Quarterly report pursuant to Section 13 or 15(d)

Consolidated Schedule of Investments

v3.24.2.u1
Consolidated Schedule of Investments - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Jun. 30, 2023
Dec. 31, 2022
Schedule of Investments [Line Items]        
Cost $ 4,114,074 [1] $ 3,725,960 [2]    
Fair value $ 4,737,511 [3] $ 4,286,271 [4]    
Investment owned, percent of net assets (as a percent) 183.50% 173.00%    
Analytical Systems Keco Holdings, LLC        
Schedule of Investments [Line Items]        
Cost $ 10,086 $ 10,246    
Fair value 9,763 9,163    
ASC Interests, LLC        
Schedule of Investments [Line Items]        
Cost 3,728 3,727    
Fair value 2,304 2,363    
ATS Workholding, LLC        
Schedule of Investments [Line Items]        
Cost 8,816 [5] 8,647 [6]    
Fair value 499 [5] 801 [6]    
Barfly Ventures, LLC        
Schedule of Investments [Line Items]        
Cost 2,295 [5] 2,295 [6]    
Fair value 5,431 [5] 4,851 [6]    
Batjer TopCo, LLC        
Schedule of Investments [Line Items]        
Cost 15,328 14,867    
Fair value $ 16,953 $ 16,995    
Bolder Panther Group, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent) 8.00% 8.00%    
Cost $ 116,385 $ 110,078    
Fair value 137,546 127,576    
Brewer Crane Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 9,544 9,778    
Fair value 10,564 11,118    
Bridge Capital Solutions Corporation        
Schedule of Investments [Line Items]        
Cost 12,945 12,945    
Fair value 15,043 15,103    
California Splendor Holdings LLC        
Schedule of Investments [Line Items]        
Cost 49,211 43,341    
Fair value 53,743 47,951    
Centre Technologies Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 26,361 23,634    
Fair value 31,962 28,614    
Chamberlin Holding LLC        
Schedule of Investments [Line Items]        
Cost 28,681 28,635    
Fair value 48,800 47,800    
Charps, LLC        
Schedule of Investments [Line Items]        
Cost 6,885 6,641    
Fair value 21,274 21,384    
Clad-Rex Steel, LLC        
Schedule of Investments [Line Items]        
Cost 16,712 17,353    
Fair value 15,946 15,755    
Cody Pools, Inc.        
Schedule of Investments [Line Items]        
Cost 49,077 50,348    
Fair value 115,281 114,543    
Colonial Electric Company LLC        
Schedule of Investments [Line Items]        
Cost 25,753 30,586    
Fair value 29,880 31,707    
CompareNetworks Topco, LLC        
Schedule of Investments [Line Items]        
Cost 5,072 5,429    
Fair value 16,027 17,904    
Compass Systems & Sales, LLC        
Schedule of Investments [Line Items]        
Cost 26,089 24,488    
Fair value 26,585 24,488    
Cybermedia Technologies, LLC        
Schedule of Investments [Line Items]        
Cost 42,449 43,389    
Fair value 43,469 43,389    
Datacom, LLC        
Schedule of Investments [Line Items]        
Cost 10,889 11,130    
Fair value 7,993 8,104    
Digital Products Holdings LLC        
Schedule of Investments [Line Items]        
Cost 22,839 24,259    
Fair value 23,106 24,525    
Direct Marketing Solutions, Inc.        
Schedule of Investments [Line Items]        
Cost 33,014 35,031    
Fair value 44,323 47,516    
Elgin AcquireCo, LLC        
Schedule of Investments [Line Items]        
Cost 31,692 32,161    
Fair value 31,888 32,637    
Gamber-Johnson Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 66,765 71,505    
Fair value 155,828 150,788    
Garreco, LLC        
Schedule of Investments [Line Items]        
Cost 1,200 4,288    
Fair value 1,580 4,668    
GRT Rubber Technologies LLC        
Schedule of Investments [Line Items]        
Cost 56,585 55,819    
Fair value 88,079 87,333    
Gulf Publishing Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 11,681 11,681    
Fair value 1,948 4,744    
Harris Preston Fund Investments        
Schedule of Investments [Line Items]        
Cost 4,034 [7],[8] 3,593 [9],[10]    
Fair value 9,806 [7],[8] 6,365 [9],[10]    
IG Investor, LLC        
Schedule of Investments [Line Items]        
Cost 50,465 51,299    
Fair value 50,465 51,299    
Jensen Jewelers of Idaho, LLC        
Schedule of Investments [Line Items]        
Cost 2,611 2,809    
Fair value 14,130 14,418    
JorVet Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 35,607 36,224    
Fair value 35,607 36,224    
KBK Industries, LLC        
Schedule of Investments [Line Items]        
Cost 5,051 5,445    
Fair value 29,120 27,470    
Kickhaefer Manufacturing Company, LLC        
Schedule of Investments [Line Items]        
Cost 34,562 36,811    
Fair value 35,750 35,999    
Metalforming Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 29,961 31,195    
Fair value 31,730 31,158    
MH Corbin Holding LLC        
Schedule of Investments [Line Items]        
Cost 15,640 15,800    
Fair value 5,192 5,352    
MS Private Loan Fund I, LP        
Schedule of Investments [Line Items]        
Cost 21,250 [7],[8] 14,250 [9],[10]    
Fair value 21,469 [7],[8] 14,527 [9],[10]    
MS Private Loan Fund II, LP        
Schedule of Investments [Line Items]        
Cost 53,133 [7],[8] 24,928 [9],[10]    
Fair value 53,218 [7],[8] 24,928 [9],[10]    
Mystic Logistics Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 8,447 8,466    
Fair value 31,846 32,136    
Nello Industries Investco, LLC        
Schedule of Investments [Line Items]        
Cost 47,622      
Fair value 47,622      
NexRev LLC        
Schedule of Investments [Line Items]        
Cost 19,590 17,964    
Fair value 19,621 16,101    
NRP Jones, LLC        
Schedule of Investments [Line Items]        
Cost 5,797 5,797    
Fair value 3,519 3,599    
NuStep, LLC        
Schedule of Investments [Line Items]        
Cost 34,294 34,288    
Fair value 37,382 36,416    
OMi Topco, LLC        
Schedule of Investments [Line Items]        
Cost 13,028 13,762    
Fair value 60,280 49,130    
Orttech Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 31,868 31,925    
Fair value 37,020 39,090    
Pearl Meyer Topco LLC        
Schedule of Investments [Line Items]        
Cost 83,675 64,054    
Fair value 124,240 95,271    
Pinnacle TopCo, LLC        
Schedule of Investments [Line Items]        
Cost 42,895 43,323    
Fair value 45,685 43,323    
PPL RVs, Inc.        
Schedule of Investments [Line Items]        
Cost 21,254 22,078    
Fair value 35,405 37,225    
Principle Environmental, LLC        
Schedule of Investments [Line Items]        
Cost 12,750 12,738    
Fair value 17,151 17,089    
Robbins Bros. Jewelry, Inc.        
Schedule of Investments [Line Items]        
Cost 44,525 44,953    
Fair value 17,364 30,772    
Tedder Industries, LLC        
Schedule of Investments [Line Items]        
Cost 27,510 27,510    
Fair value 6,383 15,988    
Televerde, LLC        
Schedule of Investments [Line Items]        
Cost 2,008 2,008    
Fair value 4,363 6,528    
Trantech Radiator Topco, LLC        
Schedule of Investments [Line Items]        
Cost 12,496 12,565    
Fair value 17,690 20,660    
Volusion, LLC        
Schedule of Investments [Line Items]        
Cost 25,205 27,322    
Fair value 9,100 9,350    
VVS Holdco LLC        
Schedule of Investments [Line Items]        
Cost 39,149 40,275    
Fair value 39,149 40,275    
Ziegler’s NYPD, LLC        
Schedule of Investments [Line Items]        
Cost 7,634 7,634    
Fair value 3,105 3,475    
AAC Holdings, Inc.        
Schedule of Investments [Line Items]        
Cost 19,515 [11] 17,537 [12]    
Fair value 16,246 [11] 14,313 [12]    
Boccella Precast Products LLC        
Schedule of Investments [Line Items]        
Cost 2,576 2,576    
Fair value 575 2,310    
Buca C, LLC        
Schedule of Investments [Line Items]        
Cost 22,180 21,750    
Fair value 12,573 12,144    
Career Team Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 25,131 25,287    
Fair value 25,131 25,287    
DMA Industries, LLC        
Schedule of Investments [Line Items]        
Cost 26,279 24,629    
Fair value 26,372 26,460    
Dos Rios Partners        
Schedule of Investments [Line Items]        
Cost 8,132 [7],[8] 8,318 [9],[10]    
Fair value 11,033 [7],[8] 11,074 [9],[10]    
FCC Intermediate Holdco, LLC (Supplycore)        
Schedule of Investments [Line Items]        
Cost 32,611      
Fair value 32,611      
Freeport Financial Funds        
Schedule of Investments [Line Items]        
Cost 5,631 [7],[8] 7,019 [9],[10]    
Fair value 5,252 [7],[8] 6,716 [9],[10]    
GFG Group, LLC        
Schedule of Investments [Line Items]        
Cost 14,212 14,202    
Fair value 19,155 20,805    
Gulf Manufacturing, LLC        
Schedule of Investments [Line Items]        
Cost [7],[13] 42,560      
Fair value [7],[13] 54,980      
Harris Preston Fund Investments        
Schedule of Investments [Line Items]        
Cost 10,601 [7],[8] 8,219 [9],[10]    
Fair value 14,548 [7],[8] 10,863 [9],[10]    
Hawk Ridge Systems, LLC        
Schedule of Investments [Line Items]        
Cost 50,260 50,116    
Fair value 66,356 65,610    
Houston Plating and Coatings, LLC        
Schedule of Investments [Line Items]        
Cost 5,352 5,352    
Fair value 6,150 6,220    
Infinity X1 Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 19,754 21,403    
Fair value 19,754 21,403    
Integral Energy Services        
Schedule of Investments [Line Items]        
Cost 14,398 [5] 15,906 [6]    
Fair value 13,691 [5] 14,351 [6]    
Iron-Main Investments, LLC        
Schedule of Investments [Line Items]        
Cost 47,272 48,885    
Fair value 47,196 48,809    
ITA Holdings Group, LLC        
Schedule of Investments [Line Items]        
Cost 11,193 10,464    
Fair value 11,762 10,464    
Johnson Downie Opco, LLC        
Schedule of Investments [Line Items]        
Cost 25,015 27,683    
Fair value 34,577 33,827    
Nebraska Vet AcquireCo, LLC        
Schedule of Investments [Line Items]        
Cost 70,091 43,116    
Fair value 82,860 51,314    
OnAsset Intelligence, Inc.        
Schedule of Investments [Line Items]        
Cost 12,683 12,683    
Fair value 2,200 3,172    
Oneliance, LLC        
Schedule of Investments [Line Items]        
Cost 6,306 6,539    
Fair value $ 6,850 $ 6,478    
SI East, LLC        
Schedule of Investments [Line Items]        
Total Rate 11.75% 11.25%    
Cost $ 71,364 $ 56,928    
Fair value 87,601 74,831    
Slick Innovations, LLC        
Schedule of Investments [Line Items]        
Cost 17,900 11,801    
Fair value 19,960 13,750    
Student Resource Center, LLC        
Schedule of Investments [Line Items]        
Cost 4,884 [5] 4,884 [6]    
Fair value 1,644 [5] 3,190 [6]    
Superior Rigging & Erecting Co.        
Schedule of Investments [Line Items]        
Cost 4,500 24,927    
Fair value 6,430 26,367    
The Affiliati Network, LLC        
Schedule of Investments [Line Items]        
Cost 12,918 14,197    
Fair value 12,789 14,069    
UniTek Global Services, Inc.        
Schedule of Investments [Line Items]        
Cost 19,410 [11] 18,942 [12]    
Fair value 12,711 [11] 12,328 [12]    
Universal Wellhead Services Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 5,032 [5] 5,032 [6]    
Fair value 0 [5] 150 [6]    
Urgent DSO LLC        
Schedule of Investments [Line Items]        
Cost 12,854      
Fair value 12,854      
World Micro Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 15,885 15,873    
Fair value 15,885 15,873    
AB Centers Acquisition Corporation        
Schedule of Investments [Line Items]        
Cost 24,617 [5] 22,440 [6]    
Fair value 25,245 [5] 23,110 [6]    
Acumera, Inc.        
Schedule of Investments [Line Items]        
Cost 24,242 [5] 24,524 [6]    
Fair value 24,591 [5] 24,904 [6]    
Adams Publishing Group, LLC        
Schedule of Investments [Line Items]        
Cost 27,880 [5] 29,009 [6]    
Fair value 26,835 [5] 28,468 [6]    
American Health Staffing Group, Inc.        
Schedule of Investments [Line Items]        
Cost 6,479 [5] 6,504 [6]    
Fair value 6,511 [5] 6,542 [6]    
American Nuts, LLC        
Schedule of Investments [Line Items]        
Cost 33,031 [5] 31,640 [6]    
Fair value 24,465 [5] 23,268 [6]    
American Teleconferencing Services, Ltd.        
Schedule of Investments [Line Items]        
Cost 16,746 [11] 16,686 [12]    
Fair value 450 [11] 781 [12]    
ArborWorks, LLC        
Schedule of Investments [Line Items]        
Cost 25,703 [5] 23,350 [6]    
Fair value 23,961 [5] 23,116 [6]    
ATS Operating, LLC        
Schedule of Investments [Line Items]        
Cost 14,796 [5] 14,400 [6]    
Fair value 14,796 [5] 14,350 [6]    
AVEX Aviation Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 24,559 [5] 24,661 [6]    
Fair value 25,165 [5] 24,934 [6]    
Berry Aviation, Inc.        
Schedule of Investments [Line Items]        
Cost 286 [5] 0 [6]    
Fair value 998 [5] 2,760 [6]    
Bettercloud, Inc.        
Schedule of Investments [Line Items]        
Cost 29,934 [5] 28,944 [6]    
Fair value 28,825 [5] 27,488 [6]    
Bluestem Brands, Inc.        
Schedule of Investments [Line Items]        
Cost 7,424 [11] 5,998 [12]    
Fair value 6,341 [11] 5,883 [12]    
Bond Brand Loyalty ULC        
Schedule of Investments [Line Items]        
Cost 13,067 [5],[7],[13] 13,134 [6],[9],[14]    
Fair value 13,192 [5],[7],[13] 13,285 [6],[9],[14]    
BP Loenbro Holdings Inc.        
Schedule of Investments [Line Items]        
Cost [5] 29,926      
Fair value [5] 30,181      
Brainworks Software, LLC        
Schedule of Investments [Line Items]        
Cost 7,817 [5] 7,817 [6]    
Fair value 1,511 [5] 1,836 [6]    
Brightwood Capital Fund Investments        
Schedule of Investments [Line Items]        
Cost 12,670 [7],[8] 12,877 [9],[10]    
Fair value 10,633 [7],[8] 10,886 [9],[10]    
Burning Glass Intermediate Holding Company, Inc.        
Schedule of Investments [Line Items]        
Cost 19,668 [5] 19,900 [6]    
Fair value 19,885 [5] 20,146 [6]    
CAI Software LLC        
Schedule of Investments [Line Items]        
Cost 2,142 1,789    
Fair value 2,227 1,789    
CaseWorthy, Inc.        
Schedule of Investments [Line Items]        
Cost 246 [5] 14,171 [6]    
Fair value 490 [5] $ 14,273 [6]    
Channel Partners Intermediateco, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.00%    
Cost 47,260 [5] $ 44,769 [6]    
Fair value 45,154 [5] $ 43,690 [6]    
Computer Data Source, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   8.00%    
Cost 23,761 [5] $ 23,067 [6]    
Fair value 23,668 [5] 22,605 [6]    
Coregistics Buyer LLC        
Schedule of Investments [Line Items]        
Cost [5],[13] 42,257      
Fair value [5],[13] 42,257      
CQ Fluency, LLC        
Schedule of Investments [Line Items]        
Cost 10,715 [5] 10,788 [6]    
Fair value 10,887 [5] 10,788 [6]    
Creative Foam Corporation        
Schedule of Investments [Line Items]        
Cost [5] 105,206      
Fair value [5] 105,206      
DTE Enterprises, LLC        
Schedule of Investments [Line Items]        
Cost 2,092 [5] 2,060 [6]    
Fair value 855 [5] 1,544 [6]    
Dynamic Communities, LLC        
Schedule of Investments [Line Items]        
Cost 4,172 [5] 3,920 [6]    
Fair value 4,084 [5] 3,831 [6]    
Eastern Wholesale Fence LLC        
Schedule of Investments [Line Items]        
Cost 27,584 [5] 27,882 [6]    
Fair value 26,476 [5] 26,994 [6]    
EnCap Energy Fund Investments        
Schedule of Investments [Line Items]        
Cost 29,750 [7],[8] 25,431 [9],[10]    
Fair value 19,846 [7],[8] 15,864 [9],[10]    
Engineering Research & Consulting, LLC        
Schedule of Investments [Line Items]        
Cost 16,143 [5] 15,864 [6]    
Fair value 16,155 [5] 16,134 [6]    
Escalent, Inc.        
Schedule of Investments [Line Items]        
Cost 26,186 [5] 26,248 [6]    
Fair value 26,929 [5] 27,008 [6]    
Event Holdco, LLC        
Schedule of Investments [Line Items]        
Cost 49,428 [5] 47,575 [6]    
Fair value 49,404 [5] 46,999 [6]    
Fuse, LLC        
Schedule of Investments [Line Items]        
Cost 2,066 [11] 2,066 [12]    
Fair value 1,076 [11] 1,320 [12]    
Garyline, LLC        
Schedule of Investments [Line Items]        
Cost 34,764 [5] 31,979 [6]    
Fair value 35,800 [5] $ 31,979 [6]    
GS HVAM Intermediate, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.50%    
Cost 11,681 [5] $ 13,314 [6]    
Fair value 11,727 [5] $ 13,339 [6]    
GULF PACIFIC ACQUISITION, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   5.75%    
Cost 4,524 [5] $ 4,282 [6]    
Fair value 4,561 [5] 4,370 [6]    
HDC/HW Intermediate Holdings        
Schedule of Investments [Line Items]        
Cost 2,977 [5] 4,121 [6]    
Fair value 2,902 [5] 3,742 [6]    
HEADLANDS OP-CO LLC        
Schedule of Investments [Line Items]        
Cost 30,831 [5] 22,958 [6]    
Fair value 31,208 [5] 23,307 [6]    
IG Parent Corporation        
Schedule of Investments [Line Items]        
Cost 14,926 [11] 14,173 [12]    
Fair value 15,082 [11] $ 14,352 [12]    
Imaging Business Machines, L.L.C.        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.00%    
Cost 22,059 [5] $ 22,883 [6]    
Fair value 22,604 [5] 23,318 [6]    
Insight Borrower Corporation        
Schedule of Investments [Line Items]        
Cost 14,515 [5] 14,538 [6]    
Fair value 14,038 [5] $ 14,787 [6]    
Inspire Aesthetics Management, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   8.00%    
Cost 11,191 [5] $ 11,212 [6]    
Fair value 10,139 [5] $ 11,080 [6]    
Interface Security Systems, L.L.C        
Schedule of Investments [Line Items]        
Spread (as a percent)   10.00%    
Cost 9,159 [5] $ 9,072 [6]    
Fair value 1,866 [5] 2,212 [6]    
Invincible Boat Company, LLC.        
Schedule of Investments [Line Items]        
Cost 16,765 [5] 17,263 [6]    
Fair value 16,515 [5] 17,024 [6]    
Isagenix International, LLC        
Schedule of Investments [Line Items]        
Cost 2,784 [11] 2,374 [12]    
Fair value 2,655 [11] $ 2,301 [12]    
Island Pump and Tank, LLC        
Schedule of Investments [Line Items]        
Cost [5] 5,100      
Fair value [5] 5,100      
Jackmont Hospitality, Inc.        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.00%    
Cost 3,267 [5] $ 2,907 [6]    
Fair value 4,036 [5] 3,899 [6]    
JDC Power Services, LLC        
Schedule of Investments [Line Items]        
Cost [5] 51,338      
Fair value [5] 51,338      
Joerns Healthcare, LLC        
Schedule of Investments [Line Items]        
Cost 10,029 [11] 10,857 [12]    
Fair value 3,375 [11] $ 2,354 [12]    
JTI Electrical & Mechanical, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.00%    
Cost 48,422 [5] $ 40,282 [6]    
Fair value 46,349 [5] 40,847 [6]    
KMS, LLC        
Schedule of Investments [Line Items]        
Cost 8,342 [5] 8,367 [6]    
Fair value 7,942 [5] 7,725 [6]    
LL Management, Inc.        
Schedule of Investments [Line Items]        
Cost 29,211 [5] 27,678 [6]    
Fair value 29,533 [5] 27,759 [6]    
Mako Steel, LP        
Schedule of Investments [Line Items]        
Cost 18,988 [5] 14,886 [6]    
Fair value 19,226 [5] 15,049 [6]    
Microbe Formulas, LLC        
Schedule of Investments [Line Items]        
Cost 21,126 [5] 21,804 [6]    
Fair value 21,403 [5] 22,117 [6]    
Mini Melts of America, LLC        
Schedule of Investments [Line Items]        
Cost 12,430 [5] 10,047 [6]    
Fair value 12,708 [5] 10,047 [6]    
MonitorUS Holding, LLC        
Schedule of Investments [Line Items]        
Cost 32,643 [5],[7],[13] 31,783 [6],[9],[14]    
Fair value 33,365 [5],[7],[13] 32,993 [6],[9],[14]    
NinjaTrader, LLC        
Schedule of Investments [Line Items]        
Cost 28,312 [5] 27,335 [6]    
Fair value 28,598 [5] 27,681 [6]    
Obra Capital, Inc.        
Schedule of Investments [Line Items]        
Cost [5] 25,571      
Fair value [5] 25,571      
Power System Solutions        
Schedule of Investments [Line Items]        
Cost 25,055 [5] 19,000 [6]    
Fair value 26,548 [5] 19,414 [6]    
PrimeFlight Aviation Services        
Schedule of Investments [Line Items]        
Cost 10,009 [5] 8,488 [6]    
Fair value 10,244 [5] $ 8,720 [6]    
PTL US Bidco, Inc        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.25%    
Cost 26,240 [5],[7],[13] $ 28,969 [6],[9],[14]    
Fair value 26,562 [5],[7],[13] 29,261 [6],[9],[14]    
Purge Rite, LLC        
Schedule of Investments [Line Items]        
Cost 12,874 [5] 12,844 [6]    
Fair value 13,340 [5] $ 12,844 [6]    
RA Outdoors LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.75%    
Cost 14,572 [5] $ 14,096 [6]    
Fair value 14,008 [5] $ 13,284 [6]    
Richardson Sales Solutions        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.50%    
Cost 43,490 [5] $ 41,945 [6]    
Fair value 44,665 [5] 42,485 [6]    
Roof Opco, LLC        
Schedule of Investments [Line Items]        
Cost 6,639 [5] 6,648 [6]    
Fair value 6,696 [5] 6,580 [6]    
Rug Doctor, LLC.        
