15(d)

Consolidated Schedule of Investments

v3.24.0.1
Consolidated Schedule of Investments - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]      
Cost $ 3,725,960 [1] $ 3,773,752 [2]  
Fair value $ 4,286,271 [3] $ 4,102,177 [4]  
Investment owned, percent of net assets (as a percent) 173.00% 194.50%  
Money Market Funds      
Schedule of Investments [Line Items]      
Cost [1],[5] $ 15,224    
Fair value [3],[5] 15,224    
Analytical Systems Keco Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 10,246 $ 10,485  
Fair value 9,163 8,046  
ASC Interests, LLC      
Schedule of Investments [Line Items]      
Cost 3,727 3,549  
Fair value 2,363 2,849  
ATS Workholding, LLC      
Schedule of Investments [Line Items]      
Cost 8,647 [6] 8,484 [7]  
Fair value 801 [6] 1,639 [7]  
Barfly Ventures, LLC      
Schedule of Investments [Line Items]      
Cost 2,295 [6] 2,295 [7]  
Fair value 4,851 [6] 4,031 [7]  
Batjer TopCo, LLC      
Schedule of Investments [Line Items]      
Cost 14,867 15,020  
Fair value 16,995 15,020  
Bolder Panther Group, LLC      
Schedule of Investments [Line Items]      
Cost 110,078 112,576  
Fair value 127,576 130,614  
Brewer Crane Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 9,778 10,244  
Fair value 11,118 13,044  
Bridge Capital Solutions Corporation      
Schedule of Investments [Line Items]      
Cost 12,945 12,945  
Fair value 15,103 15,153  
California Splendor Holdings LLC      
Schedule of Investments [Line Items]      
Cost 43,341 [8] 42,720  
Fair value 47,951 [8] 57,489  
Centre Technologies Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 23,634 21,076  
Fair value 28,614 23,654  
Chamberlin Holding LLC      
Schedule of Investments [Line Items]      
Cost 28,635 30,148  
Fair value 47,800 42,575  
Charps, LLC      
Schedule of Investments [Line Items]      
Cost 6,641 6,606  
Fair value 21,384 19,034  
Clad-Rex Steel, LLC      
Schedule of Investments [Line Items]      
Cost 17,353 18,969  
Fair value 15,755 20,309  
Cody Pools, Inc.      
Schedule of Investments [Line Items]      
Cost 50,348 50,281  
Fair value 114,543 100,443  
Colonial Electric Company LLC      
Schedule of Investments [Line Items]      
Cost 30,586 30,831  
Fair value 31,707 32,311  
CompareNetworks Topco, LLC      
Schedule of Investments [Line Items]      
Cost 5,429 7,207  
Fair value 17,904 25,071  
Compass Systems & Sales, LLC      
Schedule of Investments [Line Items]      
Cost 24,488    
Fair value 24,488    
Cybermedia Technologies, LLC      
Schedule of Investments [Line Items]      
Cost 43,389    
Fair value 43,389    
Datacom, LLC      
Schedule of Investments [Line Items]      
Cost 11,130 11,023  
Fair value 8,104 10,682  
Digital Products Holdings LLC      
Schedule of Investments [Line Items]      
Cost 24,259 25,024  
Fair value 24,525 25,358  
Direct Marketing Solutions, Inc.      
Schedule of Investments [Line Items]      
Cost 35,031 35,434  
Fair value 47,516 49,487  
Elgin AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost 32,161 34,040  
Fair value 32,637 34,040  
Gamber-Johnson Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 71,505 81,377  
Fair value 150,788 114,968  
Garreco, LLC      
Schedule of Investments [Line Items]      
Cost 4,288 5,026  
Fair value 4,668 5,626  
GRT Rubber Technologies LLC      
Schedule of Investments [Line Items]      
Cost 55,819 54,048  
Fair value 87,333 85,603  
Gulf Publishing Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 11,681 11,681  
Fair value 4,744 6,064  
Harris Preston Fund Investments      
Schedule of Investments [Line Items]      
Cost 3,593 [9],[10] 4,143 [11],[12]  
Fair value 6,365 [9],[10] 7,800 [11],[12]  
IG Investor, LLC      
Schedule of Investments [Line Items]      
Cost 51,299    
Fair value 51,299    
Jensen Jewelers of Idaho, LLC      
Schedule of Investments [Line Items]      
Cost 2,809 3,255  
Fair value 14,418 17,420  
JorVet Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 36,224 36,173  
Fair value 36,224 36,173  
KBK Industries, LLC      
Schedule of Investments [Line Items]      
Cost 5,445    
Fair value 27,470    
Kickhaefer Manufacturing Company, LLC      
Schedule of Investments [Line Items]      
Cost 36,811 37,448  
Fair value 35,999 34,286  
Market Force Information, LLC      
Schedule of Investments [Line Items]      
Cost   48,847  
Fair value   7,700  
Metalforming Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 31,195 31,123  
Fair value 31,158 31,123  
MH Corbin Holding LLC      
Schedule of Investments [Line Items]      
Cost 15,800 16,556  
Fair value 5,352 4,548  
MS Private Loan Fund I, LP      
Schedule of Investments [Line Items]      
Cost 14,250 [9],[10] 14,250 [11],[12]  
Fair value 14,527 [9],[10] 14,833 [11],[12]  
MS Private Loan Fund II, LP      
Schedule of Investments [Line Items]      
Cost [9],[10] 24,928    
Fair value [9],[10] 24,928    
Mystic Logistics Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 8,466 8,466  
Fair value 32,136 28,576  
Nebraska Vet AcquireCo, LLC      
Schedule of Investments [Line Items]      
Cost 43,116 37,393  
Fair value 51,314 38,294  
NexRev LLC      
Schedule of Investments [Line Items]      
Cost 17,964 19,548  
Fair value 16,101 9,587  
NRP Jones, LLC      
Schedule of Investments [Line Items]      
Cost 5,797 5,797  
Fair value 3,599 6,870  
NuStep, LLC      
Schedule of Investments [Line Items]      
Cost 34,288 35,075  
Fair value 36,416 36,003  
OMi Topco, LLC      
Schedule of Investments [Line Items]      
Cost 13,762 16,714  
Fair value 49,130 38,560  
Orttech Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 31,925 33,429  
Fair value 39,090 35,179  
Pearl Meyer Topco LLC      
Schedule of Investments [Line Items]      
Cost 64,054 41,537  
Fair value 95,271 71,941  
Pinnacle TopCo, LLC      
Schedule of Investments [Line Items]      
Cost 43,323    
Fair value 43,323    
PPL RVs, Inc.      
Schedule of Investments [Line Items]      
Cost 22,078 23,787  
Fair value 37,225 40,843  
Principle Environmental, LLC      
Schedule of Investments [Line Items]      
Cost 12,738 12,715  
Fair value 17,089 18,816  
Robbins Bros. Jewelry, Inc.      
Schedule of Investments [Line Items]      
Cost 44,953 46,439  
Fair value 30,772 50,249  
Tedder Industries, LLC      
Schedule of Investments [Line Items]      
Cost 27,510 26,277  
Fair value 15,988 24,641  
Televerde, LLC      
Schedule of Investments [Line Items]      
Cost 2,008 2,008  
Fair value 6,528 7,202  
Trantech Radiator Topco, LLC      
Schedule of Investments [Line Items]      
Cost 12,565 12,544  
Fair value 20,660 15,720  
Volusion, LLC      
Schedule of Investments [Line Items]      
Cost 27,322 33,719  
Fair value 9,350 14,914  
VVS Holdco LLC      
Schedule of Investments [Line Items]      
Cost 40,275 41,977  
Fair value 40,275 42,080  
Ziegler’s NYPD, LLC      
Schedule of Investments [Line Items]      
Cost 7,634 7,634  
Fair value 3,475 4,311  
AAC Holdings, Inc.      
Schedule of Investments [Line Items]      
Cost 17,537 [13] 14,738 [14]  
Fair value 14,313 [13] 11,550 [14]  
ATX Networks Corp.      
Schedule of Investments [Line Items]      
Cost [14]   8,499  
Fair value [14]   12,211  
BBB Tank Services, LLC      
Schedule of Investments [Line Items]      
Cost   5,762  
Fair value   2,886  
Boccella Precast Products LLC      
Schedule of Investments [Line Items]      
Cost 2,576 2,576  
Fair value 2,310 3,290  
Buca C, LLC      
Schedule of Investments [Line Items]      
Cost 21,750 22,125  
Fair value 12,144 12,337  
Career Team Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 25,287 24,581  
Fair value 25,287 24,581  
Classic H&G Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 29,544 29,502  
Fair value 39,834 48,471  
DMA Industries, LLC      
Schedule of Investments [Line Items]      
Cost 24,629 26,979  
Fair value 26,460 28,460  
Dos Rios Partners      
Schedule of Investments [Line Items]      
Cost 8,318 [9],[10] 8,510 [11],[12]  
Fair value 11,074 [9],[10] 12,025 [11],[12]  
Flame King Holdings, LLC      
Schedule of Investments [Line Items]      
Cost   38,975  
Fair value   46,380  
Freeport Financial Funds      
Schedule of Investments [Line Items]      
Cost 7,019 [9],[10] 9,810 [11],[12]  
Fair value 6,716 [9],[10] 9,331 [11],[12]  
GFG Group, LLC      
Schedule of Investments [Line Items]      
Cost 14,202 16,169  
Fair value 20,805 18,485  
Harris Preston Fund Investments      
Schedule of Investments [Line Items]      
Cost 8,219 [9],[10] 6,290 [11],[12]  
Fair value 10,863 [9],[10] 8,063 [11],[12]  
Hawk Ridge Systems, LLC      
Schedule of Investments [Line Items]      
Cost 50,116 43,868  
Fair value 65,610 59,365  
Houston Plating and Coatings, LLC      
Schedule of Investments [Line Items]      
Cost 5,352 5,352  
Fair value 6,220 5,400  
Infinity X1 Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 21,403    
Fair value 21,403    
Integral Energy Services      
Schedule of Investments [Line Items]      
Cost [6] 15,906    
Fair value [6] 14,351    
Iron-Main Investments, LLC      
Schedule of Investments [Line Items]      
Cost 48,885 37,931  
Fair value 48,809 37,931  
ITA Holdings Group, LLC      
Schedule of Investments [Line Items]      
Cost 10,464    
Fair value 10,464    
Johnson Downie Opco, LLC      
Schedule of Investments [Line Items]      
Cost 27,683 13,056  
Fair value 33,827 15,539  
OnAsset Intelligence, Inc.      
Schedule of Investments [Line Items]      
Cost 12,683 12,683  
Fair value 3,172 5,309  
Oneliance, LLC      
Schedule of Investments [Line Items]      
Cost 6,539 6,615  
Fair value $ 6,478 6,615  
Rocaceia, LLC (Quality Lease and Rental Holdings, LLC)      
Schedule of Investments [Line Items]      
Cost   32,365  
Fair value   0  
SI East, LLC      
Schedule of Investments [Line Items]      
Total Rate 11.25%    
Cost $ 56,928 90,926  
Fair value 74,831 103,436  
Slick Innovations, LLC      
Schedule of Investments [Line Items]      
Cost 11,801 14,154  
Fair value 13,750 15,370  
Sonic Systems International, LLC      
Schedule of Investments [Line Items]      
Cost [7]   16,883  
Fair value [7]   17,049  
Student Resource Center, LLC      
Schedule of Investments [Line Items]      
Cost 4,884 [6] 4,556 [7]  
Fair value 3,190 [6] 4,556 [7]  
Superior Rigging & Erecting Co.      
Schedule of Investments [Line Items]      
Cost 24,927 25,878  
Fair value 26,367 25,878  
The Affiliati Network, LLC      
Schedule of Investments [Line Items]      
Cost 14,197 15,948  
Fair value 14,069 15,948  
UniTek Global Services, Inc.      
Schedule of Investments [Line Items]      
Cost 18,942 [13] 20,535 [14]  
Fair value 12,328 [13] 11,510 [14]  
Universal Wellhead Services Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 5,032 [6] 5,032 [7]  
Fair value 150 [6] 220 [7]  
World Micro Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 15,873 17,985  
Fair value 15,873 17,985  
AB Centers Acquisition Corporation      
Schedule of Investments [Line Items]      
Cost 22,440 [6] 17,216 [7]  
Fair value 23,110 [6] 17,754 [7]  
Acousti Engineering Company of Florida      
Schedule of Investments [Line Items]      
Cost [7]   12,294  
Fair value [7]   12,376  
Acumera, Inc.      
Schedule of Investments [Line Items]      
Cost 24,524 [6] 18,561 [7]  
Fair value 24,904 [6] 18,986 [7]  
Adams Publishing Group, LLC      
Schedule of Investments [Line Items]      
Cost 29,009 [6] 28,762 [7]  
Fair value 28,468 [6] 28,815 [7]  
AMEREQUIP LLC.      
Schedule of Investments [Line Items]      
Cost 29,754 [6] 38,461 [7]  
Fair value 30,434 [6] 39,105 [7]  
American Health Staffing Group, Inc.      
Schedule of Investments [Line Items]      
Cost 6,504 [6] 6,555 [7]  
Fair value 6,542 [6] 6,607 [7]  
American Nuts, LLC      
Schedule of Investments [Line Items]      
Cost 31,640 [6] 30,816 [7]  
Fair value 23,268 [6] 29,260 [7]  
American Teleconferencing Services, Ltd.      
Schedule of Investments [Line Items]      
Cost 16,686 [13] 16,686 [14]  
Fair value 781 [13] 976 [14]  
ArborWorks, LLC      
Schedule of Investments [Line Items]      
Cost 23,350 [6] 34,064 [7]  
Fair value 23,116 [6] 29,010 [7]  
Archer Systems, LLC      
Schedule of Investments [Line Items]      
Cost [7]   67,583  
Fair value [7]   67,764  
ATS Operating, LLC      
Schedule of Investments [Line Items]      
Cost 14,400 [6] 14,040 [7]  
Fair value 14,350 [6] 13,835 [7]  
AVEX Aviation Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 24,661 [6] 28,230 [7]  
Fair value 24,934 [6] 28,276 [7]  
Berry Aviation, Inc.      
Schedule of Investments [Line Items]      
Cost 0 [6] 1,356 [7]  
Fair value 2,760 [6] 5,026 [7]  
Bettercloud, Inc.      
Schedule of Investments [Line Items]      
Cost 28,944 [6] 26,944 [7]  
Fair value 27,488 [6] 27,429 [7]  
Bluestem Brands, Inc.      
Schedule of Investments [Line Items]      
Cost 5,998 [13] 3,317 [14]  
Fair value 5,883 [13] 9,094 [14]  
Bond Brand Loyalty ULC      
Schedule of Investments [Line Items]      
Cost [6],[9],[15] 13,134    
Fair value [6],[9],[15] 13,285    
Brainworks Software, LLC      
Schedule of Investments [Line Items]      
Cost 7,817 [6] 7,817 [7]  
Fair value 1,836 [6] 3,677 [7]  
Brightwood Capital Fund Investments      
Schedule of Investments [Line Items]      
Cost 12,877 [9],[10] 13,412 [11],[12]  
Fair value 10,886 [9],[10] 11,497 [11],[12]  
Burning Glass Intermediate Holding Company, Inc.      
Schedule of Investments [Line Items]      
Cost 19,900 [6] 19,628 [7]  
Fair value 20,146 [6] 19,933 [7]  
CAI Software LLC      
Schedule of Investments [Line Items]      
Cost 1,789 1,789  
Fair value 1,789 1,789  
CaseWorthy, Inc.      
Schedule of Investments [Line Items]      
Cost 14,171 [6] 14,228 [7]  
Fair value 14,273 [6] 14,282 [7]  
Channel Partners Intermediateco, LLC      
Schedule of Investments [Line Items]      
Cost 44,769 [6] 40,163 [7]  
Fair value 43,690 [6] 40,325 [7]  
Computer Data Source, LLC      
Schedule of Investments [Line Items]      
Cost 23,067 [6] 23,243 [7]  
Fair value 22,605 [6] 21,799 [7]  
CQ Fluency, LLC      
Schedule of Investments [Line Items]      
Cost [6] 10,788    
Fair value [6] 10,788    
Dalton US Inc.      
Schedule of Investments [Line Items]      
Cost [7]   15,123  
Fair value [7]   15,390  
DTE Enterprises, LLC      
Schedule of Investments [Line Items]      
Cost 2,060 [6] 8,001 [7]  
Fair value 1,544 [6] 7,474 [7]  
Dynamic Communities, LLC      
Schedule of Investments [Line Items]      
Cost 3,920 [6] 3,487 [7]  
Fair value 3,831 [6] 3,487 [7]  
Eastern Wholesale Fence LLC      
Schedule of Investments [Line Items]      
Cost 27,882 [6],[16] 31,406 [7]  
Fair value 26,994 [6],[16] 31,159 [7]  
EnCap Energy Fund Investments      
Schedule of Investments [Line Items]      
Cost 25,431 [9],[10] 28,866 [11],[12]  
Fair value 15,864 [9],[10] 21,905 [11],[12]  
Engineering Research & Consulting, LLC      
Schedule of Investments [Line Items]      
Cost 15,864 [6] 16,132 [7]  
Fair value 16,134 [6] 16,469 [7]  
Escalent, Inc.      
Schedule of Investments [Line Items]      
Cost [6] 26,248    
Fair value [6] 27,008    
Event Holdco, LLC      
Schedule of Investments [Line Items]      
Cost 47,575 [6] 47,618 [7]  
Fair value 46,999 [6] 45,590 [7]  
Flip Electronics LLC      
Schedule of Investments [Line Items]      
Cost [7]   11,588  
Fair value [7]   11,831  
Fuse, LLC      
Schedule of Investments [Line Items]      
Cost 2,066 [13] 2,066 [14]  
Fair value 1,320 [13] 1,512 [14]  
Garyline, LLC      
Schedule of Investments [Line Items]      
Cost [6] 31,979    
Fair value [6] 31,979    
GS HVAM Intermediate, LLC      
Schedule of Investments [Line Items]      
Cost 13,314 [6] 12,864 [7]  
Fair value 13,339 [6] 12,876 [7]  
GULF PACIFIC ACQUISITION, LLC      
Schedule of Investments [Line Items]      
Cost 4,282 [6] 3,809 [7]  
Fair value 4,370 [6] 3,898 [7]  
HDC/HW Intermediate Holdings      
Schedule of Investments [Line Items]      
Cost 4,121 [6] 3,581 [7]  
Fair value 3,742 [6] 3,497 [7]  
HEADLANDS OP-CO LLC      
Schedule of Investments [Line Items]      
Cost 22,958 [6] 16,359 [7]  
Fair value 23,307 [6] 16,667 [7]  
IG Parent Corporation      
Schedule of Investments [Line Items]      
Cost 14,173 [13] 14,974 [14]  
Fair value 14,352 [13] 15,197 [14]  
Imaging Business Machines, L.L.C.      
Schedule of Investments [Line Items]      
Cost [6] 22,883    
Fair value [6] 23,318    
Independent Pet Partners Intermediate Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [7]   30,253  
Fair value [7]   15,429  
Industrial Services Acquisition, LLC      
Schedule of Investments [Line Items]      
Cost 21,349 [6] 20,507 [7]  
Fair value 21,422 [6] 20,540 [7]  
Infolinks Media Buyco, LLC      
Schedule of Investments [Line Items]      
Cost 9,143 [6] 8,442 [7]  
Fair value 9,256 [6] 8,574 [7]  
Insight Borrower Corporation      
Schedule of Investments [Line Items]      
Cost [6] 14,538    
Fair value [6] $ 14,787    
Inspire Aesthetics Management, LLC      
Schedule of Investments [Line Items]      
Reference Rate and Spread 2.00%    
Cost [6] $ 11,212    
Fair value [6] 11,080    
Interface Security Systems, L.L.C      
Schedule of Investments [Line Items]      
Cost 9,072 [6] 8,919 [7]  
Fair value 2,212 [6] 2,764 [7]  
Invincible Boat Company, LLC.      
Schedule of Investments [Line Items]      
Cost 17,263 [6] 17,402 [7]  
Fair value 17,024 [6] 17,511 [7]  
Isagenix International, LLC      
Schedule of Investments [Line Items]      
Cost [13] 2,374    
Fair value [13] 2,301    
Jackmont Hospitality, Inc.      
Schedule of Investments [Line Items]      
Cost 2,907 [6] 2,685 [7]  
Fair value 3,899 [6] 3,202 [7]  
Joerns Healthcare, LLC      
Schedule of Investments [Line Items]      
Cost 10,857 [13] 10,723 [14]  
Fair value 2,354 [13] 2,801 [14]  
JTI Electrical & Mechanical, LLC      
Schedule of Investments [Line Items]      
Cost 40,282 [6] 37,907 [7]  
Fair value 40,847 [6] 39,652 [7]  
KMS, LLC      
Schedule of Investments [Line Items]      
Cost 8,367 [6] 8,410 [7]  
Fair value 7,725 [6] 8,017 [7]  
LL Management, Inc.      
Schedule of Investments [Line Items]      
Cost 27,678 [6] 27,980 [7]  
Fair value 27,759 [6] 27,926 [7]  
Mako Steel, LP      
Schedule of Investments [Line Items]      
Cost 14,886 [6] 18,185 [7]  
Fair value 15,049 [6] 18,307 [7]  
MB2 Dental Solutions, LLC      
Schedule of Investments [Line Items]      
Cost 17,851 [13] 16,051 [14]  
Fair value 17,988 [13] 16,214 [14]  
Microbe Formulas, LLC      
Schedule of Investments [Line Items]      
Cost 21,804 [6] 25,556 [7]  
Fair value 22,117 [6] 25,118 [7]  
Mini Melts of America, LLC      
Schedule of Investments [Line Items]      
Cost [6] 10,047    
Fair value [6] 10,047    
MonitorUS Holding, LLC      
Schedule of Investments [Line Items]      
Cost 31,783 [6],[9],[15] 27,494 [7],[11],[17]  
Fair value 32,993 [6],[9],[15] 28,577 [7],[11],[17]  
NinjaTrader, LLC      
Schedule of Investments [Line Items]      
Cost 27,335 [6] 21,379 [7]  
Fair value 27,681 [6] 21,628 [7]  
NWN Corporation      
Schedule of Investments [Line Items]      
Cost [7]   49,085  
Fair value [7]   47,530  
Paragon Healthcare, Inc.      
