Quarterly report pursuant to Section 13 or 15(d)

Consolidated Schedule of Investments

v3.23.3
Consolidated Schedule of Investments - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Schedule of Investments [Line Items]        
Cost $ 1,065,140 [1] $ 1,059,886 [2]    
Fair value $ 1,103,813 [3] $ 1,068,143 [4]    
Investment owned, percent of net assets 179.90% 175.20%    
GRT Rubber Technologies LLC        
Schedule of Investments [Line Items]        
Cost $ 27,057 $ 26,512    
Fair value 42,672 42,163    
Volusion, LLC        
Schedule of Investments [Line Items]        
Cost 12,610 14,451    
Fair value 4,910 6,392    
Analytical Systems Keco Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,558 2,619    
Fair value 2,212 2,013    
Batjer TopCo, LLC        
Schedule of Investments [Line Items]        
Cost 1,683 1,659    
Fair value 1,925 1,659    
Brewer Crane Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,476 2,561    
Fair value 2,776 3,261    
Centre Technologies Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 5,892 5,262    
Fair value 6,994 5,901    
Chamberlin Holding LLC        
Schedule of Investments [Line Items]        
Cost 7,367 7,531    
Fair value 11,325 10,642    
Clad-Rex Steel, LLC        
Schedule of Investments [Line Items]        
Cost 4,400 4,753    
Fair value 4,098 5,092    
Cody Pools, Inc.        
Schedule of Investments [Line Items]        
Cost 9,429 9,126    
Fair value 24,667 21,705    
Colonial Electric Company LLC        
Schedule of Investments [Line Items]        
Cost 7,679 7,649    
Fair value 7,962 8,019    
Datacom, LLC        
Schedule of Investments [Line Items]        
Cost 1,238 1,210    
Fair value 935 1,190    
Digital Products Holdings LLC        
Schedule of Investments [Line Items]        
Cost 6,061 6,253    
Fair value 6,128 6,337    
Direct Marketing Solutions, Inc.        
Schedule of Investments [Line Items]        
Cost 7,375 7,401    
Fair value 10,650 10,910    
Gamber-Johnson Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 18,339 20,170    
Fair value 34,520 28,740    
GFG Group, LLC        
Schedule of Investments [Line Items]        
Cost 3,820 4,004    
Fair value 5,236 4,626    
Gulf Publishing Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,920 2,920    
Fair value 1,271 1,521    
IG Investor, LLC        
Schedule of Investments [Line Items]        
Cost 12,734      
Fair value 12,734      
Integral Energy Services        
Schedule of Investments [Line Items]        
Cost [5] 19,784      
Fair value [5] 17,937      
Kickhaefer Manufacturing Company, LLC        
Schedule of Investments [Line Items]        
Cost 9,193 9,344    
Fair value 8,829 8,567    
MH Corbin Holding LLC        
Schedule of Investments [Line Items]        
Cost 3,970 4,139    
Fair value 1,356 1,137    
Mystic Logistics Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,116 2,116    
Fair value 8,224 7,144    
NexRev LLC        
Schedule of Investments [Line Items]        
Cost 4,484 4,881    
Fair value 4,021 2,399    
NuStep, LLC        
Schedule of Investments [Line Items]        
Cost 8,569 8,765    
Fair value 9,104 9,003    
Oneliance, LLC        
Schedule of Investments [Line Items]        
Cost 1,646 1,644    
Fair value 1,639 1,644    
Orttech Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 7,984 8,312    
Fair value 9,810 8,752    
Robbins Bros. Jewelry, Inc.        
Schedule of Investments [Line Items]        
Cost 5,015 5,124    
Fair value 4,052 5,544    
SI East, LLC        
Schedule of Investments [Line Items]        
Cost 19,136 30,201    
Fair value 24,644 34,479    
Student Resource Center, LLC        
Schedule of Investments [Line Items]        
Cost 5,426 [5] 5,063 [6]    
Fair value 5,437 [5] 5,063 [6]    
Tedder Industries, LLC        
Schedule of Investments [Line Items]        
Cost 6,797 6,568    
Fair value 5,477 6,160    
Trantech Radiator Topco, LLC        
Schedule of Investments [Line Items]        
Cost 3,134 3,121    
Fair value 5,330 3,930    
VVS Holdco LLC        
Schedule of Investments [Line Items]        
Cost 9,874 10,376    
Fair value 9,874 10,406    
AAC Holdings, Inc.        
Schedule of Investments [Line Items]        
Cost 7,932 [7] 7,111 [8]    
Fair value 4,636 [7] 4,110 [8]    
AB Centers Acquisition Corporation        
Schedule of Investments [Line Items]        
Cost 3,133 [5] 2,002 [6]    
Fair value 3,274 [5] 2,064 [6]    
Acumera, Inc.        
Schedule of Investments [Line Items]        
Cost 11,961 [5] 5,859 [6]    
Fair value 12,155 [5] 5,995 [6]    
Adams Publishing Group, LLC        
Schedule of Investments [Line Items]        
Cost 3,521 [5] 3,384 [6]    
Fair value 3,485 [5] 3,391 [6]    
AMEREQUIP LLC.        
Schedule of Investments [Line Items]        
Cost 1,821 [5] 2,106 [6]    
Fair value 1,828 [5] 2,105 [6]    
American Health Staffing Group, Inc.        
Schedule of Investments [Line Items]        
Cost 8,146 [5] 8,193 [6]    
Fair value 8,197 [5] 8,258 [6]    
American Nuts, LLC        
Schedule of Investments [Line Items]        
Cost 8,501 [5] 8,833 [6]    
Fair value 5,880 [5] 8,309 [6]    
American Teleconferencing Services, Ltd.        
Schedule of Investments [Line Items]        
Cost 13,826 [7] 13,826 [8]    
Fair value 635 [7] 794 [8]    
ArborWorks, LLC        
Schedule of Investments [Line Items]        
Cost 19,364 [5] 18,091 [6]    
Fair value 10,893 [5] 15,408 [6]    
Archer Systems, LLC        
Schedule of Investments [Line Items]        
Cost 1,807 [5] 2,223 [6]    
Fair value 1,862 [5] 2,228 [6]    
ATS Operating, LLC        
Schedule of Investments [Line Items]        
Cost 2,020 [5] 1,914 [6]    
Fair value 2,030 [5] 1,920 [6]    
AVEX Aviation Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 3,653 [5] 3,918 [6]    
Fair value 3,649 [5] 3,924 [6]    
BBB Tank Services, LLC        
Schedule of Investments [Line Items]        
Cost 1,391 1,441    
Fair value 700 722    
Berry Aviation, Inc.        
Schedule of Investments [Line Items]        
Cost 0 [5] 1,350 [6]    
Fair value 3,040 [5] 5,021 [6]    
Bettercloud, Inc.        