Schedule of Investments [Line Items]        
Cost 13,555 [5] 13,808 [6]    
Fair value 13,615 [5] 13,830 [6]    
South Coast Terminals Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 33,742 [5] 35,730 [6]    
Fair value 34,040 [5] 36,116 [6]    
SPAU Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 17,592 [5] 16,100 [6]    
Fair value 17,791 [5] 16,228 [6]    
Stellant Systems, Inc.        
Schedule of Investments [Line Items]        
Cost 16,791 [11] 16,192 [12]    
Fair value 17,141 [11] 16,504 [12]    
Titan Meter Midco Corp.        
Schedule of Investments [Line Items]        
Cost [5] 34,084      
Fair value [5] 34,518      
U.S. TelePacific Corp.        
Schedule of Investments [Line Items]        
Cost 3,648 [11] 3,605 [12]    
Fair value 4,025 [11] 3,333 [12]    
Veregy Consolidated, Inc.        
Schedule of Investments [Line Items]        
Cost 17,227 [11] 16,787 [12]    
Fair value 17,498 [11] 15,367 [12]    
Vitesse Systems        
Schedule of Investments [Line Items]        
Cost [5] 46,624      
Fair value [5] 47,372      
Wall Street Prep, Inc.        
Schedule of Investments [Line Items]        
Cost 3,782 [5] 4,081 [6]    
Fair value 4,291 [5] $ 4,450 [6]    
Watterson Brands, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.00%    
Cost 30,786 [5] $ 30,510 [6]    
Fair value 31,054 [5] $ 30,832 [6]    
West Star Aviation Acquisition, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.00%    
Cost 19,538 [5] $ 19,617 [6]    
Fair value 22,854 [5] $ 21,356 [6]    
Winter Services LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.00%    
Cost 16,673 [5] $ 13,427 [6]    
Fair value 16,720 [5] 13,589 [6]    
Xenon Arc, Inc.        
Schedule of Investments [Line Items]        
Cost 60,840 [5] 60,886 [6]    
Fair value 61,570 [5] $ 61,885 [6]    
Zips Car Wash, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   7.25%    
Cost 21,694 [5] $ 21,573 [6]    
Fair value 20,797 [5] 20,447 [6]    
ZRG Partners, LLC        
Schedule of Investments [Line Items]        
Cost [5] 52,673      
Fair value [5] 52,673      
Classic H&G Holdings, LLC        
Schedule of Investments [Line Items]        
Cost   29,544    
Fair value   39,834    
AMEREQUIP LLC        
Schedule of Investments [Line Items]        
Cost [6]   29,754    
Fair value [6]   $ 30,434    
Industrial Services Acquisition, LLC        
Schedule of Investments [Line Items]        
Spread (as a percent)   6.75%    
Cost [6]   $ 21,349    
Fair value [6]   21,422    
Infolinks Media Buyco, LLC        
Schedule of Investments [Line Items]        
Cost [6]   9,143    
Fair value [6]   9,256    
MB2 Dental Solutions, LLC        
Schedule of Investments [Line Items]        
Cost [12]   17,851    
Fair value [12]   $ 17,988    
Paragon Healthcare, Inc.        
Schedule of Investments [Line Items]        
Spread (as a percent)   5.75%    
Cost [6]   $ 21,321    
Fair value [6]   21,676    
RTIC Subsidiary Holdings, LLC        
Schedule of Investments [Line Items]        
Cost [6]   15,368    
Fair value [6]   15,044    
USA DeBusk LLC        
Schedule of Investments [Line Items]        
Cost [6]   36,280    
Fair value [6]   36,807    
Money Market Funds        
Schedule of Investments [Line Items]        
Cost 5,885 [1] 15,224 [2],[15]    
Fair value 5,885 [3] 15,224 [4],[15]    
Control investments        
Schedule of Investments [Line Items]        
Cost 1,484,861 [1],[16] 1,435,131 [2],[17]    
Fair value $ 2,075,429 [3],[16] $ 2,006,698 [4],[17] $ 1,883,699 $ 1,703,172
Investment owned, percent of net assets (as a percent) 80.40% 81.00%    
Affiliate investments        
Schedule of Investments [Line Items]        
Cost $ 679,571 [1],[18] $ 575,894 [2],[19]    
Fair value $ 752,764 [3],[18] $ 615,002 [4],[19] 563,125 618,359
Investment owned, percent of net assets (as a percent) 29.20% 24.80%    
Non‑Control/Non‑Affiliate investments        
Schedule of Investments [Line Items]        
Cost $ 1,949,642 [1],[20] $ 1,714,935 [2],[21]    
Fair value $ 1,909,318 [3],[20] $ 1,664,571 [4],[21]    
Investment owned, percent of net assets (as a percent) 74.00% 67.20%    
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 GRE-LP, L.P.)        
Schedule of Investments [Line Items]        
Fair value $ 441 $ 0    
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 HPP-MS, L.P.)        
Schedule of Investments [Line Items]        
Fair value 374 315 315 248
Investment, Identifier [Axis]: 2717 MH, L.P., LP Interests (2717 MH, L.P.)        
Schedule of Investments [Line Items]        
Fair value 8,991 6,050 6,346 7,552
Investment, Identifier [Axis]: 423 HAR, LP, LP Interests (423 HAR, L.P.)        
Schedule of Investments [Line Items]        
Fair value $ 1,048 $ 996 750 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 654,743 [11] 593,928 [12]    
Cost $ 3,148 [11] $ 3,148 [12]    
Fair value $ 0 [11] $ 0 [12] $ 0 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 18.00% [11] 18.00% [12] 18.00%  
PIK Rate 18.00% [11] 18.00% [12] 18.00%  
Principal $ 481 [11] $ 423 [12]    
Cost 477 [11] 419 [12]    
Fair value $ 476 [11] $ 418 [12] $ 360 0
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 18.00% [11] 18.00% [12] 18.00%  
PIK Rate 18.00% [11] 18.00% [12] 18.00%  
Principal $ 15,950 [11] $ 14,053 [12]    
Cost 15,890 [11] 13,970 [12]    
Fair value $ 15,770 [11] $ 13,895 [12] $ 12,141 11,550
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 574,598 [11],[22] 554,353 [12],[23]    
Cost $ 0 [11],[22] $ 0 [12],[23]    
Fair value $ 0 [11],[22] $ 0 [12],[23] 0 0
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 5.00% [5],[24],[25] 5.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (55) [5],[24],[25] (62) [6],[26],[27]    
Fair value $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.44% [5],[25],[28] 11.43% [6],[27]    
Spread (as a percent) 6.00% [5],[25],[28] 6.00% [6],[27]    
Principal $ 4,162 [5],[25],[28] $ 1,921 [6],[27]    
Cost 4,108 [5],[25],[28] 1,894 [6],[27]    
Fair value $ 4,162 [5],[25],[28] $ 1,921 [6],[27]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.44% [5],[25] 11.43% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
Principal $ 19,717 [5],[25] $ 19,817 [6],[27]    
Cost 19,258 [5],[25] 19,303 [6],[27]    
Fair value $ 19,717 [5],[25] $ 19,817 [6],[27]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 11.44% [5],[25] 11.43% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
Principal $ 1,366 [5],[25] $ 1,372 [6],[27]    
Cost 1,306 [5],[25] 1,305 [6],[27]    
Fair value $ 1,366 [5],[25] $ 1,372 [6],[27]    
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.25% [11],[25] 11.22% [12],[27]    
Spread (as a percent) 4.75% [11],[25] 5.75% [12],[27]    
Principal $ 6,404 [11],[25] $ 10,952 [12],[27]    
Cost 6,365 [11],[25] 10,856 [12],[27]    
Fair value $ 6,431 [11],[25] $ 10,860 [12],[27]    
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Fair value     0 9,400
Investment, Identifier [Axis]: AMEREQUIP LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 235 [5],[29] 235 [6],[30]    
Cost $ 1,844 [5],[29] $ 1,844 [6],[30]    
Fair value $ 1,920 [5],[29] $ 2,120 [6],[30]    
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [6],[26],[27]   7.40%    
Principal [6],[26],[27]   $ 0    
Cost [6],[26],[27]   (108)    
Fair value [6],[26],[27]   $ (108)    
Investment, Identifier [Axis]: AMEREQUIP LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.76%    
Spread (as a percent) [6],[27]   7.40%    
Principal [6],[27]   $ 28,422    
Cost [6],[27]   28,018    
Fair value [6],[27]   $ 28,422    
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 $ 40 $ 100 $ 510 800
Investment, Identifier [Axis]: ASC Interests, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 178 178    
Cost $ 178 $ 178    
Fair value $ 266 $ 266    
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 400 $ 400    
Cost 400 400    
Fair value $ 400 $ 400 $ 400 400
Investment, Identifier [Axis]: ASC Interests, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 1,650 $ 1,650    
Cost 1,650 1,649    
Fair value $ 1,598 $ 1,597 $ 1,597 1,649
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 720,000 [5] 720,000 [6]    
Cost $ 720 [5] $ 720 [6]    
Fair value $ 720 [5] $ 670 [6]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.06% [5],[25],[31] 12.16% [6],[27]    
Spread (as a percent) 6.50% [5],[25],[31] 6.50% [6],[27]    
Principal $ 756 [5],[25],[31] $ 360 [6],[27]    
Cost 756 [5],[25],[31] 360 [6],[27]    
Fair value $ 756 [5],[25],[31] $ 360 [6],[27]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.06% [5],[25] 11.16% [6],[27]    
Spread (as a percent) 5.50% [5],[25] 5.50% [6],[27]    
Principal $ 6,660 [5],[25] $ 6,660 [6],[27]    
Cost 6,660 [5],[25] 6,660 [6],[27]    
Fair value $ 6,660 [5],[25] $ 6,660 [6],[27]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.06% [5],[25] 13.16% [6],[27]    
Spread (as a percent) 7.50% [5],[25] 7.50% [6],[27]    
Principal $ 6,660 [5],[25] $ 6,660 [6],[27]    
Cost 6,660 [5],[25] 6,660 [6],[27]    
Fair value $ 6,660 [5],[25] $ 6,660 [6],[27]    
Investment, Identifier [Axis]: ATS Workholding, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 3,725,862 [5] 3,725,862 [6]    
Cost $ 3,726 [5] $ 3,726 [6]    
Fair value $ 0 [5] $ 0 [6] $ 0 0
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 5.00% [5],[32] 5.00% [6],[33] 5.00%  
Principal $ 2,257 [5],[32] $ 2,090 [6],[33]    
Cost 2,249 [5],[32] 2,080 [6],[33]    
Fair value $ 214 [5],[32] $ 328 [6],[33] $ 483 634
Investment, Identifier [Axis]: ATS Workholding, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 5.00% [5],[32] 5.00% [6],[33] 5.00%  
Principal $ 3,015 [5],[32] $ 3,015 [6],[33]    
Cost 2,841 [5],[32] 2,841 [6],[33]    
Fair value $ 285 [5],[32] $ 473 [6],[33] $ 719 1,005
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock        
Schedule of Investments [Line Items]        
Fair value     $ 0 3,270
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt        
Schedule of Investments [Line Items]        
Spread (as a percent)     7.50%  
Fair value     $ 0 6,343
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt        
Schedule of Investments [Line Items]        
Fair value     0 2,598
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 984 [5],[29] 984 [6],[30]    
Cost $ 965 [5],[29] $ 965 [6],[30]    
Fair value $ 892 [5],[29] $ 892 [6],[30]    
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.25% [5],[24],[25] 7.25% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (105) [5],[24],[25] (120) [6],[26],[27]    
Fair value $ (105) [5],[24],[25] $ (38) [6],[26],[27]    
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.74% [5],[25] 12.76% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 24,383 [5],[25] $ 24,602 [6],[27]    
Cost 23,699 [5],[25] 23,816 [6],[27]    
Fair value $ 24,378 [5],[25] $ 24,080 [6],[27]    
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[24],[25] 7.50% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (1) [5],[24],[25] (2) [6],[26],[27]    
Fair value $ (1) [5],[24],[25] $ (2) [6],[26],[27]    
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.44% [5],[25] 12.98% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.50% [6],[27]    
Principal $ 24,482 [5],[25] $ 24,796 [6],[27]    
Cost 24,243 [5],[25] 24,526 [6],[27]    
Fair value $ 24,482 [5],[25] $ 24,796 [6],[27]    
Investment, Identifier [Axis]: Acumera, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 17,525 [5],[34] 17,525 [6],[35]    
Cost $ 0 [5],[34] $ 0 [6],[35]    
Fair value $ 110 [5],[34] $ 110 [6],[35]    
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.00% [5],[25],[36] 11.00% [6],[27],[37]    
Spread (as a percent) 7.00% [5],[25],[36] 7.00% [6],[27],[37]    
PIK Rate 1.00% [5],[25],[36] 1.00% [6],[27],[37]    
Principal $ 7,880 [5],[25],[36] $ 7,841 [6],[27],[37]    
Cost 7,880 [5],[25],[36] 7,841 [6],[27],[37]    
Fair value $ 7,582 [5],[25],[36] $ 7,684 [6],[27],[37]    
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.00% [5],[25],[36] 11.00% [6],[27],[37]    
Spread (as a percent) 7.00% [5],[25],[36] 7.00% [6],[27],[37]    
PIK Rate 1.00% [5],[25],[36] 1.00% [6],[27],[37]    
Principal $ 20,033 [5],[25],[36] $ 21,207 [6],[27],[37]    
Cost 20,000 [5],[25],[36] 21,168 [6],[27],[37]    
Fair value $ 19,253 [5],[25],[36] $ 20,784 [6],[27],[37]    
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 5.00% [5],[24],[25] 5.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (6) [5],[24],[25] (8) [6],[26],[27]    
Fair value $ (6) [5],[24],[25] $ (8) [6],[26],[27]    
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.61% [5],[25] 13.50% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 5.00% [6],[27]    
Principal $ 6,517 [5],[25] $ 6,550 [6],[27]    
Cost 6,485 [5],[25] 6,512 [6],[27]    
Fair value $ 6,517 [5],[25] $ 6,550 [6],[27]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.20% [5],[25] 15.29% [6],[27]    
Spread (as a percent) 9.75% [5],[25] 9.75% [6],[27]    
PIK Rate 15.20% [5],[25] 15.29% [6],[27]    
Principal $ 6,977 [5],[25] $ 6,462 [6],[27]    
Cost 6,938 [5],[25] 6,413 [6],[27]    
Fair value $ 5,787 [5],[25] $ 5,495 [6],[27]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.20% [5],[25] 15.29% [6],[27]    
Spread (as a percent) 9.75% [5],[25] 9.75% [6],[27]    
PIK Rate 15.20% [5],[25] 15.29% [6],[27]    
Principal $ 11,351 [5],[25] $ 10,507 [6],[27]    
Cost 11,279 [5],[25] 10,413 [6],[27]    
Fair value $ 9,416 [5],[25] $ 8,922 [6],[27]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 17.20% [5],[25],[32] 17.29% [6],[27],[33]    
Spread (as a percent) 11.75% [5],[25],[32] 11.75% [6],[27],[33]    
PIK Rate 17.20% [5],[25],[32] 17.29% [6],[27],[33]    
Principal $ 5,705 [5],[25],[32] $ 5,705 [6],[27],[33]    
Cost 5,645 [5],[25],[32] 5,645 [6],[27],[33]    
Fair value $ 3,526 [5],[25],[32] $ 3,369 [6],[27],[33]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 17.20% [5],[25],[32] 17.29% [6],[27],[33]    
Spread (as a percent) 11.75% [5],[25],[32] 11.75% [6],[27],[33]    
PIK Rate 17.20% [5],[25],[32] 17.29% [6],[27],[33]    
Principal $ 9,283 [5],[25],[32] $ 9,283 [6],[27],[33]    
Cost 9,169 [5],[25],[32] 9,169 [6],[27],[33]    
Fair value 5,736 [5],[25],[32] 5,482 [6],[27],[33]    
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 3,166 [11],[32],[38] 2,980 [12],[33],[39]    
Cost 2,989 [11],[32],[38] 2,980 [12],[33],[39]    
Fair value 76 [11],[32],[38] 134 [12],[33],[39]    
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2        
Schedule of Investments [Line Items]        
Principal 15,489 [11],[32],[38] 14,370 [12],[33],[39]    
Cost 13,757 [11],[32],[38] 13,706 [12],[33],[39]    
Fair value 374 [11],[32],[38] 647 [12],[33],[39]    
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 (60,384) 0 14,914
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 $ 60,384 $ 0 (14,914)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 2,427 2,427    
Total Rate     14.13%  
Cost $ 2,427 $ 2,427    
Fair value $ 5,620 4,860 $ 0 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1.1        
Schedule of Investments [Line Items]        
Total Rate 14.13%      
Fair value $ 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 $ 4,070 3,504
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2.1        
Schedule of Investments [Line Items]        
Fair value $ 5,620 $ 4,860    
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.38% [25] 15.38% [27]    
Spread (as a percent) 10.00% [25] 10.00% [27] 10.00%  
Principal $ 220 [25] $ 220 [27]    
Cost 220 [25] 219 [27]    
Fair value $ 220 [25] $ 219 [27] $ (2) (3)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.38% [25] 15.38% [27] 15.25%  
Spread (as a percent) 10.00% [25] 10.00% [27] 10.00%  
Principal $ 3,930 [25] $ 4,125 [27]    
Cost 3,923 [25] 4,084 [27]    
Fair value $ 3,923 [25] $ 4,084 [27] $ 4,444 4,545
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 420 [22] 420 [23]    
Cost $ 316 [22] $ 316 [23]    
Fair value $ 0 [22] $ 0 [23] 0 0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,898 [5] 3,898 [6]    
Cost $ 234 [5] $ 234 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 1        
Schedule of Investments [Line Items]        
Units (in shares) 32,507 [5] 32,507 [6]    
Cost $ 14,060 [5] $ 14,060 [6]    
Fair value $ 12,552 [5] $ 14,060 [6]    
Investment, Identifier [Axis]: ArborWorks, LLC, Preferred Equity 2        
Schedule of Investments [Line Items]        
Units (in shares) 32,507 [5] 32,507 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.00% [5],[25] 15.00% [6]    
PIK Rate 15.00% [5],[25] 15.00% [6]    
Principal $ 3,817 [5],[25] $ 1,907 [6]    
Cost 3,817 [5],[25] 1,907 [6]    
Fair value $ 3,817 [5],[25] $ 1,907 [6]    
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.99% [5],[25] 12.04% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
PIK Rate 11.99% [5],[25] 12.04% [6],[27]    
Principal $ 7,592 [5],[25] $ 7,149 [6],[27]    
Cost 7,592 [5],[25] 7,149 [6],[27]    
Fair value $ 7,592 [5],[25] $ 7,149 [6],[27]    
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,387,832 [5] 1,387,832 [6]    
Cost $ 1,388 [5] $ 1,388 [6]    
Fair value $ 2,210 [5] $ 2,230 [6]    
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units        
Schedule of Investments [Line Items]        
Fair value     $ 0 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)        
Schedule of Investments [Line Items]        
Total Rate     15.00%  
Fair value     $ 0 0
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1        
Schedule of Investments [Line Items]        
Total Rate     16.17%  
Spread (as a percent)     11.00%  
Fair value     $ 800 800
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2        
Schedule of Investments [Line Items]        
Total Rate     16.17%  
Spread (as a percent)     11.00%  
Fair value     $ 2,202 2,086
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 2,333,333      
Cost [5] $ 2,333      
Fair value [5] $ 2,333      
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.44%      
Spread (as a percent) [5],[25] 6.00%      
Principal [5],[25] $ 1,648      
Cost [5],[25] 1,599      
Fair value [5],[25] $ 1,632      
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.00%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (25)      
Fair value [5],[24],[25] $ (25)      
Investment, Identifier [Axis]: BP Loenbro Holdings Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.43%      
Spread (as a percent) [5],[25] 6.00%      
Principal [5],[25] $ 26,506      
Cost [5],[25] 26,019      
Fair value [5],[25] $ 26,241      
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 37 [5],[29] 37 [6]    
Cost $ 1,584 [5],[29] $ 1,584 [6]    
Fair value $ 4,720 [5],[29] $ 4,140 [6] $ 3,040 3,320
Investment, Identifier [Axis]: Barfly Ventures, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 7.00% [5] 7.00% [6] 7.00%  
Principal $ 711 [5] $ 711 [6]    
Cost 711 [5] 711 [6]    
Fair value $ 711 [5] $ 711 [6] $ 711 711
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 4,073 [29] 4,073 [30]    
Cost $ 4,095 [29] $ 4,095 [30]    
Fair value $ 5,720 [29] 6,150 [30] 6,150 4,095
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Principal $ 450 0 [26]    
Cost 445 (6) [26]    
Fair value $ 445 $ 0 [26] 0 (8)
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00%    
Principal $ 270 $ 270    
Cost 270 270    
Fair value $ 270 $ 270 $ 0 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 10,575 $ 10,575    
Cost 10,518 10,508    
Fair value $ 10,518 $ 10,575 $ 10,575 10,933
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 286,109 [5] 122,416 [6],[40]    
Cost $ 286 [5] $ 0 [6],[40]    
Fair value $ 878 [5] $ 200 [6],[40]    
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 122,416 [5],[41] 1,548,387 [6],[30],[40]    
Cost $ 0 [5],[41] $ 0 [6],[30],[40]    
Fair value $ 10 [5],[41] $ 2,560 [6],[30],[40]    
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 3        
Schedule of Investments [Line Items]        
Units (in shares) [5],[41] 1,548,387      
Cost [5],[41] $ 0      
Fair value [5],[41] $ 110      
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 10.25% [5],[24],[25] 7.25% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (55) [5],[24],[25] (62) [6],[26],[27]    
Fair value $ (55) [5],[24],[25] $ (62) [6],[26],[27]    
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.60% [5],[25] 12.64% [6],[27]    
Spread (as a percent) 10.25% [5],[25] 7.25% [6],[27]    
PIK Rate 9.25% [5],[25] 6.25% [6],[27]    
Principal $ 30,342 [5],[25] $ 29,403 [6],[27]    
Cost 29,989 [5],[25] 29,006 [6],[27]    
Fair value $ 28,880 [5],[25] $ 27,550 [6],[27]    
Investment, Identifier [Axis]: Binswanger Enterprises, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,050,000 [5] 1,050,000 [6]    
Cost $ 1,050 [5] $ 1,050 [6]    
Fair value $ 580 [5] $ 120 [6]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 723,184 [11] 723,184 [12]    
Cost $ 1 [11] $ 1 [12]    
Fair value $ 0 [11] $ 550 [12]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.94% [11] 16.00% [12],[27]    
Spread (as a percent) 8.50% [11] 7.50% [12],[27]    
PIK Rate 12.94% [11] 15.00% [12],[27]    
Principal $ 180 [11] $ 1,885 [12],[27]    
Cost 55 [11] 1,885 [12],[27]    
Fair value $ 164 [11] $ 1,767 [12],[27]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.00% [11],[25] 13.96% [12],[27]    
Spread (as a percent) 7.50% [11],[25] 8.50% [12],[27]    
PIK Rate 15.00% [11],[25] 12.96% [12],[27]    
Principal $ 2,828 [11],[25] $ 3,676 [12],[27]    
Cost 2,828 [11],[25] 3,076 [12],[27]    
Fair value $ 2,588 [11],[25] $ 3,446 [12],[27]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [11],[25] 13.94%      
Spread (as a percent) [11],[25] 8.50%      
PIK Rate [11],[25] 12.94%      
Principal [11],[25] $ 3,923      
Cost [11],[25] 3,504      
Fair value [11],[25] $ 3,589      
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 163,295 [11],[22] 163,295 [12],[23]    
Cost $ 1,036 [11],[22] $ 1,036 [12],[23]    
Fair value $ 0 [11],[22] $ 120 [12],[23]    