Schedule of Investments [Line Items]      
Cost 21,321 [6] 20,898 [7]  
Fair value 21,676 [6] 21,118 [7]  
Power System Solutions      
Schedule of Investments [Line Items]      
Cost [6] 19,000    
Fair value [6] 19,414    
PrimeFlight Aviation Services      
Schedule of Investments [Line Items]      
Cost [6] 8,488    
Fair value [6] 8,720    
Project Eagle Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [7]   29,022  
Fair value [7]   29,401  
PTL US Bidco, Inc      
Schedule of Investments [Line Items]      
Cost 28,969 [6],[9],[15],[16] 27,575 [7],[11],[17]  
Fair value 29,261 [6],[9],[15],[16] 27,737 [7],[11],[17]  
Purge Rite, LLC      
Schedule of Investments [Line Items]      
Cost [6] 12,844    
Fair value [6] 12,844    
RA Outdoors LLC      
Schedule of Investments [Line Items]      
Cost 14,096 [6] 13,230 [7]  
Fair value 13,284 [6] 12,083 [7]  
RM Bidder, LLC      
Schedule of Investments [Line Items]      
Cost [7]   471  
Fair value [7]   19  
Richardson Sales Solutions      
Schedule of Investments [Line Items]      
Cost [6] 41,945    
Fair value [6] 42,485    
Roof Opco, LLC      
Schedule of Investments [Line Items]      
Cost 6,648 [6] 5,716 [7]  
Fair value 6,580 [6] 5,817 [7]  
RTIC Subsidiary Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 15,368 [6] 17,849 [7]  
Fair value 15,044 [6] 16,625 [7]  
Rug Doctor, LLC.      
Schedule of Investments [Line Items]      
Cost 13,808 [6] 13,813 [7]  
Fair value 13,830 [6] 12,515 [7]  
SIB Holdings, LLC      
Schedule of Investments [Line Items]      
Cost [7]   9,761  
Fair value [7]   9,123  
South Coast Terminals Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 35,730 [6] 41,396 [7]  
Fair value 36,116 [6] 42,500 [7]  
SPAU Holdings, LLC      
Schedule of Investments [Line Items]      
Cost 16,100 [6] 16,223 [7]  
Fair value 16,228 [6] 16,510 [7]  
Stellant Systems, Inc.      
Schedule of Investments [Line Items]      
Cost [13] 16,192    
Fair value [13] 16,504    
U.S. TelePacific Corp.      
Schedule of Investments [Line Items]      
Cost [13] 3,605    
Fair value [13] 3,333    
USA DeBusk LLC      
Schedule of Investments [Line Items]      
Cost [6] 36,280    
Fair value [6] 36,807    
Veregy Consolidated, Inc.      
Schedule of Investments [Line Items]      
Cost 16,787 [13] 16,751 [14]  
Fair value 15,367 [13] 14,849 [14]  
Wall Street Prep, Inc.      
Schedule of Investments [Line Items]      
Cost 4,081 [6] 4,567 [7]  
Fair value 4,450 [6] 4,560 [7]  
Watterson Brands, LLC      
Schedule of Investments [Line Items]      
Cost 30,510 [6] 29,286 [7]  
Fair value 30,832 [6] 29,708 [7]  
West Star Aviation Acquisition, LLC      
Schedule of Investments [Line Items]      
Cost 19,617 [6] 12,129 [7]  
Fair value 21,356 [6] 12,615 [7]  
Winter Services LLC      
Schedule of Investments [Line Items]      
Cost 13,427 [6] 9,797 [7]  
Fair value 13,589 [6] 9,975 [7]  
Xenon Arc, Inc.      
Schedule of Investments [Line Items]      
Cost 60,886 [6] 61,337 [7]  
Fair value 61,885 [6] 61,968 [7]  
Zips Car Wash, LLC      
Schedule of Investments [Line Items]      
Cost 21,573 [6] 21,639 [7]  
Fair value 20,447 [6] 21,891 [7]  
Control investments      
Schedule of Investments [Line Items]      
Cost 1,435,131 [1],[18] 1,270,802 [2],[19]  
Fair value $ 2,006,698 [3],[18] $ 1,703,172 [4],[19] $ 1,489,257
Investment owned, percent of net assets (as a percent) 81.00% 80.80%  
Affiliate investments      
Schedule of Investments [Line Items]      
Cost $ 575,894 [1],[20] $ 635,536 [2],[21]  
Fair value $ 615,002 [3],[20] $ 618,359 [4],[21] 549,214
Investment owned, percent of net assets (as a percent) 24.80% 29.30% [22],[23]  
Non‑Control/Non‑Affiliate investments      
Schedule of Investments [Line Items]      
Cost $ 1,714,935 [1],[24] $ 1,867,414 [2],[25]  
Fair value $ 1,664,571 [3],[24] $ 1,780,646 [4],[25]  
Investment owned, percent of net assets (as a percent) 67.20% 84.40%  
Investment, Identifier [Axis]: 2717 MH, L.P., (2717 MH,L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 6,050 $ 7,552  
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 HPP-MS, L.P.)      
Schedule of Investments [Line Items]      
Fair value 315 248 0
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)      
Schedule of Investments [Line Items]      
Fair value   7,552 3,971
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 996 $ 0  
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 593,928 [13] 593,928 [14]  
Cost $ 3,148 [13] $ 3,148 [14]  
Fair value $ 0 [13] $ 0 [14] 2,079
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14]   18.00%  
PIK Rate [14]   18.00%  
Principal [14]   $ 11,726  
Cost [14]   11,590  
Fair value   11,550 [14] 9,794
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [13] 18.00%    
PIK Rate [13] 18.00%    
Principal [13] $ 423    
Cost [13] 419    
Fair value $ 418 [13] 0  
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [13] 18.00%    
PIK Rate [13] 18.00%    
Principal [13] $ 14,053    
Cost [13] 13,970    
Fair value $ 13,895 [13] $ 11,550  
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 554,353 [13],[26] 554,353 [14],[27]  
Cost $ 0 [13],[26] $ 0 [14],[27]  
Fair value $ 0 [13],[26] $ 0 [14],[27] 1,940
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 5.00% [6],[16],[28] 6.00% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (62) [6],[16],[28] (39) [7],[29],[30],[31]  
Fair value $ 0 [6],[16],[28] $ (39) [7],[29],[30],[31]  
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.43% [6],[16] 10.20% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[29],[31]  
Principal $ 1,921 [6],[16] $ 741 [7],[29],[31]  
Cost 1,894 [6],[16] 653 [7],[29],[31]  
Fair value $ 1,921 [6],[16] $ 741 [7],[29],[31]  
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.43% [6],[16] 10.58% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[29],[31]  
Principal $ 19,817 [6],[16] $ 17,052 [7],[29],[31]  
Cost 19,303 [6],[16] 16,602 [7],[29],[31]  
Fair value $ 19,817 [6],[16] $ 17,052 [7],[29],[31]  
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.43%    
Reference Rate and Spread [6],[16] 6.00%    
Principal [6],[16] $ 1,372    
Cost [6],[16] 1,305    
Fair value [6],[16] $ 1,372    
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.22% [13],[16] 10.14% [14],[31]  
Reference Rate and Spread 5.75% [13],[16] 5.75% [14],[31]  
Principal $ 10,952 [13],[16] $ 21,077 [14],[31]  
Cost 10,856 [13],[16] 20,781 [14],[31]  
Fair value 10,860 [13],[16] $ 18,969 [14],[31]  
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32]   186  
Cost [32]   $ 1,200  
Fair value $ 0 9,400 [32] 7,740
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Fair value   $ 0 144
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 235 [6],[8] 235 [7]  
Cost $ 1,844 [6],[8] $ 1,779 [7]  
Fair value $ 2,120 [6],[8] $ 1,779 [7]  
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.40% [6],[16],[28] 7.40% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (108) [6],[16],[28] (137) [7],[29],[30],[31]  
Fair value $ (108) [6],[16],[28] $ (137) [7],[29],[30],[31]  
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.76% [6],[16] 11.72% [7],[29],[31]  
Reference Rate and Spread 7.40% [6],[16] 7.40% [7],[29],[31]  
Principal $ 28,422 [6],[16] $ 37,491 [7],[29],[31]  
Cost 28,018 [6],[16] 36,819 [7],[29],[31]  
Fair value $ 28,422 [6],[16] $ 37,463 [7],[29],[31]  
Investment, Identifier [Axis]: ASC Interests, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,500 1,500  
Cost $ 1,500 $ 1,500  
Fair value $ 100 800 720
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 178    
Cost $ 178    
Fair value $ 266 $ 0  
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 400 $ 400  
Cost 400 400  
Fair value $ 400 $ 400 200
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 1,650 $ 1,650  
Cost 1,649 1,649  
Fair value 1,597 1,649 1,636
Investment, Identifier [Axis]: ASC Interests, Member Units      
Schedule of Investments [Line Items]      
Fair value $ 100 $ 800  
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 720,000 [6] 720,000 [7]  
Cost $ 720 [6] $ 720 [7]  
Fair value $ 670 [6] $ 660 [7]  
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.16%    
Reference Rate and Spread 6.50% [6],[16] 5.50% [7],[29],[30],[31]  
Principal $ 360 [6],[16] $ 0 [7],[29],[30],[31]  
Cost 360 [6],[16] 0 [7],[29],[30],[31]  
Fair value $ 360 [6],[16] $ 0 [7],[29],[30],[31]  
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.16% [6],[16] 9.32% [7],[29],[31]  
Reference Rate and Spread 5.50% [6],[16] 5.50% [7],[29],[31]  
Principal $ 6,660 [6],[16] $ 6,660 [7],[29],[31]  
Cost 6,660 [6],[16] 6,660 [7],[29],[31]  
Fair value $ 6,660 [6],[16] $ 6,582 [7],[29],[31]  
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 13.16% [6],[16] 11.32% [7],[29],[31]  
Reference Rate and Spread 7.50% [6],[16] 7.50% [7],[29],[31]  
Principal $ 6,660 [6],[16] $ 6,660 [7],[29],[31]  
Cost 6,660 [6],[16] 6,660 [7],[29],[31]  
Fair value $ 6,660 [6],[16] $ 6,593 [7],[29],[31]  
Investment, Identifier [Axis]: ATS Workholding, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3,725,862 [6] 3,725,862 [7]  
Cost $ 3,726 [6] $ 3,726 [7],[33]  
Fair value $ 0 [6] $ 0 [7],[33] 0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 5.00% [6],[34] 5.00% [7],[33]  
Principal $ 2,090 [6],[34] $ 1,901 [7],[33]  
Cost 2,080 [6],[34] 1,901 [7],[33]  
Fair value $ 328 [6],[34] $ 634 [7],[33] 1,088
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 5.00% [6],[34] 5.00% [7],[33]  
Principal $ 3,015 [6],[34] $ 3,015 [7],[33]  
Cost 2,841 [6],[34] 2,857 [7],[33]  
Fair value 473 [6],[34] $ 1,005 [7],[33] 1,917
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [14]   583  
Cost [14]   $ 0  
Fair value $ 0 $ 3,270 [14] 0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[31]   12.23%  
Reference Rate and Spread 7.50% 7.50% [14],[31]  
Principal [14],[31]   $ 6,783  
Cost [14],[31]   6,208  
Fair value $ 0 $ 6,343 [14],[31] 7,092
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% 10.00% [14]  
PIK Rate [14]   10.00%  
Principal [14]   $ 3,396  
Cost [14]   2,291  
Fair value $ 0 $ 2,598 [14] 1,963
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 984 [6],[8] 360 [7]  
Cost $ 965 [6],[8] $ 360 [7]  
Fair value $ 892 [6],[8] $ 406 [7]  
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.25% [6],[16],[28] 7.25% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (120) [6],[16],[28] (57) [7],[29],[30],[31]  
Fair value $ (38) [6],[16],[28] $ (57) [7],[29],[30],[31]  
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.76% [6],[16] 12.17% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16] 7.25% [7],[29],[31]  
Principal $ 24,602 [6],[16] $ 29,071 [7],[29],[31]  
Cost 23,816 [6],[16] 27,927 [7],[29],[31]  
Fair value $ 24,080 [6],[16] $ 27,927 [7],[29],[31]  
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   13.23%  
Reference Rate and Spread [7],[31]   8.50%  
Principal [7],[31]   $ 1,678  
Cost [7],[31]   1,669  
Fair value [7],[31]   $ 1,678  
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   13.23%  
Reference Rate and Spread [7],[31]   8.50%  
Principal [7],[31]   $ 9,891  
Cost [7],[31]   9,825  
Fair value [7],[31]   $ 9,891  
Investment, Identifier [Axis]: Acousti Engineering Company of Florida, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   16.17%  
Reference Rate and Spread [7],[31]   12.50%  
Principal [7],[31]   $ 807  
Cost [7],[31]   800  
Fair value [7],[31]   $ 807  
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   13.88%  
Reference Rate and Spread 7.50% [6],[16],[28] 9.50% [7],[31]  
Principal $ 0 [6],[16],[28] $ 14,618 [7],[31]  
Cost (2) [6],[16],[28] 14,291 [7],[31]  
Fair value $ (2) [6],[16],[28] $ 14,618 [7],[31]  
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.98% [6],[16] 13.57% [7],[31]  
Reference Rate and Spread 7.50% [6],[16] 9.00% [7],[31]  
Principal $ 24,796 [6],[16] $ 4,368 [7],[31]  
Cost 24,526 [6],[16] 4,270 [7],[31]  
Fair value $ 24,796 [6],[16] $ 4,368 [7],[31]  
Investment, Identifier [Axis]: Acumera, Inc., Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [6],[35] 17,525    
Cost [6],[35] $ 0    
Fair value [6],[35] $ 110    
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.00% [6],[16],[36] 10.00% [7],[31],[37]  
Reference Rate and Spread 7.00% [6],[16],[36] 6.00% [7],[31],[37]  
PIK Rate [6],[16],[36] 1.00%    
Principal $ 7,841 [6],[16],[36] $ 4,729 [7],[31],[37]  
Cost 7,841 [6],[16],[36] 4,729 [7],[31],[37]  
Fair value $ 7,684 [6],[16],[36] $ 4,729 [7],[31],[37]  
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.00% [6],[16],[36] 10.00% [7],[31],[37]  
Reference Rate and Spread 7.00% [6],[16],[36] 7.50% [7],[31],[37]  
PIK Rate [6],[16],[36] 1.00%    
Principal $ 21,207 [6],[16],[36] $ 24,086 [7],[31],[37]  
Cost 21,168 [6],[16],[36] 24,033 [7],[31],[37]  
Fair value $ 20,784 [6],[16],[36] $ 24,086 [7],[31],[37]  
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 5.00% [6],[16],[28] 6.00% [7],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30],[31]  
Cost (8) [6],[16],[28] (10) [7],[30],[31]  
Fair value $ (8) [6],[16],[28] $ (10) [7],[30],[31]  
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50% [6],[16] 11.12% [7],[31]  
Reference Rate and Spread 5.00% [6],[16] 6.00% [7],[31]  
Principal $ 6,550 [6],[16] $ 6,617 [7],[31]  
Cost 6,512 [6],[16] 6,565 [7],[31]  
Fair value $ 6,550 [6],[16] $ 6,617 [7],[31]  
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.29% [6],[16] 10.46% [7],[29],[31]  
Reference Rate and Spread 9.75% [6],[16] 6.75% [7],[29],[31]  
PIK Rate [6],[16] 15.29%    
Principal $ 6,462 [6],[16] $ 15,628 [7],[29],[31]  
Cost 6,413 [6],[16] 15,408 [7],[29],[31]  
Fair value $ 5,495 [6],[16] $ 14,606 [7],[29],[31]  
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.29% [6],[16] 12.46% [7],[29],[31]  
Reference Rate and Spread 9.75% [6],[16] 8.75% [7],[29],[31]  
PIK Rate [6],[16] 15.29%    
Principal $ 10,507 [6],[16] $ 15,628 [7],[29],[31]  
Cost 10,413 [6],[16] 15,408 [7],[29],[31]  
Fair value $ 8,922 [6],[16] $ 14,654 [7],[29],[31]  
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[34] 17.29%    
Reference Rate and Spread [6],[16],[34] 11.75%    
PIK Rate [6],[16],[34] 17.29%    
Principal [6],[16],[34] $ 5,705    
Cost [6],[16],[34] 5,645    
Fair value [6],[16],[34] $ 3,369    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[34] 17.29%    
Reference Rate and Spread [6],[16],[34] 11.75%    
PIK Rate [6],[16],[34] 17.29%    
Principal [6],[16],[34] $ 9,283    
Cost [6],[16],[34] 9,169    
Fair value [6],[16],[34] 5,482    
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [14],[33]   7.50%  
Reference Rate and Spread [14],[33]   6.50%  
Principal 2,980 [13],[34],[38] $ 2,980 [14],[33]  
Cost 2,980 [13],[34],[38] 2,980 [14],[33]  
Fair value 134 [13],[34],[38] $ 168 [14],[33]  
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [14],[31],[33]   7.50%  
Reference Rate and Spread [14],[31],[33]   6.50%  
Principal 14,370 [13],[34],[38] $ 14,370 [14],[31],[33]  
Cost 13,706 [13],[34],[38] 13,706 [14],[31],[33]  
Fair value 647 [13],[34],[38] 808 [14],[31],[33]  
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments      
Schedule of Investments [Line Items]      
Fair value 0 (625)  
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Affiliate Investments.1      
Schedule of Investments [Line Items]      
Fair value   0 (15,962)
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments      
Schedule of Investments [Line Items]      
Fair value $ 0 625  
Investment, Identifier [Axis]: Amounts related to investments transferred to or from other 1940 Act classification during the period, Control Investments.1      
Schedule of Investments [Line Items]      
Fair value   $ 0 6,123
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,427 2,427  
Cost $ 2,427 $ 2,427  
Fair value $ 4,860 $ 3,504  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Total Rate 14.13% 14.13%  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 3,200 3,200  
Total Rate 14.13% 14.13%  
Cost $ 3,200 $ 3,200  
Fair value 0 0  
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1      
Schedule of Investments [Line Items]      
Fair value $ 4,860 $ 3,504 4,894
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [16] 15.38%    
Reference Rate and Spread 10.00% [16] 10.00% [30],[31]  
Principal $ 220 [16] $ 0 [30],[31]  
Cost 219 [16] (3) [30],[31]  
Fair value $ 219 [16] $ (3) [30],[31] (4)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.38% [16] 14.13% [31]  
Reference Rate and Spread 10.00% [16] 10.00% [31]  
Principal $ 4,125 [16] $ 4,665 [31]  
Cost 4,084 [16] 4,545 [31]  
Fair value $ 4,084 [16] $ 4,545 [31] 4,740
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 420 [26] 420 [27]  
Cost $ 316 [26] $ 316 [27]  
Fair value $ 0 [26] $ 0 [27] 0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,898 [6] 234 [7]  
Cost $ 234 [6] $ 234 [7]  
Fair value $ 0 [6] $ 0 [7]  
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) [6] 32,507    
Cost [6] $ 14,060    
Fair value [6] $ 14,060    
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) [6] 32,507    
Cost [6] $ 0    
Fair value [6] $ 0    
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00% [6] 13.41% [7],[31]  
Reference Rate and Spread [7],[31]   9.00%  
PIK Rate [6] 15.00%    
Principal $ 1,907 [6] $ 4,678 [7],[31]  
Cost 1,907 [6] 4,569 [7],[31]  
Fair value $ 1,907 [6] $ 3,945 [7],[31]  
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.04% [6],[16] 13.56% [7],[31]  
Reference Rate and Spread 6.50% [6],[16] 9.00% [7],[31]  
PIK Rate [6],[16] 12.04%    
Principal $ 7,149 [6],[16] $ 29,722 [7],[31]  
Cost 7,149 [6],[16] 29,261 [7],[31]  
Fair value $ 7,149 [6],[16] $ 25,065 [7],[31]  
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,387,832 [6] 1,387,832 [7]  
Cost $ 1,388 [6] $ 1,388 [7]  
Fair value 2,230 [6] $ 1,388 [7]  
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [7],[29],[30],[31]   6.50%  
Principal [7],[29],[30],[31]   $ 0  
Cost [7],[29],[30],[31]   (135)  
Fair value [7],[29],[30],[31]   $ (135)  
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   10.92%  
Reference Rate and Spread [7],[29],[31]   6.50%  
Principal [7],[29],[31]   $ 67,597  
Cost [7],[29],[31]   66,330  
Fair value [7],[29],[31]   $ 66,511  
Investment, Identifier [Axis]: Arrow International, Inc, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31],[39]   10.36%  
Reference Rate and Spread [7],[29],[31],[39]   6.60%  
Principal [7],[29],[31],[39]   $ 36,000  
Cost [7],[29],[31],[39]   35,737  
Fair value [7],[29],[31],[39]   $ 36,000  
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares)   800,000  
Cost   $ 800  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)      
Schedule of Investments [Line Items]      
Total Rate   15.00%  
PIK Rate 15.00%    
Cost   $ 162  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [31],[40]   15.12%  
Reference Rate and Spread 11.00% 11.00% [31],[40]  
Principal [31],[40]   $ 800  
Cost [31],[40]   800  
Fair value $ 0 $ 800 [31],[40] 800
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [31],[40]   15.12%  
Reference Rate and Spread 11.00% 11.00% [31],[40]  
Principal [31],[40]   $ 4,000  
Cost [31],[40]   4,000  
Fair value $ 0 $ 2,086 [31],[40] 1,707
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 37 [6] 37 [7]  
Cost $ 1,584 [6] $ 1,584 [7]  
Fair value $ 4,140 [6] $ 3,320 [7] 1,930
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 7.00% [6] 7.00% [7]  
Principal $ 711 [6] $ 711 [7]  
Cost 711 [6] 711 [7]  
Fair value $ 711 [6] $ 711 [7] 710
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 4,073 [8] 4,073 [32]  
Cost $ 4,095 [8] $ 4,095 [32]  
Fair value $ 6,150 [8] 4,095 [32] 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Principal $ 0 [28] 0 [30]  
Cost (6) [28] (8) [30]  
Fair value $ 0 [28] (8) [30] 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Principal $ 270 0 [30]  
Cost 270 0 [30]  
Fair value $ 270 $ 0 [30] 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.00% 11.00%  
Principal $ 10,575 $ 11,025  
Cost 10,508 10,933  
Fair value $ 10,575 $ 10,933 0
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 122,416 [6],[41] 122,416 [7],[30],[32],[42]  
PIK Rate [7],[30],[32],[42]   16.00%  
Cost $ 0 [6],[41] $ 0 [7],[30],[32],[42]  
Fair value $ 200 [6],[41] $ 270 [7],[30],[32],[42]  
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 1,548,387 [6],[8],[41] 1,548,387 [7],[32],[42]  
Total Rate [7],[32],[42]   8.00%  
PIK Rate [7],[32],[42]   8.00%  
Cost $ 0 [6],[8],[41] $ 1,161 [7],[32],[42]  
Fair value $ 2,560 [6],[8],[41] $ 4,561 [7],[32],[42]  
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7]   12.00%  
PIK Rate [7]   1.50%  
Principal [7]   $ 195  
Cost [7]   195  
Fair value [7]   $ 195  
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.25% [6],[16],[28] 1.00% [7],[29],[30],[31]  
PIK Rate [7],[29],[30],[31]   6.00%  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (62) [6],[16],[28] (76) [7],[29],[30],[31]  
Fair value $ (62) [6],[16],[28] $ (76) [7],[29],[30],[31]  