Schedule of Investments [Line Items]        
Cost 8,259 [5] 7,826 [6]    
Fair value 8,034 [5] 7,969 [6]    
Bluestem Brands, Inc.        
Schedule of Investments [Line Items]        
Cost 6,843 [7] 3,566 [8]    
Fair value 7,460 [7] 9,247 [8]    
Boccella Precast Products LLC        
Schedule of Investments [Line Items]        
Cost 644 644    
Fair value 613 821    
Bond Brand Loyalty ULC        
Schedule of Investments [Line Items]        
Cost [5],[9],[10] 8,295      
Fair value [5],[9],[10] 8,361      
Brightwood Capital Fund Investments        
Schedule of Investments [Line Items]        
Cost 11,007 [10],[11] 11,186 [12],[13]    
Fair value 10,729 [10],[11] 10,658 [12],[13]    
Buca C, LLC        
Schedule of Investments [Line Items]        
Cost 14,530 14,780    
Fair value 8,292 8,345    
Burning Glass Intermediate Holding Company, Inc.        
Schedule of Investments [Line Items]        
Cost 13,290 [5] 13,051 [6]    
Fair value 13,464 [5] 13,255 [6]    
Cadence Aerospace LLC        
Schedule of Investments [Line Items]        
Cost [5] 6,607      
Fair value [5] 6,614      
CAI Software LLC        
Schedule of Investments [Line Items]        
Cost 379 379    
Fair value 379 379    
Career Team Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,693 2,693    
Fair value 2,693 2,693    
CaseWorthy, Inc.        
Schedule of Investments [Line Items]        
Cost 4,629 [5] 4,627 [6]    
Fair value 4,666 [5] 4,645 [6]    
Channel Partners Intermediateco, LLC        
Schedule of Investments [Line Items]        
Cost 4,216 [5] 3,692 [6]    
Fair value 4,153 [5] 3,708 [6]    
Classic H&G Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 7,344 7,321    
Fair value 9,959 12,119    
Computer Data Source, LLC        
Schedule of Investments [Line Items]        
Cost 19,372 [5] 19,480 [6]    
Fair value 18,830 [5] 18,272 [6]    
Dalton US Inc.        
Schedule of Investments [Line Items]        
Cost 1,357 [5] 1,088 [6]    
Fair value 1,392 [5] 1,107 [6]    
DMA Industries, LLC        
Schedule of Investments [Line Items]        
Cost 6,419 6,703    
Fair value 6,820 7,120    
DTE Enterprises, LLC        
Schedule of Investments [Line Items]        
Cost 2,028 [5] 8,046 [6]    
Fair value 1,511 [5] 7,518 [6]    
Dynamic Communities, LLC        
Schedule of Investments [Line Items]        
Cost 3,771 [5] 3,487 [6]    
Fair value 3,535 [5] 3,487 [6]    
Elgin AcquireCo, LLC        
Schedule of Investments [Line Items]        
Cost 2,083 2,201    
Fair value 2,106 2,201    
Engineering Research & Consulting, LLC        
Schedule of Investments [Line Items]        
Cost 5,033 [5] 5,097 [6]    
Fair value 5,121 [5] 5,200 [6]    
Escalent, Inc.        
Schedule of Investments [Line Items]        
Cost [5] 6,931      
Fair value [5] 7,054      
Event Holdco, LLC        
Schedule of Investments [Line Items]        
Cost 3,974 [5] 3,968 [6]    
Fair value 4,000 [5] 3,799 [6]    
Flip Electronics LLC        
Schedule of Investments [Line Items]        
Cost 13,214 [5] 12,873 [6]    
Fair value 13,419 [5] 13,145 [6]    
Hawk Ridge Systems, LLC        
Schedule of Investments [Line Items]        
Cost 10,890 9,694    
Fair value 14,794 13,596    
HDC/HW Intermediate Holdings        
Schedule of Investments [Line Items]        
Cost 2,160 [5] 1,951 [6]    
Fair value 1,986 [5] 1,906 [6]    
HEADLANDS OP-CO LLC        
Schedule of Investments [Line Items]        
Cost 4,844 [5] 4,848 [6]    
Fair value 4,920 [5] 4,939 [6]    
IG Parent Corporation        
Schedule of Investments [Line Items]        
Cost 8,124 [7] 8,633 [8]    
Fair value 8,229 [7] 8,756 [8]    
Imaging Business Machines, L.L.C.        
Schedule of Investments [Line Items]        
Cost [5] 11,670      
Fair value [5] 11,889      
Industrial Services Acquisition, LLC        
Schedule of Investments [Line Items]        
Cost 14,521 [5] 13,713 [6]    
Fair value 14,057 [5] 13,213 [6]    
Infinity X1 Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 5,365      
Fair value 5,365      
Infolinks Media Buyco, LLC        
Schedule of Investments [Line Items]        
Cost 12,357 [5] 10,528 [6]    
Fair value 12,545 [5] 10,694 [6]    
Insight Borrower Corporation        
Schedule of Investments [Line Items]        
Cost [5] 8,294      
Fair value [5] 8,294      
Inspire Aesthetics Management, LLC        
Schedule of Investments [Line Items]        
Cost [5] 8,192      
Fair value [5] 8,307      
Interface Security Systems, L.L.C        
Schedule of Investments [Line Items]        
Cost 9,089 [5] 8,936 [6]    
Fair value 2,318 [5] 2,767 [6]    
Invincible Boat Company, LLC.        
Schedule of Investments [Line Items]        
Cost 17,126 [5] 17,668 [6]    
Fair value 16,675 [5] 17,770 [6]    
Iron-Main Investments, LLC        
Schedule of Investments [Line Items]        
Cost 12,177 9,377    
Fair value 12,198 9,377    
Isagenix International, LLC        
Schedule of Investments [Line Items]        
Cost [7] 2,305      
Fair value [7] 2,304      
ITA Holdings Group, LLC        
Schedule of Investments [Line Items]        
Cost 2,154      
Fair value 2,154      
Jackmont Hospitality, Inc.        
Schedule of Investments [Line Items]        
Cost 5,874 [5] 5,333 [6]    
Fair value 6,673 [5] 6,373 [6]    
Joerns Healthcare, LLC        
Schedule of Investments [Line Items]        
Cost 9,057 [7] 8,938 [8]    
Fair value 1,898 [7] 2,353 [8]    
Johnson Downie Opco, LLC        
Schedule of Investments [Line Items]        
Cost 1,373 1,440    
Fair value 1,890 1,731    
JorVet Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 4,004 3,995    
Fair value 4,004 3,995    
JTI Electrical & Mechanical, LLC        
Schedule of Investments [Line Items]        
Cost 3,251 [5] 3,139 [6]    
Fair value 3,350 [5] 3,288 [6]    
KMS, LLC        
Schedule of Investments [Line Items]        
Cost 10,489 [5] 10,488 [6]    
Fair value 9,704 [5] 10,022 [6]    
LL Management, Inc.        