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,160,000 [29] 2,160,000    
Cost $ 2,256 [29] $ 2,256    
Fair value $ 310 [29] $ 1,990 $ 2,350 2,970
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 320 $ 320    
Cost 320 320    
Fair value $ 265 $ 320 $ 320 320
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Class B Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 140,000 [29] 140,000 [30]    
Total Rate 8.00% [29] 8.00% [30] 8.00%  
Cost $ 14,000 [29] $ 14,000 [30]    
Fair value $ 34,710 [29] $ 31,020 [30] $ 31,120 31,420
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.43% 14.48% [27],[42]    
Spread (as a percent) 8.05% 9.11% [27],[42]    
Principal [27],[42]   $ 96,556    
Cost [27],[42]   96,078    
Fair value $ 102,836 96,556 [27],[42]    
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal [24] 0      
Cost [24] 0      
Fair value $ 0 [24]   $ 0 0
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.43% [25],[43]   14.37%  
Spread (as a percent) 8.05% [25],[43]   9.19%  
Principal [25],[43] $ 102,836      
Cost [25],[43] 102,385      
Fair value 102,836 [25],[43]   $ 97,875 99,194
Investment, Identifier [Axis]: Bolder Panther Group, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 571 [5],[7],[13] 571 [6],[9],[14]    
Cost $ 0 [5],[7],[13] $ 0 [6],[9],[14]    
Fair value $ 0 [5],[7],[13] $ 0 [6],[9],[14]    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 571 [5],[7],[13] 571 [6],[9],[14]    
Cost $ 571 [5],[7],[13] $ 571 [6],[9],[14]    
Fair value $ 500 [5],[7],[13] $ 500 [6],[9],[14]    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[7],[13],[24],[25] 7.00% [6],[9],[14],[26],[27]    
Principal $ 0 [5],[7],[13],[24],[25] $ 0 [6],[9],[14],[26],[27]    
Cost (22) [5],[7],[13],[24],[25] (25) [6],[9],[14],[26],[27]    
Fair value $ (22) [5],[7],[13],[24],[25] $ (25) [6],[9],[14],[26],[27]    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.45% [5],[7],[13],[25] 11.54% [6],[9],[14],[27]    
Spread (as a percent) 6.00% [5],[7],[13],[25] 6.00% [6],[9],[14],[27]    
Principal $ 6,357 [5],[7],[13],[25] $ 6,405 [6],[9],[14],[27]    
Cost 6,259 [5],[7],[13],[25] 6,294 [6],[9],[14],[27]    
Fair value $ 6,357 [5],[7],[13],[25] $ 6,405 [6],[9],[14],[27]    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.45% [5],[7],[13],[25] 13.54% [6],[9],[14],[27]    
Spread (as a percent) 8.00% [5],[7],[13],[25] 8.00% [6],[9],[14],[27]    
Principal $ 6,357 [5],[7],[13],[25] $ 6,405 [6],[9],[14],[27]    
Cost 6,259 [5],[7],[13],[25] 6,294 [6],[9],[14],[27]    
Fair value $ 6,357 [5],[7],[13],[25] $ 6,405 [6],[9],[14],[27]    
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.75% [5],[25],[32],[38] 15.75% [6],[27],[33],[39]    
Spread (as a percent) 7.25% [5],[25],[32],[38] 7.25% [6],[27],[33],[39]    
Principal $ 761 [5],[25],[32],[38] $ 761 [6],[27],[33],[39]    
Cost 761 [5],[25],[32],[38] 761 [6],[27],[33],[39]    
Fair value $ 761 [5],[25],[32],[38] $ 761 [6],[27],[33],[39]    
Investment, Identifier [Axis]: Brainworks Software, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.75% [5],[25],[32],[38] 15.75% [6],[27],[33],[39]    
Spread (as a percent) 7.25% [5],[25],[32],[38] 7.25% [6],[27],[33],[39]    
Principal $ 7,056 [5],[25],[32],[38] $ 7,056 [6],[27],[33],[39]    
Cost 7,056 [5],[25],[32],[38] 7,056 [6],[27],[33],[39]    
Fair value $ 750 [5],[25],[32],[38] $ 1,075 [6],[27],[33],[39]    
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,950 [29] 2,950 [30]    
Cost $ 4,280 [29] $ 4,280 [30]    
Fair value $ 5,300 [29] $ 5,620 [30] $ 6,360 7,080
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.48% [25] 15.46% [27] 15.17%  
Spread (as a percent) 10.00% [25] 10.00% [27] 10.00%  
Principal $ 5,264 [25] $ 5,498 [27]    
Cost 5,264 [25] 5,498 [27]    
Fair value $ 5,264 [25] $ 5,498 [27] $ 5,653 5,964
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 17,742 [29],[41] 17,742 [30],[40]    
Cost $ 1,000 [29],[41] $ 1,000 [30],[40]    
Fair value $ 1,000 [29],[41] $ 1,000 [30],[40] $ 1,000 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 8,813 $ 8,813    
Cost 8,813 8,813    
Fair value $ 8,813 $ 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% 13.00%  
Principal $ 1,000 $ 1,000    
Cost 1,000 1,000    
Fair value $ 1,000 $ 1,000 $ 1,000 1,000
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 82 [22] 82 [23]    
Cost $ 2,132 [22] $ 2,132 [23]    
Fair value 4,230 [22] 4,290 [23]    
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 1        
Schedule of Investments [Line Items]        
Fair value 1,783 1,808 1,874 1,828
Investment, Identifier [Axis]: Bridge Capital Solutions Corporation, Warrants 2        
Schedule of Investments [Line Items]        
Fair value $ 2,447 $ 2,482 $ 2,576 2,512
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 1.59% [7],[8],[44] 1.55% [9],[10],[45]    
Cost $ 5,870 [7],[8],[44] $ 6,527 [9],[10],[45]    
Fair value $ 3,614 [7],[8],[44] $ 4,080 [9],[10],[45]    
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% [7],[8],[29],[44] 0.59% [9],[10],[30],[45]    
Cost $ 4,300 [7],[8],[29],[44] $ 4,350 [9],[10],[30],[45]    
Fair value $ 4,308 [7],[8],[29],[44] $ 4,358 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund V, LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 0.72% [7],[8],[29],[44] 0.82% [9],[10],[30],[45]    
Cost $ 2,500 [7],[8],[29],[44] $ 2,000 [9],[10],[30],[45]    
Fair value $ 2,711 [7],[8],[29],[44] $ 2,448 [9],[10],[30],[45]    
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% 6.00%  
PIK Rate 6.00% 6.00% 6.00%  
Cost $ 4,770 $ 4,770    
Fair value $ 0 $ 0 $ 0 0
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   12.00% [39] 12.00%  
Principal [39]   $ 16,980    
Cost [39]   16,980    
Fair value   12,144 [39] $ 11,964 12,337
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 14.00%      
PIK Rate 14.00%      
Principal $ 58      
Cost 58      
Fair value $ 58      
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 1.1        
Schedule of Investments [Line Items]        
Total Rate 14.00%      
PIK Rate 14.00%      
Fair value $ 12,515 12,144    
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [32],[38] 14.00%      
PIK Rate [32],[38] 14.00%      
Principal [32],[38] $ 20,080      
Cost [32],[38] 17,352      
Fair value [32],[38] $ 12,515      
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 14.00%      
PIK Rate 14.00%      
Fair value $ 58 $ 0    
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   10.46%    
Spread (as a percent) 5.00% [5],[24],[25] 5.00% [6],[27]    
Principal $ 0 [5],[24],[25] $ 465 [6],[27]    
Cost (16) [5],[24],[25] 445 [6],[27]    
Fair value $ 0 [5],[24],[25] $ 465 [6],[27]    
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.44% [5],[25] 10.46% [6],[27]    
Spread (as a percent) 5.00% [5],[25] 5.00% [6],[27]    
Principal $ 19,885 [5],[25] $ 19,681 [6],[27]    
Cost 19,684 [5],[25] 19,455 [6],[27]    
Fair value $ 19,885 [5],[25] $ 19,681 [6],[27]    
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1        
Schedule of Investments [Line Items]        
Units (in shares) 2,142,167 1,788,527    
Cost $ 2,142 $ 1,789    
Fair value $ 2,227 $ 1,789    
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 [29] 416 [30]    
Cost $ 1,300 [29] $ 1,300 [30]    
Fair value $ 49,540 [29] $ 50,130 [30] 50,570 49,002
Investment, Identifier [Axis]: CMS Minerals Investments, Member Units        
Schedule of Investments [Line Items]        
Fair value     0 1,670
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[24],[25] 7.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (57) [5],[24],[25] (66) [6],[26],[27]    
Fair value $ (57) [5],[24],[25] $ (66) [6],[26],[27]    
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[24],[25] 7.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (57) [5],[24],[25] (66) [6],[26],[27]    
Fair value $ (57) [5],[24],[25] $ (66) [6],[26],[27]    
Investment, Identifier [Axis]: CQ Fluency, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.44% [5],[25] 12.45% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 11,109 [5],[25] $ 11,250 [6],[27]    
Cost 10,829 [5],[25] 10,920 [6],[27]    
Fair value $ 11,001 [5],[25] $ 10,920 [6],[27]    
Investment, Identifier [Axis]: Café Brazil, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,233 [29] 1,233 [30]    
Cost $ 1,742 [29] $ 1,742 [30]    
Fair value $ 1,790 [29] $ 1,980 [30] 2,130 2,210
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 8,671 [29] 3,671 [30]    
Total Rate 15.00% [29] 15.00% [30]    
PIK Rate 15.00% [29] 15.00% [30]    
Cost $ 10,173 [29] $ 4,601 [30]    
Fair value 10,173 [29] 4,601 [30] $ 23,435 25,495
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 1.1        
Schedule of Investments [Line Items]        
Fair value $ 15,695 $ 15,695    
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 6,157 [29] 6,157 [30]    
Total Rate     15.00%  
PIK Rate     15.00%  
Cost $ 10,775 [29] $ 10,775 [30]    
Fair value $ 15,695 [29] 15,695 [30] $ 4,295 3,994
Investment, Identifier [Axis]: California Splendor Holdings LLC, Preferred Member Units 2.1        
Schedule of Investments [Line Items]        
Total Rate 15.00%      
PIK Rate 15.00%      
Fair value $ 10,173 $ 4,601    
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.00% 15.69% [27],[30] 15.25%  
Spread (as a percent)   10.00% [27],[30] 10.00%  
PIK Rate 4.00%      
Principal [27],[30]   $ 28,000    
Cost [27],[30]   27,965    
Fair value $ 27,875 $ 27,655 [27],[30] $ 28,000 28,000
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal [24] 0      
Cost [24] 0      
Fair value [24] $ 0      
Investment, Identifier [Axis]: California Splendor Holdings LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.00%      
PIK Rate 4.00%      
Principal $ 28,336      
Cost 28,263      
Fair value $ 27,875      
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 4,500
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.38% [25] 11.38% [27] 11.25%  
Spread (as a percent) 6.00% [25] 6.00% [27] 6.00%  
Principal $ 900 [25] $ 900 [27]    
Cost 884 [25] 881 [27]    
Fair value $ 884 [25] $ 881 [27] $ 442 (9)
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 12.50%  
Principal $ 19,845 $ 20,025    
Cost 19,747 19,906    
Fair value $ 19,747 $ 19,906 $ 20,110 20,090
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 245,926 [5] 245,926 [6]    
Cost $ 246 [5] $ 246 [6]    
Fair value $ 490 [5] $ 246 [6]    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [6],[26],[27]   6.00%    
Principal [6],[26],[27]   $ 0    
Cost [6],[26],[27]   (8)    
Fair value [6],[26],[27]   $ (8)    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.61%    
Spread (as a percent) [6],[27]   6.00%    
Principal [6],[27]   $ 7,933    
Cost [6],[27]   7,872    
Fair value [6],[27]   $ 7,933    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.61%    
Spread (as a percent) [6],[27]   6.00%    
Principal [6],[27]   $ 6,102    
Cost [6],[27]   6,061    
Fair value [6],[27]   $ 6,102    
Investment, Identifier [Axis]: Central Moloney, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.08%      
Spread (as a percent) [5],[25] 6.75%      
Principal [5],[25] $ 39,801      
Cost [5],[25] 39,067      
Fair value [5],[25] $ 39,404      
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 $ 11,500 $ 11,040 $ 10,400 8,700
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 10.00% [24],[25] 9.00% [26],[27] 9.00%  
Principal $ 0 [24],[25] $ 0 [26],[27]    
Cost 0 [24],[25] 0 [26],[27]    
Fair value $ 0 [24],[25] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.48% [25] 14.48% [27] 14.25%  
Spread (as a percent) 10.00% [25] 9.00% [27] 9.00%  
Principal $ 20,462 [25] $ 17,574 [27]    
Cost 20,239 [25] 17,512 [27]    
Fair value $ 20,462 [25] 17,574 [27] $ 15,030 14,954
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 15.48%      
Spread (as a percent) 10.00%      
Fair value $ 20,462 0    
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 17,574    
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 4,347 [29] 4,347 [30]    
Cost $ 11,440 [29] $ 11,440 [30]    
Fair value $ 30,030 [29] $ 29,320 [30] 23,940 22,920
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 1,047,146 [29],[41] 1,047,146 [30],[40]    
Cost $ 1,773 [29],[41] $ 1,773 [30],[40]    
Fair value $ 3,150 [29],[41] $ 2,860 [30],[40] $ 2,830 2,710
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.00% [24],[25] 6.00% [26],[27] 6.00%  
Principal $ 0 [24],[25] $ 0 [26],[27]    
Cost (150) [24],[25] (195) [26],[27]    
Fair value $ 0 [24],[25] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.49% [25] 13.49% [27] 13.36%  
Spread (as a percent) 8.00% [25] 8.00% [27] 8.00%  
Principal $ 15,620 [25] $ 15,620 [27]    
Cost 15,618 [25] 15,617 [27]    
Fair value $ 15,620 [25] $ 15,620 [27] $ 16,407 16,945
Investment, Identifier [Axis]: Chandler Signs Holdings, LLC, Class A Units        
Schedule of Investments [Line Items]        
Fair value     0 1,790
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.58% [5],[25],[31] 12.60% [6],[27],[46]    
Spread (as a percent) 7.00% [5],[25],[31] 7.00% [6],[27],[46]    
Principal $ 4,661 [5],[25],[31] $ 2,071 [6],[27],[46]    
Cost 4,518 [5],[25],[31] 1,901 [6],[27],[46]    
Fair value $ 4,394 [5],[25],[31] $ 1,988 [6],[27],[46]    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.55% [5],[25] 12.66% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 36,354 [5],[25] $ 36,540 [6],[27]    
Cost 35,966 [5],[25] 36,077 [6],[27]    
Fair value $ 34,272 [5],[25] $ 35,064 [6],[27]    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.55% [5],[25] 12.66% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 2,014 [5],[25] $ 2,024 [6],[27]    
Cost 1,993 [5],[25] 1,999 [6],[27]    
Fair value $ 1,899 [5],[25] $ 1,943 [6],[27]    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 12.55% [5],[25] 12.66% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 4,868 [5],[25] $ 4,893 [6],[27]    
Cost 4,783 [5],[25] 4,792 [6],[27]    
Fair value $ 4,589 [5],[25] $ 4,695 [6],[27]    
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,829 [29] 1,829 [30]    
Cost $ 1,963 [29] $ 1,963 [30]    
Fair value $ 15,580 [29] $ 15,690 [30] $ 13,800 13,340
Investment, Identifier [Axis]: Charps, LLC, Unsecured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 5,694 $ 5,694    
Cost 4,922 4,678    
Fair value $ 5,694 $ 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 [29] 717 [30]    
Cost $ 7,280 [29] $ 7,280 [30]    
Fair value $ 6,210 [29] $ 5,200 [30] 6,380 8,220
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 800 [41] 800 [40]    
Cost $ 509 [41] $ 509 [40]    
Fair value 950 [41] 1,129 [40] 1,129 610
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost 0 [24] 0 [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.50% 11.50% 11.50%  
Principal $ 7,960 $ 8,560    
Cost 7,938 8,560    
Fair value $ 7,801 $ 8,422 $ 9,634 10,440
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 993 $ 1,013    
Cost 985 1,004    
Fair value 985 1,004 $ 1,022 1,039
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Principal 2,677 [5],[32],[38] 2,677 [6],[33],[39]    
Cost 2,677 [5],[32],[38] 2,677 [6],[33],[39]    
Fair value $ 16 [5],[32],[38] $ 16 [6],[33],[39]    
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 154 [29] 154 [30]    
Cost $ 0 [29] $ 5,760 [30]    
Fair value $ 2,469 [29] $ 16,000 [30] $ 18,230 24,637
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   11.69% [27] 11.25%  
Spread (as a percent) 6.00% 6.00% [27] 6.00%  
Principal [27]   $ 4,560    
Cost [27]   4,560    
Fair value $ 0 $ 4,560 [27] $ 4,560 4,560
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    
Cost   19,224    
Fair value $ 0 $ 19,274 $ 19,274 19,274
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 587 [29],[41] 587 [30],[40]    
Cost $ 8,317 [29],[41] $ 8,317 [30],[40]    
Fair value 74,480 [29],[41] 72,470 [30],[40] 65,120 58,180
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost (15) [24] (11) [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.50% 12.50%  
Principal $ 40,801 $ 42,073    
Cost 40,775 42,042    
Fair value $ 40,801 $ 42,073 $ 46,312 0
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Spread (as a percent)     10.50%  
Fair value     $ 0 1,462
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4        
Schedule of Investments [Line Items]        
Spread (as a percent)     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) [29] 17,280      
Cost [29] $ 7,680      
Fair value [29] 11,740      
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares)   960    
Cost   $ 960    
Fair value 0 $ 2,400 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 11,740 7,680 7,680 9,160
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost 0 [24] 0 [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 18,140 $ 22,050    
Cost 18,073 21,946    
Fair value $ 18,140 $ 21,627 $ 22,049 23,151
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,975 [29] 1,975 [30]    
Cost $ 1,975 [29] $ 1,975 [30]    
Fair value $ 12,930 [29] $ 14,450 [30] $ 16,380 19,830
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [25] 14.48%      
Spread (as a percent) [25] 9.00%      
Principal [25] $ 3,162      
Cost [25] 3,097      
Fair value [25] $ 3,097      
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 9.00% 9.00% [26],[27],[39] 9.00%  
Principal [26],[27],[39]   $ 0    
Cost [26],[27],[39]   0    
Fair value $ 0 $ 0 [26],[27],[39] $ 0 0
Investment, Identifier [Axis]: CompareNetworks Topco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.48% 14.48% [27] 14.25%  
Spread (as a percent) 9.00% 9.00% [27] 9.00%  
Principal [27]   $ 3,454    
Cost [27]   3,454    
Fair value $ 3,097 $ 3,454 [27] $ 4,869 5,241
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 7,454 7,454    
Cost $ 7,454 $ 7,454    
Fair value $ 7,950 7,454    
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.50%      
Principal $ 1,600 0 [26]    
Cost 1,584 0 [26]    
Fair value $ 1,584 $ 0 [26]    
Investment, Identifier [Axis]: Compass Systems & Sales, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.50% 13.50%    
Principal $ 17,200 $ 17,200    
Cost 17,051 17,034    
Fair value $ 17,051 $ 17,034    
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.47% [5],[25],[31] 13.52% [6],[27],[47]    
Spread (as a percent) 8.00% [5],[25],[31] 8.00% [6],[27],[47]    
Principal $ 6,000 [5],[25],[31] $ 5,000 [6],[27],[47]    
Cost 5,891 [5],[25],[31] 4,948 [6],[27],[47]    
Fair value $ 5,911 [5],[25],[31] $ 4,848 [6],[27],[47]    
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   13.52%    
Spread (as a percent) 8.00% [5],[24],[25] 8.00% [6],[27]    
Principal $ 0 [5],[24],[25] $ 18,313 [6],[27]    
Cost (149) [5],[24],[25] 18,119 [6],[27]    
Fair value $ (149) [5],[24],[25] $ 17,757 [6],[27]    
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 13.47%      
Spread (as a percent) [5],[25] 8.00%      
Principal [5],[25] $ 18,175      
Cost [5],[25] 18,019      
Fair value [5],[25] $ 17,906      
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% [7],[8],[29],[44] 12.49% [9],[10],[30],[45]    
Cost $ 3,019 [7],[8],[29],[44] $ 4,778 [9],[10],[30],[45]    
Fair value 2,542 [7],[8],[29],[44] 4,352 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Congruent Credit Opportunities Funds, LP Interests (Congruent Credit Opportunities Fund III, LP)        
Schedule of Investments [Line Items]        
Fair value $ 2,542 $ 4,352 5,562 7,657
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 861,618 [5] 861,618 [6]    
Cost $ 3,335 [5] $ 3,335 [6]    
Fair value $ 22,430 [5] $ 23,135 [6]    
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 38.75% [7],[8],[29],[44] 38.75% [9],[10],[30],[45]    
Cost $ 568 [7],[8],[29],[44] $ 568 [9],[10],[30],[45]    
Fair value $ 568 [7],[8],[29],[44] $ 568 [9],[10],[30],[45] 588 588
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[13],[25] 6.50%      
Principal [5],[13],[25] $ 477      
Cost [5],[13],[25] 389      
Fair value [5],[13],[25] $ 389      
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[13],[25] 11.83%      
Spread (as a percent) [5],[13],[25] 6.50%      
Principal [5],[13],[25] $ 10,731      
Cost [5],[13],[25] 10,476      
Fair value [5],[13],[25] $ 10,476      
Investment, Identifier [Axis]: Coregistics Buyer LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[13],[25] 12.01%      
Spread (as a percent) [5],[13],[25] 6.75%      
Principal [5],[13],[25] $ 32,192      
Cost [5],[13],[25] 31,392      
Fair value [5],[13],[25] $ 31,392      
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 5.75%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (302)      
Fair value [5],[24],[25] $ (302)      
Investment, Identifier [Axis]: Creative Foam Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.09%      
Spread (as a percent) [5],[25] 5.75%      
Principal [5],[25] $ 107,625      
Cost [5],[25] 105,508      
Fair value [5],[25] $ 105,508      
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 556 [29] 556    
Cost $ 15,000 [29] $ 15,000    
Fair value 16,020 [29] 15,000 15,000 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost 0 [24] 0 [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Cybermedia Technologies, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 27,663 $ 28,638    
Cost 27,449 28,389    
Fair value $ 27,449 $ 28,389 $ 28,720 0
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 9,012 5,944    
Cost $ 9,012 $ 5,944    
Fair value $ 9,012 $ 7,660 $ 7,260 7,260
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   12.00% 12.00%  
Principal   $ 18,800    
Cost   18,685    
Fair value   18,800 $ 20,000 21,200
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
Principal $ 560      
Cost 554      
Fair value $ 560      
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 1.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
Fair value $ 16,800 18,800    
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
Principal $ 16,800      
Cost 16,713      
Fair value $ 16,800      
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