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.64% [6],[16] 11.40% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16] 1.00% [7],[29],[31]  
PIK Rate 6.25% [6],[16] 6.00% [7],[29],[31]  
Principal $ 29,403 [6],[16] $ 27,505 [7],[29],[31]  
Cost 29,006 [6],[16] 27,020 [7],[29],[31]  
Fair value $ 27,550 [6],[16] $ 27,505 [7],[29],[31]  
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,050,000 [6] 1,050,000 [7]  
Cost $ 1,050 [6] $ 1,050 [7]  
Fair value $ 120 [6] $ 420 [7]  
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 723,184 [13] 723,184 [14],[32]  
Cost $ 1 [13] $ 1 [14],[32]  
Fair value $ 550 [13] $ 4,860 [14],[32]  
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 16.00%    
Reference Rate and Spread 7.50% [13],[16] 8.50% [14],[30],[31]  
PIK Rate [13],[16] 15.00%    
Principal $ 1,885 [13],[16] $ 0 [14],[30],[31]  
Cost 1,885 [13],[16] 0 [14],[30],[31]  
Fair value $ 1,767 [13],[16] $ 0 [14],[30],[31]  
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.96% [13],[16] 12.94% [14],[31]  
Reference Rate and Spread 8.50% [13],[16] 8.50% [14],[31]  
PIK Rate [13],[16] 12.96%    
Principal $ 3,676 [13],[16] $ 3,239 [14],[31]  
Cost 3,076 [13],[16] 2,280 [14],[31]  
Fair value $ 3,446 [13],[16] $ 3,139 [14],[31]  
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 163,295 [13],[26] 163,295 [14],[27]  
Cost $ 1,036 [13],[26] $ 1,036 [14],[27]  
Fair value $ 120 [13],[26] $ 1,095 [14],[27]  
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,160,000 2,160,000 [32]  
Cost $ 2,256 $ 2,256 [32]  
Fair value $ 1,990 $ 2,970 [32] 4,830
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% 10.00%  
Principal $ 320 $ 320  
Cost 320 320  
Fair value $ 320 320 320
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class A Preferred Member Units      
Schedule of Investments [Line Items]      
Fair value   $ 0 10,194
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 140,000 [8] 140,000 [32]  
Total Rate 8.00% [8] 8.00% [32]  
Cost $ 14,000 [8] $ 14,000 [32]  
Fair value $ 31,020 [8] $ 31,420 [32] 23,170
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.48% [16],[43] 13.39% [29],[31],[44]  
Reference Rate and Spread 9.11% [16],[43] 9.26% [29],[31],[44]  
Principal $ 96,556 [16],[43] $ 99,194 [29],[31],[44]  
Cost 96,078 [16],[43] 98,576 [29],[31],[44]  
Fair value $ 96,556 [16],[43] 99,194 [29],[31],[44]  
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 1      
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   13.39%  
Reference Rate and Spread   9.26%  
Fair value   $ 99,194 39,000
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6],[9],[15] 571    
Cost [6],[9],[15] $ 0    
Fair value [6],[9],[15] $ 0    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6],[9],[15] 571    
Cost [6],[9],[15] $ 571    
Fair value [6],[9],[15] $ 500    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[9],[15],[16],[28] 7.00%    
Principal [6],[9],[15],[16],[28] $ 0    
Cost [6],[9],[15],[16],[28] (25)    
Fair value [6],[9],[15],[16],[28] $ (25)    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[9],[15],[16] 11.54%    
Reference Rate and Spread [6],[9],[15],[16] 6.00%    
Principal [6],[9],[15],[16] $ 6,405    
Cost [6],[9],[15],[16] 6,294    
Fair value [6],[9],[15],[16] $ 6,405    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[9],[15],[16] 13.54%    
Reference Rate and Spread [6],[9],[15],[16] 8.00%    
Principal [6],[9],[15],[16] $ 6,405    
Cost [6],[9],[15],[16] 6,294    
Fair value [6],[9],[15],[16] $ 6,405    
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.75% [6],[16],[34],[38] 12.50% [7],[31],[33],[40]  
Reference Rate and Spread 7.25% [6],[16],[34],[38] 9.25% [7],[31],[33],[40]  
Principal $ 761 [6],[16],[34],[38] $ 761 [7],[31],[33],[40]  
Cost 761 [6],[16],[34],[38] 761 [7],[31],[33],[40]  
Fair value $ 761 [6],[16],[34],[38] $ 761 [7],[31],[33],[40]  
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.75% [6],[16],[34],[38] 12.50% [7],[31],[33],[40]  
Reference Rate and Spread 7.25% [6],[16],[34],[38] 9.25% [7],[31],[33],[40]  
Principal $ 7,056 [6],[16],[34],[38] $ 7,056 [7],[31],[33],[40]  
Cost 7,056 [6],[16],[34],[38] 7,056 [7],[31],[33],[40]  
Fair value $ 1,075 [6],[16],[34],[38] $ 2,916 [7],[31],[33],[40]  
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,950 [8] 2,950 [32]  
Cost $ 4,280 [8] $ 4,280 [32]  
Fair value $ 5,620 [8] $ 7,080 [32] 7,710
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 15.46% [16] 14.12% [31]  
Reference Rate and Spread 10.00% [16] 10.00% [31]  
Principal $ 5,498 [16] $ 5,964 [31]  
Cost 5,498 [16] 5,964 [31]  
Fair value $ 5,498 [16] $ 5,964 [31] 8,037
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 17,742 [8],[41] 17,742 [32],[42]  
Cost $ 1,000 [8],[41] $ 1,000 [32],[42]  
Fair value $ 1,000 [8],[41] $ 1,000 [32],[42] 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 8,813 $ 8,813  
Cost 8,813 8,813  
Fair value $ 8,813 $ 8,813 8,813
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00% [42]  
Principal $ 1,000 $ 1,000 [42]  
Cost 1,000 1,000 [42]  
Fair value $ 1,000 $ 1,000 [42] 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 82 [26] 82 [27]  
Cost $ 2,132 [26] $ 2,132 [27]  
Fair value 4,290 [26] 4,340 [27]  
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 1      
Schedule of Investments [Line Items]      
Fair value 1,808 1,828 1,712
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 2      
Schedule of Investments [Line Items]      
Fair value $ 2,482 $ 2,512 2,348
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 1.55% [9],[10],[45] 1.55% [11],[12],[32],[46]  
Cost $ 6,527 [9],[10],[45] $ 7,062 [11],[12],[32],[46]  
Fair value $ 4,080 [9],[10],[45] $ 4,727 [11],[12],[32],[46]  
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% [8],[9],[10],[45] 0.59% [11],[12],[32],[46]  
Cost $ 4,350 [8],[9],[10],[45] $ 4,350 [11],[12],[32],[46]  
Fair value $ 4,358 [8],[9],[10],[45] $ 4,541 [11],[12],[32],[46]  
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund V, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 0.82% [8],[9],[10],[45] 1.31% [11],[12],[46]  
Cost $ 2,000 [8],[9],[10],[45] $ 2,000 [11],[12],[46]  
Fair value $ 2,448 [8],[9],[10],[45] $ 2,229 [11],[12],[46]  
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 6 6  
Total Rate 6.00% 6.00%  
PIK Rate 6.00% 6.00%  
Cost $ 4,770 $ 4,770  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [38] 9.00%  
Principal $ 16,980 [38] $ 17,355  
Cost 16,980 [38] 17,355  
Fair value $ 12,144 [38] $ 12,337 14,370
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 10.46%    
Reference Rate and Spread 5.00% [6],[16] 5.00% [7],[30],[31]  
Principal $ 465 [6],[16] $ 0 [7],[30],[31]  
Cost 445 [6],[16] (28) [7],[30],[31]  
Fair value $ 465 [6],[16] $ 0 [7],[30],[31]  
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.46% [6],[16] 8.91% [7],[31]  
Reference Rate and Spread 5.00% [6],[16] 5.00% [7],[31]  
Principal $ 19,681 [6],[16] $ 19,933 [7],[31]  
Cost 19,455 [6],[16] 19,656 [7],[31]  
Fair value $ 19,681 [6],[16] $ 19,933 [7],[31]  
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) 1,788,527 1,788,527 [32]  
Cost $ 1,789 $ 1,789 [32]  
Fair value $ 1,789 $ 1,789 [32]  
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) 596,176 596,176  
Cost $ 0 $ 0  
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: CBT Nuggets, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 416 [8] 416 [32]  
Cost $ 1,300 [8] $ 1,300 [32]  
Fair value 50,130 [8] $ 49,002 [32] 50,620
Investment, Identifier [Axis]: CMS Minerals Investments, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32],[42]   100  
Cost [32],[42]   $ 1,304  
Fair value $ 0 $ 1,670 [32],[42] 1,974
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 7.00%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (66)    
Fair value [6],[16],[28] $ (66)    
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 7.00%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (66)    
Fair value [6],[16],[28] $ (66)    
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.45%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 11,250    
Cost [6],[16] 10,920    
Fair value [6],[16] $ 10,920    
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[31],[47]   11.99%  
Reference Rate and Spread [7],[31],[47]   8.50%  
PIK Rate [7],[31],[47]   0.01%  
Principal [7],[31],[47]   $ 28,328  
Cost [7],[31],[47]   28,264  
Fair value [7],[31],[47]   $ 28,328  
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,233 [8] 1,233 [32]  
Cost $ 1,742 [8] $ 1,742 [32]  
Fair value $ 1,980 [8] $ 2,210 [32] 2,570
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 3,671 [8] 3,671 [32]  
Total Rate 15.00% [8] 15.00% [32]  
PIK Rate 15.00% [8] 15.00% [32]  
Cost $ 4,601 [8] $ 3,994 [32]  
Fair value 4,601 [8] 3,994 [32]  
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value $ 15,695 $ 25,495 13,275
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 6,157 [8] 6,157 [32]  
Cost $ 10,775 [8] $ 10,775 [32]  
Fair value $ 15,695 [8] $ 25,495 [32]  
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1      
Schedule of Investments [Line Items]      
Total Rate 15.00% 15.00%  
PIK Rate 15.00% 15.00%  
Fair value $ 4,601 $ 3,994 9,510
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 15.69% [8],[16] 13.75% [31]  
Reference Rate and Spread 10.00% [8],[16] 10.00% [31]  
Principal $ 28,000 [8],[16] $ 28,000 [31]  
Cost 27,965 [8],[16] 27,951 [31]  
Fair value $ 27,655 [8],[16] $ 28,000 [31] 27,915
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[31]   10.88%  
Reference Rate and Spread [14],[31]   6.50%  
Principal [14],[31]   $ 15,218  
Cost [14],[31]   15,110  
Fair value [14],[31]   $ 14,685  
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 450,000 450,000  
Cost $ 4,500 $ 4,500  
Fair value $ 4,500 $ 4,500 4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [16] 11.38%    
Reference Rate and Spread 6.00% [16] 6.00% [30],[31]  
Principal $ 900 [16] $ 0 [30],[31]  
Cost 881 [16] (9) [30],[31]  
Fair value $ 881 [16] $ (9) [30],[31] 0
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% 12.50%  
Principal $ 20,025 $ 20,250  
Cost 19,906 20,090  
Fair value $ 19,906 $ 20,090 20,050
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 245,926 [6] 245,926 [7]  
Cost $ 246 [6] $ 246 [7]  
Fair value $ 246 [6] $ 246 [7]  
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.00% [6],[16],[28] 6.00% [7],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30],[31]  
Cost (8) [6],[16],[28] (11) [7],[30],[31]  
Fair value $ (8) [6],[16],[28] $ (11) [7],[30],[31]  
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.61% [6],[16] 10.73% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[31]  
Principal $ 7,933 [6],[16] $ 7,993 [7],[31]  
Cost 7,872 [6],[16] 7,914 [7],[31]  
Fair value $ 7,933 [6],[16] $ 7,914 [7],[31]  
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.61% [6],[16] 10.48% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 5.75% [7],[31]  
Principal $ 6,102 [6],[16] $ 6,133 [7],[31]  
Cost 6,061 [6],[16] 6,079 [7],[31]  
Fair value $ 6,102 [6],[16] $ 6,133 [7],[31]  
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 13,309 13,309  
Cost $ 6,122 $ 6,122  
Fair value $ 11,040 $ 8,700 5,840
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 9.00% [16],[28] 9.00% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost 0 [16],[28] 0 [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.48% [16] 13.13% [31]  
Reference Rate and Spread 9.00% [16] 9.00% [31]  
Principal $ 17,574 [16] $ 15,030 [31]  
Cost 17,512 [16] 14,954 [31]  
Fair value $ 17,574 [16] $ 14,954 [31] 8,864
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 4,347 [8] 4,347 [32]  
Cost $ 11,440 [8] $ 11,440 [32]  
Fair value $ 29,320 [8] $ 22,920 [32] 24,140
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 1,047,146 [8],[41] 1,047,146 [32],[42]  
Cost $ 1,773 [8],[41] $ 1,773 [32],[42]  
Fair value $ 2,860 [8],[41] $ 2,710 [32],[42] 1,540
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.00% [16],[28] 6.00% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost (195) [16],[28] 0 [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.49% [16] 12.13% [31]  
Reference Rate and Spread 8.00% [16] 8.00% [31]  
Principal $ 15,620 [16] $ 16,945 [31]  
Cost 15,617 [16] 16,935 [31]  
Fair value 15,620 [16] $ 16,945 [31] 17,817
Investment, Identifier [Axis]: Chandler Signs Holdings, LLC, Class A Units      
Schedule of Investments [Line Items]      
Units (in shares) [7]   1,500,000  
Cost [7]   $ 1,500  
Fair value $ 0 $ 1,790 [7] 460
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.60% [6],[16],[48] 10.72% [7],[29],[31],[49]  
Reference Rate and Spread 7.00% [6],[16],[48] 6.25% [7],[29],[31],[49]  
Principal $ 2,071 [6],[16],[48] $ 1,868 [7],[29],[31],[49]  
Cost 1,901 [6],[16],[48] 1,767 [7],[29],[31],[49]  
Fair value $ 1,988 [6],[16],[48] $ 1,841 [7],[29],[31],[49]  
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.66% [6],[16] 10.71% [7],[29],[31],[50]  
Reference Rate and Spread 7.00% [6],[16] 6.25% [7],[29],[31],[50]  
Principal $ 36,540 [6],[16] $ 39,047 [7],[29],[31],[50]  
Cost 36,077 [6],[16] 38,396 [7],[29],[31],[50]  
Fair value $ 35,064 [6],[16] $ 38,484 [7],[29],[31],[50]  
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.66%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 2,024    
Cost [6],[16] 1,999    
Fair value [6],[16] $ 1,943    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.66%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 4,893    
Cost [6],[16] 4,792    
Fair value [6],[16] $ 4,695    
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,829 [8] 1,829 [32]  
Cost $ 1,963 [8] $ 1,963 [32]  
Fair value $ 15,690 [8] $ 13,340 [32] 13,990
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% 10.00%  
Principal $ 5,694 $ 5,694  
Cost 4,678 4,643  
Fair value $ 5,694 $ 5,694 5,694
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 717 [8] 717 [32]  
Cost $ 7,280 [8] $ 7,280 [32]  
Fair value $ 5,200 [8] $ 8,220 [32] 10,250
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 800 [41] 800 [42]  
Cost $ 509 [41] $ 210 [42]  
Fair value $ 1,129 [41] $ 610 [42] 530
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.50%    
Reference Rate and Spread [29],[30],[31]   9.00%  
Principal $ 0 [28] $ 0 [29],[30],[31]  
Cost 0 [28] 0 [29],[30],[31]  
Fair value $ 0 [28] $ 0 [29],[30],[31] 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.50% 13.23% [29],[31]  
Reference Rate and Spread [29],[31]   9.00%  
Principal $ 8,560 $ 10,480 [29],[31]  
Cost 8,560 10,440 [29],[31]  
Fair value $ 8,422 $ 10,440 [29],[31]  
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate   13.23%  
Reference Rate and Spread   9.00%  
Fair value   $ 10,440 10,401
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 10.00% 10.00%  
Principal $ 1,013 $ 1,049  
Cost 1,004 1,039  
Fair value 1,004 $ 1,039 1,071
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[33],[40]   15.00%  
PIK Rate [7],[33],[40]   15.00%  
Principal 2,677 [6],[34],[38] $ 2,712 [7],[33],[40]  
Cost 2,677 [6],[34],[38] 2,712 [7],[33],[40]  
Fair value $ 16 [6],[34],[38] $ 19 [7],[33],[40]  
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 154 [8] 154 [32]  
Cost $ 5,760 [8] $ 5,760 [32]  
Fair value $ 16,000 [8] $ 24,637 [32] 15,260
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.69% [16] 9.75% [31]  
Reference Rate and Spread 6.00% [16] 6.00% [31]  
Principal $ 4,560 [16] $ 4,560 [31]  
Cost 4,560 [16] 4,560 [31]  
Fair value $ 4,560 [16] $ 4,560 [31] 4,000
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 8.00% 8.00%  
Principal $ 19,274 $ 19,274  
Cost 19,224 19,182  
Fair value $ 19,274 $ 19,274 19,274
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 587 [8],[41] 587 [32],[42]  
Cost $ 8,317 [8],[41] $ 8,317 [32],[42]  
Fair value 72,470 [8],[41] $ 58,180 [32],[42] 47,640
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [31]   15.38%  
Reference Rate and Spread [31]   10.50%  
Principal 0 [28] $ 1,462 [31]  
Cost (11) [28] 1,443 [31]  
Fair value $ 0 [28] 1,462 [31]  
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.2      
Schedule of Investments [Line Items]      
Total Rate   15.38%  
Reference Rate and Spread   10.50%  
Fair value   $ 1,462 (13)
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% 15.38% [31]  
Reference Rate and Spread [31]   10.50%  
Principal $ 42,073 $ 40,801 [31]  
Cost 42,042 40,521 [31]  
Fair value $ 42,073 40,801 [31]  
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Fair value $ 42,073 $ 0  
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.2      
Schedule of Investments [Line Items]      
Total Rate   15.38%  
Reference Rate and Spread   10.50%  
Fair value   $ 40,801 42,497
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Reference Rate and Spread 10.50%    
Fair value $ 0 1,462  
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4      
Schedule of Investments [Line Items]      
Reference Rate and Spread 10.50%    
Fair value $ 0 $ 40,801  
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32]   17,280  
Cost [32]   $ 7,680  
Fair value   9,160 [32] 9,130
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 960    
Cost $ 960    
Fair value $ 2,400 0  
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 17,280    
Cost $ 7,680    
Fair value 7,680 9,160  
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [28] 0 [30]  
Cost 0 [28] 0 [30]  
Fair value $ 0 [28] $ 0 [30] 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 22,050 $ 23,310  
Cost 21,946 23,151  
Fair value $ 21,627 $ 23,151 24,351
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,975 [8] 1,975 [32]  
Cost $ 1,975 [8] $ 1,975 [32]  
Fair value $ 14,450 [8] $ 19,830 [32] 12,000
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 9.00% [16],[28],[38] 9.00% [30],[31],[40]  
Principal $ 0 [16],[28],[38] $ 0 [30],[31],[40]  
Cost 0 [16],[28],[38] 0 [30],[31],[40]  
Fair value $ 0 [16],[28],[38] $ 0 [30],[31],[40] 0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.48% [16] 13.13% [31]  
Reference Rate and Spread 9.00% [16] 9.00% [31]  
Principal $ 3,454 [16] $ 5,241 [31]  
Cost 3,454 [16] 5,232 [31]  
Fair value $ 3,454 [16] 5,241 [31] 6,477
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 7,454    
Cost $ 7,454    
Fair value $ 7,454 0  
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.50%    
Principal [28] $ 0    
Cost [28] 0    
Fair value $ 0 [28] 0  
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50%    
Principal $ 17,200    
Cost 17,034    
Fair value $ 17,034 $ 0  
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.52% [6],[16],[51] 12.56% [7],[31],[52]  
Reference Rate and Spread 8.00% [6],[16],[51] 8.00% [7],[31],[52]  
Principal $ 5,000 [6],[16],[51] $ 5,000 [7],[31],[52]  
Cost 4,948 [6],[16],[51] 4,928 [7],[31],[52]  
Fair value $ 4,848 [6],[16],[51] $ 4,621 [7],[31],[52]  
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.52% [6],[16] 12.56% [7],[31]  
Reference Rate and Spread 8.00% [6],[16] 8.00% [7],[31]  
Principal $ 18,313 [6],[16] $ 18,588 [7],[31]  
Cost 18,119 [6],[16] 18,315 [7],[31]  
Fair value 17,757 [6],[16] 17,178 [7],[31]  
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)      
Schedule of Investments [Line Items]      
Fair value $ 4,352 $ 7,657  
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% [8],[9],[10],[45] 13.32% [11],[12],[32],[46]  
Cost $ 4,778 [8],[9],[10],[45] $ 8,096 [11],[12],[32],[46]  
Fair value $ 4,352 [8],[9],[10],[45] 7,657 [11],[12],[32],[46]  
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)      
Schedule of Investments [Line Items]      
Fair value   $ 7,657 9,959
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 861,618 [6] 861,618 [7],[32]  
Cost $ 3,335 [6] $ 3,335 [7],[32]  
Fair value $ 23,135 [6] $ 21,165 [7],[32]  
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 38.75% [8],[9],[10],[45] 38.75% [11],[12],[46]  
Cost $ 568 [8],[9],[10],[45] $ 588 [11],[12],[46]  
Fair value $ 568 [8],[9],[10],[45] 588 [11],[12],[46] 710
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 556    
Cost $ 15,000    
Fair value $ 15,000 0  
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Fair value $ 0 0  
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [28] 0    
Cost [28] 0    
Fair value [28] $ 0    
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Fair value $ 28,389 $ 0  
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Principal $ 28,638    
Cost 28,389    
Fair value $ 28,389    
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 5,944 5,944  
Cost $ 5,944 $ 5,944  
Fair value $ 7,660 $ 7,260 5,944
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 18,800 $ 21,200  
Cost 18,685 21,035  
Fair value $ 18,800 $ 21,200 20,993
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 776,316 [6] 776,316 [7]  
Total Rate 8.00% [6] 8.00% [7]  
PIK Rate 8.00% [6] 8.00% [7]  
Cost $ 776 [6] $ 776 [7]  
Fair value $ 260 [6] $ 380 [7]  
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)      
Schedule of Investments [Line Items]      
Total Rate 10.00% [6],[8] 10.00% [7],[32]  
PIK Rate 10.00% [6],[8] 10.00% [7],[32]  
Cost $ 1,284 [6],[8] $ 1,161 [7],[32]  