Schedule of Investments [Line Items]        
Cost 22,778 [5] 22,944 [6]    
Fair value 22,899 [5] 22,884 [6]    
Mako Steel, LP        
Schedule of Investments [Line Items]        
Cost 17,430 [5] 20,240 [6]    
Fair value 17,641 [5] 20,385 [6]    
MB2 Dental Solutions, LLC        
Schedule of Investments [Line Items]        
Cost 17,840 [7] 16,006 [8]    
Fair value 18,044 [7] 16,235 [8]    
Metalforming Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,267 2,250    
Fair value 2,271 2,250    
Microbe Formulas, LLC        
Schedule of Investments [Line Items]        
Cost 2,771 [5] 3,078 [6]    
Fair value 2,815 [5] 3,027 [6]    
MonitorUS Holding, LLC        
Schedule of Investments [Line Items]        
Cost 9,022 [5],[10] 7,885 [6],[13],[14]    
Fair value 9,161 [5],[10] 8,282 [6],[13],[14]    
NinjaTrader, LLC        
Schedule of Investments [Line Items]        
Cost 10,909 [5] 11,500 [6]    
Fair value 10,976 [5] 11,611 [6]    
NWN Corporation        
Schedule of Investments [Line Items]        
Cost 23,936 [5] 25,060 [6]    
Fair value 24,301 [5] 24,167 [6]    
Paragon Healthcare, Inc.        
Schedule of Investments [Line Items]        
Cost 2,825 [5] 2,704 [6]    
Fair value 2,894 [5] 2,736 [6]    
Power System Solutions        
Schedule of Investments [Line Items]        
Cost [5] 8,214      
Fair value [5] 8,356      
PTL US Bidco, Inc        
Schedule of Investments [Line Items]        
Cost 2,004 [5],[10] 1,805 [13]    
Fair value 2,006 [5],[10] 1,816 [13]    
RA Outdoors LLC        
Schedule of Investments [Line Items]        
Cost 13,298 [5] 12,778 [6]    
Fair value 12,394 [5] 11,674 [6]    
Richardson Sales Solutions        
Schedule of Investments [Line Items]        
Cost [5] 11,304      
Fair value [5] 11,304      
RM Bidder, LLC        
Schedule of Investments [Line Items]        
Cost 315 [5] 315 [6]    
Fair value 10 [5] 13 [6]    
Roof Opco, LLC        
Schedule of Investments [Line Items]        
Cost 8,275 [5] 7,116 [6]    
Fair value 8,438 [5] 7,273 [6]    
Rug Doctor, LLC.        
Schedule of Investments [Line Items]        
Cost 15,756 [5] 15,402 [6]    
Fair value 15,490 [5] 13,890 [6]    
SIB Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 12,391 [5] 12,245 [6]    
Fair value 11,187 [5] 11,451 [6]    
Slick Innovations, LLC        
Schedule of Investments [Line Items]        
Cost 3,060 3,448    
Fair value 3,560 3,860    
South Coast Terminals Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 3,014 [5] 3,522 [6]    
Fair value 3,067 [5] 3,609 [6]    
SPAU Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 5,842 [5] 5,069 [6]    
Fair value 5,890 [5] 5,157 [6]    
The Affiliati Network, LLC        
Schedule of Investments [Line Items]        
Cost 3,594 3,967    
Fair value 3,578 3,967    
U.S. TelePacific Corp.        
Schedule of Investments [Line Items]        
Cost [7] 2,754      
Fair value [7] 2,691      
USA DeBusk LLC        
Schedule of Investments [Line Items]        
Cost [5] 24,546      
Fair value [5] 24,821      
Wall Street Prep, Inc.        
Schedule of Investments [Line Items]        
Cost 5,090 [5] 5,745 [6]    
Fair value 5,228 [5] 5,739 [6]    
Watterson Brands, LLC        
Schedule of Investments [Line Items]        
Cost 4,445 [5] 4,180 [6],[15]    
Fair value 4,498 [5] 4,245 [6],[15]    
West Star Aviation Acquisition, LLC        
Schedule of Investments [Line Items]        
Cost 3,437 [5] 3,120 [6]    
Fair value 3,648 [5] 3,192 [6]    
Winter Services LLC        
Schedule of Investments [Line Items]        
Cost 13,955 [5] 12,219 [6]    
Fair value 14,208 [5] 12,444 [6]    
World Micro Holdings, LLC        
Schedule of Investments [Line Items]        
Cost 2,347 2,460    
Fair value 2,347 2,460    
Xenon Arc, Inc.        
Schedule of Investments [Line Items]        
Cost 3,690 [5] 3,495 [6]    
Fair value 3,751 [5] 3,540 [6]    
Zips Car Wash, LLC        
Schedule of Investments [Line Items]        
Cost 2,935 [5] 2,951 [6]    
Fair value 2,764 [5] 2,985 [6]    
ATX Networks Corp.        