Fair value $ 560 $ 0    
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class A Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 776,316 [5] 776,316 [6]    
Total Rate 8.00% [5] 8.00% [6]    
PIK Rate 8.00% [5] 8.00% [6]    
Cost $ 776 [5] $ 776 [6]    
Fair value $ 0 [5] $ 260 [6]    
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)        
Schedule of Investments [Line Items]        
Total Rate 10.00% [5],[29] 10.00% [6],[30]    
PIK Rate 10.00% [5],[29] 10.00% [6],[30]    
Cost $ 1,316 [5],[29] $ 1,284 [6],[30]    
Fair value $ 855 [5],[29] $ 1,284 [6],[30]    
Investment, Identifier [Axis]: Dalton US Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 515 [5] 515 [6]    
Cost $ 720 [5] $ 720 [6]    
Fair value $ 830 [5] $ 830 [6]    
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 9,000 9,000    
Cost $ 2,610 $ 2,610    
Fair value $ 200 $ 70 $ 2,350 2,670
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 7.50% 7.50% 7.50%  
Principal $ 270 $ 450    
Cost 268 447    
Fair value $ 268 $ 447 $ 716 223
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 8,217 $ 8,352    
Cost 8,011 8,073    
Fair value $ 7,525 $ 7,587 $ 7,732 7,789
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 3,857 [29] 3,857 [30]    
Cost $ 9,501 [29] $ 9,501 [30]    
Fair value $ 9,835 [29] $ 9,835 [30] $ 9,835 9,835
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.38% [25] 15.38% [27] 15.25%  
Spread (as a percent) 10.00% [25] 10.00% [27] 10.00%  
Principal $ 13,420 [25] $ 14,873 [27]    
Cost 13,338 [25] 14,758 [27]    
Fair value $ 13,271 [25] $ 14,690 [27] $ 14,733 15,523
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 8,400 8,400 [30]    
Cost $ 8,400 $ 8,400 [30]    
Fair value 19,600 $ 20,740 [30] 23,350 22,220
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   14.00%    
Principal 0 [24] $ 1,233    
Cost (45) [24] 1,174    
Fair value $ 0 [24] $ 1,233 $ 0 0
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.00% 14.00% 13.00%  
Principal $ 24,723 $ 25,543    
Cost 24,659 25,457    
Fair value $ 24,723 $ 25,543 $ 26,465 27,267
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners - A, LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 6.43% [7],[8],[44] 6.43% [9],[10],[45]    
Cost $ 1,960 [7],[8],[44] $ 2,005 [9],[10],[45]    
Fair value $ 2,621 [7],[8],[44] $ 2,631 [9],[10],[45] 2,852 2,898
Investment, Identifier [Axis]: Dos Rios Partners, LP Interests (Dos Rios Partners, LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 20.24% [7],[8],[44] 20.24% [9],[10],[45]    
Cost $ 6,172 [7],[8],[44] $ 6,313 [9],[10],[45]    
Fair value $ 8,412 [7],[8],[44] $ 8,443 [9],[10],[45] 9,138 9,127
Investment, Identifier [Axis]: Dos Rios Stone Products LLC, Class A Preferred Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,000,000 [5],[41] 2,000,000 [6],[40]    
Cost $ 2,000 [5],[41] $ 2,000 [6],[40]    
Fair value $ 1,330 [5],[41] $ 1,580 [6],[40] 1,580 1,330
Investment, Identifier [Axis]: Dreyfus Government Cash Management        
Schedule of Investments [Line Items]        
Total Rate 4.94% 4.98%    
Cost $ 2,226 [48] $ 13,476 [49]    
Fair value $ 2,226 [48] $ 13,476 [49]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,250,000 [5] 1,250,000 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 1        
Schedule of Investments [Line Items]        
Units (in shares) 125,000 [5] 125,000 [6]    
Cost $ 128 [5] $ 128 [6]    
Fair value $ 60 [5] $ 60 [6]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Preferred Equity 2        
Schedule of Investments [Line Items]        
Units (in shares) 2,376,241 [5] 2,376,241 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.44% [5],[25] 10.45% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 5.00% [6],[27]    
PIK Rate 11.44% [5],[25] 10.45% [6],[27]    
Principal $ 2,184 [5],[25] $ 2,071 [6],[27]    
Cost 2,026 [5],[25] 1,912 [6],[27]    
Fair value $ 2,026 [5],[25] $ 1,912 [6],[27]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.44% [5],[25] 12.45% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 7.00% [6],[27]    
PIK Rate 13.44% [5],[25] 12.45% [6],[27]    
Principal $ 2,252 [5],[25] $ 2,113 [6],[27]    
Cost 2,018 [5],[25] 1,880 [6],[27]    
Fair value $ 1,998 [5],[25] $ 1,859 [6],[27]    
Investment, Identifier [Axis]: Dynata, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [11],[25] 14.21%      
Spread (as a percent) [11],[25] 8.75%      
Principal [11],[25] $ 646      
Cost [11],[25] 635      
Fair value [11],[25] $ 653      
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 [7],[8],[29] 5,000,000 [9],[10],[30],[45]    
Cost $ 808 [7],[8],[29] $ 808 [9],[10],[30],[45]    
Fair value $ 761 [7],[8],[29] $ 760 [9],[10],[30],[45] 974 1,013
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.49% [5],[25],[31] 13.50% [6],[27]    
Spread (as a percent) 8.00% [5],[25],[31] 8.00% [6],[27]    
Principal $ 2,826 [5],[25],[31] $ 967 [6],[27]    
Cost 2,792 [5],[25],[31] 930 [6],[27]    
Fair value $ 2,692 [5],[25],[31] $ 927 [6],[27]    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.48% [5],[25] 13.50% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 4,402 [5],[25] $ 4,792 [6],[27]    
Cost 4,371 [5],[25] 4,758 [6],[27]    
Fair value $ 4,193 [5],[25] $ 4,596 [6],[27]    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.48% [5],[25] 13.50% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 8,781 [5],[25] $ 9,557 [6],[27]    
Cost 8,713 [5],[25] 9,483 [6],[27]    
Fair value $ 8,364 [5],[25] $ 9,167 [6],[27]    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 13.48% [5],[25] 13.50% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 1,821 [5],[25] $ 1,982 [6],[27]    
Cost 1,809 [5],[25] 1,964 [6],[27]    
Fair value $ 1,735 [5],[25] $ 1,901 [6],[27]    
Investment, Identifier [Axis]: Eastern Wholesale Fence LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate 13.48% [5],[25] 13.50% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 9,964 [5],[25] $ 10,846 [6],[27]    
Cost 9,899 [5],[25] 10,747 [6],[27]    
Fair value $ 9,492 [5],[25] $ 10,403 [6],[27]    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) 285 285    
Cost $ 5,726 $ 5,726    
Fair value $ 5,730 $ 6,090 6,090 7,603
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) 939 [41] 939 [40]    
Cost $ 1,558 [41] $ 1,558 [40]    
Fair value $ 1,750 [41] $ 1,670 [40] $ 1,670 1,558
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.00% [24],[25] 6.00% [26],[27] 6.00%  
Principal $ 0 [24],[25] $ 0 [26],[27]    
Cost (6) [24],[25] (7) [26],[27]    
Fair value $ (6) [24],[25] $ (7) [26],[27] $ (8) (9)
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 18,303 $ 18,773    
Cost 18,184 18,632    
Fair value $ 18,184 $ 18,632 $ 18,613 18,594
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 9.00% 9.00% 9.00%  
Principal $ 6,289 $ 6,313    
Cost 6,230 6,252    
Fair value $ 6,230 $ 6,252 $ 6,274 6,294
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.75% [11],[25] 11.79% [12],[27]    
Spread (as a percent) 6.25% [11],[25] 6.25% [12],[27]    
Principal $ 9,716 [11],[25] $ 8,965 [12],[27]    
Cost 9,535 [11],[25] 8,841 [12],[27]    
Fair value $ 8,744 [11],[25] $ 8,158 [12],[27]    
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% [7],[8],[29],[44] 0.10% [9],[10],[30],[45]    
Cost $ 3,209 [7],[8],[29],[44] $ 3,564 [9],[10],[30],[45]    
Fair value $ 1,127 [7],[8],[29],[44] $ 1,720 [9],[10],[30],[45]    
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% [7],[8],[29],[44] 0.38% [9],[10],[30],[45]    
Cost $ 1,980 [7],[8],[29],[44] $ 1,980 [9],[10],[30],[45]    
Fair value $ 899 [7],[8],[29],[44] $ 899 [9],[10],[30],[45]    
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% [7],[8],[29],[44] 0.14% [9],[10],[30],[45]    
Cost $ 3,567 [7],[8],[29],[44] $ 3,567 [9],[10],[30],[45]    
Fair value $ 1,843 [7],[8],[29],[44] $ 1,918 [9],[10],[30],[45]    
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% [7],[8],[29],[44] 0.15% [9],[10],[30],[45]    
Cost $ 7,142 [7],[8],[29],[44] $ 6,742 [9],[10],[30],[45]    
Fair value $ 6,081 [7],[8],[29],[44] $ 5,858 [9],[10],[30],[45]    
Investment, Identifier [Axis]: EnCap Energy Fund Investments, LP Interests (EnCap Energy Capital Fund XII, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) [7],[8],[44] 0.41%      
Cost [7],[8],[44] $ 4,391      
Fair value [7],[8],[44] $ 4,391      
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% [7],[8],[29],[44] 0.84% [9],[10],[30],[45]    
Cost $ 5,083 [7],[8],[29],[44] $ 5,083 [9],[10],[30],[45]    
Fair value $ 1,566 [7],[8],[29],[44] $ 1,413 [9],[10],[30],[45]    
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% [7],[8],[29],[44] 0.25% [9],[10],[30],[45]    
Cost $ 4,378 [7],[8],[29],[44] $ 4,495 [9],[10],[30],[45]    
Fair value $ 3,939 [7],[8],[29],[44] $ 4,056 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25],[31] 14.00%      
Spread (as a percent) 5.50% [5],[25],[31] 5.50% [6],[26],[27]    
Principal $ 328 [5],[25],[31] $ 0 [6],[26],[27]    
Cost 298 [5],[25],[31] (35) [6],[26],[27]    
Fair value $ 328 [5],[25],[31] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.94% [5],[25] 11.98% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 16,052 [5],[25] $ 16,134 [6],[27]    
Cost 15,845 [5],[25] 15,899 [6],[27]    
Fair value $ 15,827 [5],[25] $ 16,134 [6],[27]    
Investment, Identifier [Axis]: Escalent, Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 649,794 [5] 649,794 [6]    
Cost $ 663 [5] $ 663 [6]    
Fair value $ 780 [5] $ 730 [6]    
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 8.00% [5],[24],[25] 8.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (31) [5],[24],[25] (35) [6],[26],[27]    
Fair value $ (31) [5],[24],[25] $ (35) [6],[26],[27]    
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.43% [5],[25] 13.45% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 26,180 [5],[25] $ 26,313 [6],[27]    
Cost 25,554 [5],[25] 25,620 [6],[27]    
Fair value $ 26,180 [5],[25] $ 26,313 [6],[27]    
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.60% [5],[25] 12.61% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 7.00% [6],[27]    
Principal $ 3,692 [5],[25] $ 3,692 [6],[27]    
Cost 3,674 [5],[25] 3,670 [6],[27]    
Fair value $ 3,692 [5],[25] $ 3,626 [6],[27]    
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.60% [5],[25] 12.61% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 7.00% [6],[27]    
PIK Rate [5],[25] 8.00%      
Principal $ 45,974 [5],[25] $ 44,169 [6],[27]    
Cost 45,754 [5],[25] 43,905 [6],[27]    
Fair value $ 45,712 [5],[25] 43,373 [6],[27]    
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00%      
Principal $ 32,800      
Cost 28,691      
Fair value $ 28,691      
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC (Supplycore), Warrants        
Schedule of Investments [Line Items]        
Units (in shares) [22] 12      
Cost [22] $ 3,920      
Fair value [22] $ 3,920      
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00%      
Fair value $ 28,691 0    
Investment, Identifier [Axis]: FCC Intermediate Holdco, LLC, Warrants        
Schedule of Investments [Line Items]        
Fair value $ 3,920 $ 0    
Investment, Identifier [Axis]: Fidelity Government Fund        
Schedule of Investments [Line Items]        
Total Rate 4.97% 5.01%    
Cost [50] $ 2,307      
Fair value [50] $ 2,307      
Investment, Identifier [Axis]: Fidelity Government Fund        
Schedule of Investments [Line Items]        
Cost [51]   $ 1,678    
Fair value [51]   $ 1,678    
Investment, Identifier [Axis]: Fidelity Treasury        
Schedule of Investments [Line Items]        
Total Rate 4.95% 4.99%    
Cost $ 1,353 [52] $ 70 [53]    
Fair value $ 1,353 [52] $ 70 [53]    
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 9,360 [29] 9,360 [30]    
Cost $ 10,400 [29] $ 10,400 [30]    
Fair value $ 35,750 [29] $ 27,900 [30] $ 24,350 17,580
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent)     6.50%  
Fair value     $ 0 7,600
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent)     9.00%  
Fair value     $ 0 21,200
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport Financial SBIC Fund LP)        
Schedule of Investments [Line Items]        
Units (as a percent) 9.30% [7],[8],[44] 9.30% [9],[10],[45]    
Cost $ 2,580 [7],[8],[44] $ 2,859 [9],[10],[45]    
Fair value $ 2,656 [7],[8],[44] $ 3,012 [9],[10],[45]    
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% [7],[8],[29],[44] 5.95% [9],[10],[30],[45]    
Cost $ 3,051 [7],[8],[29],[44] $ 4,160 [9],[10],[30],[45]    
Fair value 2,596 [7],[8],[29],[44] 3,704 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport Financial SBIC Fund LP)        
Schedule of Investments [Line Items]        
Fair value 2,656 3,012 3,628 3,483
Investment, Identifier [Axis]: Freeport Financial SBIC Fund LP, LP Interests (Freeport First Lien Loan Fund III LP)        
Schedule of Investments [Line Items]        
Fair value $ 2,596 $ 3,704 5,312 5,848
Investment, Identifier [Axis]: Fuse, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 10,429 [11] 10,429 [12]    
Cost $ 256 [11] $ 256 [12]    
Fair value $ 0 [11] $ 0 [12]    
Investment, Identifier [Axis]: Fuse, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% [11] 12.00% [12]    
Principal $ 1,810 [11] $ 1,810 [12]    
Cost 1,810 [11] 1,810 [12]    
Fair value $ 1,076 [11] $ 1,320 [12]    
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 226 [29] 226 [30]    
Cost $ 4,900 [29] $ 4,900 [30]    
Fair value $ 9,810 [29] $ 11,460 [30] $ 8,310 7,140
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 8.00% 8.00% 9.00%  
Principal $ 9,345 $ 9,345    
Cost 9,312 9,302    
Fair value $ 9,345 $ 9,345 $ 11,345 11,345
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 5,879 [29] 5,879    
Cost $ 13,065 [29] $ 13,065    
Fair value $ 44,440 [29] $ 44,440 $ 44,440 44,440
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.48% 11.48% 11.17%  
Spread (as a percent) 6.00% 6.00% 6.00%  
Principal $ 3,146 $ 2,400    
Cost 3,138 2,394    
Fair value $ 3,146 $ 2,400 $ 1,300 670
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.48% 13.48% 13.17%  
Spread (as a percent) 8.00% 8.00% 8.00%  
Principal $ 40,493 $ 40,493    
Cost 40,382 40,360    
Fair value $ 40,493 $ 40,493 $ 40,493 40,493
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27],[54]   11.96%    
Spread (as a percent) 6.50% [5],[24],[25] 6.50% [6],[27],[54]    
Principal $ 0 [5],[24],[25] $ 1,545 [6],[27],[54]    
Cost (9) [5],[24],[25] 1,542 [6],[27],[54]    
Fair value (9) [5],[24],[25] $ 1,545 [6],[27],[54]    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent) [6],[26],[27]   6.50%    
Principal 0 [5],[24] $ 0 [6],[26],[27]    
Cost (5) [5],[24] (9) [6],[26],[27]    
Fair value $ (5) [5],[24] $ (9) [6],[26],[27]    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.94% [5],[25] 11.96% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 10,568 [5],[25] $ 10,624 [6],[27]    
Cost 10,526 [5],[25] 10,605 [6],[27]    
Fair value $ 10,568 [5],[25] $ 10,624 [6],[27]    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 11.94% [5],[25] 11.96% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 947 [5],[25] $ 952 [6],[27]    
Cost 945 [5],[25] 952 [6],[27]    
Fair value $ 947 [5],[25] $ 952 [6],[27]    
Investment, Identifier [Axis]: GS HVAM Intermediate, LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate 11.94% [5],[25] 11.96% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 226 [5],[25] $ 227 [6],[27]    
Cost 224 [5],[25] 224 [6],[27]    
Fair value $ 226 [5],[25] $ 227 [6],[27]    
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.48% [5],[25],[31] 11.28% [6],[27],[55]    
Spread (as a percent) 6.00% [5],[25],[31] 5.75% [6],[27],[55]    
Principal $ 707 [5],[25],[31] $ 454 [6],[27],[55]    
Cost 693 [5],[25],[31] 438 [6],[27],[55]    
Fair value $ 703 [5],[25],[31] $ 454 [6],[27],[55]    
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.45% [5],[25] 11.38% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 5.75% [6],[27]    
Principal $ 299 [5],[25] $ 301 [6],[27]    
Cost 286 [5],[25] 286 [6],[27]    
Fair value $ 297 [5],[25] $ 301 [6],[27]    
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.48% [5],[25] 11.25% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 5.75% [6],[27]    
Principal $ 3,597 [5],[25] $ 3,615 [6],[27]    
Cost 3,545 [5],[25] 3,558 [6],[27]    
Fair value $ 3,561 [5],[25] $ 3,615 [6],[27]    
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 9,042 [29] 9,042 [30]    
Cost $ 17,692 [29] $ 17,692 [30]    
Fair value $ 106,550 [29] $ 96,710 [30] $ 70,160 50,890
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.50% [24],[25],[36] 7.50% [26],[27],[37] 8.50%  
Principal $ 0 [24],[25],[36] $ 0 [26],[27],[37]    
Cost 0 [24],[25],[36] 0 [26],[27],[37]    
Fair value $ 0 [24],[25],[36] $ 0 [26],[27],[37] $ 0 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.50% [25],[36] 10.50% [27],[37] 11.00%  
Spread (as a percent) 7.50% [25],[36] 7.50% [27],[37] 8.00%  
Principal $ 49,278 [25],[36] $ 54,078 [27],[37]    
Cost 49,073 [25],[36] 53,813 [27],[37]    
Fair value $ 49,278 [25],[36] $ 54,078 [27],[37] $ 59,678 64,078
Investment, Identifier [Axis]: Garreco, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,200 [29] 1,200    
Cost $ 1,200 [29] $ 1,200    
Fair value $ 1,580 [29] $ 1,580 $ 1,580 1,800
Investment, Identifier [Axis]: Garreco, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   9.50% [27],[56] 12.00%  
Spread (as a percent) 8.00% 8.00% [27],[56] 10.00%  
Principal [27],[56]   $ 3,088    
Cost [27],[56]   3,088    
Fair value $ 0 $ 3,088 [27],[56] $ 3,272 3,826
Investment, Identifier [Axis]: Garyline, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 705,882 [5] 705,882 [6]    
Cost $ 706 [5] $ 706 [6]    
Fair value $ 810 [5] $ 706 [6]    
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.93%      
Spread (as a percent) 6.50% [5],[25] 6.75% [6],[26],[27]    
Principal $ 2,824 [5],[25] $ 0 [6],[26],[27]    
Cost 2,594 [5],[25] (256) [6],[26],[27]    
Fair value $ 2,812 [5],[25] $ (256) [6],[26],[27]    
Investment, Identifier [Axis]: Garyline, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.93% [5],[25] 12.22% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.75% [6],[27]    
Principal $ 32,308 [5],[25] $ 32,471 [6],[27]    
Cost 31,464 [5],[25] 31,529 [6],[27]    
Fair value $ 32,178 [5],[25] $ 31,529 [6],[27]    
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 438 [7],[13],[29] 438 [30]    
Cost $ 2,980 [7],[13],[29] $ 2,980 [30]    
Fair value $ 14,980 [7],[13],[29] 9,070 [30] 8,000 6,790
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [7],[13],[24] 7.63%      
Principal [7],[13],[24] $ 0      
Cost [7],[13],[24] (47)      
Fair value $ 0 [7],[13],[24] 0    
Investment, Identifier [Axis]: Gulf Manufacturing, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [7],[13] 13.00%      
Spread (as a percent) [7],[13] 7.63%      
Principal [7],[13] $ 40,000      
Cost [7],[13] 39,627      
Fair value $ 40,000 [7],[13] $ 0    
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 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 $ 0 $ 2,460 $ 3,780 3,780
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 9.50% [24],[25],[32] 9.50% [26],[27] 9.50%  
Principal $ 0 [24],[25],[32] $ 0 [26],[27]    
Cost 0 [24],[25],[32] 0 [26],[27]    
Fair value $ 0 [24],[25],[32] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% [32] 12.50% 12.50%  
PIK Rate [32] 12.50%      
Principal $ 2,400 [32] $ 2,400    
Cost 2,400 [32] 2,400    
Fair value $ 1,948 [32] $ 2,284 $ 2,284 2,284
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 64,029      
Cost [5] $ 0      
Fair value [5] $ 0      
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 9.10% [5],[25] 14.34% [6],[27],[39]    
Spread (as a percent) 3.50% [5],[25] 9.50% [6],[27],[39]    
PIK Rate 2.50% [5],[25] 14.34% [6],[27],[39]    
Principal $ 2,393 [5],[25] $ 370 [6],[27],[39]    
Cost 2,264 [5],[25] 370 [6],[27],[39]    
Fair value $ 2,264 [5],[25] $ 336 [6],[27],[39]    
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 2.50% [5],[32] 14.34% [6],[27],[39]    
Spread (as a percent) [6],[27],[39]   9.50%    
PIK Rate 2.50% [5],[32] 14.34% [6],[27],[39]    
Principal $ 1,626 [5],[32] $ 3,751 [6],[27],[39]    
Cost 713 [5],[32] 3,751 [6],[27],[39]    
Fair value $ 638 [5],[32] $ 3,406 [6],[27],[39]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.50% [5],[24],[25] 6.50% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (42) [5],[24],[25] (48) [6],[26],[27]    
Fair value $ (42) [5],[24],[25] $ (48) [6],[26],[27]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.84% [5],[25] 11.86% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 6,699 [5],[25] $ 6,733 [6],[27]    
Cost 6,604 [5],[25] 6,622 [6],[27]    
Fair value $ 6,699 [5],[25] $ 6,733 [6],[27]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.86%    
Spread (as a percent) 6.50% [24],[25] 6.50% [6],[27]    
Principal $ 0 [24],[25] $ 16,622 [6],[27]    
Cost (66) [24],[25] 16,384 [6],[27]    
Fair value $ (66) [24],[25] $ 16,622 [6],[27]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.84%      
Spread (as a percent) [5],[25] 6.50%      
Principal [5],[25] $ 16,538      
Cost [5],[25] 16,334      
Fair value [5],[25] $ 16,537      
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.83%      
Spread (as a percent) [5],[25] 6.50%      
Principal [5],[25] $ 8,080      
Cost [5],[25] 8,001      
Fair value [5],[25] $ 8,080      
Investment, Identifier [Axis]: HOWLCO LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.98% [7],[11],[13],[25] 11.53% [9],[12],[14],[27]    
Spread (as a percent) 6.50% [7],[11],[13],[25] 6.00% [9],[12],[14],[27]    
PIK Rate [7],[11],[13],[25] 3.50%      
Principal $ 25,778 [7],[11],[13],[25] $ 25,162 [9],[12],[14],[27]    
Cost 25,778 [7],[11],[13],[25] 25,162 [9],[12],[14],[27]    
Fair value 25,494 [7],[11],[13],[25] 24,397 [9],[12],[14],[27]    
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, L.P.)        