Fair value $ 1,284 [6],[8] $ 1,161 [7],[32]  
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [7],[30],[31]   7.50%  
Principal [7],[30],[31]   $ 0  
Cost [7],[30],[31]   (1)  
Fair value [7],[30],[31]   $ (1)  
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   12.24%  
Reference Rate and Spread [7],[31]   7.50%  
Principal [7],[31]   $ 6,074  
Cost [7],[31]   6,065  
Fair value [7],[31]   $ 5,934  
Investment, Identifier [Axis]: Dalton US Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 515 [6] 201 [7]  
Cost $ 720 [6] $ 201 [7]  
Fair value $ 830 [6] $ 201 [7]  
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   11.90%  
Reference Rate and Spread [7],[29],[31]   8.00%  
Principal [7],[29],[31]   $ 1,092  
Cost [7],[29],[31]   871  
Fair value [7],[29],[31]   $ 1,077  
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread [7],[29],[30],[31]   8.00%  
Principal [7],[29],[30],[31]   $ 0  
Cost [7],[29],[30],[31]   (74)  
Fair value [7],[29],[30],[31]   $ (74)  
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   12.56%  
Reference Rate and Spread [7],[29],[31]   8.00%  
Principal [7],[29],[31]   $ 14,389  
Cost [7],[29],[31]   14,125  
Fair value [7],[29],[31]   $ 14,186  
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 9,000 9,000 [32]  
Cost $ 2,610 $ 2,610 [32]  
Fair value $ 70 $ 2,670 [32] 2,610
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 7.50% 7.50%  
Principal $ 450 $ 223  
Cost 447 223  
Fair value $ 447 $ 223 0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% 7.50%  
Principal $ 8,352 $ 8,622  
Cost 8,073 8,190  
Fair value $ 7,587 $ 7,789 7,668
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3,857 [8] 3,857 [32]  
Cost $ 9,501 [8] $ 9,501 [32]  
Fair value $ 9,835 [8] $ 9,835 [32] 9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 15.38% [16] 14.13% [31]  
Reference Rate and Spread 10.00% [16] 10.00% [31]  
Principal $ 14,873 [16] $ 15,533 [31]  
Cost 14,758 [16] 15,523 [31]  
Fair value $ 14,690 [16] $ 15,523 [31] 16,801
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 8,400 [8] 8,400 [32]  
Cost $ 8,400 [8] $ 8,400 [32]  
Fair value $ 20,740 [8] $ 22,220 [32] 18,350
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 14.00%    
Reference Rate and Spread [30],[31]   11.00%  
Principal $ 1,233 $ 0 [30],[31]  
Cost 1,174 (88) [30],[31]  
Fair value $ 1,233 $ 0 [30],[31] (22)
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.00% 15.13% [31]  
Reference Rate and Spread [31]   11.00%  
Principal $ 25,543 $ 27,267 [31]  
Cost 25,457 27,122 [31]  
Fair value $ 25,543 $ 27,267 [31] 0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Reference Rate and Spread   11.00%  
Fair value   $ 0 24,070
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners - A, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 6.43% [9],[10],[45] 6.43% [11],[12],[46]  
Cost $ 2,005 [9],[10],[45] $ 2,051 [11],[12],[46]  
Fair value $ 2,631 [9],[10],[45] $ 2,898 [11],[12],[46] 3,280
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 20.24% [9],[10],[45] 20.24% [11],[12],[46]  
Cost $ 6,313 [9],[10],[45] $ 6,459 [11],[12],[46]  
Fair value $ 8,443 [9],[10],[45] $ 9,127 [11],[12],[46] 10,329
Investment, Identifier [Axis]: Dos Rios Stone Products LLC, Class A Preferred Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,000,000 [6],[41] 2,000,000 [7],[42]  
Cost $ 2,000 [6],[41] $ 2,000 [7],[42]  
Fair value 1,580 [6],[41] $ 1,330 [7],[42] 640
Investment, Identifier [Axis]: Dreyfus Government Cash Management      
Schedule of Investments [Line Items]      
Cost [53] 13,476    
Fair value [53] $ 13,476    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,250,000 [6] 1,250,000 [7]  
Cost $ 0 [6] $ 0 [7]  
Fair value $ 0 [6] $ 0 [7]  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1      
Schedule of Investments [Line Items]      
Units (in shares) 125,000 [6] 125,000 [7]  
Cost $ 128 [6] $ 128 [7]  
Fair value $ 60 [6] $ 128 [7]  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2      
Schedule of Investments [Line Items]      
Units (in shares) 2,376,241 [6] 2,376,241 [7]  
Cost $ 0 [6] $ 0 [7]  
Fair value $ 0 [6] $ 0 [7]  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.45% [6],[16] 9.18% [7],[29],[31]  
Reference Rate and Spread 5.00% [6],[16] 4.50% [7],[29],[31]  
PIK Rate 10.45% [6],[16] 9.18% [7],[29],[31]  
Principal $ 2,071 [6],[16] $ 1,875 [7],[29],[31]  
Cost 1,912 [6],[16] 1,717 [7],[29],[31]  
Fair value $ 1,912 [6],[16] $ 1,717 [7],[29],[31]  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.45% [6],[16] 11.18% [7],[29],[31]  
Reference Rate and Spread 7.00% [6],[16] 6.50% [7],[29],[31]  
PIK Rate 12.45% [6],[16] 11.18% [7],[29],[31]  
Principal $ 2,113 [6],[16] $ 1,875 [7],[29],[31]  
Cost 1,880 [6],[16] 1,642 [7],[29],[31]  
Fair value $ 1,859 [6],[16] $ 1,642 [7],[29],[31]  
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 [8],[9],[10],[45] 5,000,000 [11],[12],[32],[46]  
Cost $ 808 [8],[9],[10],[45] $ 1,060 [11],[12],[32],[46]  
Fair value $ 760 [8],[9],[10],[45] $ 1,013 [11],[12],[32],[46] 547
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[31]   10.70%  
Reference Rate and Spread [14],[31]   6.00%  
Principal [14],[31]   $ 6,823  
Cost [14],[31]   6,764  
Fair value [14],[31]   $ 6,141  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.50% [6],[16] 11.73% [7],[31]  
Reference Rate and Spread 8.00% [6],[16] 7.00% [7],[31]  
Principal $ 967 [6],[16] $ 3,346 [7],[31]  
Cost 930 [6],[16] 3,290 [7],[31]  
Fair value $ 927 [6],[16] $ 3,276 [7],[31]  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50% [6],[16] 11.73% [7],[31]  
Reference Rate and Spread 8.00% [6],[16] 7.00% [7],[31]  
Principal $ 4,792 [6],[16] $ 5,021 [7],[31]  
Cost 4,758 [6],[16] 4,967 [7],[31]  
Fair value $ 4,596 [6],[16] $ 4,916 [7],[31]  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 13.50% [6],[16] 11.73% [7],[31]  
Reference Rate and Spread 8.00% [6],[16] 7.00% [7],[31]  
Principal $ 9,557 [6],[16] $ 23,456 [7],[31]  
Cost 9,483 [6],[16] 23,149 [7],[31]  
Fair value $ 9,167 [6],[16] $ 22,967 [7],[31]  
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.50%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 1,982    
Cost [6],[16] 1,964    
Fair value [6],[16] $ 1,901    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.50%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 10,846    
Cost [6],[16] 10,747    
Fair value [6],[16] $ 10,403    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 285 378  
Cost $ 5,726 $ 7,603  
Fair value $ 6,090 $ 7,603 0
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 939 [41] 939 [42]  
Cost $ 1,558 [41] $ 1,558 [42]  
Fair value $ 1,670 [41] $ 1,558 [42] 0
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.00% [16],[28] 6.00% [29],[30],[31]  
Principal $ 0 [16],[28] $ 0 [29],[30],[31]  
Cost (7) [16],[28] (9) [29],[30],[31]  
Fair value $ (7) [16],[28] $ (9) [29],[30],[31] 0
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 18,773 $ 18,773  
Cost 18,632 18,594  
Fair value $ 18,632 $ 18,594 0
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.00% 9.00%  
Principal $ 6,313 $ 6,357  
Cost 6,252 6,294  
Fair value $ 6,252 $ 6,294 0
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.79% [13],[16] 10.67% [14],[29],[31]  
Reference Rate and Spread 6.25% [13],[16] 6.25% [14],[29],[31]  
Principal $ 8,965 [13],[16] $ 9,258 [14],[29],[31]  
Cost 8,841 [13],[16] 9,099 [14],[29],[31]  
Fair value $ 8,158 [13],[16] $ 8,787 [14],[29],[31]  
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% [8],[9],[10],[45] 0.10% [11],[12],[32],[46]  
Cost $ 3,564 [8],[9],[10],[45] $ 3,699 [11],[12],[32],[46]  
Fair value $ 1,720 [8],[9],[10],[45] $ 2,019 [11],[12],[32],[46]  
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% [8],[9],[10],[45] 0.38% [11],[12],[32],[46]  
Cost $ 1,980 [8],[9],[10],[45] $ 1,984 [11],[12],[32],[46]  
Fair value $ 899 [8],[9],[10],[45] $ 1,037 [11],[12],[32],[46]  
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% [8],[9],[10],[45] 0.14% [11],[12],[32],[46]  
Cost $ 3,567 [8],[9],[10],[45] $ 3,566 [11],[12],[32],[46]  
Fair value $ 1,918 [8],[9],[10],[45] $ 2,092 [11],[12],[32],[46]  
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% [8],[9],[10],[45] 0.15% [11],[12],[32],[46]  
Cost $ 6,742 [8],[9],[10],[45] $ 8,236 [11],[12],[32],[46]  
Fair value $ 5,858 [8],[9],[10],[45] $ 9,351 [11],[12],[32],[46]  
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% [8],[9],[10],[45] 0.84% [11],[12],[46]  
Cost $ 5,083 [8],[9],[10],[45] $ 5,358 [11],[12],[46]  
Fair value $ 1,413 [8],[9],[10],[45] $ 1,688 [11],[12],[46]  
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% [8],[9],[10],[45] 0.25% [11],[12],[32],[46]  
Cost $ 4,495 [8],[9],[10],[45] $ 6,023 [11],[12],[32],[46]  
Fair value $ 4,056 [8],[9],[10],[45] $ 5,718 [11],[12],[32],[46]  
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   11.68%  
Reference Rate and Spread 5.50% [6],[16],[28] 6.50% [7],[29],[31]  
Principal $ 0 [6],[16],[28] $ 131 [7],[29],[31]  
Cost (35) [6],[16],[28] 85 [7],[29],[31]  
Fair value $ 0 [6],[16],[28] $ 131 [7],[29],[31]  
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.98% [6],[16] 10.92% [7],[29],[31]  
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[29],[31]  
Principal $ 16,134 [6],[16] $ 16,338 [7],[29],[31]  
Cost 15,899 [6],[16] 16,047 [7],[29],[31]  
Fair value $ 16,134 [6],[16] $ 16,338 [7],[29],[31]  
Investment, Identifier [Axis]: Escalent, Inc., Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 649,794    
Cost [6] $ 663    
Fair value [6] $ 730    
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 8.00%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (35)    
Fair value [6],[16],[28] $ (35)    
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.45%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 26,313    
Cost [6],[16] 25,620    
Fair value [6],[16] $ 26,313    
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.61% [6],[16] 10.67% [7],[31],[42]  
Reference Rate and Spread 7.00% [6],[16] 7.00% [7],[31],[42]  
Principal $ 3,692 [6],[16] $ 3,692 [7],[31],[42]  
Cost 3,670 [6],[16] 3,663 [7],[31],[42]  
Fair value $ 3,626 [6],[16] $ 3,507 [7],[31],[42]  
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.61% [6],[16] 10.67% [7],[31],[42]  
Reference Rate and Spread 7.00% [6],[16] 7.00% [7],[31],[42]  
Principal $ 44,169 [6],[16] $ 44,308 [7],[31],[42]  
Cost 43,905 [6],[16] 43,955 [7],[31],[42]  
Fair value 43,373 [6],[16] $ 42,083 [7],[31],[42]  
Investment, Identifier [Axis]: Fidelity Government Fund      
Schedule of Investments [Line Items]      
Cost [54] 1,678    
Fair value [54] 1,678    
Investment, Identifier [Axis]: Fidelity Treasury      
Schedule of Investments [Line Items]      
Cost [55] 70    
Fair value [55] $ 70    
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 9,360 [8] 9,360 [32]  
Cost $ 10,400 [8] $ 10,400 [32]  
Fair value $ 27,900 [8] $ 17,580 [32] 10,400
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [31]   10.75%  
Reference Rate and Spread 6.50% 6.50% [31]  
Principal [31]   $ 7,600  
Cost [31]   7,537  
Fair value $ 0 $ 7,600 [31] 6,324
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [31]   13.25%  
Reference Rate and Spread 9.00% 9.00% [31]  
Principal [31]   $ 21,200  
Cost [31]   21,038  
Fair value $ 0 $ 21,200 [31] 20,996
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   11.21%  
Reference Rate and Spread [7],[29],[31]   7.50%  
Principal [7],[29],[31]   $ 736  
Cost [7],[29],[31]   736  
Fair value [7],[29],[31]   $ 736  
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   12.19%  
Reference Rate and Spread [7],[29],[31]   7.50%  
Principal [7],[29],[31]   $ 11,095  
Cost [7],[29],[31]   10,852  
Fair value [7],[29],[31]   $ 11,095  
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport Financial SBIC Fund LP)      
Schedule of Investments [Line Items]      
Units (as a percent) 9.30% [9],[10],[45] 9.30% [11],[12],[46]  
Cost $ 2,859 [9],[10],[45] $ 3,507 [11],[12],[46]  
Fair value $ 3,012 [9],[10],[45] $ 3,483 [11],[12],[46]  
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% [8],[9],[10],[45] 5.95% [11],[12],[32],[46]  
Cost $ 4,160 [8],[9],[10],[45] $ 6,303 [11],[12],[32],[46]  
Fair value 3,704 [8],[9],[10],[45] 5,848 [11],[12],[32],[46]  
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport Financial SBIC Fund LP)      
Schedule of Investments [Line Items]      
Fair value   3,483 6,078
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund III LP)      
Schedule of Investments [Line Items]      
Fair value 3,704 5,848 7,231
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund LP)      
Schedule of Investments [Line Items]      
Fair value $ 3,012 $ 3,483  
Investment, Identifier [Axis]: Fuse, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 10,429 [13] 10,429 [14]  
Cost $ 256 [13] $ 256 [14]  
Fair value $ 0 [13] $ 0 [14]  
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% [13] 12.00% [14]  
Principal $ 1,810 [13] $ 1,810 [14]  
Cost 1,810 [13] 1,810 [14]  
Fair value $ 1,320 [13] 1,512 [14]  
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [8] 226    
Cost [8] $ 4,900    
Fair value $ 11,460 [8] 7,140  
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 8.00%    
Principal $ 9,345    
Cost 9,302    
Fair value $ 9,345 $ 11,345  
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32]   226  
Cost [32]   $ 4,900  
Fair value   $ 7,140 [32] 6,990
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate   9.00%  
Principal   $ 11,345  
Cost   11,269  
Fair value   $ 11,345 12,545
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 5,879 5,879 [32]  
Cost $ 13,065 $ 13,065 [32]  
Fair value $ 44,440 $ 44,440 [32] 46,190
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.48% 10.12%  
Reference Rate and Spread 6.00% 6.00%  
Principal $ 2,400 $ 670  
Cost 2,394 670  
Fair value $ 2,400 $ 670 0
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.48% 12.12%  
Reference Rate and Spread 8.00% 8.00%  
Principal $ 40,493 $ 40,493  
Cost 40,360 40,313  
Fair value $ 40,493 $ 40,493 38,885
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.96% [6],[16],[56] 11.20% [7],[31]  
Reference Rate and Spread 6.50% [6],[16],[56] 6.50% [7],[31]  
Principal $ 1,545 [6],[16],[56] $ 2,177 [7],[31]  
Cost 1,542 [6],[16],[56] 2,169 [7],[31]  
Fair value $ 1,545 [6],[16],[56] $ 2,171 [7],[31]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   11.24%  
Reference Rate and Spread 6.50% [6],[16],[28] 6.50% [7],[31]  
Principal $ 0 [6],[16],[28] $ 10,734 [7],[31]  
Cost (9) [6],[16],[28] 10,695 [7],[31]  
Fair value $ (9) [6],[16],[28] $ 10,705 [7],[31]  
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.96%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 10,624    
Cost [6],[16] 10,605    
Fair value [6],[16] $ 10,624    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.96%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 952    
Cost [6],[16] 952    
Fair value [6],[16] $ 952    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.96%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 227    
Cost [6],[16] 224    
Fair value [6],[16] $ 227    
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.28% [6],[16],[57] 10.42% [7],[29],[31]  
Reference Rate and Spread 5.75% [6],[16],[57] 6.00% [7],[29],[31]  
Principal $ 454 [6],[16],[57] $ 252 [7],[29],[31]  
Cost 438 [6],[16],[57] 233 [7],[29],[31]  
Fair value $ 454 [6],[16],[57] $ 252 [7],[29],[31]  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.38%    
Reference Rate and Spread 5.75% [6],[16] 6.00% [7],[29],[30],[31]  
Principal $ 301 [6],[16] $ 0 [7],[29],[30],[31]  
Cost 286 [6],[16] (15) [7],[29],[30],[31]  
Fair value $ 301 [6],[16] $ (15) [7],[29],[30],[31]  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.25% [6],[16] 10.73% [7],[29],[31]  
Reference Rate and Spread 5.75% [6],[16] 6.00% [7],[29],[31]  
Principal $ 3,615 [6],[16] $ 3,661 [7],[29],[31]  
Cost 3,558 [6],[16] 3,591 [7],[29],[31]  
Fair value $ 3,615 [6],[16] $ 3,661 [7],[29],[31]  
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 9,042 [8] 9,042 [32]  
Cost $ 17,692 [8] $ 17,692 [32]  
Fair value $ 96,710 [8] $ 50,890 [32] 49,700
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.50% [16],[28],[36] 8.50% [29],[30],[31]  
Principal $ 0 [16],[28],[36] $ 0 [29],[30],[31]  
Cost 0 [16],[28],[36] 0 [29],[30],[31]  
Fair value $ 0 [16],[28],[36] $ 0 [29],[30],[31] 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.50% [16],[36] 11.50% [29],[31]  
Reference Rate and Spread 7.50% [16],[36] 8.50% [29],[31]  
Principal $ 54,078 [16],[36] $ 64,078 [29],[31]  
Cost 53,813 [16],[36] 63,685 [29],[31]  
Fair value $ 54,078 [16],[36] $ 64,078 [29],[31] 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Reference Rate and Spread   7.50%  
Fair value   $ 0 21,598
Investment, Identifier [Axis]: Garreco, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,200 1,200 [32]  
Cost $ 1,200 $ 1,200 [32]  
Fair value $ 1,580 $ 1,800 [32] 2,270
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 9.50% [16],[58] 9.50% [31],[59]  
Reference Rate and Spread 8.00% [16],[58] 8.00% [31],[59]  
Principal $ 3,088 [16],[58] $ 3,826 [31],[59]  
Cost 3,088 [16],[58] 3,826 [31],[59]  
Fair value $ 3,088 [16],[58] $ 3,826 [31],[59] 4,196
Investment, Identifier [Axis]: Garyline, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6],[16] 705,882    
Cost [6],[16] $ 706    
Fair value [6],[16] $ 706    
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.75%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (256)    
Fair value [6],[16],[28] $ (256)    
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.22%    
Reference Rate and Spread [6],[16] 6.75%    
Principal [6],[16] $ 32,471    
Cost [6],[16] 31,529    
Fair value [6],[16] $ 31,529    
Investment, Identifier [Axis]: GeoStabilization International (GSI), Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29]   9.44%  
Reference Rate and Spread [14],[29]   5.25%  
Principal [14],[29]   $ 20,497  
Cost [14],[29]   20,427  
Fair value [14],[29]   $ 19,472  
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 438 [8] 438 [32]  
Cost $ 2,980 [8] $ 2,980 [32]  
Fair value $ 9,070 [8] $ 6,790 [32] 5,640
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3,681 3,681  
Cost $ 3,681 $ 3,681  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 63,720 63,720  
Cost $ 5,600 $ 5,600  
Fair value $ 2,460 $ 3,780 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 9.50% [16],[28] 9.50% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost 0 [16],[28] 0 [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 257
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% 12.50%  
Principal $ 2,400 $ 2,400  
Cost 2,400 2,400  
Fair value $ 2,284 2,284  
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Fair value $ 2,284 $ 2,284  
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2.2      
Schedule of Investments [Line Items]      
PIK Rate   6.25%  
Fair value   $ 0 9,717
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate   12.50%  
Fair value   $ 2,284 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 14.34% [6],[16],[38] 14.34% [7],[29],[31]  
Reference Rate and Spread 9.50% [6],[16],[38] 9.50% [7],[29],[31]  
PIK Rate 14.34% [6],[16],[38] 2.00% [7],[29],[31]  
Principal $ 370 [6],[16],[38] $ 320 [7],[29],[31]  
Cost 370 [6],[16],[38] 319 [7],[29],[31]  
Fair value $ 336 [6],[16],[38] $ 311 [7],[29],[31]  
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.34% [6],[16],[38] 14.34% [7],[29],[31]  
Reference Rate and Spread 9.50% [6],[16],[38] 9.50% [7],[29],[31]  
PIK Rate 14.34% [6],[16],[38] 2.00% [7],[29],[31]  
Principal $ 3,751 [6],[16],[38] $ 3,277 [7],[29],[31]  
Cost 3,751 [6],[16],[38] 3,262 [7],[29],[31]  
Fair value $ 3,406 [6],[16],[38] $ 3,186 [7],[29],[31]  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.50% [6],[16],[28] 6.50% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (48) [6],[16],[28] (62) [7],[29],[30],[31]  
Fair value $ (48) [6],[16],[28] $ (62) [7],[29],[30],[31]  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.86%    
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[29],[30],[31]  
Principal $ 6,733 [6],[16] $ 0 [7],[29],[30],[31]  
Cost 6,622 [6],[16] (62) [7],[29],[30],[31]  
Fair value $ 6,733 [6],[16] $ (62) [7],[29],[30],[31]  
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.86% [6],[16] 10.62% [7],[29],[31]  
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[29],[31]  
Principal $ 16,622 [6],[16] $ 16,791 [7],[29],[31]  
Cost 16,384 [6],[16] 16,483 [7],[29],[31]  
Fair value $ 16,622 [6],[16] $ 16,791 [7],[29],[31]  
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.53% [9],[13],[15],[16] 10.69% [11],[14],[17],[31]  
Reference Rate and Spread 6.00% [9],[13],[15],[16] 6.00% [11],[14],[17],[31]  
Principal $ 25,162 [9],[13],[15],[16] $ 25,290 [11],[14],[17],[31]  
Cost 25,162 [9],[13],[15],[16] 25,290 [11],[14],[17],[31]  
Fair value 24,397 [9],[13],[15],[16] 24,381 [11],[14],[17],[31]  
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, L.P.)      