Schedule of Investments [Line Items]        
Cost [8]   8,603    
Fair value [8]   12,272    
Flame King Holdings, LLC        
Schedule of Investments [Line Items]        
Cost   9,660    
Fair value   11,600    
Market Force Information, LLC        
Schedule of Investments [Line Items]        
Cost   10,623    
Fair value   403    
Sonic Systems International, LLC        
Schedule of Investments [Line Items]        
Cost [6]   19,727    
Fair value [6]   19,915    
Independent Pet Partners Intermediate Holdings, LLC        
Schedule of Investments [Line Items]        
Cost [6]   14,564    
Fair value [6]   4,974    
Money market accounts and money market funds        
Schedule of Investments [Line Items]        
Cost [1],[16] 19,589      
Fair value [3],[16] 19,589      
Short-term investments        
Schedule of Investments [Line Items]        
Cost [2],[17]   8,347    
Fair value [4],[17]   8,347    
Control investments        
Schedule of Investments [Line Items]        
Cost 43,725 [1],[18] 31,120 [2],[19]    
Fair value $ 54,066 [3],[18] $ 50,303 [4],[19] $ 50,546 $ 46,583
Investment owned, percent of net assets 8.80% 8.30%    
Affiliate investments        
Schedule of Investments [Line Items]        
Cost $ 218,636 [1],[20] $ 241,565 [2],[21]    
Fair value $ 275,889 [3],[20] $ 277,000 [4],[21] 257,418 234,158
Investment owned, percent of net assets 45.00% 45.40%    
Non‑Control/Non‑Affiliate investments        
Schedule of Investments [Line Items]        
Cost $ 802,779 [1],[22] $ 787,201 [2],[23]    
Fair value $ 773,858 [3],[22] $ 740,840 [4],[23]    
Investment owned, percent of net assets 126.10% 121.50%    
Investment, Identifier [Axis]: AAC Holdings, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 593,927 [7] 593,927 [8]    
Cost $ 3,148 [7] $ 3,148 [8]    
Fair value $ 0 [7] $ 0 [8]    
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [8]   18.00%    
PIK Rate [8]   18.00%    
Principal [8]   $ 4,173    
Cost [8]   3,963    
Fair value [8]   $ 4,110    
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [7] 18.00%      
PIK Rate [7] 18.00%      
Principal [7] $ 144      
Cost [7] 143      
Fair value [7] $ 135      
Investment, Identifier [Axis]: AAC Holdings, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [7] 18.00%      
PIK Rate [7] 18.00%      
Principal [7] $ 4,788      
Cost [7] 4,641      
Fair value [7] $ 4,501      
Investment, Identifier [Axis]: AAC Holdings, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 197,717 [7],[24] 197,717 [8],[25]    
Cost $ 0 [7],[24] $ 0 [8],[25]    
Fair value $ 0 [7],[24] $ 0 [8],[25]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26] 13.50%      
Reference Rate and Spread 5.00% [5],[26] 6.00% [6],[15]    
Principal $ 198 [5],[26] $ 0 [6],[15]    
Cost 177 [5],[26] (5) [6],[15]    
Fair value $ 198 [5],[26] $ (5) [6],[15]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   10.20%    
Reference Rate and Spread 6.00% [5],[26],[27],[28] 6.00% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 86 [6],[15]    
Cost (16) [5],[26],[27],[28] 77 [6],[15]    
Fair value $ (16) [5],[26],[27],[28] $ 86 [6],[15]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.42% [5],[26],[27] 10.58% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 2,316 [5],[26],[27] $ 1,983 [6],[15]    
Cost 2,226 [5],[26],[27] 1,930 [6],[15]    
Fair value $ 2,316 [5],[26],[27] $ 1,983 [6],[15]    
Investment, Identifier [Axis]: AB Centers Acquisition Corporation, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.42%      
Reference Rate and Spread [5],[26],[27] 6.00%      
Principal [5],[26],[27] $ 776      
Cost [5],[26],[27] 746      
Fair value [5],[26],[27] $ 776      
Investment, Identifier [Axis]: ADS Tactical, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.18% [7],[26],[27] 10.14% [8],[15]    
Reference Rate and Spread 5.75% [7],[26],[27] 5.75% [8],[15]    
Principal $ 7,510 [7],[26],[27] $ 9,125 [8],[15]    
Cost 7,426 [7],[26],[27] 8,996 [8],[15]    
Fair value 7,388 [7],[26],[27] $ 8,213 [8],[15]    
Investment, Identifier [Axis]: AFG Capital Group, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [29]   46    
Cost [29]   $ 300    
Fair value $ 0 $ 2,350 [29] 2,190 1,930
Investment, Identifier [Axis]: AFG Capital Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Fair value     0 36
Investment, Identifier [Axis]: AMEREQUIP LLC., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 11 [5],[30] 11 [6]    
Cost $ 83 [5],[30] $ 80 [6]    
Fair value $ 90 [5],[30] $ 80 [6]    
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 7.40% [5],[26],[27],[28] 7.40% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost 0 [5],[26],[27],[28] 0 [6],[15]    
Fair value $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Investment, Identifier [Axis]: AMEREQUIP LLC., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.87% [5],[26],[27] 11.72% [6],[15]    
Reference Rate and Spread 7.40% [5],[26],[27] 7.40% [6],[15]    
Principal $ 1,738 [5],[26],[27] $ 2,026 [6],[15]    
Cost 1,738 [5],[26],[27] 2,026 [6],[15]    
Fair value $ 1,738 [5],[26],[27] $ 2,025 [6],[15]    
Investment, Identifier [Axis]: ATS Operating, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 100,000 [5] 100,000 [6]    
Cost $ 100 [5] $ 100 [6]    
Fair value $ 80 [5] $ 90 [6]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.01%      
Reference Rate and Spread 6.50% [5],[26],[27] 5.50% [6],[15]    
Principal $ 100 [5],[26],[27] $ 0 [6],[15]    
Cost 100 [5],[26],[27] 0 [6],[15]    
Fair value $ 100 [5],[26],[27] $ 0 [6],[15]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.01% [5],[26],[27] 9.32% [6],[15]    
Reference Rate and Spread 5.50% [5],[26],[27] 5.50% [6],[15]    
Principal $ 925 [5],[26],[27] $ 925 [6],[15]    
Cost 910 [5],[26],[27] 907 [6],[15]    
Fair value $ 925 [5],[26],[27] $ 914 [6],[15]    
Investment, Identifier [Axis]: ATS Operating, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.01% [5],[26],[27] 11.32% [6],[15]    
Reference Rate and Spread 7.50% [5],[26],[27] 7.50% [6],[15]    
Principal $ 925 [5],[26],[27] $ 925 [6],[15]    
Cost 910 [5],[26],[27] 907 [6],[15]    
Fair value 925 [5],[26],[27] $ 916 [6],[15]    
Investment, Identifier [Axis]: ATX Networks Corp., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) [8]   585    