Schedule of Investments [Line Items]        
Fair value 4,044 1,869    
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (423 COR, LP)        
Schedule of Investments [Line Items]        
Fair value     1,400 1,400
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)        
Schedule of Investments [Line Items]        
Fair value 4,472 4,225 4,106 4,331
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 4, L.P.)        
Schedule of Investments [Line Items]        
Fair value $ 4,984 $ 3,773 2,796 2,332
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 GRE-LP, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) [7],[8],[44] 43.05%      
Cost [7],[8],[44] $ 441      
Fair value [7],[8],[44] $ 441      
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% [7],[8],[44] 49.26% [9],[10],[45]    
Cost $ 248 [7],[8],[44] $ 248 [9],[10],[45]    
Fair value $ 374 [7],[8],[44] $ 315 [9],[10],[45]    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) 49.26% [7],[8],[29],[44] 49.26% [9],[10],[30],[45]    
Cost $ 3,345 [7],[8],[29],[44] $ 3,345 [9],[10],[30],[45]    
Fair value $ 8,991 [7],[8],[29],[44] $ 6,050 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 COR, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) 22.93% [7],[8],[29],[44] 22.93% [9],[10],[30],[45]    
Cost $ 2,900 [7],[8],[29],[44] $ 1,400 [9],[10],[30],[45]    
Fair value $ 4,044 [7],[8],[29],[44] $ 1,869 [9],[10],[30],[45]    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (423 HAR, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) 15.60% [7],[8],[44] 15.60% [9],[10],[45]    
Cost $ 750 [7],[8],[44] $ 750 [9],[10],[45]    
Fair value $ 1,048 [7],[8],[44] $ 996 [9],[10],[45]    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) 8.22% [7],[8],[29],[44] 8.22% [9],[10],[45]    
Cost $ 2,296 [7],[8],[29],[44] $ 2,296 [9],[10],[45]    
Fair value $ 4,472 [7],[8],[29],[44] $ 4,225 [9],[10],[45]    
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 4, L.P.)        
Schedule of Investments [Line Items]        
Units (as a percent) 11.61% [7],[8],[44] 11.61% [9],[10],[45]    
Cost $ 4,655 [7],[8],[44] $ 3,773 [9],[10],[45]    
Fair value $ 4,984 [7],[8],[44] $ 3,773 [9],[10],[45]    
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 $ 5,220 $ 4,660 3,490 3,280
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 226 [29] 226    
Cost $ 2,850 [29] $ 2,850    
Fair value $ 18,060 [29] $ 17,460 17,460 17,460
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 226 [41] 226 [40]    
Cost $ 150 [41] $ 150 [40]    
Fair value $ 950 [41] $ 920 [40] $ 920 920
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.48% [25] 11.65% [27] 11.53%  
Spread (as a percent) 6.00% [25] 6.00% [27] 6.00%  
Principal $ 2,090 [25] $ 1,974 [27]    
Cost 2,088 [25] 1,972 [27]    
Fair value $ 2,090 [25] $ 1,974 [27] $ 3,666 3,185
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.50% 12.50%  
Principal $ 45,256 $ 45,256    
Cost 45,172 45,144    
Fair value $ 45,256 $ 45,256 $ 41,942 37,800
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 322,297 [29] 322,297 [30]    
Cost $ 2,352 [29] $ 2,352 [30]    
Fair value $ 3,210 [29] $ 3,340 [30] $ 3,560 2,400
Investment, Identifier [Axis]: Houston Plating and Coatings, LLC, Unsecured Convertible Debt        
Schedule of Investments [Line Items]        
Total Rate 8.00% 8.00% 8.00%  
Principal $ 3,000 $ 3,000    
Cost 3,000 3,000    
Fair value $ 2,940 $ 2,880 $ 2,830 3,000
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.81% [5],[25] 15.91% [6],[27]    
Spread (as a percent) 8.25% [5],[25] 8.25% [6],[27]    
PIK Rate 2.00% [5],[25] 2.00% [6],[27]    
Principal $ 7,236 [5],[25] $ 7,167 [6],[27]    
Cost 7,127 [5],[25] 7,031 [6],[27]    
Fair value 7,196 [5],[25] 6,581 [6],[27]    
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)        
Schedule of Investments [Line Items]        
Cost [9],[10],[30]   20,200    
Fair value [9],[10],[30]   $ 13,490    
Diluted, percentage (as a percent) [9],[10]   20.00%    
Profits, percentage (as a percent) [9],[10]   21.75%    
Investment, Identifier [Axis]: I-45 SLF LLC, Member Units (Fully diluted 20.0%; 21.75% profits interest)        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 13,490 $ 11,751 11,758
Diluted, percentage (as a percent) 20.00%   20.00%  
Profits, percentage (as a percent) 21.75%   21.75%  
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 14,400 14,400    
Cost $ 14,400 $ 14,400    
Fair value 14,400 14,400 $ 15,096 0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost (31) [24] (35) [26]    
Fair value $ (31) [24] $ (35) [26] $ (39) 0
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 36,384 $ 37,264    
Cost 36,096 36,934    
Fair value $ 36,096 $ 36,934 $ 37,333 0
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 5.75% [11],[24],[25] 5.75% [12],[26],[27]    
Principal $ 0 [11],[24],[25] $ 0 [12],[26],[27]    
Cost (16) [11],[24],[25] (20) [12],[26],[27]    
Fair value $ 0 [11],[24],[25] $ 0 [12],[26],[27]    
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.19% [11],[25] 10.96% [12],[27]    
Spread (as a percent) 5.75% [11],[25] 5.50% [12],[27]    
Principal $ 10,154 [11],[25] $ 9,399 [12],[27]    
Cost 10,062 [11],[25] 9,294 [12],[27]    
Fair value $ 10,154 [11],[25] $ 9,399 [12],[27]    
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.19% [11],[25] 10.96% [12],[27]    
Spread (as a percent) 5.75% [11],[25] 5.50% [12],[27]    
Principal $ 4,928 [11],[25] $ 4,953 [12],[27]    
Cost 4,880 [11],[25] 4,899 [12],[27]    
Fair value $ 4,928 [11],[25] $ 4,953 [12],[27]    
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.35% [11],[25] 11.36% [12],[27]    
Spread (as a percent) 5.75% [11],[25] 5.75% [12],[27]    
Principal $ 6,986 [11],[25] $ 6,656 [12],[27]    
Cost 6,796 [11],[25] 6,544 [12],[27]    
Fair value $ 5,868 [11],[25] $ 5,325 [12],[27]    
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 16.46% [25] 16.59% [27]    
Spread (as a percent) 9.00% [25] 9.00% [27] 9.00%  
PIK Rate 2.00% [25] 2.00% [27] 2.00%  
Principal $ 1,190 [25] $ 826 [27]    
Cost 1,181 [25] 816 [27]    
Fair value $ 1,181 [25] $ 816 [27] $ (12) 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.46% [25] 16.59% [27]    
Spread (as a percent) 9.00% [25] 9.00% [27] 9.00%  
PIK Rate 2.00% [25] 2.00% [27] 2.00%  
Principal $ 719 [25] $ 711 [27]    
Cost 707 [25] 697 [27]    
Fair value $ 707 [25] $ 697 [27] $ (10) 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 15.46% [25] 15.59% [27] 15.38%  
Spread (as a percent) 8.00% [25] 8.00% [27] 8.00%  
PIK Rate 2.00% [25] 2.00% [27] 2.00%  
Principal $ 4,407 [25] $ 4,362 [27]    
Cost 3,607 [25] 3,430 [27]    
Fair value $ 3,607 [25] $ 3,430 [27] $ 3,252 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 17.46% [25] 17.59% [27] 17.38%  
Spread (as a percent) 10.00% [25] 10.00% [27] 10.00%  
PIK Rate 2.00% [25] 2.00% [27] 2.00%  
Principal $ 4,407 [25] $ 4,362 [27]    
Cost 3,607 [25] 3,430 [27]    
Fair value $ 3,607 [25] $ 3,430 [27] $ 3,252 0
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 193,307 [22] 193,307 [23]    
Cost $ 2,091 [22] $ 2,091 [23]    
Fair value $ 2,660 [22] $ 2,091 [23] 2,091 0
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 849 [5] 849 [6]    
Cost $ 1,166 [5] $ 1,166 [6]    
Fair value $ 1,150 [5] $ 1,110 [6]    
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.28% [5],[25] 12.41% [6],[27],[57]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27],[57]    
Principal $ 791 [5],[25] $ 1,581 [6],[27],[57]    
Cost 718 [5],[25] 1,500 [6],[27],[57]    
Fair value $ 791 [5],[25] $ 1,571 [6],[27],[57]    
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.25% [5],[25] 12.45% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 20,663 [5],[25] $ 20,768 [6],[27]    
Cost 20,175 [5],[25] 20,217 [6],[27]    
Fair value $ 20,663 [5],[25] $ 20,637 [6],[27]    
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.24% [5],[25] 14.25% [6],[27]    
Spread (as a percent) 7.75% [5],[25] 7.75% [6],[27]    
PIK Rate 1.00% [5],[25] 1.00% [6],[27]    
Principal $ 18,647 [5],[25] $ 18,645 [6],[27]    
Cost 18,640 [5],[25] 18,600 [6],[27]    
Fair value $ 17,852 [5],[25] $ 17,334 [6],[27]    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 18,006,407 [5] 18,006,407 [6]    
Cost $ 18,300 [5] $ 18,300 [6]    
Fair value $ 18,110 [5] $ 17,690 [6] 18,300 0
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [6],[40]   900    
Cost [6],[40]   $ 900    
Fair value [6],[40]   $ 690    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) [6],[30],[40]   144    
Total Rate [6],[30],[40]   10.00%    
PIK Rate [6],[30],[40]   10.00%    
Cost [6],[30],[40]   $ 138    
Fair value [6],[30],[40]   $ 178    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) [6],[30],[40]   80    
Total Rate [6],[30],[40]   20.00%    
PIK Rate [6],[30],[40]   20.00%    
Cost [6],[30],[40]   $ 102    
Fair value [6],[30],[40]   $ 120    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27],[58]   12.22%    
Spread (as a percent) [6],[27],[58]   6.75%    
Principal [6],[27],[58]   $ 1,390    
Cost [6],[27],[58]   1,367    
Fair value [6],[27],[58]   $ 1,390    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.22%    
Spread (as a percent) [6],[27]   6.75%    
Principal [6],[27]   $ 19,044    
Cost [6],[27]   18,842    
Fair value [6],[27]   $ 19,044    
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 87,360 [29] 80,000    
Cost $ 4,368 [29] $ 4,000    
Fair value $ 4,368 [29] $ 4,000 $ 4,000 0
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 15,500 $ 17,550    
Cost 15,386 17,403    
Fair value $ 15,386 $ 17,403 $ 17,832 0
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.21%    
Spread (as a percent) [6],[27]   5.75%    
Principal [6],[27]   $ 1,504    
Cost [6],[27]   1,480    
Fair value [6],[27]   $ 1,504    
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.21%    
Spread (as a percent) [6],[27]   5.75%    
Principal [6],[27]   $ 7,752    
Cost [6],[27]   7,663    
Fair value [6],[27]   $ 7,752    
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 131,100 [5] 131,100 [6]    
Cost $ 656 [5] $ 656 [6]    
Fair value $ 370 [5] $ 656 [6]    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.25% [5],[24],[25] 6.25% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (62) [5],[24],[25] (70) [6],[26],[27]    
Fair value $ (62) [5],[24],[25] $ (70) [6],[26],[27]    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.25% [5],[24],[25] 6.25% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (52) [5],[24],[25] (57) [6],[26],[27]    
Fair value $ (52) [5],[24],[25] $ (57) [6],[26],[27]    
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.58% [5],[25] 11.65% [6],[27]    
Spread (as a percent) 6.25% [5],[25] 6.25% [6],[27]    
Principal $ 14,334 [5],[25] $ 14,406 [6],[27]    
Cost 13,973 [5],[25] 14,009 [6],[27]    
Fair value $ 13,782 [5],[25] $ 14,258 [6],[27]    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 131,569 [5] 131,569 [6]    
Cost $ 417 [5] $ 417 [6]    
Fair value $ 90 [5] $ 240 [6]    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.44% [5],[25],[31] 13.53% [6],[27],[59]    
Spread (as a percent) 8.00% [5],[25],[31] 8.00% [6],[27],[59]    
Principal $ 790 [5],[25],[31] $ 790 [6],[27],[59]    
Cost 773 [5],[25],[31] 770 [6],[27],[59]    
Fair value $ 723 [5],[25],[31] $ 776 [6],[27],[59]    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.43% [5],[25] 13.55% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 7,271 [5],[25] $ 7,308 [6],[27]    
Cost 7,129 [5],[25] 7,146 [6],[27]    
Fair value $ 6,651 [5],[25] $ 7,177 [6],[27]    
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.43% [5],[25] 13.55% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 2,925 [5],[25] $ 2,940 [6],[27]    
Cost 2,872 [5],[25] 2,879 [6],[27]    
Fair value $ 2,675 [5],[25] $ 2,887 [6],[27]    
Investment, Identifier [Axis]: Integral Energy Services, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 9,968 [5] 9,968 [6]    
Cost $ 1,356 [5] $ 1,356 [6]    
Fair value $ 550 [5] $ 160 [6] $ 820 1,280
Investment, Identifier [Axis]: Integral Energy Services, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,188 [5],[29] 3,188 [6]    
Total Rate 10.00% [5],[29] 10.00% [6]    
PIK Rate 10.00% [5],[29] 10.00% [6]    
Cost $ 242 [5],[29] $ 227 [6]    
Fair value $ 440 [5],[29] $ 300 [6]    
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.06% [5],[25] 13.16% [6],[27] 13.04%  
Spread (as a percent) 7.50% [5],[25] 7.50% [6],[27] 7.50%  
Principal $ 12,915 [5],[25] $ 14,485 [6],[27]    
Cost 12,800 [5],[25] 14,323 [6],[27]    
Fair value $ 12,701 [5],[25] $ 13,891 [6],[27] $ 15,575 15,769
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 2,143 [5] 2,143 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.44% [5],[31],[38] 15.48% [6],[39],[60]    
Spread (as a percent) 10.00% [5],[31],[38] 10.00% [6],[39],[60]    
PIK Rate [5],[31],[38] 15.43%      
Principal $ 1,922 [5],[31],[38] $ 1,835 [6],[39],[60]    
Cost 1,922 [5],[31],[38] 1,835 [6],[39],[60]    
Fair value $ 1,767 [5],[31],[38] $ 1,781 [6],[39],[60]    
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.44% [5],[25],[32],[38] 12.46% [6],[27],[33],[39]    
Spread (as a percent) 7.00% [5],[25],[32],[38] 7.00% [6],[27],[33],[39]    
PIK Rate 12.44% [5],[25],[32],[38] 12.46% [6],[27],[33],[39]    
Principal $ 7,313 [5],[25],[32],[38] $ 7,313 [6],[27],[33],[39]    
Cost 7,237 [5],[25],[32],[38] 7,237 [6],[27],[33],[39]    
Fair value $ 99 [5],[25],[32],[38] $ 431 [6],[27],[33],[39]    
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.47%    
Spread (as a percent) [12],[27]   6.00%    
Principal [12],[27]   $ 20,201    
Cost [12],[27]   20,172    
Fair value [12],[27]   $ 19,570    
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.00%    
Spread (as a percent) 6.50% [5],[24],[25],[31] 6.50% [6],[27]    
Principal $ 0 [5],[24],[25],[31] $ 519 [6],[27]    
Cost (2) [5],[24],[25],[31] 516 [6],[27]    
Fair value $ (2) [5],[24],[25],[31] $ 509 [6],[27]    
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.98% [5],[25] 12.00% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 16,812 [5],[25] $ 16,812 [6],[27]    
Cost 16,767 [5],[25] 16,747 [6],[27]    
Fair value $ 16,517 [5],[25] $ 16,515 [6],[27]    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 203,016 203,016    
Cost $ 2,756 $ 2,756    
Fair value $ 2,680 2,680 $ 2,756 1,798
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 711,200      
Cost $ 711      
Fair value $ 711 $ 0    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.50% 13.50% 13.50%  
Principal $ 4,514 $ 4,514    
Cost 4,490 4,487    
Fair value $ 4,490 $ 4,487 $ 4,484 4,500
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.50% 13.50% 13.50%  
Principal $ 2,940 $ 2,940    
Cost 2,924 2,922    
Fair value $ 2,924 $ 2,922 $ 3,119 3,130
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.50% 13.50% 13.50%  
Principal $ 8,944 $ 8,944    
Cost 8,944 8,944    
Fair value $ 8,944 $ 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% 13.50% 13.50%  
Principal $ 17,624 $ 19,624    
Cost 17,529 19,503    
Fair value $ 17,529 $ 19,503 $ 19,488 19,559
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate 13.50% 13.50% 13.50%  
Principal $ 10,162 $ 10,562    
Cost 9,918 10,273    
Fair value $ 9,918 $ 10,273 $ 10,819 0
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 198,743 [11] 186,322 [12]    
Cost $ 0 [11] $ 0 [12]    
Fair value $ 0 [11] $ 0 [12]    
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.93% [11],[25] 11.04% [12],[27]    
Spread (as a percent) 6.50% [11],[25] 5.50% [12],[27]    
PIK Rate 9.43% [11],[25] 8.54% [12],[27]    
Principal $ 3,017 [11],[25] $ 2,615 [12],[27]    
Cost 2,784 [11],[25] 2,374 [12],[27]    
Fair value $ 2,655 [11],[25] $ 2,301 [12],[27]    
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.50%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (9)      
Fair value [5],[24],[25] $ (9)      
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.10%      
Spread (as a percent) [5],[25] 5.50%      
Principal [5],[25] $ 1,735      
Cost [5],[25] 1,703      
Fair value [5],[25] $ 1,703      
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.10%      
Spread (as a percent) [5],[25] 6.50%      
Principal [5],[25] $ 1,735      
Cost [5],[25] 1,703      
Fair value [5],[25] $ 1,703      
Investment, Identifier [Axis]: Island Pump and Tank, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 13.10%      
Spread (as a percent) [5],[25] 7.50%      
Principal [5],[25] $ 1,735      
Cost [5],[25] 1,703      
Fair value [5],[25] $ 1,703      
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.75%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (153)      
Fair value [5],[24],[25] $ (153)      
Investment, Identifier [Axis]: JDC Power Services, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.08%      
Spread (as a percent) [5],[25] 6.75%      
Principal [5],[25] $ 52,789      
Cost [5],[25] 51,491      
Fair value [5],[25] $ 51,491      
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,684,211 [5] 1,684,211 [6]    
Cost $ 1,684 [5] $ 1,684 [6]    
Fair value $ 1,120 [5] $ 1,710 [6]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.83% [5],[25],[31] 11.64% [6],[27],[61]    
Spread (as a percent) 6.25% [5],[25],[31] 6.00% [6],[27],[61]    
Principal $ 8,421 [5],[25],[31] $ 3,137 [6],[27],[61]    
Cost 8,337 [5],[25],[31] 3,036 [6],[27],[61]    
Fair value $ 8,057 [5],[25],[31] $ 3,137 [6],[27],[61]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.83% [5],[25] 11.61% [6],[27]    
Spread (as a percent) 6.25% [5],[25] 6.00% [6],[27]    
Principal $ 35,526 [5],[25] $ 36,000 [6],[27]    
Cost 35,161 [5],[25] 35,562 [6],[27]    
Fair value $ 33,990 [5],[25] $ 36,000 [6],[27]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.83%      
Spread (as a percent) [5],[25] 6.25%      
Principal [5],[25] $ 3,326      
Cost [5],[25] 3,240      
Fair value [5],[25] $ 3,182      
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 2,826,667 [5] 2,826,667 [6]    
Cost $ 110 [5] $ 110 [6]    
Fair value $ 870 [5] $ 1,090 [6]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.47% [5],[25],[28] 12.46% [6],[27],[62]    
Spread (as a percent) 7.00% [5],[25],[28] 7.00% [6],[27],[62]    
Principal $ 825 [5],[25],[28] $ 835 [6],[27],[62]    
Cost 820 [5],[25],[28] 823 [6],[27],[62]    
Fair value $ 823 [5],[25],[28] $ 835 [6],[27],[62]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.46% [5],[25] 12.46% [6],[27]    
Spread (as a percent) 10.00% [5],[25] 7.00% [6],[27]    
Principal $ 425 [5],[25] $ 1,974 [6],[27]    
Cost 415 [5],[25] 1,974 [6],[27]    
Fair value $ 425 [5],[25] $ 1,974 [6],[27]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.48%      
Spread (as a percent) [5],[25] 7.00%      
Principal [5],[25] $ 1,922      
Cost [5],[25] 1,922      
Fair value [5],[25] $ 1,918      
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 627 [29] 627 [30]    
Cost $ 811 [29] $ 811 [30]    
Fair value $ 12,330 [29] $ 12,420 [30] $ 13,510 14,970
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.75% [24],[25] 6.75% [26],[39] 6.75%  
Principal $ 0 [24],[25] $ 0 [26],[39]    
Cost 0 [24],[25] 0 [26],[39]    
Fair value $ 0 [24],[25] $ 0 [26],[39] $ 0 0
Investment, Identifier [Axis]: Jensen Jewelers of Idaho, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.00% [25] 15.25% [27],[39] 15.00%  
Spread (as a percent) 6.75% [25] 6.75% [27],[39] 6.75%  
Principal $ 1,800 [25] $ 1,998 [27],[39]    
Cost 1,800 [25] 1,998 [27],[39]    
Fair value $ 1,800 [25] $ 1,998 [27],[39] $ 2,450 2,450
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) [12]   472,579    
Cost [12]   $ 4,429    
Fair value [12]   $ 0    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) [11] 472,579      
Cost [11] $ 4,429      
Fair value [11] $ 0      
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) [11] 5,461,019      
Cost [11] $ 200      
Fair value [11] $ 200      
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 21.59% [11],[25],[32] 23.63% [12],[27],[33]    
Spread (as a percent) 16.00% [11],[25],[32] 18.00% [12],[27],[33]    
PIK Rate 21.59% [11],[25],[32] 23.63% [12],[27],[33]    
Principal $ 1,134 [11],[25],[32] $ 2,431 [12],[27],[33]    
Cost 1,134 [11],[25],[32] 2,431 [12],[27],[33]    
Fair value $ 0 [11],[25],[32] $ 2,074 [12],[27],[33]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 21.59% [11],[25],[32] 21.63% [12],[27],[33]    
Spread (as a percent) 16.00% [11],[25],[32] 16.00% [12],[27],[33]    
PIK Rate 21.59% [11],[25],[32] 21.63% [12],[27],[33]    
Principal $ 1,091 [11],[25],[32] $ 2,057 [12],[27],[33]    
Cost 1,091 [11],[25],[32] 2,038 [12],[27],[33]    
Fair value $ 0 [11],[25],[32] $ 143 [12],[27],[33]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.35% [11],[25] 21.63% [12],[27],[33]    
Spread (as a percent) 8.75% [11],[25] 16.00% [12],[27],[33]    
PIK Rate 6.00% [11],[25] 21.63% [12],[27],[33]    
Principal $ 1,975 [11],[25] $ 1,978 [12],[27],[33]    
Cost 1,975 [11],[25] 1,959 [12],[27],[33]    
Fair value $ 1,975 [11],[25] $ 137 [12],[27],[33]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [11],[25] 14.35%      
Spread (as a percent) [11],[25] 8.75%      
PIK Rate [11],[25] 14.35%      
Principal [11],[25] $ 1,200      
Cost [11],[25] 1,200      
Fair value [11],[25] $ 1,200      
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,310 [29] 3,310    
Cost $ 3,635 [29] $ 3,635    
Fair value 13,070 [29] 9,620 $ 6,550 5,540
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent)     11.50%  
Principal 0 [24] 0 [26]    
Cost (15) [24] (18) [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.00% 15.00% 16.75%  