Schedule of Investments [Line Items]      
Fair value 1,869 1,400  
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, LP)      
Schedule of Investments [Line Items]      
Fair value   1,400 0
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)      
Schedule of Investments [Line Items]      
Fair value 4,225 4,331 4,712
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 4, L.P.)      
Schedule of Investments [Line Items]      
Fair value $ 3,773 $ 2,332 0
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% [9],[10],[45] 49.26% [11],[12],[46]  
Cost $ 248 [9],[10],[45] $ 248 [11],[12],[46]  
Fair value $ 315 [9],[10],[45] $ 248 [11],[12],[46]  
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 49.26% [8],[9],[10],[45] 49.26% [11],[12],[46]  
Cost $ 3,345 [8],[9],[10],[45] $ 3,895 [11],[12],[46]  
Fair value $ 6,050 [8],[9],[10],[45] $ 7,552 [11],[12],[46]  
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) [8],[9],[10],[45] 22.93%    
Cost [8],[9],[10],[45] $ 1,400    
Fair value [8],[9],[10],[45] $ 1,869    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, LP)      
Schedule of Investments [Line Items]      
Units (as a percent) [11],[12],[46]   22.93%  
Cost [11],[12],[46]   $ 1,400  
Fair value [11],[12],[46]   $ 1,400  
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 HAR, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) [9],[10],[45] 15.60%    
Cost [9],[10],[45] $ 750    
Fair value [9],[10],[45] $ 996    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 8.22% [9],[10],[45] 8.22% [11],[12],[46]  
Cost $ 2,296 [9],[10],[45] $ 2,558 [11],[12],[46]  
Fair value $ 4,225 [9],[10],[45] $ 4,331 [11],[12],[46]  
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 4, L.P.)      
Schedule of Investments [Line Items]      
Units (as a percent) 11.61% [9],[10],[45] 8.71% [11],[12],[46]  
Cost $ 3,773 [9],[10],[45] $ 2,332 [11],[12],[46]  
Fair value $ 3,773 [9],[10],[45] $ 2,332 [11],[12],[46]  
Investment, Identifier [Axis]: Harrison Hydra-Gen, Ltd., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 107,456 107,456  
Cost $ 718 $ 718  
Fair value $ 4,660 $ 3,280 3,530
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 226 226 [32]  
Cost $ 2,850 $ 2,850 [32]  
Fair value $ 17,460 $ 17,460 [32] 14,680
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 226 [41] 226 [42]  
Cost $ 150 [41] $ 150 [42]  
Fair value $ 920 [41] $ 920 [42] 770
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.65% [16] 10.13% [31]  
Reference Rate and Spread 6.00% [16] 6.00% [31]  
Principal $ 1,974 [16] $ 3,185 [31]  
Cost 1,972 [16] 3,183 [31]  
Fair value $ 1,974 [16] $ 3,185 [31] 2,585
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% 9.00%  
Principal $ 45,256 $ 37,800  
Cost 45,144 37,685  
Fair value $ 45,256 $ 37,800 34,800
Investment, Identifier [Axis]: Heartland Dental, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   10.88%  
Reference Rate and Spread [7],[31]   6.50%  
Principal [7],[31]   $ 14,663  
Cost [7],[31]   14,430  
Fair value [7],[31]   $ 13,599  
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 322,297 [8] 322,297  
Cost $ 2,352 [8] $ 2,352  
Fair value $ 3,340 [8] $ 2,400 3,210
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt      
Schedule of Investments [Line Items]      
Total Rate 8.00% 8.00%  
Principal $ 3,000 $ 3,000  
Cost 3,000 3,000  
Fair value $ 2,880 $ 3,000 2,960
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 15.91% [6],[16] 12.07% [7],[29]  
Reference Rate and Spread 8.25% [6],[16] 8.25% [7],[29]  
PIK Rate [6],[16] 2.00%    
Principal $ 7,167 [6],[16] $ 7,088 [7],[29]  
Cost 7,031 [6],[16] 6,986 [7],[29]  
Fair value 6,581 [6],[16] $ 6,144 [7],[29]  
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)      
Schedule of Investments [Line Items]      
Units (as a percent) [11],[12],[32]   20.00%  
Cost [11],[12],[32]   $ 19,000  
Fair value   $ 11,758 [11],[12],[32] 14,387
Diluted, percentage (as a percent) [11],[12]   20.00%  
Profits, percentage (as a percent) [11],[12]   21.75%  
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)      
Schedule of Investments [Line Items]      
Cost [8],[9],[10] 20,200    
Fair value $ 13,490 [8],[9],[10] $ 11,758  
Diluted, percentage (as a percent) [9],[10] 20.00%    
Profits, percentage (as a percent) [9],[10] 21.75%    
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 14,400    
Cost $ 14,400    
Fair value 14,400 0  
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [28] 0    
Cost [28] (35)    
Fair value $ (35) [28] 0  
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Principal $ 37,264    
Cost 36,934    
Fair value $ 36,934 $ 0  
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31],[60]   10.17%  
Reference Rate and Spread 5.75% [13],[16],[28] 5.75% [14],[29],[31],[60]  
Principal $ 0 [13],[16],[28] $ 698 [14],[29],[31],[60]  
Cost (20) [13],[16],[28] 670 [14],[29],[31],[60]  
Fair value $ 0 [13],[16],[28] $ 698 [14],[29],[31],[60]  
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.96% [13],[16] 10.17% [14],[29],[31]  
Reference Rate and Spread 5.50% [13],[16] 5.75% [14],[29],[31]  
Principal $ 9,399 [13],[16] $ 14,499 [14],[29],[31]  
Cost 9,294 [13],[16] 14,304 [14],[29],[31]  
Fair value $ 9,399 [13],[16] $ 14,499 [14],[29],[31]  
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 10.96%    
Reference Rate and Spread [13],[16] 5.50%    
Principal [13],[16] $ 4,953    
Cost [13],[16] 4,899    
Fair value [13],[16] $ 4,953    
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.36% [13],[16] 10.48% [14],[31]  
Reference Rate and Spread 5.75% [13],[16] 5.75% [14],[31]  
Principal $ 6,656 [13],[16] $ 7,125 [14],[31]  
Cost 6,544 [13],[16] 6,968 [14],[31]  
Fair value $ 5,325 [13],[16] 6,092 [14],[31]  
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [16] 16.59%    
Reference Rate and Spread [16] 9.00%    
PIK Rate [16] 2.00%    
Principal [16] $ 826    
Cost [16] 816    
Fair value $ 816 [16] 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [16] 16.59%    
Reference Rate and Spread [16] 9.00%    
PIK Rate [16] 2.00%    
Principal [16] $ 711    
Cost [16] 697    
Fair value $ 697 [16] 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [16] 15.59%    
Reference Rate and Spread [16] 8.00%    
PIK Rate [16] 2.00%    
Principal [16] $ 4,362    
Cost [16] 3,430    
Fair value $ 3,430 [16] 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [16] 17.59%    
Reference Rate and Spread [16] 10.00%    
PIK Rate [16] 2.00%    
Principal [16] $ 4,362    
Cost [16] 3,430    
Fair value $ 3,430 [16] 0  
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [26] 193,307    
Cost [26] $ 2,091    
Fair value $ 2,091 [26] $ 0  
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 849    
Cost [6] $ 1,166    
Fair value [6] $ 1,110    
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[61] 12.41%    
Reference Rate and Spread [6],[16],[61] 7.00%    
Principal [6],[16],[61] $ 1,581    
Cost [6],[16],[61] 1,500    
Fair value [6],[16],[61] $ 1,571    
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.45%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 20,768    
Cost [6],[16] 20,217    
Fair value [6],[16] $ 20,637    
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.25% [6],[16] 13.98% [7],[31]  
Reference Rate and Spread 7.75% [6],[16] 7.75% [7],[31]  
PIK Rate 1.00% [6],[16] 1.50% [7],[31]  
Principal $ 18,645 [6],[16] $ 18,515 [7],[31]  
Cost 18,600 [6],[16] 18,384 [7],[31]  
Fair value $ 17,334 [6],[16] 17,464 [7],[31]  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 18,006,407    
Cost [6] $ 18,300    
Fair value $ 17,690 [6] $ 0  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [7]   1,558,333  
Cost [7]   $ 1,558  
Fair value [7]   $ 0  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1      
Schedule of Investments [Line Items]      
Total Rate [7]   6.00%  
PIK Rate [7]   6.00%  
Cost [7]   $ 3,235  
Fair value [7]   0  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2      
Schedule of Investments [Line Items]      
Cost [7]   0  
Fair value [7]   $ 0  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29]   14.42%  
Reference Rate and Spread [7],[29]   10.00%  
PIK Rate [7],[29]   14.42%  
Principal [7],[29]   $ 806  
Cost [7],[29]   769  
Fair value [7],[29]   $ 769  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31],[62]   13.00%  
Reference Rate and Spread [7],[31],[62]   5.50%  
PIK Rate [7],[31],[62]   13.00%  
Principal [7],[31],[62]   $ 7,027  
Cost [7],[31],[62]   7,027  
Fair value [7],[31],[62]   $ 7,027  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [7],[33]   6.00%  
PIK Rate [7],[33]   6.00%  
Principal [7],[33]   $ 18,428  
Cost [7],[33]   17,664  
Fair value [7],[33]   $ 7,633  
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [7],[30],[63]   242,914  
Cost [7],[30],[63]   $ 0  
Fair value [7],[30],[63]   $ 0  
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 900 [6],[41] 900 [7],[42]  
Cost $ 900 [6],[41] $ 900 [7],[42]  
Fair value $ 690 [6],[41] $ 600 [7],[42]  
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 144 [6],[8],[41] 144 [7],[32],[42]  
Total Rate 10.00% [6],[8],[41] 10.00% [7],[32],[42]  
PIK Rate 10.00% [6],[8],[41] 10.00% [7],[32],[42]  
Cost $ 138 [6],[8],[41] $ 129 [7],[32],[42]  
Fair value $ 178 [6],[8],[41] $ 145 [7],[32],[42]  
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 80 [6],[8],[41] 80 [7],[32],[42]  
Total Rate 20.00% [6],[8],[41] 20.00% [7],[32],[42]  
PIK Rate 20.00% [6],[8],[41] 20.00% [7],[32],[42]  
Cost $ 102 [6],[8],[41] $ 92 [7],[32],[42]  
Fair value $ 120 [6],[8],[41] $ 93 [7],[32],[42]  
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.22% [6],[16],[64] 11.50% [7],[31]  
Reference Rate and Spread 6.75% [6],[16],[64] 6.75% [7],[31]  
Principal $ 1,390 [6],[16],[64] $ 463 [7],[31]  
Cost 1,367 [6],[16],[64] 430 [7],[31]  
Fair value $ 1,390 [6],[16],[64] $ 463 [7],[31]  
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.22% [6],[16] 11.50% [7],[31]  
Reference Rate and Spread 6.75% [6],[16] 6.75% [7],[31]  
Principal $ 19,044 [6],[16] $ 19,239 [7],[31]  
Cost 18,842 [6],[16] 18,956 [7],[31]  
Fair value $ 19,044 [6],[16] 19,239 [7],[31]  
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 80,000    
Cost $ 4,000    
Fair value $ 4,000 0  
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Principal $ 17,550    
Cost 17,403    
Fair value $ 17,403 $ 0  
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.21%    
Reference Rate and Spread 5.75% [6],[16] 5.50% [7],[30],[31]  
Principal $ 1,504 [6],[16] $ 0 [7],[30],[31]  
Cost 1,480 [6],[16] (19) [7],[30],[31]  
Fair value $ 1,504 [6],[16] $ (19) [7],[30],[31]  
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.21% [6],[16] 10.23% [7],[31]  
Reference Rate and Spread 5.75% [6],[16] 5.50% [7],[31]  
Principal $ 7,752 [6],[16] $ 8,593 [7],[31]  
Cost 7,663 [6],[16] 8,461 [7],[31]  
Fair value $ 7,752 [6],[16] 8,593 [7],[31]  
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 131,100    
Cost [6],[16] $ 656    
Fair value [6],[16] $ 656    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.25%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (70)    
Fair value [6],[16],[28] $ (70)    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.25%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (57)    
Fair value [6],[16],[28] $ (57)    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.65%    
Reference Rate and Spread [6],[16] 6.25%    
Principal [6],[16] $ 14,406    
Cost [6],[16] 14,009    
Fair value [6],[16] $ 14,258    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 131,569    
Cost [6],[16] $ 417    
Fair value [6],[16] $ 240    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[65] 13.53%    
Reference Rate and Spread [6],[16],[65] 8.00%    
Principal [6],[16],[65] $ 790    
Cost [6],[16],[65] 770    
Fair value [6],[16],[65] $ 776    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.55%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 7,308    
Cost [6],[16] 7,146    
Fair value [6],[16] $ 7,177    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.55%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 2,940    
Cost [6],[16] 2,879    
Fair value [6],[16] $ 2,887    
Investment, Identifier [Axis]: Integral Energy Services, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [6] 9,968    
Cost [6] $ 1,356    
Fair value $ 160 [6] 1,280  
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 3,188    
Total Rate [6] 10.00%    
PIK Rate [6] 10.00%    
Cost [6] $ 227    
Fair value $ 300 [6] 0  
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.16%    
Reference Rate and Spread [6],[16] 7.50%    
Principal [6],[16] $ 14,485    
Cost [6],[16] 14,323    
Fair value $ 13,891 [6],[16] $ 15,769  
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 2,143 [6] 2,143 [7]  
Cost $ 0 [6] $ 0 [7]  
Fair value $ 0 [6] $ 0 [7]  
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.48% [6],[38],[66] 14.22% [7],[67]  
Reference Rate and Spread 10.00% [6],[38],[66] 10.00% [7],[67]  
Principal $ 1,835 [6],[38],[66] $ 1,682 [7],[67]  
Cost 1,835 [6],[38],[66] 1,682 [7],[67]  
Fair value $ 1,781 [6],[38],[66] $ 1,682 [7],[67]  
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.46% [6],[16],[34],[38] 12.07% [7],[31],[33]  
Reference Rate and Spread 7.00% [6],[16],[34],[38] 7.00% [7],[31],[33]  
PIK Rate 12.46% [6],[16],[34],[38] 1.00% [7],[31],[33]  
Principal $ 7,313 [6],[16],[34],[38] $ 7,313 [7],[31],[33]  
Cost 7,237 [6],[16],[34],[38] 7,237 [7],[31],[33]  
Fair value $ 431 [6],[16],[34],[38] $ 1,082 [7],[31],[33]  
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.47% [13],[16] 10.38% [14],[31]  
Reference Rate and Spread 6.00% [13],[16] 6.00% [14],[31]  
Principal $ 20,201 [13],[16] $ 20,467 [14],[31]  
Cost 20,172 [13],[16] 20,418 [14],[31]  
Fair value $ 19,570 [13],[16] $ 15,811 [14],[31]  
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [6],[16] 10.14% [7],[31]  
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[31]  
Principal $ 519 [6],[16] $ 622 [7],[31]  
Cost 516 [6],[16] 618 [7],[31]  
Fair value $ 509 [6],[16] $ 622 [7],[31]  
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [6],[16] 10.17% [7],[31]  
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[31]  
Principal $ 16,812 [6],[16] $ 16,889 [7],[31]  
Cost 16,747 [6],[16] 16,784 [7],[31]  
Fair value $ 16,515 [6],[16] $ 16,889 [7],[31]  
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 203,016 179,778  
Cost $ 2,756 $ 1,798  
Fair value $ 2,680 $ 1,798 1,798
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.50% 12.50%  
Principal $ 4,514 $ 4,534  
Cost 4,487 4,500  
Fair value $ 4,487 $ 4,500 4,557
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.50% 12.50%  
Principal $ 2,940 $ 3,154  
Cost 2,922 3,130  
Fair value $ 2,922 $ 3,130 3,170
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 13.50% 12.50%  
Principal $ 8,944 $ 8,944  
Cost 8,944 8,944  
Fair value $ 8,944 $ 8,944 8,944
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 13.50% 12.50%  
Principal $ 19,624 $ 19,712  
Cost 19,503 19,559  
Fair value $ 19,503 19,559 19,805
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate 13.50%    
Principal $ 10,562    
Cost 10,273    
Fair value $ 10,273 $ 0  
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [13] 186,322    
Cost [13] $ 0    
Fair value [13] $ 0    
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.04% [13],[16] 9.93% [14],[31],[33]  
Reference Rate and Spread 5.50% [13],[16] 7.75% [14],[31],[33]  
PIK Rate [13],[16] 8.54%    
Principal $ 2,615 [13],[16] $ 5,053 [14],[31],[33]  
Cost 2,374 [13],[16] 5,038 [14],[31],[33]  
Fair value $ 2,301 [13],[16] $ 1,537 [14],[31],[33]  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,684,211 [6] 1,684,211 [7]  
Cost $ 1,684 [6] $ 1,684 [7]  
Fair value $ 1,710 [6] $ 2,840 [7]  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[68] 11.64%    
Reference Rate and Spread 6.00% [6],[16],[68] 6.00% [7],[30],[31]  
Principal $ 3,137 [6],[16],[68] $ 0 [7],[30],[31]  
Cost 3,036 [6],[16],[68] (135) [7],[30],[31]  
Fair value $ 3,137 [6],[16],[68] $ (135) [7],[30],[31]  
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.61% [6],[16] 10.73% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[31]  
Principal $ 36,000 [6],[16] $ 36,947 [7],[31]  
Cost 35,562 [6],[16] 36,358 [7],[31]  
Fair value $ 36,000 [6],[16] $ 36,947 [7],[31]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 2,826,667 [6] 2,826,667 [7],[32]  
Total Rate [7],[32]   12.00%  
PIK Rate [7],[32]   12.00%  
Cost $ 110 [6] $ 123 [7],[32]  
Fair value $ 1,090 [6] $ 623 [7],[32]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.46% [6],[16],[69] 12.23% [7],[31]  
Reference Rate and Spread 7.00% [6],[16],[69] 7.50% [7],[31]  
Principal $ 835 [6],[16],[69] $ 500 [7],[31]  
Cost 823 [6],[16],[69] 483 [7],[31]  
Fair value $ 835 [6],[16],[69] $ 500 [7],[31]  
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.46% [6],[16] 12.23% [7],[31]  
Reference Rate and Spread 7.00% [6],[16] 7.50% [7],[31]  
Principal $ 1,974 [6],[16] $ 2,079 [7],[31]  
Cost 1,974 [6],[16] 2,079 [7],[31]  
Fair value $ 1,974 [6],[16] $ 2,079 [7],[31]  
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 627 [8] 627 [32]  
Cost $ 811 [8] $ 811 [32]  
Fair value $ 12,420 [8] 14,970 [32] 12,420
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.25%    
Reference Rate and Spread 6.75%    
Fair value $ 1,998 $ 2,450  
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.75% [28],[38] 6.75% [30]  
Principal $ 0 [28],[38] $ 0 [30]  
Cost 0 [28],[38] 0 [30]  
Fair value $ 0 [28],[38] $ 0 [30] 0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.25% [16],[38] 13.75% [31]  
Reference Rate and Spread 6.75% [16],[38] 6.75% [31]  
Principal $ 1,998 [16],[38] $ 2,450 [31]  
Cost 1,998 [16],[38] 2,444 [31]  
Fair value $ 1,998 [16],[38] $ 2,450 [31] 2,550
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 472,579 [13] 472,579 [14]  
Cost $ 4,429 [13],[34] $ 4,429 [14]  
Fair value $ 0 [13],[34] $ 0 [14]  
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 23.63% [13],[16],[34] 18.00% [14]  
Reference Rate and Spread [13],[16],[34] 18.00%    
PIK Rate [13],[16],[34] 23.63%    
Principal $ 2,431 [13],[16],[34] $ 2,297 [14]  
Cost 2,431 [13],[16],[34] 2,297 [14]  
Fair value $ 2,074 [13],[16],[34] $ 2,297 [14]  
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 21.63% [13],[16],[34] 19.75% [14],[33]  
Reference Rate and Spread [13],[16],[34] 16.00%    
PIK Rate 21.63% [13],[16],[34] 19.75% [14],[33]  
Principal $ 2,057 [13],[16],[34] $ 4,034 [14],[33]  
Cost 2,038 [13],[16],[34] 3,997 [14],[33]  
Fair value $ 143 [13],[16],[34] $ 504 [14],[33]  
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [13],[16],[34] 21.63%    
Reference Rate and Spread [13],[16],[34] 16.00%    
PIK Rate [13],[16],[34] 21.63%    
Principal [13],[16],[34] $ 1,978    
Cost [13],[16],[34] 1,959    
Fair value [13],[16],[34] $ 137    
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,310 3,150 [32]  
Cost $ 3,635 $ 3,150 [32]  
Fair value $ 9,620 $ 5,540 [32] 3,150
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
Reference Rate and Spread [30],[31]   11.50%  
Principal $ 0 [28] $ 0 [30],[31]  
Cost (18) [28] (14) [30],[31]  
Fair value $ 0 [28] $ 0 [30],[31] (18)
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.00% 15.63% [31]  
Reference Rate and Spread [31]   11.50%  
Principal $ 24,207 $ 9,999 [31]  
Cost 24,066 9,920 [31]  
Fair value $ 24,207 $ 9,999 [31] 11,362
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 107,406 [8] 107,406 [32]  
Cost $ 10,741 [8] $ 10,741 [32]  
Fair value $ 10,741 [8] $ 10,741 [32] 0
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 25,650 $ 25,650  
Cost 25,483 25,432  
Fair value $ 25,483 $ 25,432 0
Investment, Identifier [Axis]: KBK Industries, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 325 [8] 325 [32]  
Cost $ 783 [8] $ 783 [32]  
Fair value $ 22,770 [8] 15,570 [32] 13,620
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 9.00%    
Principal $ 4,700    
Cost 4,662    
Fair value $ 4,700 $ 0  
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 14.75% [6],[16] 12.00% [7],[31]  
Reference Rate and Spread 9.25% [6],[16] 7.25% [7],[31]  
Principal $ 1,034 [6],[16] $ 1,064 [7],[31]  
Cost 1,002 [6],[16] 1,019 [7],[31]  
Fair value $ 943 [6],[16] $ 995 [7],[31]  
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.75% [6],[16] 12.00% [7],[31]  
Reference Rate and Spread 9.25% [6],[16] 7.25% [7],[31]  
Principal $ 7,448 [6],[16] $ 7,505 [7],[31]  
Cost 7,365 [6],[16] 7,391 [7],[31]  
Fair value $ 6,782 [6],[16] $ 7,022 [7],[31]  
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 800 [41] 800 [32],[42]  
Cost $ 992 [41] $ 992 [32],[42]  
Fair value $ 2,730 [41] 2,850 [32],[42]  
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units 1      
Schedule of Investments [Line Items]      
Fair value   $ 2,850 2,460
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 581 581  
Cost $ 12,240 $ 12,240  
Fair value $ 9,690 $ 7,220 12,310
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 11.50%  
Principal $ 19,799 $ 20,415  
Cost 19,774 20,374  
Fair value $ 19,774 $ 20,374 20,324
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 9.00% 9.00%  
Principal $ 3,840 $ 3,879  
Cost 3,805 3,842  
Fair value $ 3,805 $ 3,842 3,876
Investment, Identifier [Axis]: Kore Wireless Group Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29]   10.08%  
Reference Rate and Spread [14],[29]   5.50%  
Principal [14],[29]   $ 11,326  
Cost [14],[29]   11,280  
Fair value [14],[29]   10,930  
Investment, Identifier [Axis]: L.F. Manufacturing Holdings, LLC, Member Units      
Schedule of Investments [Line Items]      
Fair value   $ 0 2,560
Investment, Identifier [Axis]: L.F. Manufacturing Holdings, LLC, Preferred Member Units (non-voting)      
Schedule of Investments [Line Items]      
PIK Rate   14.00%  
Fair value   $ 0 107
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P., LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 2.27% [9],[10],[45] 2.27% [11],[12],[32],[46]  
Cost $ 1,746 [9],[10],[45] $ 1,746 [11],[12],[32],[46]  
Fair value $ 2,988 [9],[10],[45] $ 3,197 [11],[12],[32],[46]  
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.71% [6],[16] 11.21% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16] 7.25% [7],[29],[31]  
Principal $ 7,960 [6],[16] $ 8,106 [7],[29],[31]  
Cost 7,940 [6],[16] 8,087 [7],[29],[31]  
Fair value $ 7,960 [6],[16] $ 8,047 [7],[29],[31]  
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.71% [6],[16] 11.67% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16] 7.25% [7],[29],[31]  