Cost [8]   $ 0    
Fair value $ 0 $ 3,290 [8] $ 0 0
Investment, Identifier [Axis]: ATX Networks Corp., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   12.23% [8],[15] 11.14%  
Reference Rate and Spread 7.50% 7.50% [8],[15] 7.50%  
Principal [8],[15]   $ 6,811    
Cost [8],[15]   6,266    
Fair value $ 0 $ 6,368 [8],[15] $ 6,735 7,121
Investment, Identifier [Axis]: ATX Networks Corp., Unsecured Debt        
Schedule of Investments [Line Items]        
Total Rate   10.00% [8] 10.00%  
PIK Rate   10.00% [8] 10.00%  
Principal [8]   $ 3,417    
Cost [8]   2,337    
Fair value $ 0 $ 2,614 [8] $ 2,481 1,977
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 137 [5] 50 [6]    
Cost $ 134 [5] $ 50 [6]    
Fair value $ 124 [5] $ 56 [6]    
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.67%      
Reference Rate and Spread 7.25% [5],[26],[27] 7.25% [6],[15]    
Principal $ 205 [5],[26],[27] $ 0 [6],[15]    
Cost 187 [5],[26],[27] (8) [6],[15]    
Fair value $ 198 [5],[26],[27] $ (8) [6],[15]    
Investment, Identifier [Axis]: AVEX Aviation Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.80% [5],[26],[27] 12.17% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27] 7.25% [6],[15]    
Principal $ 3,434 [5],[26],[27] $ 4,038 [6],[15]    
Cost 3,332 [5],[26],[27] 3,876 [6],[15]    
Fair value $ 3,327 [5],[26],[27] $ 3,876 [6],[15]    
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   13.88%    
Reference Rate and Spread 7.50% [5],[26],[27],[28] 9.50% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 4,616 [6],[15]    
Cost (8) [5],[26],[27],[28] 4,511 [6],[15]    
Fair value $ (8) [5],[26],[27],[28] $ 4,616 [6],[15]    
Investment, Identifier [Axis]: Acumera, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.99% [5],[26],[27] 13.57% [6],[15]    
Reference Rate and Spread 7.50% [5],[26],[27] 9.00% [6],[15]    
Principal $ 12,073 [5],[26],[27] $ 1,379 [6],[15]    
Cost 11,969 [5],[26],[27] 1,348 [6],[15]    
Fair value $ 12,073 [5],[26],[27] $ 1,379 [6],[15]    
Investment, Identifier [Axis]: Acumera, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) [5],[31] 14,953      
Cost [5],[31] $ 0      
Fair value [5],[31] $ 90      
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.00% [5],[26],[27],[32] 10.00% [6],[15],[33]    
Reference Rate and Spread 7.00% [5],[26],[27],[32] 6.00% [6],[15],[33]    
PIK Rate [5],[26],[27],[32] 1.00%      
Principal $ 849 [5],[26],[27],[32] $ 565 [6],[15],[33]    
Cost 849 [5],[26],[27],[32] 565 [6],[15],[33]    
Fair value $ 839 [5],[26],[27],[32] $ 565 [6],[15],[33]    
Investment, Identifier [Axis]: Adams Publishing Group, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.00% [5],[26],[27],[32] 10.00% [6],[15],[33]    
Reference Rate and Spread 7.00% [5],[26],[27],[32] 7.50% [6],[15],[33]    
PIK Rate [5],[26],[27],[32] 1.00%      
Principal $ 2,678 [5],[26],[27],[32] $ 2,826 [6],[15],[33]    
Cost 2,672 [5],[26],[27],[32] 2,819 [6],[15],[33]    
Fair value $ 2,646 [5],[26],[27],[32] $ 2,826 [6],[15],[33]    
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [5],[26],[28] 6.00% [6],[15]    
Principal $ 0 [5],[26],[28] $ 0 [6],[15]    
Cost (11) [5],[26],[28] (13) [6],[15]    
Fair value $ (11) [5],[26],[28] $ (13) [6],[15]    
Investment, Identifier [Axis]: American Health Staffing Group, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.43% [5],[26] 11.12% [6],[15]    
Reference Rate and Spread 6.00% [5],[26] 6.00% [6],[15]    
Principal $ 8,208 [5],[26] $ 8,271 [6],[15]    
Cost 8,157 [5],[26] 8,206 [6],[15]    
Fair value $ 8,208 [5],[26] $ 8,271 [6],[15]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.15% [5],[26],[27] 10.46% [6],[15]    
Reference Rate and Spread 8.75% [5],[26],[27] 6.75% [6],[15]    
PIK Rate [5],[26],[27] 1.00%      
Principal $ 4,281 [5],[26],[27] $ 4,438 [6],[15]    
Cost 4,257 [5],[26],[27] 4,416 [6],[15]    
Fair value $ 3,548 [5],[26],[27] $ 4,148 [6],[15]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.15% [5],[26],[27] 12.46% [6],[15]    
Reference Rate and Spread 8.75% [5],[26],[27] 8.75% [6],[15]    
PIK Rate [5],[26],[27] 1.00%      
Principal $ 0 [5],[26],[27] $ 4,438 [6],[15]    
Cost 0 [5],[26],[27] 4,417 [6],[15]    
Fair value $ 0 [5],[26],[27] $ 4,161 [6],[15]    
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27],[34] 17.15%      
Reference Rate and Spread [5],[26],[27],[34] 10.75%      
PIK Rate [5],[26],[27],[34] 1.00%      
Principal [5],[26],[27],[34] $ 4,270      
Cost [5],[26],[27],[34] 4,244      
Fair value [5],[26],[27],[34] $ 2,332      
Investment, Identifier [Axis]: American Nuts, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27],[34] 17.15%      
Reference Rate and Spread [5],[26],[27],[34] 10.75%      
PIK Rate [5],[26],[27],[34] 1.00%      
Principal [5],[26],[27],[34] $ 0      
Cost [5],[26],[27],[34] 0      
Fair value [5],[26],[27],[34] $ 0      
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 7.50% [7],[34],[35] 7.50% [8],[36]    
Reference Rate and Spread 6.50% [7],[34],[35] 6.50% [8],[36]    
Principal $ 2,425 [7],[34],[35] $ 2,425 [8],[36]    
Cost 2,375 [7],[34],[35] 2,375 [8],[36]    
Fair value $ 109 [7],[34],[35] $ 136 [8],[36]    
Investment, Identifier [Axis]: American Teleconferencing Services, Ltd., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 7.50% [7],[26],[34],[35] 7.50% [8],[15],[36]    
Reference Rate and Spread 6.50% [7],[26],[34],[35] 6.50% [8],[15],[36]    
Principal $ 11,693 [7],[26],[34],[35] $ 11,693 [8],[15],[36]    
Cost 11,451 [7],[26],[34],[35] 11,451 [8],[15],[36]    
Fair value 526 [7],[26],[34],[35] 658 [8],[15],[36]    
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 0 0 0
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 $ (6,392) $ 0 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 800 800    
Total Rate 14.13% 14.13% 12.63%  
Cost $ 800 $ 800    
Fair value $ 0 $ 0 $ 0 0
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 607 607    
Cost $ 607 $ 607    
Fair value $ 1,140 $ 880 $ 960 1,220
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [27] 15.38%      
Reference Rate and Spread 10.00% [26],[27] 10.00% [15] 10.00%  
Principal $ 40 [26],[27] $ 0 [15]    
Cost 39 [26],[27] (2) [15]    
Fair value $ 39 [26],[27] $ (2) [15] $ (3) (4)