Spread (as a percent)     11.50%  
Principal $ 21,507 $ 24,207    
Cost 21,395 24,066    
Fair value $ 21,507 $ 24,207 $ 9,838 9,999
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 107,406 [29] 107,406 [30]    
Cost $ 10,741 [29] $ 10,741 [30]    
Fair value $ 10,741 [29] $ 10,741 [30] $ 10,741 10,741
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 25,003 $ 25,650    
Cost 24,866 25,483    
Fair value $ 24,866 $ 25,483 $ 25,458 25,432
Investment, Identifier [Axis]: KBK Industries, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 325 [29] 325 [30]    
Cost $ 783 [29] $ 783 [30]    
Fair value $ 24,820 [29] $ 22,770 [30] $ 12,360 15,570
Investment, Identifier [Axis]: KBK Industries, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 9.00% 9.00% 9.00%  
Principal $ 4,300 $ 4,700    
Cost 4,268 4,662    
Fair value $ 4,300 $ 4,700 $ 5,300 0
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.73% [5],[25] 14.75% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 9.25% [6],[27]    
Principal $ 1,028 [5],[25] $ 1,034 [6],[27]    
Cost 1,002 [5],[25] 1,002 [6],[27]    
Fair value $ 968 [5],[25] $ 943 [6],[27]    
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.73% [5],[25] 14.75% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 9.25% [6],[27]    
Principal $ 7,410 [5],[25] $ 7,448 [6],[27]    
Cost 7,340 [5],[25] 7,365 [6],[27]    
Fair value $ 6,974 [5],[25] $ 6,782 [6],[27]    
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 800 [29],[41] 800 [40]    
Cost $ 992 [29],[41] $ 992 [40]    
Fair value $ 2,490 [29],[41] $ 2,730 [40] 2,780 2,850
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 $ 11,930 $ 9,690 $ 7,730 7,220
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 17,399 $ 19,799    
Cost 17,382 19,774    
Fair value $ 17,382 $ 19,774 $ 20,569 20,374
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 9.00% 9.00% 9.00%  
Principal $ 3,982 $ 3,840    
Cost 3,948 3,805    
Fair value $ 3,948 $ 3,805 $ 3,824 3,842
Investment, Identifier [Axis]: LKCM Headwater Investments I, L.P., LP Interests        
Schedule of Investments [Line Items]        
Units (as a percent) 2.27% [7],[8],[29],[44] 2.27% [9],[10],[45]    
Cost $ 1,746 [7],[8],[29],[44] $ 1,746 [9],[10],[45]    
Fair value $ 2,841 [7],[8],[29],[44] $ 2,988 [9],[10],[45]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.68% [5],[25] 12.71% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 8,623 [5],[25] $ 7,960 [6],[27]    
Cost 8,530 [5],[25] 7,940 [6],[27]    
Fair value $ 8,623 [5],[25] $ 7,960 [6],[27]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.68% [5],[25] 12.71% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 5,512 [5],[25] $ 5,246 [6],[27]    
Cost 5,452 [5],[25] 5,231 [6],[27]    
Fair value $ 5,512 [5],[25] $ 5,246 [6],[27]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.68% [5],[25] 12.71% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 2,892 [5],[25] $ 2,803 [6],[27]    
Cost 2,861 [5],[25] 2,796 [6],[27]    
Fair value $ 2,892 [5],[25] $ 2,803 [6],[27]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 12.68% [5],[25] 12.71% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 1,124 [5],[25] $ 1,056 [6],[27]    
Cost 1,112 [5],[25] 1,053 [6],[27]    
Fair value $ 1,124 [5],[25] $ 1,056 [6],[27]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[25] 12.71% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 11,382 [5],[25] $ 10,694 [6],[27]    
Cost 11,256 [5],[25] 10,658 [6],[27]    
Fair value $ 11,382 [5],[25] $ 10,694 [6],[27]    
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.98% [5],[25] 15.54% [6],[27]    
Spread (as a percent) 9.00% [5],[25] 9.00% [6],[27]    
PIK Rate 0.50% [5],[25] 1.00% [6],[27]    
Principal $ 4,408 [5],[25] $ 4,428 [6],[27]    
Cost 4,335 [5],[25] 4,338 [6],[27]    
Fair value $ 3,900 [5],[25] $ 3,979 [6],[27]    
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.46% [11] 10.62% [12]    
Spread (as a percent) 5.00% [11] 5.00% [12]    
Principal $ 15,607 [11] $ 14,325 [12]    
Cost 15,504 [11] 14,237 [12]    
Fair value $ 15,139 [11] $ 13,895 [12]    
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.25% [5],[25] 13.25% [6],[27]    
Spread (as a percent) 4.75% [5],[25] 4.75% [6],[27]    
Principal $ 24,809 [5],[25] $ 23,921 [6],[27]    
Cost 24,269 [5],[25] 23,082 [6],[27]    
Fair value $ 19,266 [5],[25] $ 18,778 [6],[27]    
Investment, Identifier [Axis]: Looking Glass Investments, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 3 [7],[8] 3 [9],[10]    
Cost $ 125 [7],[8] $ 125 [9],[10]    
Fair value $ 25 [7],[8] $ 25 [9],[10]    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.46%    
Spread (as a percent) [12],[27]   6.00%    
Principal [12],[27]   $ 2,803    
Cost [12],[27]   2,785    
Fair value [12],[27]   $ 2,803    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.46%    
Spread (as a percent) [12],[27]   6.00%    
Principal [12],[27]   $ 3,925    
Cost [12],[27]   3,899    
Fair value [12],[27]   $ 3,925    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.46%    
Spread (as a percent) [12],[27]   6.00%    
Principal [12],[27]   $ 3,464    
Cost [12],[27]   3,440    
Fair value [12],[27]   $ 3,464    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.46%    
Spread (as a percent) [12],[27]   6.00%    
Principal [12],[27]   $ 7,796    
Cost [12],[27]   7,727    
Fair value [12],[27]   $ 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 $ 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 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.00% 13.00% [39] 13.00%  
Principal $ 5,240 $ 5,400 [39]    
Cost 5,240 5,400 [39]    
Fair value $ 4,862 $ 5,022 [39] $ 5,503 4,548
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, LP Interests        
Schedule of Investments [Line Items]        
Units (as a percent) 14.51% [7],[8],[29],[44] 14.51% [9],[10],[30],[45]    
Cost $ 14,250 [7],[8],[29],[44] $ 14,250 [9],[10],[30],[45]    
Fair value $ 14,469 [7],[8],[29],[44] 14,527 [9],[10],[30],[45]    
Investment, Identifier [Axis]: MS Private Loan Fund I, LP, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [7],[8] 5.00%      
Principal $ 7,000 [7],[8] 0 [9],[10],[26]    
Cost 7,000 [7],[8] 0 [9],[10],[26]    
Fair value $ 7,000 [7],[8] $ 0 [9],[10],[26]    
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, LP Interests        
Schedule of Investments [Line Items]        
Units (as a percent) 14.12% [7],[8],[29],[44] 13.37% [9],[10],[45]    
Cost $ 3,725 [7],[8],[29],[44] $ 1,561 [9],[10],[45]    
Fair value $ 3,810 [7],[8],[29],[44] $ 1,561 [9],[10],[45]    
Investment, Identifier [Axis]: MS Private Loan Fund II, LP, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 8.88% [7],[8] 8.88% [9],[10],[27]    
Spread (as a percent) 3.50% [7],[8] 3.50% [9],[10],[27]    
Principal $ 49,500 [7],[8] $ 23,500 [9],[10],[27]    
Cost 49,408 [7],[8] 23,367 [9],[10],[27]    
Fair value $ 49,408 [7],[8] $ 23,367 [9],[10],[27]    
Investment, Identifier [Axis]: MS Private Loan Fund, LP Interests        
Schedule of Investments [Line Items]        
Fair value     14,635 14,833
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 1        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: MS Private Loan Fund, Secured Debt 2        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: MSC Adviser I, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (as a percent) 100.00% [29],[63] 100.00% [30],[64]    
Cost $ 29,500 [29],[63] $ 29,500 [30],[64]    
Fair value $ 186,560 [29],[63] $ 174,063 [30],[64] 133,970 122,930
Investment, Identifier [Axis]: MSC Income Fund, Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,919,595 [7],[8],[29] 1,290,267 [9],[10],[30]    
Cost $ 15,000 [7],[8],[29] $ 10,000 [9],[10],[30]    
Fair value $ 14,894 [7],[8],[29] $ 10,025 [9],[10],[30] 2,688 753
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.75% [5],[24],[25] 6.75% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (21) [5],[24],[25] (28) [6],[26],[27]    
Fair value $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.99% [5],[25] 12.28% [6],[27]    
Spread (as a percent) 7.50% [5],[25] 6.75% [6],[27]    
Principal $ 14,726 [5],[25] $ 15,049 [6],[27]    
Cost 14,623 [5],[25] 14,914 [6],[27]    
Fair value $ 14,726 [5],[25] $ 15,049 [6],[27]    
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.99%      
Spread (as a percent) [5],[25] 7.50%      
Principal [5],[25] $ 4,500      
Cost [5],[25] 4,386      
Fair value [5],[25] $ 4,500      
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units        
Schedule of Investments [Line Items]        
Fair value     $ 0 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent)     11.00%  
Fair value     $ 0 6,090
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Fair value     0 1,610
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock        
Schedule of Investments [Line Items]        
Fair value     $ 1,400 1,537
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Total Rate     8.00%  
PIK Rate     8.00%  
Fair value     $ 6,245 6,010
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Fair value     $ 0 0
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate     12.75%  
Fair value     $ 23,599 23,576
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,537,219 [29] 1,537,219    
Cost $ 1,537 [29] $ 1,537    
Fair value $ 3,070 [29] $ 1,500    
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 5,915,585 [29] 5,915,585 [30]    
Total Rate 8.00% [29] 8.00% [30]    
PIK Rate 8.00% [29] 8.00% [30]    
Cost $ 5,916 [29] $ 6,035 [30]    
Fair value 6,152 [29] 6,035 [30]    
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost 0 [24] 0 [26]    
Fair value $ 0 [24] $ 0 [26]    
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.75% 12.75%    
Principal $ 22,657 $ 23,802    
Cost 22,508 23,623    
Fair value $ 22,508 $ 23,623    
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.25% [5],[24],[25] 6.25% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (45) [5],[24],[25] (51) [6],[26],[27]    
Fair value $ (45) [5],[24],[25] $ (51) [6],[26],[27]    
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.42% [5],[25] 11.46% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
Principal $ 21,448 [5],[25] $ 22,168 [6],[27]    
Cost 21,171 [5],[25] 21,855 [6],[27]    
Fair value $ 21,448 [5],[25] $ 22,168 [6],[27]    
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.56% [5],[25] 12.52% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 22,495 [5],[25] $ 18,152 [6],[27]    
Cost 22,139 [5],[25] 17,883 [6],[27]    
Fair value $ 22,135 [5],[25] $ 17,524 [6],[27]    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 459,657 [5] 459,657 [6]    
Cost $ 460 [5] $ 460 [6]    
Fair value $ 460 [5] $ 460 [6]    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25],[31] 11.58%      
Spread (as a percent) 6.25% [5],[25],[31] 6.25% [6],[26],[27]    
Principal $ 1,356 [5],[25],[31] $ 0 [6],[26],[27]    
Cost 1,318 [5],[25],[31] (42) [6],[26],[27]    
Fair value $ 1,356 [5],[25],[31] $ (42) [6],[26],[27]    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25],[28] 11.59%      
Spread (as a percent) 6.25% [5],[25],[28] 6.25% [6],[26],[27]    
Principal $ 1,034 [5],[25],[28] $ 0 [6],[26],[27]    
Cost 1,008 [5],[25],[28] (16) [6],[26],[27]    
Fair value $ 1,034 [5],[25],[28] $ (16) [6],[26],[27]    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.60% [5],[25] 10.64% [6],[27]    
Spread (as a percent) 5.25% [5],[25] 5.25% [6],[27]    
Principal $ 4,929 [5],[25] $ 4,941 [6],[27]    
Cost 4,824 [5],[25] 4,825 [6],[27]    
Fair value $ 4,929 [5],[25] $ 4,825 [6],[27]    
Investment, Identifier [Axis]: Mini Melts of America, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 12.60% [5],[25] 12.64% [6],[27]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27]    
Principal $ 4,929 [5],[25] $ 4,941 [6],[27]    
Cost 4,820 [5],[25] 4,820 [6],[27]    
Fair value $ 4,929 [5],[25] $ 4,820 [6],[27]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 44,445,814 [5],[7],[13] 44,445,814 [6],[9],[14]    
Cost $ 889 [5],[7],[13] $ 889 [6],[9],[14]    
Fair value $ 678 [5],[7],[13] $ 678 [6],[9],[14]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 14.00% [5],[7],[13] 14.00% [6],[9],[14]    
PIK Rate 4.00% [5],[7],[13] 4.00% [6],[9],[14]    
Principal $ 3,968 [5],[7],[13] $ 3,889 [6],[9],[14]    
Cost 3,925 [5],[7],[13] 3,839 [6],[9],[14]    
Fair value $ 3,901 [5],[7],[13] $ 3,938 [6],[9],[14]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.00% [5],[7],[13] 14.00% [6],[9],[14]    
PIK Rate 4.00% [5],[7],[13] 4.00% [6],[9],[14]    
Principal $ 10,418 [5],[7],[13] $ 10,211 [6],[9],[14]    
Cost 10,296 [5],[7],[13] 10,068 [6],[9],[14]    
Fair value $ 11,060 [5],[7],[13] $ 11,164 [6],[9],[14]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.00% [5],[7],[13] 14.00% [6],[9],[14]    
PIK Rate 4.00% [5],[7],[13] 4.00% [6],[9],[14]    
Principal $ 17,563 [5],[7],[13] $ 17,213 [6],[9],[14]    
Cost 17,370 [5],[7],[13] 16,987 [6],[9],[14]    
Fair value $ 17,563 [5],[7],[13] $ 17,213 [6],[9],[14]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Unsecured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[7],[13] 8.00%      
PIK Rate [5],[7],[13] 8.00%      
Principal [5],[7],[13] $ 163      
Cost [5],[7],[13] 163      
Fair value [5],[7],[13] $ 163      
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 5,873 [29] 5,873 [30]    
Cost $ 2,720 [29] $ 2,720 [30]    
Fair value 26,100 [29] 26,390 [30] 27,150 22,830
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost 0 [24] 0 [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 5,746 $ 5,746    
Cost 5,727 5,746    
Fair value $ 5,746 $ 5,746 $ 5,746 5,746
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 $ 10,380 11,730 12,710 11,830
Investment, Identifier [Axis]: NBG Acquisition Inc, Secured Debt        
Schedule of Investments [Line Items]        
Principal [12],[33]   3,849    
Cost [12],[33]   3,834    
Fair value [12],[33]   $ 115    
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 65,962 65,962    
Cost $ 114 $ 114    
Fair value 50 53 3,865 4,615
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 1.1        
Schedule of Investments [Line Items]        
Fair value $ 1,389 1,466    
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 65,962      
Cost $ 3,603 3,603 [30]    
Fair value 1,389 1,466 [30] $ 145 175
Investment, Identifier [Axis]: NRP Jones, LLC, Member Units 2.1        
Schedule of Investments [Line Items]        
Fair value $ 50 $ 53    
Investment, Identifier [Axis]: NRP Jones, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 2,080 $ 2,080    
Cost 2,080 2,080    
Fair value $ 2,080 $ 2,080 $ 2,080 2,080
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 6,987 [29] 6,987 [30]    
Cost $ 6,987 [29] $ 6,987 [30]    
Fair value $ 19,410 [29] $ 15,020 [30] $ 12,790 7,700
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [25] 12.48%      
Spread (as a percent) 7.00% [25] 7.00% [26],[27] 7.00%  
Principal $ 1,250 [25] $ 0 [26],[27]    
Cost 1,242 [25] 0 [26],[27]    
Fair value 1,250 [25] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate   12.00% 12.00%  
Principal 0 [24] $ 25,794    
Cost (198) [24] 25,673    
Fair value $ 0 [24] $ 25,794 $ 21,294 20,094
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.00% 12.00%  
Principal $ 62,200 $ 10,500    
Cost 62,060 10,456    
Fair value 62,200 10,500 $ 10,500 10,500
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 3.1        
Schedule of Investments [Line Items]        
Fair value $ 0 10,500    
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 12.50%      
Fair value $ 62,200 0    
Investment, Identifier [Axis]: Nebraska Vet AcquireCo, LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Fair value $ 0 0    
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 365      
Cost $ 12,120      
Fair value $ 12,120 0    
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [25] 11.88%      
Spread (as a percent) [25] 6.50%      
Principal [25] $ 10,974      
Cost [25] 10,946      
Fair value $ 10,946 [25] 0    
Investment, Identifier [Axis]: Nello Industries Investco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.50%      
Principal $ 24,800      
Cost 24,556      
Fair value $ 24,556 $ 0    
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 103,144,186 [29] 103,144,186 [30]    
Cost $ 8,213 [29] $ 8,213 [30]    
Fair value $ 8,210 [29] 6,350 [30] 3,450 1,110
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Principal $ 1,600 0 [26]    
Cost 1,600 0 [26]    
Fair value $ 1,600 $ 0 [26] $ 0 0
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 9,811 $ 9,811    
Cost 9,777 9,751    
Fair value $ 9,811 $ 9,751 $ 8,368 8,477
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[24],[25] 7.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (7) [5],[24],[25] (9) [6],[26],[27]    
Fair value $ (7) [5],[24],[25] $ (8) [6],[26],[27]    
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.45%      
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[26],[27]    
Principal $ 28,605 [5],[25] $ 0 [6],[26],[27]    
Cost 28,319 [5],[25] 0 [6],[26],[27]    
Fair value $ 28,605 [5],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.54%    
Spread (as a percent) [6],[27]   7.00%    
Principal [6],[27]   $ 20,467    
Cost [6],[27]   20,255    
Fair value [6],[27]   $ 20,467    
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.52%    
Spread (as a percent) [6],[27]   7.00%    
Principal [6],[27]   $ 7,222    
Cost [6],[27]   7,089    
Fair value [6],[27]   $ 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 8,380 8,040
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1.1        
Schedule of Investments [Line Items]        
Fair value $ 10,200 $ 9,240    
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 10,200 9,240 $ 5,150 5,150
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2.1        
Schedule of Investments [Line Items]        
Fair value $ 5,150 $ 5,150    
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.98% [25] 11.98% [27] 11.75%  
Spread (as a percent) 6.50% [25] 6.50% [27] 6.50%  
Principal $ 3,600 [25] $ 3,600 [27]    
Cost 3,600 [25] 3,600 [27]    
Fair value $ 3,600 [25] $ 3,600 [27] $ 4,399 4,399
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 18,440 $ 18,440    
Cost 18,432 18,426    
Fair value $ 18,432 $ 18,426 $ 18,420 18,414
Investment, Identifier [Axis]: OMi Topco, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 900 [29] 900 [30]    
Cost $ 1,080 [29] $ 1,080 [30]    
Fair value $ 48,280 [29] $ 36,380 [30] $ 29,310 22,810
Investment, Identifier [Axis]: OMi Topco, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 12,000 $ 12,750    
Cost 11,948 12,682    
Fair value $ 12,000 $ 12,750 $ 14,250 15,750
Investment, Identifier [Axis]: Obra Capital, Inc. (f/k/a Vida Capital, Inc.), Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [12]   11.47%    
Spread (as a percent) [12]   6.00%    
Principal [12]   $ 17,373    
Cost [12]   16,558    
Fair value [12]   $ 14,897    
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 7.50%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (4)      
Fair value [5],[24],[25] $ (4)      
Investment, Identifier [Axis]: Obra Capital, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.95%      
Spread (as a percent) [5],[25] 7.50%      
Principal [5],[25] $ 26,352      
Cost [5],[25] 25,575      
Fair value [5],[25] $ 25,575      
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 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% 7.00%  
PIK Rate 7.00% 7.00% 7.00%  
Cost $ 1,981 $ 1,981    
Fair value $ 0 $ 0 $ 0 0
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32] 12.00% [33] 12.00%  
PIK Rate 12.00% [32] 12.00% [33] 12.00%  
Principal $ 4,415 [32] $ 4,415 [33]    
Cost 4,415 [32] 4,415 [33]    
Fair value $ 987 [32] 1,493 [33] $ 441 569
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 1.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
PIK Rate 12.00%      
Fair value $ 215 $ 326    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32] 12.00% [33] 12.00%  
PIK Rate 12.00% [32] 12.00% [33] 12.00%  
Principal $ 2,116 [32] $ 2,116 [33]    
Cost 2,116 [32] 2,116 [33]    
Fair value $ 473 [32] 716 [33] $ 450 580
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
PIK Rate 12.00%      
Fair value $ 220 $ 332    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32] 12.00% [33] 12.00%  
PIK Rate 12.00% [32] 12.00% [33] 12.00%  
Principal $ 983 [32] $ 983 [33]    
Cost 983 [32] 983 [33]    
Fair value $ 220 [32] 332 [33] $ 969 1,249
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 3.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
PIK Rate 12.00%      
Fair value $ 473 $ 716    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32] 12.00% [33] 12.00%  
PIK Rate 12.00% [32] 12.00% [33] 12.00%  
Principal $ 964 [32] $ 964 [33]    
Cost 964 [32] 964 [33]    
Fair value $ 215 [32] 326 [33] $ 2,022 2,606
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Secured Debt 4.1        
Schedule of Investments [Line Items]        
Total Rate 12.00%      
PIK Rate 12.00%      
Fair value $ 987 $ 1,493    
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Unsecured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% [32] 10.00% [33] 10.00%  
PIK Rate 10.00% [32] 10.00% [33] 10.00%  
Principal $ 305 [32] $ 305 [33]    
Cost 305 [32] 305 [33]    
Fair value $ 305 [32] $ 305 [33] $ 305 305
Investment, Identifier [Axis]: OnAsset Intelligence, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 4,699 [22] 4,699 [23]    
Cost $ 1,089 [22] $ 1,089 [23]    
Fair value $ 0 [22] $ 0 [23] 0 0