Principal $ 5,246 [6],[16] $ 9,197 [7],[29],[31]  
Cost 5,231 [6],[16] 9,160 [7],[29],[31]  
Fair value $ 5,246 [6],[16] $ 9,130 [7],[29],[31]  
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.71% [6],[16] 11.67% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16] 7.25% [7],[29],[31]  
Principal $ 2,803 [6],[16] $ 10,827 [7],[29],[31]  
Cost 2,796 [6],[16] 10,733 [7],[29],[31]  
Fair value $ 2,803 [6],[16] $ 10,749 [7],[29],[31]  
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.71%    
Reference Rate and Spread [6],[16] 7.25%    
Principal [6],[16] $ 1,056    
Cost [6],[16] 1,053    
Fair value [6],[16] $ 1,056    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.71%    
Reference Rate and Spread [6],[16] 7.25%    
Principal [6],[16] $ 10,694    
Cost [6],[16] 10,658    
Fair value [6],[16] $ 10,694    
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 15.54% [6],[16] 12.74% [7],[31]  
Reference Rate and Spread 9.00% [6],[16] 9.00% [7],[31]  
PIK Rate [6],[16] 1.00%    
Principal $ 4,428 [6],[16] $ 4,444 [7],[31]  
Cost 4,338 [6],[16] 4,370 [7],[31]  
Fair value $ 3,979 [6],[16] $ 4,350 [7],[31]  
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.62% [13] 9.73% [14]  
Reference Rate and Spread 5.00% [13] 5.00% [14]  
Principal $ 14,325 [13] $ 14,475 [14]  
Cost 14,237 [13] 14,349 [14]  
Fair value $ 13,895 [13] $ 13,968 [14]  
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.25% [6],[16] 10.13% [7],[31]  
Reference Rate and Spread 4.75% [6],[16] 5.75% [7],[31]  
Principal $ 23,921 [6],[16] $ 19,662 [7],[31]  
Cost 23,082 [6],[16] 19,033 [7],[31]  
Fair value $ 18,778 [6],[16] $ 16,221 [7],[31]  
Investment, Identifier [Axis]: Looking Glass Investments, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 3 [9],[10] 3 [11],[12]  
Cost $ 125 [9],[10] $ 125 [11],[12]  
Fair value $ 25 [9],[10] $ 25 [11],[12]  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.46% [13],[16] 10.42% [14],[29],[31]  
Reference Rate and Spread 6.00% [13],[16] 6.00% [14],[29],[31]  
Principal $ 2,803 [13],[16] $ 8,338 [14],[29],[31]  
Cost 2,785 [13],[16] 8,267 [14],[29],[31]  
Fair value $ 2,803 [13],[16] $ 8,338 [14],[29],[31]  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.46% [13],[16] 10.42% [14],[29],[31]  
Reference Rate and Spread 6.00% [13],[16] 6.00% [14],[29],[31]  
Principal $ 3,925 [13],[16] $ 7,876 [14],[29],[31]  
Cost 3,899 [13],[16] 7,784 [14],[29],[31]  
Fair value $ 3,925 [13],[16] $ 7,876 [14],[29],[31]  
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 11.46%    
Reference Rate and Spread [13],[16] 6.00%    
Principal [13],[16] $ 3,464    
Cost [13],[16] 3,440    
Fair value [13],[16] $ 3,464    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 11.46%    
Reference Rate and Spread [13],[16] 6.00%    
Principal [13],[16] $ 7,796    
Cost [13],[16] 7,727    
Fair value [13],[16] $ 7,796    
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 66,000 66,000  
Cost $ 4,400 $ 4,400  
Fair value $ 330 $ 0 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 4,000 4,000  
Cost $ 6,000 $ 6,000  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00% [38] 13.00%  
Principal $ 5,400 [38] $ 6,156  
Cost 5,400 [38] 6,156  
Fair value $ 5,022 [38] 4,548 5,934
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests      
Schedule of Investments [Line Items]      
Fair value   14,833 2,581
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value   $ 0 63,151
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 14.51% [8],[9],[10],[45] 14.51% [11],[12],[32],[46]  
Cost $ 14,250 [8],[9],[10],[45] $ 14,250 [11],[12],[32],[46]  
Fair value $ 14,527 [8],[9],[10],[45] 14,833 [11],[12],[32],[46]  
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 5.00%    
Principal $ 0 [9],[10],[28] 0 [11],[12],[30]  
Cost 0 [9],[10],[28] 0 [11],[12],[30]  
Fair value $ 0 [9],[10],[28] 0 [11],[12],[30]  
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt 1      
Schedule of Investments [Line Items]      
Fair value   0 0
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) [9],[10],[45] 13.37%    
Cost [9],[10],[45] $ 1,561    
Fair value $ 1,561 [9],[10],[45] 0  
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [9],[10],[16] 8.88%    
Reference Rate and Spread [9],[10],[16] 3.50%    
Principal [9],[10],[16] $ 23,500    
Cost [9],[10],[16] 23,367    
Fair value $ 23,367 [9],[10],[16] $ 0  
Investment, Identifier [Axis]: MSC Adviser I, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32],[70]   1  
Units (as a percent) [8],[71] 100.00%    
Cost $ 29,500 [8],[71] $ 29,500 [32],[70]  
Fair value $ 174,063 [8],[71] $ 122,930 [32],[70] 140,400
Investment, Identifier [Axis]: MSC Income Fund, Inc., Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,290,267 [8],[9],[10] 94,697 [11],[12],[32]  
Cost $ 10,000 [8],[9],[10] $ 750 [11],[12],[32]  
Fair value $ 10,025 [8],[9],[10] $ 753 [11],[12],[32] 0
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[31],[72]   11.79%  
Reference Rate and Spread 6.75% [6],[16],[28] 7.25% [7],[31],[72]  
Principal $ 0 [6],[16],[28] $ 3,103 [7],[31],[72]  
Cost (28) [6],[16],[28] 3,063 [7],[31],[72]  
Fair value $ 0 [6],[16],[28] $ 3,083 [7],[31],[72]  
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.28% [6],[16] 11.09% [7],[31]  
Reference Rate and Spread 6.75% [6],[16] 7.25% [7],[31]  
Principal $ 15,049 [6],[16] $ 15,324 [7],[31]  
Cost 14,914 [6],[16] 15,122 [7],[31]  
Fair value 15,049 [6],[16] $ 15,224 [7],[31]  
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares)   743,921  
Cost   $ 16,642  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [31]   15.13%  
Reference Rate and Spread 11.00% 11.00% [31]  
Principal [31]   $ 6,275  
Cost [31]   6,253  
Fair value $ 0 $ 6,090 [31] 3,400
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [33]   12.00%  
Reference Rate and Spread 11.00%    
PIK Rate [33]   12.00%  
Principal [33]   $ 26,079  
Cost [33]   25,952  
Fair value $ 0 $ 1,610 [33] 8,936
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares)   1,537,219  
Cost   $ 1,537  
Fair value   $ 1,537 0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [32]   5,915,585  
Total Rate [32]   8.00%  
PIK Rate [32]   8.00%  
Cost [32]   $ 6,010  
Fair value   6,010 [32] 0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Principal [30]   0  
Cost [30]   0  
Fair value   $ 0 [30] 0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate   12.75%  
Principal   $ 23,802  
Cost   23,576  
Fair value   23,576 0
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,537,219    
Cost $ 1,537    
Fair value $ 1,500 1,537  
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [8] 5,915,585    
Total Rate [8] 8.00%    
PIK Rate [8] 8.00%    
Cost [8] $ 6,035    
Fair value $ 6,035 [8] 6,010  
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.75%    
Principal [28] $ 0    
Cost [28] 0    
Fair value $ 0 [28] 0  
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.75%    
Principal $ 23,802    
Cost 23,623    
Fair value $ 23,623 $ 23,576  
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.25% [6],[16],[28] 6.25% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (51) [6],[16],[28] (63) [7],[29],[30],[31]  
Fair value $ (51) [6],[16],[28] $ (63) [7],[29],[30],[31]  
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.46% [6],[16] 9.86% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.25% [7],[29],[31]  
Principal $ 22,168 [6],[16] $ 26,075 [7],[29],[31]  
Cost 21,855 [6],[16] 25,619 [7],[29],[31]  
Fair value $ 22,168 [6],[16] $ 25,181 [7],[29],[31]  
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.52% [6],[16] 10.66% [7],[31]  
Reference Rate and Spread 7.00% [6],[16] 6.25% [7],[31]  
Principal $ 18,152 [6],[16] $ 18,769 [7],[31]  
Cost 17,883 [6],[16] 18,562 [7],[31]  
Fair value $ 17,524 [6],[16] $ 18,338 [7],[31]  
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 459,657    
Cost [6] $ 460    
Fair value [6] $ 460    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.25%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (42)    
Fair value [6],[16],[28] $ (42)    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.25%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (16)    
Fair value [6],[16],[28] $ (16)    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 10.64%    
Reference Rate and Spread [6],[16] 5.25%    
Principal [6],[16] $ 4,941    
Cost [6],[16] 4,825    
Fair value [6],[16] $ 4,825    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.64%    
Reference Rate and Spread [6],[16] 7.25%    
Principal [6],[16] $ 4,941    
Cost [6],[16] 4,820    
Fair value [6],[16] $ 4,820    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 44,445,814 [6],[9],[15] 44,445,814 [7],[11],[17]  
Cost $ 889 [6],[9],[15] $ 889 [7],[11],[17]  
Fair value $ 678 [6],[9],[15] $ 889 [7],[11],[17]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[9],[15] 14.00%    
Reference Rate and Spread [7],[11],[17],[30],[31]   7.00%  
PIK Rate [6],[9],[15] 4.00%    
Principal $ 3,889 [6],[9],[15] $ 0 [7],[11],[17],[30],[31]  
Cost 3,839 [6],[9],[15] (64) [7],[11],[17],[30],[31]  
Fair value $ 3,938 [6],[9],[15] $ (64) [7],[11],[17],[30],[31]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.00% [6],[9],[15] 11.73% [7],[11],[17],[31]  
Reference Rate and Spread [7],[11],[17],[31]   7.00%  
PIK Rate [6],[9],[15] 4.00%    
Principal $ 10,211 [6],[9],[15] $ 10,107 [7],[11],[17],[31]  
Cost 10,068 [6],[9],[15] 9,923 [7],[11],[17],[31]  
Fair value $ 11,164 [6],[9],[15] $ 10,714 [7],[11],[17],[31]  
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 14.00% [6],[9],[15] 11.73% [7],[11],[17],[31]  
Reference Rate and Spread [7],[11],[17],[31]   7.00%  
PIK Rate [6],[9],[15] 4.00%    
Principal $ 17,213 [6],[9],[15] $ 17,038 [7],[11],[17],[31]  
Cost 16,987 [6],[9],[15] 16,746 [7],[11],[17],[31]  
Fair value $ 17,213 [6],[9],[15] $ 17,038 [7],[11],[17],[31]  
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 5,873 [8] 5,873 [32]  
Cost $ 2,720 [8] $ 2,720 [32]  
Fair value 26,390 [8] 22,830 [32] 8,840
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Principal 0 [28] 0 [30]  
Cost 0 [28] 0 [30]  
Fair value $ 0 [28] $ 0 [30] 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% 10.00%  
Principal $ 5,746 $ 5,746  
Cost 5,746 5,746  
Fair value $ 5,746 $ 5,746 6,378
Investment, Identifier [Axis]: NAPCO Precast, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 2,955 2,955  
Cost $ 2,975 $ 2,975  
Fair value 11,730 11,830 13,560
Investment, Identifier [Axis]: NAPCO Precast, LLC, Members Units      
Schedule of Investments [Line Items]      
Fair value 11,730 $ 11,830  
Investment, Identifier [Axis]: NBG Acquisition Inc, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[31]   9.67%  
Reference Rate and Spread [14],[31]   5.50%  
Principal 3,849 [13],[34] $ 3,849 [14],[31]  
Cost 3,834 [13],[34] 3,834 [14],[31]  
Fair value $ 115 [13],[34] $ 1,251 [14],[31]  
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [32]   65,962  
Cost [32]   $ 3,717  
Fair value [32]   4,790  
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 65,962    
Cost $ 114    
Fair value 53 4,615 6,200
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value 1,466 4,615  
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2      
Schedule of Investments [Line Items]      
Cost [8] 3,603    
Fair value 1,466 [8] 175 240
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2.1      
Schedule of Investments [Line Items]      
Fair value $ 53 $ 175  
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 2,080 $ 2,080  
Cost 2,080 2,080  
Fair value $ 2,080 $ 2,080 2,080
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[31]   9.50%  
Reference Rate and Spread [14],[31]   6.25%  
PIK Rate [14],[31]   1.00%  
Principal [14],[31]   $ 4,358  
Cost [14],[31]   4,358  
Fair value [14],[31]   $ 4,228  
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31],[73]   10.85%  
Reference Rate and Spread [7],[29],[31],[73]   8.00%  
Principal [7],[29],[31],[73]   $ 3,941  
Cost [7],[29],[31],[73]   3,797  
Fair value [7],[29],[31],[73]   $ 3,720  
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   12.56%  
Reference Rate and Spread [7],[29],[31]   8.00%  
Principal [7],[29],[31]   $ 39,851  
Cost [7],[29],[31]   39,094  
Fair value [7],[29],[31]   $ 37,616  
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [7]   20.00%  
PIK Rate [7]   20.00%  
Principal [7]   $ 6,509  
Cost [7]   6,194  
Fair value [7]   $ 6,194  
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, , Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate   12.00%  
Fair value   $ 10,500 10,412
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 6,987 [8] 6,987  
Cost $ 6,987 [8] $ 6,987  
Fair value $ 15,020 [8] $ 7,700 7,700
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.00% [16],[28] 7.00% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost 0 [16],[28] 0 [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 25,794 $ 20,094  
Cost 25,673 19,972  
Fair value $ 25,794 $ 20,094 4,829
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 10,500 $ 10,500  
Cost 10,456 10,434  
Fair value $ 10,500 $ 10,500  
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 103,144,186 [8] 103,144,186 [32]  
Cost $ 8,213 [8] $ 8,213 [32]  
Fair value $ 6,350 [8] 1,110 [32] 2,690
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Principal $ 0 [28] 0 [30]  
Cost 0 [28] 0 [30]  
Fair value $ 0 [28] $ 0 [30] 800
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 10.00% 11.00%  
Principal $ 9,811 $ 11,465  
Cost 9,751 11,335  
Fair value $ 9,751 $ 8,477 13,245
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.00% [6],[16],[28] 6.25% [7],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30],[31]  
Cost (9) [6],[16],[28] (1) [7],[30],[31]  
Fair value $ (8) [6],[16],[28] $ 0 [7],[30],[31]  
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.00% [6],[16],[28] 6.25% [7],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30],[31]  
Cost 0 [6],[16],[28] (38) [7],[30],[31]  
Fair value $ 0 [6],[16],[28] $ (38) [7],[30],[31]  
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.54% [6],[16] 9.99% [7],[31]  
Reference Rate and Spread 7.00% [6],[16] 6.25% [7],[31]  
Principal $ 20,467 [6],[16] $ 21,666 [7],[31]  
Cost 20,255 [6],[16] 21,418 [7],[31]  
Fair value $ 20,467 [6],[16] $ 21,666 [7],[31]  
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.52%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 7,222    
Cost [6],[16] 7,089    
Fair value [6],[16] $ 7,222    
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,062 2,062  
Cost $ 2,062 $ 2,062  
Fair value 5,150 5,150  
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value $ 9,240 $ 8,040 13,500
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 406 406  
Cost $ 10,200 $ 10,200  
Fair value 9,240 8,040  
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1      
Schedule of Investments [Line Items]      
Fair value $ 5,150 $ 5,150 0
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.98% [16] 10.63% [31]  
Reference Rate and Spread 6.50% [16] 6.50% [31]  
Principal $ 3,600 [16] $ 4,400 [31]  
Cost 3,600 [16] 4,399 [31]  
Fair value $ 3,600 [16] $ 4,399 [31] 1,720
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 18,440 $ 18,440  
Cost 18,426 18,414  
Fair value $ 18,426 $ 18,414 17,240
Investment, Identifier [Axis]: OMi Topco, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 900 [8] 900 [32]  
Cost $ 1,080 [8] $ 1,080 [32]  
Fair value $ 36,380 [8] $ 22,810 [32] 20,210
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 12,750 $ 15,750  
Cost 12,682 15,634  
Fair value $ 12,750 $ 15,750 18,000
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   10.64%  
Reference Rate and Spread [7],[31]   6.25%  
Principal [7],[31]   $ 13,930  
Cost [7],[31]   13,813  
Fair value [7],[31]   $ 13,094  
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Inc, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [13] 11.47%    
Reference Rate and Spread [13] 6.00%    
Principal [13] $ 17,373    
Cost [13] 16,558    
Fair value [13] $ 14,897    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 635 635  
Cost $ 830 $ 830  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 912 912  
Total Rate 7.00% 7.00%  
PIK Rate 7.00% 7.00%  
Cost $ 1,981 $ 1,981  
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [34] 12.00% [33]  
PIK Rate 12.00% [34] 12.00% [33]  
Principal $ 4,415 [34] $ 4,415 [33]  
Cost 4,415 [34] 4,415 [33]  
Fair value $ 1,493 [34] $ 2,606 [33]  
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 $ 326 $ 569 935
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [34] 12.00% [33]  
PIK Rate 12.00% [34] 12.00% [33]  
Principal $ 2,116 [34] $ 2,116 [33]  
Cost 2,116 [34] 2,116 [33]  
Fair value $ 716 [34] $ 1,249 [33]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 332 $ 580 954
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.00% [34] 12.00% [33]  
PIK Rate 12.00% [34] 12.00% [33]  
Principal $ 983 [34] $ 983 [33]  
Cost 983 [34] 983 [33]  
Fair value $ 332 [34] $ 580 [33]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3.1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 716 $ 1,249 2,055
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate 12.00% [34] 12.00% [33]  
PIK Rate 12.00% [34] 12.00% [33]  
Principal $ 964 [34] $ 964 [33]  
Cost 964 [34] 964 [33]  
Fair value $ 326 [34] $ 569 [33]  
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4.1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
PIK Rate 12.00% 12.00%  
Fair value $ 1,493 $ 2,606 4,285
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% [34] 10.00% [33]  
PIK Rate 10.00% [34] 10.00% [33]  
Principal $ 305 [34] $ 305 [33]  
Cost 305 [34] 305 [33]  
Fair value $ 305 [34] $ 305 [33] 192
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 4,699 [26] 4,699 [27]  
Cost $ 1,089 [26] $ 1,089 [27]  
Fair value $ 0 [26] $ 0 [27] 0
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,128 1,056  
Cost $ 1,128 $ 1,056  
Fair value $ 1,128 $ 1,056 1,056
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 11.00% [16],[28],[38] 11.00% [30],[31]  
Principal $ 0 [16],[28],[38] $ 0 [30],[31]  
Cost 0 [16],[28],[38] 0 [30],[31]  
Fair value $ 0 [16],[28],[38] $ 0 [30],[31] 0
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 16.48% [16] 15.13% [31]  
Reference Rate and Spread 11.00% [16] 11.00% [31]  
Principal $ 5,440 [16] $ 5,600 [31]  
Cost 5,411 [16] 5,559 [31]  
Fair value $ 5,350 [16] $ 5,559 [31] 5,547
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 10,000 [8],[41] 10,000 [32],[42]  
Cost $ 10,000 [8],[41] $ 10,000 [32],[42]  
Fair value $ 17,050 [8],[41] $ 11,750 [32],[42] 10,000
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 11.00% [16],[28] 11.00% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost 0 [16],[28] 0 [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 175
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 16.48% [16] 15.13% [31]  
Reference Rate and Spread 11.00% [16] 11.00% [31]  
Principal $ 22,040 [16] $ 23,600 [31]  
Cost 21,925 [16] 23,429 [31]  
Fair value 22,040 [16] $ 23,429 [31] 23,976
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[33]   11.50%  
Principal 4,443 [6],[34] $ 4,489 [7],[33]  
Cost 4,443 [6],[34] 4,489 [7],[33]  
Fair value 57 [6],[34] 103 [7],[33]  
Investment, Identifier [Axis]: Other, Affiliate Investments      
Schedule of Investments [Line Items]      
Fair value 0 0 0
Investment, Identifier [Axis]: Other, Control Investments      
Schedule of Investments [Line Items]      
Fair value $ 0 $ 0 0
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 2,000 2,000 [32]  
Cost $ 2,150 $ 2,150 [32]  
Fair value $ 16,980 $ 18,950 [32] 14,360
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 238,421 [41] 238,421  
Cost $ 238 [41] $ 238  
Fair value $ 368 [41] $ 238 0
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 8.75% [16],[28] 7.00% [30],[31]  
Principal $ 0 [16],[28] $ 0 [30],[31]  
Cost (7) [16],[28] (9) [30],[31]  
Fair value $ 0 [16],[28] $ 0 [30],[31] 727
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 14.23% [16] 10.25% [31]  
Reference Rate and Spread 8.75% [16] 7.00% [31]  
Principal $ 19,877 [16] $ 21,655 [31]  
Cost 19,697 [16] 21,408 [31]  
Fair value $ 19,877 [16] $ 21,655 [31] 11,655
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[9],[15],[16],[74] 12.80%    
Reference Rate and Spread 7.25% [6],[9],[15],[16],[74] 7.25% [7],[11],[17],[29],[30],[31]  
Principal $ 3,022 [6],[9],[15],[16],[74] $ 0 [7],[11],[17],[29],[30],[31]  
Cost 2,885 [6],[9],[15],[16],[74] (174) [7],[11],[17],[29],[30],[31]  
Fair value $ 2,998 [6],[9],[15],[16],[74] $ (174) [7],[11],[17],[29],[30],[31]  
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.88% [6],[9],[15],[16] 11.80% [7],[11],[17],[29],[31]  
Reference Rate and Spread 7.25% [6],[9],[15],[16] 7.25% [7],[11],[17],[29],[31]  
Principal $ 26,478 [6],[9],[15],[16] $ 28,265 [7],[11],[17],[29],[31]  
Cost 26,084 [6],[9],[15],[16] 27,749 [7],[11],[17],[29],[31]  
Fair value $ 26,263 [6],[9],[15],[16] $ 27,911 [7],[11],[17],[29],[31]  
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   10.26%  
Reference Rate and Spread 5.75% [6],[16],[28] 5.75% [7],[29],[31]  
Principal $ 0 [6],[16],[28] $ 541 [7],[29],[31]  
Cost (79) [6],[16],[28] 437 [7],[29],[31]  
Fair value $ 0 [6],[16],[28] $ 530 [7],[29],[31]  
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.24% [6],[16],[75] 9.96% [7],[29],[31],[76]  
Reference Rate and Spread 5.75% [6],[16],[75] 5.75% [7],[29],[31],[76]  
Principal $ 3,204 [6],[16],[75] $ 2,701 [7],[29],[31],[76]  
Cost 3,135 [6],[16],[75] 2,609 [7],[29],[31],[76]  
Fair value $ 3,186 [6],[16],[75] $ 2,649 [7],[29],[31],[76]  
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.25% [6],[16] 9.81% [7],[29],[31]  
Reference Rate and Spread 5.75% [6],[16] 5.75% [7],[29],[31]  
Principal $ 18,597 [6],[16] $ 18,293 [7],[29],[31]  
Cost 18,265 [6],[16] 17,852 [7],[29],[31]  
Fair value $ 18,490 [6],[16] $ 17,939 [7],[29],[31]  
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 15,061 [8] 13,800 [32]  
Cost $ 13,000 [8] $ 13,000 [32]  
Fair value $ 44,090 [8] 43,260 [32] 26,970
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 3,500 0  
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Principal $ 3,500 0 [30]  
Cost 3,497 0 [30]  
Fair value $ 3,500 0 [30] 0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1.1      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 20,000 0  
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Principal $ 20,000 0 [30]  
Cost 19,956 0 [30]  