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.38% [26],[27] 14.13% [15] 12.63%  
Reference Rate and Spread 10.00% [26],[27] 10.00% [15] 10.00%  
Principal $ 1,049 [26],[27] $ 1,166 [15]    
Cost 1,033 [26],[27] 1,135 [15]    
Fair value $ 1,033 [26],[27] $ 1,135 [15] $ 1,147 1,182
Investment, Identifier [Axis]: Analytical Systems Keco Holdings, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 105 [24] 105 [25]    
Cost $ 79 [24] $ 79 [25]    
Fair value $ 0 [24] $ 0 [25] 0 0
Investment, Identifier [Axis]: ArborWorks, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 124 [5] 124 [6]    
Cost $ 124 [5] $ 124 [6]    
Fair value $ 0 [5] $ 0 [6]    
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.43% [5],[26],[27],[34] 13.41% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27],[34] 9.00% [6],[15]    
PIK Rate [5],[26],[27],[34] 3.00%      
Principal $ 3,710 [5],[26],[27],[34] $ 2,484 [6],[15]    
Cost 3,661 [5],[26],[27],[34] 2,427 [6],[15]    
Fair value $ 2,071 [5],[26],[27],[34] $ 2,095 [6],[15]    
Investment, Identifier [Axis]: ArborWorks, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.43% [5],[26],[27],[34] 13.56% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27],[34] 9.00% [6],[15]    
PIK Rate [5],[26],[27],[34] 3.00%      
Principal $ 15,807 [5],[26],[27],[34] $ 15,786 [6],[15]    
Cost 15,579 [5],[26],[27],[34] 15,540 [6],[15]    
Fair value $ 8,822 [5],[26],[27],[34] $ 13,313 [6],[15]    
Investment, Identifier [Axis]: Archer Systems, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 62,402 [5] 62,402 [6]    
Cost $ 62 [5] $ 62 [6]    
Fair value $ 90 [5] $ 62 [6]    
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [5],[26],[27],[28] 6.50% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (4) [5],[26],[27],[28] (4) [6],[15]    
Fair value $ (4) [5],[26],[27],[28] $ (4) [6],[15]    
Investment, Identifier [Axis]: Archer Systems, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.54% [5],[26],[27] 10.92% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.50% [6],[15]    
Principal $ 1,776 [5],[26],[27] $ 2,205 [6],[15]    
Cost 1,749 [5],[26],[27] 2,165 [6],[15]    
Fair value $ 1,776 [5],[26],[27] $ 2,170 [6],[15]    
Investment, Identifier [Axis]: BBB Tank Services, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 200,000 200,000    
Cost $ 200 $ 200    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: BBB Tank Services, LLC, Preferred Stock (non-voting)        
Schedule of Investments [Line Items]        
Total Rate 15.00% 15.00%    
PIK Rate 15.00%      
Cost $ 41 $ 41    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 16.44% [26],[35] 15.12% [15],[37]    
Reference Rate and Spread 11.00% [26],[35] 11.00% [15],[37]    
Principal $ 150 [26],[35] $ 200 [15],[37]    
Cost 150 [26],[35] 200 [15],[37]    
Fair value $ 150 [26],[35] $ 200 [15],[37]    
Investment, Identifier [Axis]: BBB Tank Services, LLC, Unsecured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.44% [26],[35] 15.12% [15],[37]    
Reference Rate and Spread 11.00% [26],[35] 11.00% [15],[37]    
Principal $ 1,000 [26],[35] $ 1,000 [15],[37]    
Cost 1,000 [26],[35] 1,000 [15],[37]    
Fair value $ 550 [26],[35] $ 522 [15],[37]    
Investment, Identifier [Axis]: Barfly Ventures, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 12 [5] 12 [6]    
Cost $ 528 [5] $ 528 [6]    
Fair value $ 1,013 [5] $ 1,107 [6] 1,107 643
Investment, Identifier [Axis]: Batjer TopCo, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 453 [30] 453 [29]    
Cost $ 455 [30] $ 455 [29]    
Fair value 680 [30] 455 [29] 455 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [28] 0    
Cost (1) [28] (1)    
Fair value $ 0 [28] $ (1) $ (1) 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 11.00% 11.00%  
Principal $ 70 $ 1,225    
Cost 70 1,205    
Fair value $ 70 1,205 $ 1,203 0
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Fair value $ 70 0    
Investment, Identifier [Axis]: Batjer TopCo, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Principal $ 1,175      
Cost 1,159      
Fair value $ 1,175 $ 1,205    
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 1,548,387 [5],[30],[38] 1,548,387 [6],[29],[39]    
Total Rate [6],[29],[39]   8.00%    
PIK Rate [6],[29],[39]   8.00%    
Cost $ 0 [5],[30],[38] $ 1,161 [6],[29],[39]    
Fair value $ 2,820 [5],[30],[38] $ 4,561 [6],[29],[39]    
Investment, Identifier [Axis]: Berry Aviation, Inc., Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 122,416 [5],[30],[38] 122,416 [6],[29],[39]    
PIK Rate [6],[29],[39]   16.00%    
Cost $ 0 [5],[30],[38] $ 0 [6],[29],[39]    
Fair value $ 220 [5],[30],[38] $ 270 [6],[29],[39]    
Investment, Identifier [Axis]: Berry Aviation, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [6]   12.00%    
PIK Rate [6]   1.50%    
Principal [6]   $ 190    
Cost [6]   189    
Fair value [6]   $ 190    
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 7.25% [5],[26],[27],[28] 1.00% [6],[15]    
PIK Rate [6],[15]   6.00%    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (19) [5],[26],[27],[28] (22) [6],[15]    
Fair value $ (19) [5],[26],[27],[28] $ (22) [6],[15]    
Investment, Identifier [Axis]: Bettercloud, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[26],[27] 11.40% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27] 1.00% [6],[15]    
PIK Rate 6.25% [5],[26],[27] 6.00% [6],[15]    
Principal $ 8,401 [5],[26],[27] $ 7,991 [6],[15]    
Cost 8,278 [5],[26],[27] 7,848 [6],[15]    
Fair value $ 8,053 [5],[26],[27] $ 7,991 [6],[15]    
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 $ 20 [5] $ 420 [6]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 700,446 [7] 700,446 [8],[29]    
Cost $ 0 [7] $ 0 [8],[29]    
Fair value $ 1,104 [7] $ 4,708 [8],[29]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [7],[26] 16.00%      
Reference Rate and Spread 7.50% [7],[26] 8.50% [8],[15]    
PIK Rate [7],[26] 15.00%      
Principal $ 2,650 [7],[26] $ 0 [8],[15]    
Cost 2,650 [7],[26] 0 [8],[15]    
Fair value $ 2,491 [7],[26] $ 0 [8],[15]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.94% [7],[26],[27] 12.94% [8],[15]    
Reference Rate and Spread 8.50% [7],[26],[27] 8.50% [8],[15]    
PIK Rate [7],[26],[27] 12.94%      
Principal $ 3,815 [7],[26],[27] $ 3,473 [8],[15]    