Investment, Identifier [Axis]: OnPoint, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.33%      
Spread (as a percent) [5],[25] 7.00%      
Principal [5],[25] $ 3,880      
Cost [5],[25] 3,845      
Fair value [5],[25] $ 3,845      
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,128 1,128    
Cost $ 1,128 $ 1,128    
Fair value $ 1,650 $ 1,128 $ 1,128 1,056
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [25] 15.48%      
Spread (as a percent) [25] 10.00%      
Principal [25] $ 5,200      
Cost [25] 5,178      
Fair value [25] $ 5,200      
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 10.00% 11.00% [26],[27],[39] 11.00%  
Principal [26],[27],[39]   $ 0    
Cost [26],[27],[39]   0    
Fair value $ 0 $ 0 [26],[27],[39] $ 0 0
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.48% 16.48% [27] 16.25%  
Spread (as a percent) 10.00% 11.00% [27] 11.00%  
Principal [27]   $ 5,440    
Cost [27]   5,411    
Fair value $ 5,200 $ 5,350 [27] $ 5,424 5,559
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 10,000 [29],[41] 10,000 [30],[40]    
Cost $ 10,000 [29],[41] $ 10,000 [30],[40]    
Fair value $ 15,060 [29],[41] $ 17,050 [30],[40] $ 16,560 11,750
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 11.00% [24],[25] 11.00% [26],[27] 11.00%  
Principal $ 0 [24],[25] $ 0 [26],[27]    
Cost 0 [24],[25] 0 [26],[27]    
Fair value $ 0 [24],[25] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.48% [25] 16.48% [27] 16.25%  
Spread (as a percent) 11.00% [25] 11.00% [27] 11.00%  
Principal $ 21,960 [25] $ 22,040 [27]    
Cost 21,868 [25] 21,925 [27]    
Fair value 21,960 [25] 22,040 [27] $ 22,800 23,429
Investment, Identifier [Axis]: Ospemifene Royalty Sub LLC, Secured Debt        
Schedule of Investments [Line Items]        
Principal 4,421 [5],[32] 4,443 [6],[33]    
Cost 4,421 [5],[32] 4,443 [6],[33]    
Fair value 35 [5],[32] 57 [6],[33]    
Investment, Identifier [Axis]: Other, Affiliate Investments        
Schedule of Investments [Line Items]        
Fair value 0 0 0 0
Investment, Identifier [Axis]: Other, Control Investments        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 0 0 0
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) 2,000 2,000    
Cost $ 2,150 $ 2,150    
Fair value $ 15,870 $ 16,980 18,070 18,950
Investment, Identifier [Axis]: PPL RVs, Inc., Common Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) 238,421 [41] 238,421 [40]    
Cost $ 238 [41] $ 238 [40]    
Fair value $ 514 [41] $ 368 [40] $ 250 238
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 8.75% [24],[25] 8.75% [26],[27] 8.75%  
Principal $ 0 [24],[25] $ 0 [26],[27]    
Cost (6) [24],[25] (7) [26],[27]    
Fair value $ 0 [24],[25] $ 0 [26],[27] $ 0 0
Investment, Identifier [Axis]: PPL RVs, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.23% [25] 14.23% [27] 13.63%  
Spread (as a percent) 8.75% [25] 8.75% [27] 8.75%  
Principal $ 19,021 [25] $ 19,877 [27]    
Cost 18,872 [25] 19,697 [27]    
Fair value $ 19,021 [25] $ 19,877 [27] $ 20,290 21,655
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.24% [5],[7],[13],[25],[31] 12.80% [6],[9],[14],[27],[65]    
Spread (as a percent) 6.75% [5],[7],[13],[25],[31] 7.25% [6],[9],[14],[27],[65]    
Principal $ 4,930 [5],[7],[13],[25],[31] $ 3,022 [6],[9],[14],[27],[65]    
Cost 4,812 [5],[7],[13],[25],[31] 2,885 [6],[9],[14],[27],[65]    
Fair value $ 4,916 [5],[7],[13],[25],[31] $ 2,998 [6],[9],[14],[27],[65]    
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.34% [5],[7],[13],[25] 12.88% [6],[9],[14],[27]    
Spread (as a percent) 6.75% [5],[7],[13],[25] 7.25% [6],[9],[14],[27]    
Principal $ 21,707 [5],[7],[13],[25] $ 26,478 [6],[9],[14],[27]    
Cost 21,428 [5],[7],[13],[25] 26,084 [6],[9],[14],[27]    
Fair value $ 21,646 [5],[7],[13],[25] $ 26,263 [6],[9],[14],[27]    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [6],[26],[27]   5.75%    
Principal [6],[26],[27]   $ 0    
Cost [6],[26],[27]   (79)    
Fair value [6],[26],[27]   $ 0    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27],[66]   11.24%    
Spread (as a percent) [6],[27],[66]   5.75%    
Principal [6],[27],[66]   $ 3,204    
Cost [6],[27],[66]   3,135    
Fair value [6],[27],[66]   $ 3,186    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.25%    
Spread (as a percent) [6],[27]   5.75%    
Principal [6],[27]   $ 18,597    
Cost [6],[27]   18,265    
Fair value [6],[27]   $ 18,490    
Investment, Identifier [Axis]: Peaches Holding Corporation, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,226      
Cost $ 7,221      
Fair value $ 7,221      
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 15,061 [29] 15,061 [30]    
Cost $ 13,000 [29] $ 13,000 [30]    
Fair value $ 53,340 [29] $ 44,090 [30] $ 44,090 43,260
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 5,000 $ 3,500    
Cost 4,997 3,497    
Fair value $ 5,000 $ 3,500 $ 3,500 0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 38,219 $ 20,000    
Cost 38,065 19,956    
Fair value $ 38,219 $ 20,000 $ 13,500 0
Investment, Identifier [Axis]: Pearl Meyer Topco LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 27,681 $ 27,681    
Cost 27,613 27,601    
Fair value $ 27,681 $ 27,681 $ 27,681 28,681
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 440 [29] 440    
Cost $ 12,540 [29] $ 12,540    
Fair value 15,330 [29] $ 12,540    
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   8.00%    
Principal 0 [24] $ 460    
Cost (14) [24] 444    
Fair value $ (14) [24] $ 444    
Investment, Identifier [Axis]: Pinnacle TopCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00%    
Principal $ 30,640 $ 30,640    
Cost 30,369 30,339    
Fair value $ 30,369 $ 30,339    
Investment, Identifier [Axis]: Power System Solutions, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,234 [5] 1,234 [6]    
Cost $ 1,234 [5] $ 1,234 [6]    
Fair value $ 2,140 [5] $ 1,160 [6]    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.50% [5],[24],[25] 6.75% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (73) [5],[24],[25] (82) [6],[26],[27]    
Fair value $ (73) [5],[24],[25] $ (82) [6],[26],[27]    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.84%      
Spread (as a percent) 6.50% [5],[25] 6.75% [6],[26],[27]    
Principal $ 6,155 [5],[25] $ 0 [6],[26],[27]    
Cost 5,999 [5],[25] (82) [6],[26],[27]    
Fair value $ 6,155 [5],[25] $ (82) [6],[26],[27]    
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.82% [5],[25] 12.12% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.75% [6],[27]    
Principal $ 18,326 [5],[25] $ 18,418 [6],[27]    
Cost 17,895 [5],[25] 17,930 [6],[27]    
Fair value $ 18,326 [5],[25] $ 18,418 [6],[27]    
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 10.83% [5],[25] 12.28% [6],[27]    
Spread (as a percent) 5.50% [5],[25] 6.85% [6],[27]    
Principal $ 7,920 [5],[25] $ 7,960 [6],[27]    
Cost 7,684 [5],[25] 7,750 [6],[27]    
Fair value $ 7,884 [5],[25] $ 7,960 [6],[27]    
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.83% [5],[25] 12.20% [6],[27]    
Spread (as a percent) 5.50% [5],[25] 6.85% [6],[27]    
Principal $ 756 [5],[25] $ 760 [6],[27]    
Cost 732 [5],[25] 738 [6],[27]    
Fair value $ 753 [5],[25] $ 760 [6],[27]    
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 10.83%      
Spread (as a percent) [5],[25] 5.50%      
Principal [5],[25] $ 760      
Cost [5],[25] 742      
Fair value [5],[25] $ 756      
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 10.58%      
Spread (as a percent) [5],[25] 5.25%      
Principal [5],[25] $ 863      
Cost [5],[25] 851      
Fair value [5],[25] $ 851      
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 $ 510 500 590
Investment, Identifier [Axis]: Principle Environmental, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 21,806 [29] 21,806 [30]    
Cost $ 5,709 [29] $ 5,709 [30]    
Fair value $ 10,800 [29] 10,750 [30] 10,480 12,420
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00%      
Principal $ 5,897      
Cost 5,841      
Fair value $ 5,841 5,829    
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal [26]   0    
Cost [26]   0    
Fair value   $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Principle Environmental, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate   13.00% 13.00%  
Principal   $ 5,897    
Cost   5,829    
Fair value   $ 5,829 $ 5,817 5,806
Investment, Identifier [Axis]: Purge Rite, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 32,813      
Cost [5] $ 33      
Fair value [5] $ 290      
Investment, Identifier [Axis]: Purge Rite, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 32,813 [5] 3,281,250 [6]    
Cost $ 3,248 [5] $ 3,281 [6]    
Fair value $ 3,248 [5] $ 3,281 [6]    
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 8.00% [5],[24],[25] 8.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (42) [5],[24],[25] (47) [6],[26],[27]    
Fair value $ (42) [5],[24],[25] $ (47) [6],[26],[27]    
Investment, Identifier [Axis]: Purge Rite, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.57% [5],[25] 13.70% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 8.00% [6],[27]    
Principal $ 9,844 [5],[25] $ 9,844 [6],[27]    
Cost 9,635 [5],[25] 9,610 [6],[27]    
Fair value $ 9,844 [5],[25] $ 9,610 [6],[27]    
Investment, Identifier [Axis]: Quality Lease Service, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,000 1,000    
Cost $ 7,546 $ 7,546    
Fair value 460 460 460 525
Investment, Identifier [Axis]: Quality Lease Service, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 0 0 0
Investment, Identifier [Axis]: Quality Lease Service, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.19% [5],[25] 12.22% [6],[27],[58]    
Spread (as a percent) 6.75% [5],[25] 6.75% [6],[27],[58]    
Principal $ 1,278 [5],[25] $ 824 [6],[27],[58]    
Cost 1,272 [5],[25] 816 [6],[27],[58]    
Fair value $ 1,222 [5],[25] $ 772 [6],[27],[58]    
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.19% [5],[25] 12.21% [6],[27]    
Spread (as a percent) 6.75% [5],[25] 6.75% [6],[27]    
Principal $ 13,369 [5],[25] $ 13,369 [6],[27]    
Cost 13,300 [5],[25] 13,280 [6],[27]    
Fair value $ 12,786 [5],[25] $ 12,512 [6],[27]    
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   13.21%    
Spread (as a percent) [6],[27]   7.75%    
Principal [6],[27]   $ 548    
Cost [6],[27]   536    
Fair value [6],[27]   $ 534    
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   13.19%    
Spread (as a percent) [6],[27]   7.75%    
Principal [6],[27]   $ 14,323    
Cost [6],[27]   14,260    
Fair value [6],[27]   $ 13,951    
Investment, Identifier [Axis]: RTIC Subsidiary Holdings, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   13.19%    
Spread (as a percent) [6],[27]   7.75%    
Principal [6],[27]   $ 574    
Cost [6],[27]   572    
Fair value [6],[27]   $ 559    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [12],[27]   11.14%    
Spread (as a percent) [12],[27]   5.50%    
Principal [12],[27]   $ 19,704    
Cost [12],[27]   19,595    
Fair value [12],[27]   $ 14,715    
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.82% [5],[25],[31] 18.47% [6],[27],[67]    
Spread (as a percent) 6.50% [5],[25],[31] 6.50% [6],[27],[67]    
Principal $ 5,067 [5],[25],[31] $ 3,167 [6],[27],[67]    
Cost 4,996 [5],[25],[31] 3,087 [6],[27],[67]    
Fair value $ 5,067 [5],[25],[31] $ 3,109 [6],[27],[67]    
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.82% [5],[25] 11.88% [6],[27]    
Spread (as a percent) 6.50% [5],[25] 6.50% [6],[27]    
Principal $ 39,598 [5],[25] $ 40,102 [6],[27]    
Cost 38,494 [5],[25] 38,858 [6],[27]    
Fair value $ 39,598 [5],[25] $ 39,376 [6],[27]    
Investment, Identifier [Axis]: River Aggregates, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,500 [41] 1,500 [40]    
Cost $ 369 [41] $ 369 [40]    
Fair value $ 3,790 [41] $ 3,710 [40] 3,620 3,620
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 0 6,140 14,880
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
PIK Rate 10.00%      
Principal $ 0 [24],[32] 0 [26]    
Cost (24) [24],[32] (26) [26]    
Fair value $ (24) [24],[32] $ (26) [26] $ (31) (35)
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% [32] 12.50% 12.50%  
PIK Rate [32] 10.00%      
Principal $ 33,660 [32] $ 34,110    
Cost 33,479 [32] 33,909    
Fair value $ 17,388 [32] $ 30,798 $ 34,325 35,404
Investment, Identifier [Axis]: Rocaceia, LLC (Quality Lease and Rental Holdings, LLC), Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares)   250    
Cost   $ 2,500    
Fair value   $ 0    
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.50% [5],[24],[25] 6.50% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (7) [5],[24],[25] (8) [6],[26],[27]    
Fair value $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.56% [5],[25] 12.16% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 6.50% [6],[27]    
PIK Rate [5],[25] 0.50%      
Principal $ 3,376 [5],[25] $ 3,376 [6],[27]    
Cost 3,323 [5],[25] 3,328 [6],[27]    
Fair value $ 3,369 [5],[25] $ 3,314 [6],[27]    
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.56% [5],[25] 14.16% [6],[27]    
Spread (as a percent) 9.00% [5],[25] 8.50% [6],[27]    
PIK Rate [5],[25] 0.50%      
Principal $ 3,376 [5],[25] $ 3,376 [6],[27]    
Cost 3,323 [5],[25] 3,328 [6],[27]    
Fair value $ 3,327 [5],[25] $ 3,266 [6],[27]    
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.52% [5],[25] 13.54% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
PIK Rate 2.00% [5],[25] 2.00% [6],[27]    
Principal $ 5,828 [5],[25] $ 5,769 [6],[27]    
Cost 5,814 [5],[25] 5,749 [6],[27]    
Fair value $ 5,828 [5],[25] $ 5,744 [6],[27]    
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.52% [5],[25] 13.54% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
PIK Rate 2.00% [5],[25] 2.00% [6],[27]    
Principal $ 7,787 [5],[25] $ 8,121 [6],[27]    
Cost 7,741 [5],[25] 8,059 [6],[27]    
Fair value $ 7,787 [5],[25] $ 8,086 [6],[27]    
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 165 [29] 165 [30]    
Cost $ 1,525 [29] $ 1,525 [30]    
Fair value $ 17,690 [29] $ 19,170 [30] 15,780 13,650
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.75% 11.25%    
Principal $ 2,250 $ 1,125    
Cost 2,235 1,108    
Fair value $ 2,250 $ 1,125 $ 0 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.62% [68] 12.47% [69] 12.78%  
Principal $ 67,661 [68] $ 54,536 [69]    
Cost 67,604 [68] 54,295 [69]    
Fair value 67,661 [68] 54,536 [69] $ 54,536 0
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Fair value $ 0 54,536    
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.62%      
Fair value $ 67,661 $ 0 0 89,786
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 638,710 [5] 638,710 [6]    
Cost $ 639 [5] $ 639 [6]    
Fair value $ 610 [5] $ 500 [6]    
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.98%      
Spread (as a percent) 7.50% [5],[25] 8.00% [6],[26],[27]    
Principal $ 1,533 [5],[25] $ 0 [6],[26],[27]    
Cost 1,495 [5],[25] (45) [6],[26],[27]    
Fair value $ 1,533 [5],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.98% [5],[25] 13.72% [6],[27]    
Spread (as a percent) 7.50% [5],[25] 8.00% [6],[27]    
Principal $ 15,648 [5],[25] $ 15,728 [6],[27]    
Cost 15,458 [5],[25] 15,506 [6],[27]    
Fair value $ 15,648 [5],[25] $ 15,728 [6],[27]    
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 70,000 [29] 70,000    
Cost $ 0 [29] $ 456    
Fair value $ 1,880 [29] $ 2,310 $ 1,850 1,530
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.00% 14.00% 14.00%  
Principal $ 18,080 $ 11,440    
Cost 17,900 11,345    
Fair value $ 18,080 $ 11,440 $ 13,040 13,840
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 864 [5] 863,636 [6]    
Cost $ 864 [5] $ 864 [6]    
Fair value $ 835 [5] $ 836 [6]    
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.46%    
Spread (as a percent) 6.00% [5],[24],[25] 6.00% [6],[27]    
Principal $ 0 [5],[24],[25] $ 446 [6],[27]    
Cost (44) [5],[24],[25] 394 [6],[27]    
Fair value $ (44) [5],[24],[25] $ 394 [6],[27]    
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.44% [5],[25] 11.70% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 6.00% [6],[27]    
Principal $ 33,249 [5],[25] $ 34,886 [6],[27]    
Cost 32,922 [5],[25] 34,472 [6],[27]    
Fair value $ 33,249 [5],[25] $ 34,886 [6],[27]    
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.04% [11],[25] 11.04% [12],[27]    
Spread (as a percent) 5.50% [11],[25] 5.50% [12],[27]    
Principal $ 7,936 [11],[25] $ 7,527 [12],[27]    
Cost 7,892 [11],[25] 7,475 [12],[27]    
Fair value $ 7,970 [11],[25] $ 7,527 [12],[27]    
Investment, Identifier [Axis]: Stellant Systems, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.19% [11],[25] 11.28% [12],[27]    
Spread (as a percent) 5.75% [11],[25] 5.75% [12],[27]    
Principal $ 9,131 [11],[25] $ 8,978 [12],[27]    
Cost 8,899 [11],[25] 8,717 [12],[27]    
Fair value $ 9,171 [11],[25] $ 8,977 [12],[27]    
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 5,907,649 [5] 5,907,649 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 0 [5] $ 0 [6] $ 0 0
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 8.50% [5],[32] 8.50% [6],[33] 8.50%  
PIK Rate 8.50% [5],[32] 8.50% [6],[33] 8.50%  
Principal $ 5,327 [5],[32] $ 5,327 [6],[33]    
Cost 4,884 [5],[32] 4,884 [6],[33]    
Fair value $ 1,644 [5],[32] $ 3,190 [6],[33] $ 4,770 4,556
Investment, Identifier [Axis]: Superior Rigging & Erecting Co., Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,636 1,636    
Cost $ 4,500 $ 4,500    
Fair value 6,430 $ 5,940 $ 5,640 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    
Cost   20,427    
Fair value $ 0 $ 20,427 $ 20,405 21,378
Investment, Identifier [Axis]: Team Public Choices, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.58% [11],[25] 10.88% [12],[27]    
Spread (as a percent) 5.00% [11],[25] 5.00% [12],[27]    
Principal $ 14,728 [11],[25] $ 14,804 [12],[27]    
Cost 14,540 [11],[25] 14,588 [12],[27]    
Fair value $ 14,741 [11],[25] $ 14,717 [12],[27]    
Investment, Identifier [Axis]: Tectonic Financial, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 200,000 [29] 200,000 [30]    
Cost $ 2,000 [29] $ 2,000 [30]    
Fair value $ 4,720 [29] $ 5,030 [30]    
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 6,605 6,605    
Cost $ 661 $ 661    
Fair value $ 0 $ 0 6,290 7,681
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 5,643 5,643    
Cost $ 564 $ 564    
Fair value $ 0 $ 0 $ 533 0
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3        
Schedule of Investments [Line Items]        
Units (in shares) 544 544    
Cost $ 9,245 $ 9,245    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32],[38] 12.00% [39] 12.00%  
PIK Rate [32],[38] 12.00%      
Principal $ 1,840 [32],[38] $ 1,840 [39]    
Cost 1,840 [32],[38] 1,840 [39]    
Fair value $ 1,726 [32],[38] $ 1,726 [39] $ 1,840 1,840
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% [32],[38] 12.00% [39] 12.00%  
PIK Rate [32],[38] 12.00%      
Principal $ 15,200 [32],[38] $ 15,200 [39]    
Cost 15,200 [32],[38] 15,200 [39]    
Fair value $ 4,657 [32],[38] $ 14,262 [39] $ 15,127 15,120
Investment, Identifier [Axis]: Televerde, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 460 460 [30]    
Cost $ 1,290 $ 1,290 [30]    
Fair value $ 2,570 $ 4,734 [30] 6,082 5,408
Investment, Identifier [Axis]: Televerde, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 248 248    
Cost $ 718 $ 718    
Fair value $ 1,793 $ 1,794 1,794 1,794
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,000,000 [5],[41] 1,000,000 [6],[40]    
Cost $ 1,000 [5],[41] $ 1,000 [6],[40]    
Fair value $ 2,680 [5],[41] $ 2,840 [6],[40]    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Fair value     6,400 6,400
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) 236,110 172,110    
Cost $ 236 $ 172    
Fair value 236 172    
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) 1,280,000 [29] 1,280,000 [30]    
Cost $ 6,400 [29] $ 6,400 [30]    
Fair value 6,400 [29] 6,400 [30]    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2.1        
Schedule of Investments [Line Items]        
Fair value 236 $ 172    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   13.00%    
Principal 0 [24] $ 160    
Cost (8) [24] 150    
Fair value $ (8) [24] $ 150 $ (12) 106
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 13.00% 13.00%  
Principal $ 6,321 $ 7,521    
Cost 6,290 7,475    
Fair value $ 6,161 $ 7,347 $ 8,728 9,442
Investment, Identifier [Axis]: Titan Meter Midco Corp., Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 1,218,750      
Cost [5] $ 1,219      
Fair value [5] $ 1,219      
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.50%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (118)      
Fair value [5],[24],[25] $ (118)      
Investment, Identifier [Axis]: Titan Meter Midco Corp., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.83%      
Spread (as a percent) [5],[25] 6.50%      
Principal [5],[25] $ 34,098      
Cost [5],[25] 32,983      
Fair value [5],[25] $ 33,417      
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 615 [29] 615 [30]    
Cost $ 4,655 [29] $ 4,655 [30]    
Fair value 9,770 [29] 12,740 [30] 11,770 7,800
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [24] 0 [26]    
Cost (1) [24] (1) [26]    
Fair value $ 0 [24] $ 0 [26] $ 0 0
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.50% 12.00% 12.00%  
Principal $ 7,920 $ 7,920    
Cost 7,842 7,911    
Fair value $ 7,920 $ 7,920 $ 7,920 7,920
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.50% [11],[25],[32] 12.53% [12],[27],[33]    
Spread (as a percent) 7.15% [11],[25],[32] 7.15% [12],[27],[33]    
PIK Rate 6.00% [11],[25],[32] 6.00% [12],[27],[33]    