Fair value $ 20,000 0 [30] 0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 27,681 $ 28,681  
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 27,681 $ 28,681  
Cost 27,601 28,537  
Fair value $ 27,681 28,681 32,674
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 440    
Cost $ 12,540    
Fair value $ 12,540 0  
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 8.00%    
Principal $ 460    
Cost 444    
Fair value $ 444 0  
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Principal $ 30,640    
Cost 30,339    
Fair value $ 30,339 $ 0  
Investment, Identifier [Axis]: Power System Solutions, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6] 1,234    
Cost [6],[16] $ 1,234    
Fair value [6],[16] $ 1,160    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.75%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (82)    
Fair value [6],[16],[28] $ (82)    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 6.75%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (82)    
Fair value [6],[16],[28] $ (82)    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.12%    
Reference Rate and Spread [6],[16] 6.75%    
Principal [6],[16] $ 18,418    
Cost [6],[16] 17,930    
Fair value [6],[16] $ 18,418    
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.28%    
Reference Rate and Spread [6],[16] 6.85%    
Principal [6],[16] $ 7,960    
Cost [6],[16] 7,750    
Fair value [6],[16] $ 7,960    
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.20%    
Reference Rate and Spread [6],[16] 6.85%    
Principal [6],[16] $ 760    
Cost [6],[16] 738    
Fair value [6],[16] $ 760    
Investment, Identifier [Axis]: Principle Environmental, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,037 1,037  
Cost $ 1,200 $ 1,200  
Fair value $ 510 $ 590 710
Investment, Identifier [Axis]: Principle Environmental, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 21,806 [8] 21,806 [32]  
Cost $ 5,709 [8] $ 5,709 [32]  
Fair value $ 10,750 [8] 12,420 [32] 11,160
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00%    
Principal $ 0 [28] 0 [30]  
Cost 0 [28] 0 [30]  
Fair value $ 0 [28] $ 0 [30] 1,465
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 5,897 $ 5,897  
Cost 5,829 5,806  
Fair value $ 5,829 $ 5,806 5,808
Investment, Identifier [Axis]: Project Eagle Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [7],[30],[31]   6.25%  
Principal [7],[30],[31]   $ 0  
Cost [7],[30],[31]   (18)  
Fair value [7],[30],[31]   $ (18)  
Investment, Identifier [Axis]: Project Eagle Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   10.64%  
Reference Rate and Spread [7],[31]   6.25%  
Principal [7],[31]   $ 29,475  
Cost [7],[31]   29,040  
Fair value [7],[31]   29,419  
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) [6],[16] 3,281,250    
Cost [6],[16] $ 3,281    
Fair value [6],[16] $ 3,281    
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread [6],[16],[28] 8.00%    
Principal [6],[16],[28] $ 0    
Cost [6],[16],[28] (47)    
Fair value [6],[16],[28] $ (47)    
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.70%    
Reference Rate and Spread [6],[16] 8.00%    
Principal [6],[16] $ 9,844    
Cost [6],[16] 9,610    
Fair value [6],[16] 9,610    
Investment, Identifier [Axis]: Quality Lease Service, LCC, Preferred Member Units      
Schedule of Investments [Line Items]      
Fair value   $ 0 0
Investment, Identifier [Axis]: Quality Lease Service, LCC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate   12.00%  
Fair value   $ 0 0
Investment, Identifier [Axis]: Quality Lease Service, LLC 1, Secured Debt      
Schedule of Investments [Line Items]      
Fair value $ 460 $ 525  
Investment, Identifier [Axis]: Quality Lease Service, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,000 1,000  
Cost $ 7,546 $ 7,513  
Fair value 460 525 2,148
Investment, Identifier [Axis]: Quality Lease Service, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Fair value $ 0 0  
Investment, Identifier [Axis]: Quality Lease Service, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[64] 12.22%    
Reference Rate and Spread 6.75% [6],[16],[64] 6.75% [7],[29],[30],[31]  
Principal $ 824 [6],[16],[64] $ 0 [7],[29],[30],[31]  
Cost 816 [6],[16],[64] (11) [7],[29],[30],[31]  
Fair value $ 772 [6],[16],[64] $ (11) [7],[29],[30],[31]  
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.21% [6],[16] 10.56% [7],[29],[31]  
Reference Rate and Spread 6.75% [6],[16] 6.75% [7],[29],[31]  
Principal $ 13,369 [6],[16] $ 13,369 [7],[29],[31]  
Cost 13,280 [6],[16] 13,241 [7],[29],[31]  
Fair value $ 12,512 [6],[16] $ 12,094 [7],[29],[31]  
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) [7]   2,779  
Cost [7]   $ 46  
Fair value [7]   $ 19  
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [7],[77]   327,532  
Cost [7],[77]   $ 425  
Fair value [7],[77]   $ 0  
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.21% [6],[16] 12.02% [7],[29],[31],[78]  
Reference Rate and Spread 7.75% [6],[16] 7.75% [7],[29],[31],[78]  
Principal $ 548 [6],[16] $ 1,361 [7],[29],[31],[78]  
Cost 536 [6],[16] 1,343 [7],[29],[31],[78]  
Fair value $ 534 [6],[16] $ 1,258 [7],[29],[31],[78]  
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.19% [6],[16] 11.49% [7],[29],[31]  
Reference Rate and Spread 7.75% [6],[16] 7.75% [7],[29],[31]  
Principal $ 14,323 [6],[16] $ 16,623 [7],[29],[31]  
Cost 14,260 [6],[16] 16,506 [7],[29],[31]  
Fair value $ 13,951 [6],[16] $ 15,367 [7],[29],[31]  
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 13.19%    
Reference Rate and Spread [6],[16] 7.75%    
Principal [6],[16] $ 574    
Cost [6],[16] 572    
Fair value [6],[16] $ 559    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 11.14% [13],[16] 8.84% [14],[31]  
Reference Rate and Spread 5.50% [13],[16] 5.50% [14],[31]  
Principal $ 19,704 [13],[16] $ 19,966 [14],[31]  
Cost 19,595 [13],[16] 19,745 [14],[31]  
Fair value $ 14,715 [13],[16] $ 15,116 [14],[31]  
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[79] 18.47%    
Reference Rate and Spread [6],[16],[79] 6.50%    
Principal [6],[16],[79] $ 3,167    
Cost [6],[16],[79] 3,087    
Fair value [6],[16],[79] $ 3,109    
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.88%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 40,102    
Cost [6],[16] 38,858    
Fair value [6],[16] $ 39,376    
Investment, Identifier [Axis]: River Aggregates, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,500 [41] 1,500 [42]  
Cost $ 369 [41] $ 369 [42]  
Fair value $ 3,710 [41] $ 3,620 [42] 3,280
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 11,070 11,070  
Cost $ 11,070 $ 11,070  
Fair value $ 0 14,880 11,070
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.50%    
Principal $ 0 [28] 0 [30],[31]  
Cost (26) [28] (35) [30],[31]  
Fair value $ (26) [28] $ (35) [30],[31] (44)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.50% 12.50% [31]  
Principal $ 34,110 $ 35,685 [31]  
Cost 33,909 35,404 [31]  
Fair value $ 30,798 $ 35,404 [31] 36,000
Investment, Identifier [Axis]: Rocaceia, LLC (Quality Lease and Rental Holdings, LLC), Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 250 250  
Cost $ 2,500 $ 2,500  
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Rocaceia, LLC (Quality Lease and Rental Holdings, LLC), Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [33],[40],[80]   12.00%  
Principal [33],[40],[80]   $ 30,369  
Cost [33],[40],[80]   29,865  
Fair value [33],[40],[80]   $ 0  
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[29],[31]   10.97%  
Reference Rate and Spread 6.50% [6],[16],[28] 6.50% [7],[29],[31]  
Principal $ 0 [6],[16],[28] $ 311 [7],[29],[31]  
Cost (8) [6],[16],[28] 300 [7],[29],[31]  
Fair value $ 0 [6],[16],[28] $ 311 [7],[29],[31]  
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.16% [6],[16] 10.32% [7],[29],[31]  
Reference Rate and Spread 6.50% [6],[16] 6.50% [7],[29],[31]  
Principal $ 3,376 [6],[16] $ 2,333 [7],[29],[31]  
Cost 3,328 [6],[16] 2,291 [7],[29],[31]  
Fair value $ 3,314 [6],[16] $ 2,333 [7],[29],[31]  
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 14.16% [6],[16] 10.32% [7],[29],[31]  
Reference Rate and Spread 8.50% [6],[16] 6.50% [7],[29],[31]  
Principal $ 3,376 [6],[16] $ 3,173 [7],[29],[31]  
Cost 3,328 [6],[16] 3,125 [7],[29],[31]  
Fair value $ 3,266 [6],[16] $ 3,173 [7],[29],[31]  
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.54% [6],[16] 13.02% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.25% [7],[29],[31]  
PIK Rate 2.00% [6],[16] 2.00% [7],[29],[31]  
Principal $ 5,769 [6],[16] $ 5,625 [7],[29],[31]  
Cost 5,749 [6],[16] 5,590 [7],[29],[31]  
Fair value $ 5,744 [6],[16] $ 5,037 [7],[29],[31]  
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.54% [6],[16] 13.02% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.25% [7],[29],[31]  
PIK Rate 2.00% [6],[16] 2.00% [7],[29],[31]  
Principal $ 8,121 [6],[16] $ 8,340 [7],[29],[31]  
Cost 8,059 [6],[16] 8,223 [7],[29],[31]  
Fair value $ 8,086 [6],[16] $ 7,478 [7],[29],[31]  
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 165 [8] 157 [32]  
Cost $ 1,525 [8] $ 1,218 [32]  
Fair value $ 19,170 [8] 13,650 [32] 11,570
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.25%    
Principal $ 1,125 0 [30]  
Cost 1,108 0 [30]  
Fair value $ 1,125 $ 0 [30] 2,250
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.47% [81] 9.50%  
Principal $ 54,536 [81] $ 89,786  
Cost 54,295 [81] 89,708  
Fair value $ 54,536 [81] 89,786  
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1      
Schedule of Investments [Line Items]      
Total Rate 12.47%    
Fair value $ 54,536 $ 0  
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.2      
Schedule of Investments [Line Items]      
Total Rate   9.50%  
Fair value   $ 89,786 63,600
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 9.50%    
Fair value $ 0 $ 89,786  
Investment, Identifier [Axis]: SIB Holdings, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) [7]   95,238  
Cost [7]   $ 200  
Fair value [7]   $ 146  
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   11.01%  
Reference Rate and Spread [7],[31]   6.25%  
Principal [7],[31]   $ 417  
Cost [7],[31]   408  
Fair value [7],[31]   $ 393  
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   11.01%  
Reference Rate and Spread [7],[31]   6.25%  
Principal [7],[31]   $ 1,553  
Cost [7],[31]   1,527  
Fair value [7],[31]   $ 1,433  
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   11.01%  
Reference Rate and Spread [7],[31]   6.25%  
Principal [7],[31]   $ 7,750  
Cost [7],[31]   7,626  
Fair value [7],[31]   $ 7,151  
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 638,710 [6] 638,710 [7]  
Cost $ 639 [6] $ 639 [7]  
Fair value $ 500 [6] $ 639 [7]  
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 8.00% [6],[16],[28] 7.50% [7],[29],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[29],[30],[31]  
Cost (45) [6],[16],[28] (57) [7],[29],[30],[31]  
Fair value $ 0 [6],[16],[28] $ (57) [7],[29],[30],[31]  
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.72% [6],[16] 11.06% [7],[29],[31]  
Reference Rate and Spread 8.00% [6],[16] 7.50% [7],[29],[31]  
Principal $ 15,728 [6],[16] $ 15,928 [7],[29],[31]  
Cost 15,506 [6],[16] 15,641 [7],[29],[31]  
Fair value $ 15,728 [6],[16] $ 15,928 [7],[29],[31]  
Investment, Identifier [Axis]: Savers, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   10.34%  
Reference Rate and Spread [14],[29],[31]   5.50%  
Principal [14],[29],[31]   $ 11,286  
Cost [14],[29],[31]   11,199  
Fair value [14],[29],[31]   $ 10,938  
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 70,000 70,000 [32]  
Cost $ 456 $ 456 [32]  
Fair value $ 2,310 $ 1,530 [32] 1,510
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 14.00% 14.00%  
Principal $ 11,440 $ 13,840  
Cost 11,345 13,698  
Fair value $ 11,440 13,840 5,320
Investment, Identifier [Axis]: Slick Innovations, LLC, Warrants      
Schedule of Investments [Line Items]      
Fair value   $ 0 400
Investment, Identifier [Axis]: Sonic Systems International, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) [7]   9,968  
Cost [7]   $ 1,356  
Fair value   $ 1,280 [7] 1,070
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   11.24%  
Reference Rate and Spread [7],[31]   7.50%  
Principal [7],[31]   $ 15,769  
Cost [7],[31]   15,527  
Fair value   $ 15,769 [7],[31] 11,757
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 863,636 [6] 863,636 [7]  
Cost $ 864 [6] $ 864 [7]  
Fair value $ 836 [6] $ 1,316 [7]  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.46%    
Reference Rate and Spread 6.00% [6],[16] 5.75% [7],[30],[31]  
Principal $ 446 [6],[16] $ 0 [7],[30],[31]  
Cost 394 [6],[16] (71) [7],[30],[31]  
Fair value $ 394 [6],[16] $ (71) [7],[30],[31]  
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.70% [6],[16] 9.69% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 5.75% [7],[31]  
Principal $ 34,886 [6],[16] $ 41,255 [7],[31]  
Cost 34,472 [6],[16] 40,603 [7],[31]  
Fair value $ 34,886 [6],[16] $ 41,255 [7],[31]  
Investment, Identifier [Axis]: Staples Canada ULC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[11],[17],[31],[82]   11.83%  
Reference Rate and Spread [7],[11],[17],[31],[82]   7.00%  
Principal [7],[11],[17],[31],[82]   $ 13,740  
Cost [7],[11],[17],[31],[82]   13,698  
Fair value [7],[11],[17],[31],[82]   $ 12,481  
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   10.05%  
Reference Rate and Spread [14],[29],[31]   5.50%  
Principal [14],[29],[31]   $ 7,623  
Cost [14],[29],[31]   7,559  
Fair value [14],[29],[31]   $ 7,166  
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 11.04%    
Reference Rate and Spread [13],[16] 5.50%    
Principal [13],[16] $ 7,527    
Cost [13],[16] 7,475    
Fair value [13],[16] $ 7,527    
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [13],[16] 11.28%    
Reference Rate and Spread [13],[16] 5.75%    
Principal [13],[16] $ 8,978    
Cost [13],[16] 8,717    
Fair value [13],[16] $ 8,977    
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 5,907,649 [6] 5,907,649 [7]  
Cost $ 0 [6] $ 0 [7]  
Fair value $ 0 [6] $ 0 [7] 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 8.50% [6],[34] 13.27% [7]  
Reference Rate and Spread [7]   8.50%  
PIK Rate 8.50%    
Principal $ 5,327 [6],[34] $ 5,000 [7]  
Cost 4,884 [6],[34] 4,556 [7]  
Fair value $ 3,190 [6],[34] $ 4,556 [7]  
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate   13.27%  
Reference Rate and Spread   8.50%  
Fair value   $ 4,556 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Fair value   $ 0 10,839
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 1,636 1,571  
Cost $ 4,500 $ 4,500  
Fair value $ 5,940 $ 4,500 4,500
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 20,500 $ 21,500  
Cost 20,427 21,378  
Fair value $ 20,427 $ 21,378 21,332
Investment, Identifier [Axis]: Tacala Investment Corp., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [31],[83],[84]   7.88%  
Reference Rate and Spread [31],[83],[84]   3.50%  
Principal [31],[83],[84]   $ 1,974  
Cost [31],[83],[84]   1,974  
Fair value [31],[83],[84]   $ 1,904  
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.88% [13],[16] 9.93% [14],[31]  
Reference Rate and Spread 5.00% [13],[16] 5.00% [14],[31]  
Principal $ 14,804 [13],[16] $ 14,964 [14],[31]  
Cost 14,588 [13],[16] 14,690 [14],[31]  
Fair value $ 14,717 [13],[16] $ 14,290 [14],[31]  
Investment, Identifier [Axis]: Tectonic Financial, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 200,000 [8] 200,000 [32]  
Cost $ 2,000 [8] $ 2,000 [32]  
Fair value $ 5,030 [8] $ 5,630 [32]  
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares)   544  
Cost   $ 9,245  
Fair value   7,681 8,579
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 6,605    
Cost $ 661    
Fair value $ 0 7,681  
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 5,643    
Cost $ 564    
Fair value $ 0 0  
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3      
Schedule of Investments [Line Items]      
Units (in shares) 544    
Cost $ 9,245    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% [38] 12.00%  
Principal $ 1,840 [38] $ 1,840  
Cost 1,840 [38] 1,840  
Fair value $ 1,726 [38] $ 1,840 1,040
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% [38] 12.00%  
Principal $ 15,200 [38] $ 15,200  
Cost 15,200 [38] 15,192  
Fair value $ 14,262 [38] $ 15,120 15,141
Investment, Identifier [Axis]: Televerde, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 460 [8] 460  
Cost $ 1,290 [8] $ 1,290  
Fair value 4,734 [8] 5,408 7,280
Investment, Identifier [Axis]: Televerde, LLC, Memeber Units      
Schedule of Investments [Line Items]      
Fair value $ 4,734 $ 5,408  
Investment, Identifier [Axis]: Televerde, LLC, Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 248 248  
Cost $ 718 $ 718  
Fair value $ 1,794 $ 1,794 0
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,000,000 [6],[41] 1,000,000 [7],[42]  
Cost $ 1,000 [6],[41] $ 1,000 [7],[42]  
Fair value $ 2,840 [6],[41] $ 1,830 [7],[42]  
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) [32]   1,280,000  
Cost [32]   $ 6,400  
Fair value   6,400 [32] 6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 172,110    
Cost $ 172    
Fair value 172    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1.1      
Schedule of Investments [Line Items]      
Fair value $ 6,400 6,400  
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) [8] 1,280,000    
Cost [8] $ 6,400    
Fair value [8] 6,400    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2.1      
Schedule of Investments [Line Items]      
Fair value $ 172 $ 0  
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 160 $ 120  
Cost 150 106  
Fair value $ 150 $ 106 262
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 7,521 $ 9,521  
Cost 7,475 9,442  
Fair value $ 7,347 $ 9,442 12,834
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 615 [8] 615 [32]  
Cost $ 4,655 [8] $ 4,655 [32]  
Fair value $ 12,740 [8] 7,800 [32] 8,660
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00%    
Fair value $ 7,920 7,920  
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 8.00%    
Principal $ 0 [28] 0 [30]  
Cost (1) [28] (5) [30]  
Fair value $ 0 [28] $ 0 [30] (8)
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 7,920 $ 7,920  
Cost 7,911 7,894  
Fair value $ 7,920 $ 7,920 8,720
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   11.57%  
Reference Rate and Spread [14],[29],[31]   1.25%  
PIK Rate [14],[29],[31]   7.25%  
Principal [14],[29],[31]   $ 18,352  
Cost [14],[29],[31]   18,284  
Fair value [14],[29],[31]   $ 6,859  
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [13],[16],[34] 12.53%    
Reference Rate and Spread [13],[16],[34] 7.15%    
PIK Rate [13],[16],[34] 6.00%    
Principal [13],[16],[34] $ 9,298    
Cost [13],[16],[34] 3,585    
Fair value [13],[16],[34] 3,333    
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2      
Schedule of Investments [Line Items]      
Principal [13],[34] 946    
Cost [13],[34] 20    
Fair value [13],[34] $ 0    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [7],[31]   9.82%  
Reference Rate and Spread [7],[31]   5.75%  
Principal [7],[31]   $ 33,577  
Cost [7],[31]   33,031  
Fair value [7],[31]   33,577  
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.46%    
Reference Rate and Spread [6],[16] 6.00%    
Principal [6],[16] $ 23,101    
Cost [6],[16] 22,817    
Fair value [6],[16] $ 23,101    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.96%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 9,017    
Cost [6],[16] 8,862    
Fair value [6],[16] $ 9,017    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.96%    
Reference Rate and Spread [6],[16] 6.50%    
Principal [6],[16] $ 4,689    
Cost [6],[16] 4,601    
Fair value [6],[16] $ 4,689    
Investment, Identifier [Axis]: UniTek Global Services, Inc. Secured Convertible Debt 1      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
PIK Rate 15.00%    
Fair value $ 3,889 4,592  
Investment, Identifier [Axis]: UniTek Global Services, Inc. Secured Convertible Debt 2      
Schedule of Investments [Line Items]      
Total Rate 15.00%    
PIK Rate 15.00%    
Fair value $ 1,908 $ 0  
Investment, Identifier [Axis]: UniTek Global Services, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 945,507 [13] 945,507 [14]  
Cost $ 0 [13] $ 0 [14]  
Fair value $ 0 [13] $ 0 [14] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1      
Schedule of Investments [Line Items]      
Units (in shares) 1,133,102 [8],[13] 1,133,102 [14],[32]  
Total Rate 20.00% [8],[13] 20.00% [14],[32]  
PIK Rate 20.00% [8],[13] 20.00% [14],[32]  
Cost $ 2,609 [8],[13] $ 2,141 [14],[32]  
Fair value $ 2,833 [8],[13] $ 2,833 [14],[32] 2,832
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2      
Schedule of Investments [Line Items]      
Units (in shares) 1,521,122 [13] 1,521,122 [14]  
Total Rate 20.00% [13] 20.00% [14]  
PIK Rate 20.00% [13] 20.00% [14]  
Cost $ 2,188 [13] $ 2,188 [14]  
Fair value $ 3,698 [13] $ 1,991 [14] 1,498
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3      
Schedule of Investments [Line Items]      
Units (in shares) 2,281,682 [13] 2,281,682 [14]  
Total Rate 19.00% [13] 19.00% [14]  
PIK Rate 19.00% [13] 19.00% [14]  
Cost $ 3,667 [13] $ 3,667 [14]  
Fair value $ 0 [13] $ 0 [14] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4      
Schedule of Investments [Line Items]      
Units (in shares) 4,336,866 [13] 4,336,866 [14]  
Total Rate 13.50% [13] 13.50% [14]  
PIK Rate 13.50% [13] 13.50% [14]  
Cost $ 7,924 [13] $ 7,924 [14]  
Fair value $ 0 [13] $ 0 [14] 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt      
Schedule of Investments [Line Items]      
Total Rate [14]   15.00%  
PIK Rate [14]   15.00%  
Principal [14]   $ 2,403  
Cost [14]   2,403  
Fair value   $ 4,592 [14] 2,375
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1      
Schedule of Investments [Line Items]      
Total Rate [13] 15.00%    
PIK Rate [13] 15.00%    
Principal [13] $ 1,714    
Cost [13] 1,714    
Fair value [13] $ 3,889    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2      
Schedule of Investments [Line Items]      
Total Rate [13] 15.00%    
PIK Rate [13] 15.00%    
Principal [13] $ 840    
Cost [13] 840    
Fair value [13] $ 1,908    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   10.76%  
Reference Rate and Spread 7.50% 5.50% [14],[29],[31]  
PIK Rate [14],[29],[31]   2.00%  
Principal [14],[29],[31]   $ 406  
Cost [14],[29],[31]   405  
Fair value $ 0 $ 382 [14],[29],[31] 371
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   10.76%  