Cost 3,082 [7],[26],[27] 2,455 [8],[15]    
Fair value $ 3,586 [7],[26],[27] $ 3,366 [8],[15]    
Investment, Identifier [Axis]: Bluestem Brands, Inc., Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 175,110 [7],[24] 175,110 [8],[25]    
Cost $ 1,111 [7],[24] $ 1,111 [8],[25]    
Fair value $ 279 [7],[24] $ 1,173 [8],[25]    
Investment, Identifier [Axis]: Boccella Precast Products LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 540,000 540,000 [29]    
Cost $ 564 $ 564 [29]    
Fair value $ 533 $ 741 [29]    
Investment, Identifier [Axis]: Boccella Precast Products LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00%    
Principal $ 80 $ 80    
Cost 80 80    
Fair value $ 80 $ 80    
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5],[9],[10] 360      
Cost [5],[9],[10] $ 360      
Fair value [5],[9],[10] $ 360      
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[9],[10],[26],[27],[28] 7.00%      
Principal [5],[9],[10],[26],[27],[28] $ 0      
Cost [5],[9],[10],[26],[27],[28] (17)      
Fair value [5],[9],[10],[26],[27],[28] $ (17)      
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[9],[10],[26],[27] 11.40%      
Reference Rate and Spread [5],[9],[10],[26],[27] 6.00%      
Principal [5],[9],[10],[26],[27] $ 4,050      
Cost [5],[9],[10],[26],[27] 3,976      
Fair value [5],[9],[10],[26],[27] $ 4,009      
Investment, Identifier [Axis]: Bond Brand Loyalty ULC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[9],[10],[26],[27] 13.40%      
Reference Rate and Spread [5],[9],[10],[26],[27] 8.00%      
Principal [5],[9],[10],[26],[27] $ 4,050      
Cost [5],[9],[10],[26],[27] 3,976      
Fair value [5],[9],[10],[26],[27] $ 4,009      
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 737 [30] 737 [29]    
Cost $ 1,070 [30] $ 1,070 [29]    
Fair value $ 1,400 [30] $ 1,770 [29] $ 1,420 1,930
Investment, Identifier [Axis]: Brewer Crane Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.44% [26] 14.12% [15] 12.56%  
Reference Rate and Spread 10.00% [26] 10.00% [15] 10.00%  
Principal $ 1,406 [26] $ 1,491 [15]    
Cost 1,406 [26] 1,491 [15]    
Fair value $ 1,376 [26] $ 1,491 [15] $ 1,520 2,005
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund III, LP)        
Schedule of Investments [Line Items]        
Units (percentage) 0.50% [10],[11],[40] 0.50% [12],[13],[29],[41]    
Cost $ 2,270 [10],[11],[40] $ 2,449 [12],[13],[29],[41]    
Fair value $ 1,407 [10],[11],[40] $ 1,576 [12],[13],[29],[41]    
Investment, Identifier [Axis]: Brightwood Capital Fund Investments, LP Interests (Brightwood Capital Fund IV, LP)        
Schedule of Investments [Line Items]        
Units (percentage) 1.20% [10],[11],[30],[40] 1.20% [12],[13],[29],[41]    
Cost $ 8,737 [10],[11],[30],[40] $ 8,737 [12],[13],[29],[41]    
Fair value $ 9,322 [10],[11],[30],[40] $ 9,082 [12],[13],[29],[41]    
Investment, Identifier [Axis]: Buca C, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 4 4    
Total Rate 6.00% 6.00%    
PIK Rate 6.00% 6.00%    
Cost $ 3,040 $ 3,040    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Buca C, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% [35] 9.00%    
Principal $ 11,490 [35] $ 11,740    
Cost 11,490 [35] 11,740    
Fair value $ 8,292 [35] $ 8,345    
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 10.42%      
Reference Rate and Spread 5.00% [5],[26],[27] 5.00% [6],[15]    
Principal $ 310 [5],[26],[27] $ 0 [6],[15]    
Cost 295 [5],[26],[27] (19) [6],[15]    
Fair value $ 310 [5],[26],[27] $ 0 [6],[15]    
Investment, Identifier [Axis]: Burning Glass Intermediate Holding Company, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.42% [5],[26],[27] 8.91% [6],[15]    
Reference Rate and Spread 5.00% [5],[26],[27] 5.00% [6],[15]    
Principal $ 13,154 [5],[26],[27] $ 13,255 [6],[15]    
Cost 12,995 [5],[26],[27] 13,070 [6],[15]    
Fair value $ 13,154 [5],[26],[27] $ 13,255 [6],[15]    
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 1        
Schedule of Investments [Line Items]        
Units (in shares) 379,338 379,338 [29]    
Cost $ 379 $ 379 [29]    
Fair value $ 379 $ 379 [29]    
Investment, Identifier [Axis]: CAI Software LLC, Preferred Equity 2        
Schedule of Investments [Line Items]        
Units (in shares) 126,446 126,446    
Cost $ 0 $ 0    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [6],[15],[42]   11.99%    
Reference Rate and Spread [6],[15],[42]   8.50%    
PIK Rate [6],[15],[42]   0.01%    
Principal [6],[15],[42]   $ 20,112    
Cost [6],[15],[42]   20,066    
Fair value [6],[15],[42]   $ 20,112    
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.07%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 5,003      
Cost [5],[26],[27] 4,998      
Fair value [5],[26],[27] $ 5,003      
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.07%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 1,557      
Cost [5],[26],[27] 1,555      
Fair value [5],[26],[27] $ 1,557      
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.07%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 0      
Cost [5],[26],[27] 0      
Fair value [5],[26],[27] $ 0      
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.07%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 0      
Cost [5],[26],[27] 0      
Fair value [5],[26],[27] $ 0      
Investment, Identifier [Axis]: Cadence Aerospace LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.07%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 54      
Cost [5],[26],[27] 54      
Fair value [5],[26],[27] $ 54      
Investment, Identifier [Axis]: Camin Cargo Control, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.93% [7],[26],[27] 10.88% [8],[15]    
Reference Rate and Spread 6.50% [7],[26],[27] 6.50% [8],[15]    
Principal $ 7,569 [7],[26],[27] $ 7,609 [8],[15]    
Cost 7,525 [7],[26],[27] 7,553 [8],[15]    
Fair value $ 7,304 [7],[26],[27] $ 7,342 [8],[15]    
Investment, Identifier [Axis]: Career Team Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 50,000 50,000    
Cost $ 500 $ 500    
Fair value $ 500 $ 500    
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [26],[27],[28] 6.00% [15]    
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost (4) [26],[27],[28] (3) [15]    
Fair value $ (4) [26],[27],[28] $ (3) [15]    