Principal $ 9,871 [11],[25],[32] $ 9,298 [12],[27],[33]    
Cost 3,628 [11],[25],[32] 3,585 [12],[27],[33]    
Fair value 4,025 [11],[25],[32] 3,333 [12],[27],[33]    
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2        
Schedule of Investments [Line Items]        
Principal 1,003 [11],[32] 946 [12],[33]    
Cost 20 [11],[32] 20 [12],[33]    
Fair value $ 0 [11],[32] $ 0 [12],[33]    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.46%    
Spread (as a percent) [6],[27]   6.00%    
Principal [6],[27]   $ 23,101    
Cost [6],[27]   22,817    
Fair value [6],[27]   $ 23,101    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.96%    
Spread (as a percent) [6],[27]   6.50%    
Principal [6],[27]   $ 9,017    
Cost [6],[27]   8,862    
Fair value [6],[27]   $ 9,017    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.96%    
Spread (as a percent) [6],[27]   6.50%    
Principal [6],[27]   $ 4,689    
Cost [6],[27]   4,601    
Fair value [6],[27]   $ 4,689    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 945,507 [11] 945,507 [12]    
Cost $ 0 [11] $ 0 [12]    
Fair value $ 0 [11] $ 0 [12] $ 0 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) 1,133,102 [11],[29] 1,133,102 [12],[30]    
Total Rate 20.00% [11],[29] 20.00% [12],[30] 20.00%  
PIK Rate 20.00% [11],[29] 20.00% [12],[30] 20.00%  
Cost $ 2,880 [11],[29] $ 2,609 [12],[30]    
Fair value $ 2,880 [11],[29] $ 2,833 [12],[30] $ 2,833 2,833
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) 1,521,122 [11] 1,521,122 [12]    
Total Rate 20.00% [11] 20.00% [12] 20.00%  
PIK Rate 20.00% [11] 20.00% [12] 20.00%  
Cost $ 2,188 [11] $ 2,188 [12]    
Fair value $ 3,838 [11] $ 3,698 [12] $ 3,659 1,991
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 3        
Schedule of Investments [Line Items]        
Units (in shares) 2,281,682 [11] 2,281,682 [12]    
Total Rate 19.00% [11] 19.00% [12] 19.00%  
PIK Rate 19.00% [11] 19.00% [12] 19.00%  
Cost $ 3,667 [11] $ 3,667 [12]    
Fair value $ 0 [11] $ 0 [12] $ 0 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred Stock 4        
Schedule of Investments [Line Items]        
Units (in shares) 4,336,866 [11] 4,336,866 [12]    
Total Rate 13.50% [11] 13.50% [12] 13.50%  
PIK Rate 13.50% [11] 13.50% [12] 13.50%  
Cost $ 7,924 [11] $ 7,924 [12]    
Fair value $ 0 [11] $ 0 [12] $ 0 0
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt        
Schedule of Investments [Line Items]        
Total Rate     15.00%  
PIK Rate     15.00%  
Fair value     $ 6,159 4,592
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.00% [11] 15.00% [12]    
PIK Rate 15.00% [11] 15.00% [12]    
Principal $ 1,846 [11] $ 1,714 [12]    
Cost 1,846 [11] 1,714 [12]    
Fair value $ 4,021 [11] $ 3,889 [12]    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Convertible Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.00% [11] 15.00% [12]    
PIK Rate 15.00% [11] 15.00% [12]    
Principal $ 905 [11] $ 840 [12]    
Cost 905 [11] 840 [12]    
Fair value $ 1,972 [11] $ 1,908 [12]    
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent)     7.50%  
Fair value     $ 0 382
Investment, Identifier [Axis]: UniTek Global Services, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent)     7.50%  
Fair value     $ 0 1,712
Investment, Identifier [Axis]: UnionRock Energy Fund II, LP, LP Interests        
Schedule of Investments [Line Items]        
Units (as a percent) 11.11% [7],[8],[44] 11.11% [9],[10],[45]    
Cost $ 3,552 [7],[8],[44] $ 3,719 [9],[10],[45]    
Fair value $ 5,724 [7],[8],[44] $ 5,694 [9],[10],[45] 5,224 5,855
Investment, Identifier [Axis]: UnionRock Energy Fund III, LP, LP Interests        
Schedule of Investments [Line Items]        
Units (as a percent) 25.00% [7],[8],[44] 25.00% [9],[10],[45]    
Cost $ 4,993 [7],[8],[44] $ 2,493 [9],[10],[45]    
Fair value $ 6,332 [7],[8],[44] $ 2,838 [9],[10],[45] 150 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 4,000,000 [5],[41] 4,000,000 [6],[40]    
Cost $ 4,000 [5],[41] $ 4,000 [6],[40]    
Fair value $ 0 [5],[41] $ 0 [6],[40] $ 0 0
Investment, Identifier [Axis]: Universal Wellhead Services Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 716,949 [5],[41] 716,949 [6],[40]    
Total Rate 14.00% [5],[41] 14.00% [6],[40] 14.00%  
PIK Rate 14.00% [5],[41] 14.00% [6],[40] 14.00%  
Cost $ 1,032 [5],[41] $ 1,032 [6],[40]    
Fair value $ 0 [5],[41] 150 [6],[40] $ 220 220
Investment, Identifier [Axis]: Urgent DSO LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) [29] 4,000      
Total Rate [29] 9.00%      
PIK Rate [29] 9.00%      
Cost [29] $ 4,136      
Fair value $ 4,136 [29] 0    
Investment, Identifier [Axis]: Urgent DSO LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.50%      
Principal $ 8,800      
Cost 8,718      
Fair value $ 8,718 $ 0    
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.81% [5],[25] 12.99% [6],[27]    
Spread (as a percent) 7.50% [5],[25] 7.50% [6],[27]    
Principal $ 4,000 [5],[25] $ 4,000 [6],[27]    
Cost 3,909 [5],[25] 3,899 [6],[27]    
Fair value $ 4,000 [5],[25] $ 4,000 [6],[27]    
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,038,462 [5],[29] 1,038,462 [6],[30]    
Cost $ 1,038 [5],[29] $ 1,038 [6],[30]    
Fair value $ 2,570 [5],[29] $ 2,570 [6],[30]    
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 12,240 [29],[41] 12,240 [30],[40]    
Cost $ 12,240 [29],[41] $ 12,240 [30],[40]    
Fair value $ 12,240 [29],[41] $ 12,240 [30],[40] $ 11,840 11,940
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 6.00% [24],[25] 6.00% [26],[27],[39] 6.00%  
Principal $ 0 [24],[25] $ 0 [26],[27],[39]    
Cost 0 [24],[25] 0 [26],[27],[39]    
Fair value $ 0 [24],[25] $ 0 [26],[27],[39] $ (10) (21)
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.50% 11.50% 11.50%  
Principal $ 27,040 $ 28,200    
Cost 26,909 28,035    
Fair value $ 26,909 $ 28,035 $ 28,958 30,161
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 5.25% [11],[24],[25] 5.25% [12],[26],[27]    
Principal $ 0 [11],[24],[25] $ 0 [12],[26],[27]    
Cost (296) [11],[24],[25] (408) [12],[26],[27]    
Fair value $ (296) [11],[24],[25] $ (408) [12],[26],[27]    
Investment, Identifier [Axis]: Veregy Consolidated, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.59% [11],[25] 11.64% [12],[27]    
Spread (as a percent) 6.00% [11],[25] 6.00% [12],[27]    
Principal $ 17,740 [11],[25] $ 17,433 [12],[27]    
Cost 17,523 [11],[25] 17,195 [12],[27]    
Fair value $ 17,794 [11],[25] $ 15,775 [12],[27]    
Investment, Identifier [Axis]: Vision Interests, Inc., Series A Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 3,000,000 3,000,000 [30]    
Cost $ 3,000 $ 3,000 [30]    
Fair value $ 3,000 $ 3,000 [30] 3,000 3,000
Investment, Identifier [Axis]: Vistar Media, Inc., Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 70,207 [5] 70,207 [6]    
Cost $ 767 [5] $ 767 [6]    
Fair value $ 2,320 [5] $ 2,180 [6]    
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   12.63%    
Spread (as a percent) [6],[27]   7.00%    
Principal [6],[27]   $ 42,500    
Cost [6],[27]   41,455    
Fair value [6],[27]   $ 41,455    
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25],[70] 12.59%      
Principal [5],[25],[70] $ 5,409      
Cost [5],[25],[70] 5,272      
Fair value [5],[25],[70] $ 5,372      
Investment, Identifier [Axis]: Vitesse Systems, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 12.46%      
Spread (as a percent) [5],[25] 7.00%      
Principal [5],[25] $ 42,288      
Cost [5],[25] 41,352      
Fair value [5],[25] $ 42,000      
Investment, Identifier [Axis]: Volusion, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,802,780 1,802,780    
Cost $ 2,576 $ 2,576    
Fair value $ 0 $ 0 0 0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 5,097,595 5,097,595    
Cost $ 6,529 $ 8,646    
Fair value 7,000 7,250 0 0
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) 142,512 142,512    
Cost $ 0 $ 0    
Fair value 0 0 10,740 0
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2.1        
Schedule of Investments [Line Items]        
Fair value $ 7,000 $ 7,250    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3        
Schedule of Investments [Line Items]        
Units (in shares) 4,876,670 4,876,670    
Cost $ 14,000 $ 14,000    
Fair value $ 0 $ 0 $ 0 0
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00%    
Principal $ 2,100 $ 2,100    
Cost 2,100 2,100    
Fair value $ 2,100 $ 2,100    
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]        
Fair value     0 14,914
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: Volusion, LLC, Warrants        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 400,000 [5] 400,000 [6]    
Cost $ 400 [5] $ 400 [6]    
Fair value $ 880 [5] $ 731 [6]    
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) 7.00% [5],[24],[25] 7.00% [6],[26],[27]    
Principal $ 0 [5],[24],[25] $ 0 [6],[26],[27]    
Cost (3) [5],[24],[25] (4) [6],[26],[27]    
Fair value $ (3) [5],[24],[25] $ (4) [6],[26],[27]    
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.45% [5],[25] 12.54% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 3,414 [5],[25] $ 3,723 [6],[27]    
Cost 3,385 [5],[25] 3,685 [6],[27]    
Fair value $ 3,414 [5],[25] $ 3,723 [6],[27]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.73% [5],[25] 11.50% [6],[27],[61]    
Spread (as a percent) 6.25% [5],[25] 6.00% [6],[27],[61]    
Principal $ 2,223 [5],[25] $ 1,853 [6],[27],[61]    
Cost 2,200 [5],[25] 1,825 [6],[27],[61]    
Fair value $ 2,223 [5],[25] $ 1,853 [6],[27],[61]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.73% [5],[25] 11.50% [6],[27]    
Spread (as a percent) 6.25% [5],[25] 6.00% [6],[27]    
Principal $ 384 [5],[25] $ 386 [6],[27]    
Cost 365 [5],[25] 364 [6],[27]    
Fair value $ 384 [5],[25] $ 386 [6],[27]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.73% [5],[25] 11.50% [6],[27]    
Spread (as a percent) 6.25% [5],[25] 6.00% [6],[27]    
Principal $ 15,805 [5],[25] $ 15,886 [6],[27]    
Cost 15,680 [5],[25] 15,736 [6],[27]    
Fair value $ 15,805 [5],[25] $ 15,886 [6],[27]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 11.73% [5],[25] 11.50% [6],[27]    
Spread (as a percent) 6.25% [5],[25] 6.00% [6],[27]    
Principal $ 12,642 [5],[25] $ 12,707 [6],[27]    
Cost 12,541 [5],[25] 12,585 [6],[27]    
Fair value $ 12,642 [5],[25] $ 12,707 [6],[27]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,541,400 [5],[29] 1,541,400 [6]    
Cost $ 1,541 [5],[29] $ 1,541 [6]    
Fair value $ 4,580 [5],[29] $ 2,990 [6]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 10.33% [5],[25],[28] 11.34% [6],[27],[71]    
Spread (as a percent) 5.00% [5],[25],[28] 6.00% [6],[27],[71]    
Principal $ 2,393 [5],[25],[28] $ 2,405 [6],[27],[71]    
Cost 2,355 [5],[25],[28] 2,365 [6],[27],[71]    
Fair value $ 2,393 [5],[25],[28] $ 2,405 [6],[27],[71]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.33% [5],[25] 11.35% [6],[27]    
Spread (as a percent) 5.00% [5],[25] 6.00% [6],[27]    
Principal $ 10,604 [5],[25] $ 10,658 [6],[27]    
Cost 10,463 [5],[25] 10,512 [6],[27]    
Fair value $ 10,604 [5],[25] $ 10,658 [6],[27]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.33% [5],[25] 11.35% [6],[27]    
Spread (as a percent) 5.00% [5],[25] 6.00% [6],[27]    
Principal $ 5,277 [5],[25] $ 5,303 [6],[27]    
Cost 5,179 [5],[25] 5,199 [6],[27]    
Fair value $ 5,277 [5],[25] $ 5,303 [6],[27]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.56% [5],[25] 12.64% [6],[27],[72]    
Spread (as a percent) 8.00% [5],[25] 7.00% [6],[27],[72]    
Principal $ 667 [5],[25] $ 2,222 [6],[27],[72]    
Cost 618 [5],[25] 2,198 [6],[27],[72]    
Fair value $ 655 [5],[25] $ 2,222 [6],[27],[72]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.56% [5],[25] 12.66% [6],[27]    
Spread (as a percent) 8.00% [5],[25] 7.00% [6],[27]    
Principal $ 1,874 [5],[25] $ 2,067 [6],[27]    
Cost 1,851 [5],[25] 2,036 [6],[27]    
Fair value $ 1,841 [5],[25] $ 2,067 [6],[27]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.56% [5],[25] 12.66% [6],[27]    
Spread (as a percent) 7.00% [5],[25] 7.00% [6],[27]    
Principal $ 7,240 [5],[25] $ 9,300 [6],[27]    
Cost 7,102 [5],[25] 9,193 [6],[27]    
Fair value $ 7,112 [5],[25] $ 9,300 [6],[27]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 14.56%      
Spread (as a percent) [5],[25] 9.00%      
Principal [5],[25] $ 7,240      
Cost [5],[25] 7,102      
Fair value [5],[25] $ 7,112      
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,845 [29] 3,845 [30]    
Cost $ 3,845 [29] $ 3,845 [30]    
Fair value $ 3,845 [29] $ 3,845 [30] $ 3,845 3,845
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00% 13.00%  
Principal $ 12,123 $ 12,123    
Cost 12,040 12,028    
Fair value $ 12,040 $ 12,028 $ 14,154 14,140
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.44%      
Spread (as a percent) 6.00% [5],[25] 5.25% [6],[26],[27]    
Principal $ 23,936 [5],[25] $ 0 [6],[26],[27]    
Cost 23,635 [5],[25] (163) [6],[26],[27]    
Fair value $ 23,935 [5],[25] $ 0 [6],[26],[27]    
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.43% [5],[25] 11.22% [6],[27]    
Spread (as a percent) 6.00% [5],[25] 5.75% [6],[27]    
Principal $ 37,635 [5],[25] $ 24,057 [6],[27]    
Cost 37,205 [5],[25] 23,713 [6],[27]    
Fair value $ 37,635 [5],[25] $ 24,057 [6],[27]    
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [6],[27]   11.25%    
Spread (as a percent) [6],[27]   5.75%    
Principal [6],[27]   $ 37,828    
Cost [6],[27]   37,336    
Fair value [6],[27]   $ 37,828    
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.92% [11],[25] 13.00% [12],[27]    
Spread (as a percent) 7.50% [11],[25] 7.50% [12],[27]    
Principal $ 11,092 [11],[25] $ 11,167 [12],[27]    
Cost 10,890 [11],[25] 10,970 [12],[27]    
Fair value $ 10,290 [11],[25] $ 10,220 [12],[27]    
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.00%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (206)      
Fair value [5],[24],[25] $ (206)      
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Spread (as a percent) [5],[24],[25] 6.00%      
Principal [5],[24],[25] $ 0      
Cost [5],[24],[25] (181)      
Fair value [5],[24],[25] $ (181)      
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.26%      
Spread (as a percent) [5],[25] 6.00%      
Principal [5],[25] $ 6,626      
Cost [5],[25] 6,496      
Fair value [5],[25] $ 6,496      
Investment, Identifier [Axis]: ZRG Partners, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[25] 11.33%      
Spread (as a percent) [5],[25] 6.00%      
Principal [5],[25] $ 47,498      
Cost [5],[25] 46,564      
Fair value [5],[25] $ 46,564      
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 $ 0 $ 70 240
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 450 $ 450    
Cost 450 450    
Fair value $ 450 $ 450 $ 450 450
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 6.50% 6.50% 6.50%  
Principal $ 1,000 $ 1,000    
Cost 1,000 1,000    
Fair value $ 945 $ 945 $ 945 945
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.00% 14.00% 14.00%  
Principal $ 2,750 $ 2,750    
Cost 2,750 2,750    
Fair value $ 1,710 $ 2,080 $ 2,461 2,676
Investment, Identifier [Axis]: Ziegler’s NYPD, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 587 [22] 587 [23]    
Cost $ 600 [22] $ 600 [23]    
Fair value $ 0 [22] $ 0 [23] $ 0 $ 0
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.69% [5],[25] 12.71% [6],[27],[73]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27],[73]    
PIK Rate [5],[25] 1.50%      
Principal $ 17,351 [5],[25] $ 17,279 [6],[27],[73]    
Cost 17,351 [5],[25] 17,246 [6],[27],[73]    
Fair value $ 16,633 [5],[25] $ 16,380 [6],[27],[73]    
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.69% [5],[25] 12.71% [6],[27],[73]    
Spread (as a percent) 7.25% [5],[25] 7.25% [6],[27],[73]    
PIK Rate [5],[25] 1.50%      
Principal $ 4,343 [5],[25] $ 4,331 [6],[27],[73]    
Cost 4,343 [5],[25] 4,327 [6],[27],[73]    
Fair value $ 4,164 [5],[25] $ 4,067 [6],[27],[73]    
[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] Private Loan portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Private Loan portfolio investments.
[6] Private Loan portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Private Loan portfolio investments.
[7] 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.
[8] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments.
[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] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments.
[12] Middle Market portfolio investment. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for a description of Middle Market portfolio investments.
[13] Portfolio company headquarters are located outside of the United States.
[14] Portfolio company headquarters are located outside of the United States.
[15] Money market fund interests included in cash and cash equivalents.
[16] 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.
[17] 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.
[18] 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.
[19] 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.
[20] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[21] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[22]
(27)Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[23] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[24] The position is unfunded and no interest income is being earned as of June 30, 2024. The position may earn a nominal unused facility fee on committed amounts.
[25] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 93% of the loans (based on the par amount) contain Term SOFR (“SOFR”) floors which range between 0.50% and 5.25%, with a weighted-average floor of 1.24%.
[26] 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.
[27] 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 SOFR floors which range between 0.50% and 2.00%, with a weighted-average floor of 1.20%.
[28] 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 June 30, 2024.
[29] Income producing through dividends or distributions.
[30] Income producing through dividends or distributions.
[31] 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 June 30, 2024.
[32] Non-accrual and non-income producing debt investment.
[33] Non-accrual and non-income producing debt investment.
[34]
(35)Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit.
[35] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit.
[36]
(33)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 3.00%.
[38] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[39] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[40] Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[41]
(29)Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[42] 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.
[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+8.00% (Floor 1.50%) per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[44]
(30)Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[45] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[46] 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.
[47] 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.
[48]
(36)Effective yield as of June 30, 2024 was approximately 4.94% on the Dreyfus Government Cash Management.
[49] Effective yield as of December 31, 2023 was approximately 4.98% on the Dreyfus Government Cash Management.
[50]
(37)Effective yield as of June 30, 2024 was approximately 4.97% on the Fidelity Government Fund.
[51] Effective yield as of December 31, 2023 was approximately 5.01% on the Fidelity Government Fund.
[52]
(31)Effective yield as of June 30, 2024 was approximately 4.95% on the Fidelity Treasury.
[53] Effective yield as of December 31, 2023 was approximately 4.99% on the Fidelity Treasury.
[54] 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.
[55] 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.
[56] Index based floating interest rate is subject to contractual maximum base rate of 1.50%.
[57] 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.
[58] 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.
[59] 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.
[60] 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.
[61] 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.
[62] 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.
[63] 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.
[64] 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.
[65] 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.
[66] 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.
[67] 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.
[68] The Company has entered into an intercreditor agreement that entitles the Company to the “last out” tranche of the first lien secured loans, whereby the “first out” tranche will receive priority as to the “last out” tranche with respect to payments of principal, interest, and any other amounts due thereunder. Therefore, the Company receives a higher interest rate than the contractual stated interest rate of 11.75% per the credit agreement and the Consolidated Schedule of Investments above reflects such higher rate.
[69] 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.
[70] RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. As of June 30, 2024, the facility had contracts running under the terms SOFR+7.00% (Floor 1.00%) and Prime+6.00% (Floor 2.00%). The rate presented represents a weighted-average rate for borrowings under the facility, as of June 30, 2024.
[71] 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.
[72] 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.
[73] 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.