Reference Rate and Spread 7.50% 5.50% [14],[29],[31]  
PIK Rate [14],[29],[31]   2.00%  
Principal [14],[29],[31]   $ 1,814  
Cost [14],[29],[31]   1,807  
Fair value $ 0 $ 1,712 [14],[29],[31] 1,852
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) 11.11% [9],[10],[45] 11.11% [11],[12],[32],[46]  
Cost $ 3,719 [9],[10],[45] $ 3,734 [11],[12],[32],[46]  
Fair value 5,694 [9],[10],[45] 5,855 [11],[12],[32],[46] 6,123
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests      
Schedule of Investments [Line Items]      
Fair value $ 5,694 5,855  
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP, LP Interests      
Schedule of Investments [Line Items]      
Units (as a percent) [9],[10],[45] 25.00%    
Cost [9],[10],[45] $ 2,493    
Fair value $ 2,838 [9],[10],[45] $ 0  
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 4,000,000 [6],[41] 4,000,000 [7],[42]  
Cost $ 4,000 [6],[41] $ 4,000 [7],[42]  
Fair value $ 0 [6],[41] 0 [7],[42] 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Memeber Units      
Schedule of Investments [Line Items]      
Total Rate 14.00%    
PIK Rate 14.00%    
Fair value $ 150 $ 220  
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 716,949 [6],[41] 716,949 [7],[42]  
Total Rate 14.00% [6],[41] 14.00% [7],[42]  
PIK Rate 14.00% [6],[41] 14.00% [7],[42]  
Cost $ 1,032 [6],[41] $ 1,032 [7],[42]  
Fair value $ 150 [6],[41] $ 220 [7],[42] 0
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.99%    
Reference Rate and Spread [6],[16] 7.50%    
Principal [6],[16] $ 4,000    
Cost [6],[16] 3,899    
Fair value [6],[16] $ 4,000    
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity      
Schedule of Investments [Line Items]      
Units (in shares) 1,038,462 [6],[8] 1,038,462 [7],[32]  
Cost $ 1,038 [6],[8] $ 1,038 [7],[32]  
Fair value $ 2,570 [6],[8] $ 3,930 [7],[32]  
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 12,240 [8],[41] 11,840 [32],[42]  
Cost $ 12,240 [8],[41] $ 11,840 [32],[42]  
Fair value $ 12,240 [8],[41] $ 11,940 [32],[42] 11,840
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 6.00% [16],[28],[38] 6.00% [30],[31],[42]  
Principal $ 0 [16],[28],[38] $ 0 [30],[31],[42]  
Cost 0 [16],[28],[38] (21) [30],[31],[42]  
Fair value $ 0 [16],[28],[38] $ (21) [30],[31],[42] 1,169
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.50% 11.50% [42]  
Principal $ 28,200 $ 30,400 [42]  
Cost 28,035 30,158 [42]  
Fair value $ 28,035 $ 30,161 [42] 30,100
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 5.25% [13],[16],[28] 5.25% [14],[30],[31]  
Principal $ 0 [13],[16],[28] $ 0 [14],[30],[31]  
Cost (408) [13],[16],[28] (630) [14],[30],[31]  
Fair value $ (408) [13],[16],[28] $ (630) [14],[30],[31]  
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.64% [13],[16] 10.41% [14],[31]  
Reference Rate and Spread 6.00% [13],[16] 6.00% [14],[31]  
Principal $ 17,433 [13],[16] $ 17,685 [14],[31]  
Cost 17,195 [13],[16] 17,381 [14],[31]  
Fair value $ 15,775 [13],[16] $ 15,479 [14],[31]  
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14]   10.38%  
Reference Rate and Spread [14]   6.00%  
Principal [14]   $ 15,448  
Cost [14]   15,313  
Fair value [14]   $ 12,049  
Investment, Identifier [Axis]: Vision Interests, Inc., Series A Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 3,000,000 [8] 3,000,000 [32]  
Cost $ 3,000 [8] $ 3,000 [32]  
Fair value $ 3,000 [8] $ 3,000 [32] 3,000
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock      
Schedule of Investments [Line Items]      
Units (in shares) 70,207 [6] 70,207 [7]  
Cost $ 767 [6] $ 767 [7]  
Fair value $ 2,180 [6] 2,250 [7]  
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.63%    
Reference Rate and Spread [6],[16] 7.00%    
Principal [6],[16] $ 42,500    
Cost [6],[16] 41,455    
Fair value [6],[16] $ 41,455    
Investment, Identifier [Axis]: Volusion, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,802,780    
Cost $ 2,576    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares)   4,876,670  
Cost   $ 14,000  
Fair value   0 5,990
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1      
Schedule of Investments [Line Items]      
Units (in shares) 5,097,595    
Cost $ 8,646    
Fair value 7,250    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1.1      
Schedule of Investments [Line Items]      
Fair value $ 0 0  
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2      
Schedule of Investments [Line Items]      
Units (in shares) 142,512    
Cost $ 0    
Fair value 0    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1      
Schedule of Investments [Line Items]      
Fair value $ 7,250 0  
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3      
Schedule of Investments [Line Items]      
Units (in shares) 4,876,670    
Cost $ 14,000    
Fair value $ 0 $ 0  
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 10.00% 11.50% [40]  
Principal $ 2,100 $ 16,734 [40]  
Cost 2,100 16,734 [40]  
Fair value $ 2,100 14,914 [40] 17,434
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 10.00%    
Fair value $ 2,100 0  
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.50%    
Fair value $ 0 $ 14,914  
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt      
Schedule of Investments [Line Items]      
Total Rate 8.00% 8.00%  
Principal   $ 409  
Cost   409  
Fair value $ 0 $ 0 409
Investment, Identifier [Axis]: Volusion, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) [27]   1,831,355  
Cost [27]   $ 2,576  
Fair value $ 0 $ 0 [27] 0
Investment, Identifier [Axis]: Wahoo Fitness Acquisition L.L.C., Secured Debt      
Schedule of Investments [Line Items]      
Total Rate [14],[29],[31]   10.64%  
Reference Rate and Spread [14],[29],[31]   5.75%  
Principal [14],[29],[31]   $ 14,625  
Cost [14],[29],[31]   14,268  
Fair value [14],[29],[31]   $ 8,409  
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 400,000 [6] 400,000 [7]  
Cost $ 400 [6] $ 400 [7]  
Fair value $ 731 [6] $ 420 [7]  
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 7.00% [6],[16],[28] 7.00% [7],[30],[31]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30],[31]  
Cost (4) [6],[16],[28] (6) [7],[30],[31]  
Fair value $ (4) [6],[16],[28] $ (6) [7],[30],[31]  
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.54% [6],[16] 10.74% [7],[31]  
Reference Rate and Spread 7.00% [6],[16] 7.00% [7],[31]  
Principal $ 3,723 [6],[16] $ 4,235 [7],[31]  
Cost 3,685 [6],[16] 4,173 [7],[31]  
Fair value $ 3,723 [6],[16] $ 4,146 [7],[31]  
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 11.50% [6],[16],[68] 10.73% [7],[31]  
Reference Rate and Spread 6.00% [6],[16],[68] 6.00% [7],[31]  
Principal $ 1,853 [6],[16],[68] $ 371 [7],[31]  
Cost 1,825 [6],[16],[68] 334 [7],[31]  
Fair value $ 1,853 [6],[16],[68] $ 370 [7],[31]  
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.50% [6],[16] 10.73% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[31]  
Principal $ 386 [6],[16] $ 391 [7],[31]  
Cost 364 [6],[16] 361 [7],[31]  
Fair value $ 386 [6],[16] $ 391 [7],[31]  
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.50% [6],[16] 10.73% [7],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[31]  
Principal $ 15,886 [6],[16] $ 28,957 [7],[31]  
Cost 15,736 [6],[16] 28,591 [7],[31]  
Fair value $ 15,886 [6],[16] $ 28,947 [7],[31]  
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.50%    
Reference Rate and Spread [6],[16] 6.00%    
Principal [6],[16] $ 12,707    
Cost [6],[16] 12,585    
Fair value [6],[16] $ 12,707    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock      
Schedule of Investments [Line Items]      
Units (in shares) 1,541,400 [6] 1,541,400 [7]  
Cost $ 1,541 [6],[16] $ 1,541 [7]  
Fair value $ 2,990 [6],[16] $ 1,950 [7]  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[85] 11.34%    
Reference Rate and Spread 6.00% [6],[16],[85] 6.00% [7],[29],[30],[31]  
Principal $ 2,405 [6],[16],[85] $ 0 [7],[29],[30],[31]  
Cost 2,365 [6],[16],[85] (20) [7],[29],[30],[31]  
Fair value $ 2,405 [6],[16],[85] $ (20) [7],[29],[30],[31]  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.35% [6],[16] 8.59% [7],[29],[31]  
Reference Rate and Spread 6.00% [6],[16] 6.00% [7],[29],[31]  
Principal $ 10,658 [6],[16] $ 10,794 [7],[29],[31]  
Cost 10,512 [6],[16] 10,608 [7],[29],[31]  
Fair value $ 10,658 [6],[16] $ 10,685 [7],[29],[31]  
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 11.35%    
Reference Rate and Spread [6],[16] 6.00%    
Principal [6],[16] $ 5,303    
Cost [6],[16] 5,199    
Fair value [6],[16] $ 5,303    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate [6],[16],[86] 12.64%    
Reference Rate and Spread 7.00% [6],[16],[86] 7.00% [7],[30],[31]  
Principal $ 2,222 [6],[16],[86] $ 0 [7],[30],[31]  
Cost 2,198 [6],[16],[86] (34) [7],[30],[31]  
Fair value $ 2,222 [6],[16],[86] $ 0 [7],[30],[31]  
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate [6],[16] 12.66%    
Reference Rate and Spread 7.00% [6],[16] 7.00% [7],[30],[31]  
Principal $ 2,067 [6],[16] $ 0 [7],[30],[31]  
Cost 2,036 [6],[16] (17) [7],[30],[31]  
Fair value $ 2,067 [6],[16] $ (17) [7],[30],[31]  
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 12.66% [6],[16] 10.74% [7],[31]  
Reference Rate and Spread 7.00% [6],[16] 7.00% [7],[31]  
Principal $ 9,300 [6],[16] $ 10,000 [7],[31]  
Cost 9,193 [6],[16] 9,848 [7],[31]  
Fair value $ 9,300 [6],[16] $ 9,992 [7],[31]  
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity      
Schedule of Investments [Line Items]      
Units (in shares) 3,845 [8] 3,845  
Cost $ 3,845 [8] $ 3,845  
Fair value $ 3,845 [8] $ 3,845 0
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00% 13.00%  
Principal $ 12,123 $ 14,280  
Cost 12,028 14,140  
Fair value $ 12,028 $ 14,140 0
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1      
Schedule of Investments [Line Items]      
Reference Rate and Spread 5.25% [6],[16],[28] 5.25% [7],[30]  
Principal $ 0 [6],[16],[28] $ 0 [7],[30]  
Cost (163) [6],[16],[28] (218) [7],[30]  
Fair value $ 0 [6],[16],[28] $ (218) [7],[30]  
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 11.22% [6],[16] 10.84% [7]  
Reference Rate and Spread 5.75% [6],[16] 5.25% [7]  
Principal $ 24,057 [6],[16] $ 24,300 [7]  
Cost 23,713 [6],[16] 23,864 [7]  
Fair value $ 24,057 [6],[16] $ 24,135 [7]  
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 11.25% [6],[16] 8.63% [7]  
Reference Rate and Spread 5.75% [6],[16] 5.25% [7]  
Principal $ 37,828 [6],[16] $ 38,311 [7]  
Cost 37,336 [6],[16] 37,691 [7]  
Fair value $ 37,828 [6],[16] $ 38,051 [7]  
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt      
Schedule of Investments [Line Items]      
Total Rate 13.00% [13],[16] 9.51% [14],[31]  
Reference Rate and Spread 7.50% [13],[16] 5.50% [14],[31]  
Principal $ 11,167 [13],[16] $ 12,659 [14],[31]  
Cost 10,970 [13],[16] 12,619 [14],[31]  
Fair value $ 10,220 [13],[16] $ 12,127 [14],[31]  
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Preferred Member Units      
Schedule of Investments [Line Items]      
Units (in shares) 10,072 10,072  
Cost $ 2,834 $ 2,834  
Fair value $ 0 240 2,130
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 6.50%    
Fair value $ 945 $ 945  
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.00% 12.00%  
Principal $ 450 $ 450  
Cost 450 450  
Fair value $ 450 $ 450 625
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 6.50% 6.50%  
Principal $ 1,000 $ 1,000  
Cost 1,000 1,000  
Fair value $ 945 $ 945 1,000
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3      
Schedule of Investments [Line Items]      
Total Rate 14.00% 14.00%  
Principal $ 2,750 $ 2,750  
Cost 2,750 2,750  
Fair value $ 2,080 $ 2,676 2,750
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Warrants      
Schedule of Investments [Line Items]      
Units (in shares) 587 [26] 587 [27]  
Cost $ 600 [26] $ 600 [27]  
Fair value $ 0 [26] $ 0 [27] $ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1      
Schedule of Investments [Line Items]      
Total Rate 12.71% [6],[16],[87] 11.67% [7],[29],[31]  
Reference Rate and Spread 7.25% [6],[16],[87] 7.25% [7],[29],[31]  
Principal $ 17,279 [6],[16],[87] $ 17,512 [7],[29],[31]  
Cost 17,246 [6],[16],[87] 17,279 [7],[29],[31]  
Fair value $ 16,380 [6],[16],[87] $ 17,512 [7],[29],[31]  
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2      
Schedule of Investments [Line Items]      
Total Rate 12.71% [6],[16],[87] 11.67% [7],[29],[31],[83]  
Reference Rate and Spread 7.25% [6],[16],[87] 7.25% [7],[29],[31],[83]  
Principal $ 4,331 [6],[16],[87] $ 4,389 [7],[29],[31],[83]  
Cost 4,327 [6],[16],[87] 4,360 [7],[29],[31],[83]  
Fair value $ 4,067 [6],[16],[87] $ 4,379 [7],[29],[31],[83]  
[1] 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.
[2] 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.
[3] 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.
[4] 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.
[5] Money market fund interests included in cash and cash equivalents.
[6] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments.
[7] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments.
[8] Income producing through dividends or distributions.
[9] 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.
[10] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments.
[11] 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.
[12] Other Portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Other Portfolio investments.
[13] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments.
[14] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments.
[15] Portfolio company headquarters are located outside of the United States.
[16] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 96% of these floating rate loans (based on the par amount) contain LIBOR or Term SOFR (“SOFR”) floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.20%.
[17] Portfolio company headquarters are located outside of the United States.
[18] 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.
[19] 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.
[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] 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.
[22] All portfolio company headquarters are based in the United States, unless otherwise noted.
[23] All investments are Lower Middle Market portfolio investments, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Lower Middle Market portfolio investments. All of the Company’s investments, unless otherwise noted, are encumbered either as security for the Company’s Corporate Facility or SPV Facility (each as defined in Note B.5. — Summary of Significant Accounting Policies — Deferred Financing Costs, and together theCredit Facilities”) or in support of the SBA-guaranteed debentures issued by the Funds.
[24] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[25] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[26] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[27] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[28] The position is unfunded and no interest income is being earned as of December 31, 2023. The position may earn a nominal unused facility fee on committed amounts.
[29] A majority of the variable rate loans in the Company’s Investment Portfolio bear interest at a rate that may be determined by reference to either LIBOR (“L”), 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 rate, plus the Adjustment, exceeds the stated floor rate, as applicable. As of December 31, 2022, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.35%.
[30] The position is unfunded and no interest income is being earned as of December 31, 2022. The position may earn a nominal unused facility fee on committed amounts.
[31] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 66% of these floating rate loans (based on the par amount) contain LIBOR or Term SOFR (“SOFR”) floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.04%.
[32] Income producing through dividends or distributions.
[33] Non-accrual and non-income producing debt investment.
[34] Non-accrual and non-income producing debt investment.
[35] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit.
[36] Index based floating interest rate is subject to contractual maximum base rate of 3.00%.
[37] Index based floating interest rate is subject to contractual maximum base rate of 2.50%.
[38] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[39] 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+6.00% (Floor 1.00%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[40] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[41] Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[42] Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[43] 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 plus 8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[44] 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+8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[45] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[46] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[47] The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%, but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period.
[48] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 2.00%). RLOC 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, 2023.
[49] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). RLOC 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, 2022.
[50] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[51] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC 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, 2023.
[52] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+8.00% (Floor 1.00%). RLOC 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, 2022.
[53] Effective yield as of December 31, 2023 was approximately 4.98% on the Dreyfus Government Cash Management.
[54] Effective yield as of December 31, 2023 was approximately 5.01% on the Fidelity Government Fund.
[55] Effective yield as of December 31, 2023 was approximately 4.99% on the Fidelity Treasury.
[56] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 1.00%). RLOC 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, 2023.
[57] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC 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, 2023.
[58] Index based floating interest rate is subject to contractual maximum base rate of 1.50%.
[59] Index based floating interest rate is subject to contractual maximum base rate of 1.50%.
[60] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC 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, 2022.
[61] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.50%). RLOC 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, 2023.
[62] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+6.50% PIK or Prime+5.50% PIK. Revolving 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, 2022.
[63] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit.
[64] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.75% (Floor 1.00%). RLOC 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, 2023.
[65] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 2.00%). RLOC 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, 2023.
[66] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+10.00%. RLOC 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, 2023.
[67] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+10.00%. RLOC 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, 2022.
[68] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (Floor 1.00%). RLOC 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, 2023.
[69] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). 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, 2023.
[70] External Investment Manager. Investment is not encumbered as security for the Company’s Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds.
[71] External Investment Manager. Investment is not encumbered as security for the Company’s Credit Facilities or in support of the SBA-guaranteed debentures issued by the Funds.
[72] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). RLOC 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, 2022.
[73] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+8.00% (Floor 1.00%). RLOC 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, 2022.
[74] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). RLOC 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, 2023.
[75] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+5.75% (1.00%). 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, 2023.
[76] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan 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, 2022.
[77] Warrants are presented in equivalent units with a strike price of $14.28 per unit.
[78] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.75% (Floor 1.25%). RLOC 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, 2022.
[79] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.50% (Floor 2.00%). RLOC 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, 2023.
[80] Portfolio company is in a bankruptcy process and, as such, the maturity date of our debt investment in this portfolio company will not be finally determined until such process is complete. As noted in footnote (14), our debt investment in this portfolio company is on non-accrual status.
[81] 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 11.25% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[82] In connection with the Company’s debt investment in Staples Canada ULC and in an attempt to mitigate any potential adverse change in foreign exchange rates during the term of the Company’s investment, the Company maintains a forward foreign currency contract with Cadence Bank to lend $16.9 million Canadian Dollars and receive $13.1 million U.S. Dollars with a settlement date of September 14, 2023. The unrealized appreciation on the forward foreign currency contract was $0.6 million as of December 31, 2022.
[83] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan 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, 2022.
[84] Short-term portfolio investments. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of short-term portfolio investments.
[85] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+6.00% (0.75%). 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, 2023.
[86] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.00% (Floor 1.00%). RLOC 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, 2023.
[87] As of December 31, 2023, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). 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, 2023.