Investment, Identifier [Axis]: Career Team Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.50%    
Principal $ 2,240 $ 2,250    
Cost 2,197 2,196    
Fair value $ 2,197 $ 2,196    
Investment, Identifier [Axis]: CaseWorthy, Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 80,000 [5] 80,000 [6]    
Cost $ 80 [5] $ 80 [6]    
Fair value $ 80 [5] $ 80 [6]    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [5],[26],[27],[28] 6.00% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (3) [5],[26],[27],[28] (4) [6],[15]    
Fair value $ (3) [5],[26],[27],[28] $ (4) [6],[15]    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.65% [5],[26],[27] 10.73% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 2,594 [5],[26],[27] $ 2,600 [6],[15]    
Cost 2,572 [5],[26],[27] 2,574 [6],[15]    
Fair value $ 2,594 [5],[26],[27] $ 2,574 [6],[15]    
Investment, Identifier [Axis]: CaseWorthy, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.65% [5],[26],[27] 10.48% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 5.75% [6],[15]    
Principal $ 1,995 [5],[26],[27] $ 1,995 [6],[15]    
Cost 1,980 [5],[26],[27] 1,977 [6],[15]    
Fair value $ 1,995 [5],[26],[27] $ 1,995 [6],[15]    
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 3,327 3,327    
Cost $ 1,531 $ 1,531    
Fair value $ 2,600 $ 2,170 $ 2,040 1,460
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 9.00% [26],[27],[28] 9.00% [15] 9.00%  
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost 0 [26],[27],[28] 0 [15]    
Fair value $ 0 [26],[27],[28] $ 0 [15] $ 0 0
Investment, Identifier [Axis]: Centre Technologies Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.48% [26],[27] 13.13% [15] 11.63%  
Reference Rate and Spread 9.00% [26],[27] 9.00% [15] 9.00%  
Principal $ 4,394 [26],[27] $ 3,758 [15]    
Cost 4,361 [26],[27] 3,731 [15]    
Fair value $ 4,394 [26],[27] $ 3,731 [15] $ 3,729 2,216
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 1,087 [30] 1,087 [29]    
Cost $ 2,860 [30] $ 2,860 [29]    
Fair value $ 6,480 [30] $ 5,728 [29] 5,580 6,030
Investment, Identifier [Axis]: Chamberlin Holding LLC, Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 261,786 [30],[38] 261,786 [29],[39]    
Cost $ 443 [30],[38] $ 443 [29],[39]    
Fair value $ 743 [30],[38] $ 678 [29],[39] $ 471 385
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [26],[27],[28] 6.00% [15] 6.00%  
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost (35) [26],[27],[28] 0 [15]    
Fair value $ 0 [26],[27],[28] $ 0 [15] $ 0 0
Investment, Identifier [Axis]: Chamberlin Holding LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.49% [26],[27] 12.13% [15] 10.63%  
Reference Rate and Spread 8.00% [26],[27] 8.00% [15] 8.00%  
Principal $ 4,102 [26],[27] $ 4,236 [15]    
Cost 4,099 [26],[27] 4,228 [15]    
Fair value $ 4,102 [26],[27] $ 4,236 [15] $ 4,366 4,454
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.58% [5],[26],[27],[43] 10.72% [6],[15],[44]    
Reference Rate and Spread 7.00% [5],[26],[27],[43] 6.25% [6],[15],[44]    
Principal $ 286 [5],[26],[27],[43] $ 172 [6],[15],[44]    
Cost 269 [5],[26],[27],[43] 162 [6],[15],[44]    
Fair value $ 276 [5],[26],[27],[43] $ 169 [6],[15],[44]    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.53% [5],[26],[27] 10.71% [6],[15],[45]    
Reference Rate and Spread 7.00% [5],[26],[27] 6.25% [6],[15],[45]    
Principal $ 3,369 [5],[26],[27] $ 3,591 [6],[15],[45]    
Cost 3,322 [5],[26],[27] 3,530 [6],[15],[45]    
Fair value $ 3,260 [5],[26],[27] $ 3,539 [6],[15],[45]    
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.53%      
Reference Rate and Spread [5],[26],[27] 7.00%      
Principal [5],[26],[27] $ 187      
Cost [5],[26],[27] 184      
Fair value [5],[26],[27] $ 181      
Investment, Identifier [Axis]: Channel Partners Intermediateco, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.53%      
Reference Rate and Spread [5],[26],[27] 7.00%      
Principal [5],[26],[27] $ 451      
Cost [5],[26],[27] 441      
Fair value [5],[26],[27] $ 436      
Investment, Identifier [Axis]: Charps, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 457 [30] 457    
Cost $ 491 [30] $ 491    
Fair value $ 3,500 [30] $ 3,330 3,300 3,500
Investment, Identifier [Axis]: Charps, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 179 [30] 179 [29]    
Cost $ 1,820 [30] $ 1,820 [29]    
Fair value $ 1,400 [30] $ 2,060 [29] 2,370 2,560
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 200 [38] 200 [39]    
Cost $ 127 [38] $ 53 [39]    
Fair value $ 282 [38] $ 152 [39] $ 152 133
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.50% 13.23% [15] 12.13%  
Reference Rate and Spread   9.00% [15] 9.50%  
Principal $ 2,200 $ 2,620 [15]    
Cost 2,200 2,620 [15]    
Fair value 2,163 2,620 [15] $ 2,620 2,620
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 1.1        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 10.00% 10.00%  
Principal $ 256 $ 262    
Cost 253 260    
Fair value $ 253 260 $ 262 268
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 11.50%      
Fair value $ 2,163 2,620    
Investment, Identifier [Axis]: Clad-Rex Steel, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Fair value $ 253 $ 260    
Investment, Identifier [Axis]: Clarius BIGS, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.00% [5],[34],[35] 15.00% [6],[36],[37]    
PIK Rate 15.00% [5],[34],[35] 15.00% [6],[36],[37]    
Principal $ 2,720 [5],[34],[35] $ 2,747 [6],[36],[37]    
Cost 2,376 [5],[34],[35] 2,403 [6],[36],[37]    
Fair value $ 19 [5],[34],[35] $ 19 [6],[36],[37]    
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 39 [30] 39 [29]    
Cost $ 1,440 [30] $ 1,440 [29]    
Fair value $ 4,000 [30] $ 6,160 [29]    
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.50% [26],[27] 9.75% [15]    
Reference Rate and Spread 6.00% [26],[27] 6.00% [15]    
Principal $ 1,140 [26],[27] $ 1,140 [15]    
Cost 1,131 [26],[27] 1,127 [15]    
Fair value $ 1,140 [26],[27] $ 1,140 [15]    
Investment, Identifier [Axis]: Classic H&G Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 8.00% 8.00%    
Principal $ 4,819 $ 4,819    
Cost 4,773 4,754    
Fair value $ 4,819 $ 4,819    
Investment, Identifier [Axis]: Cody Pools, Inc., Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 147 [30],[38] 147 [29],[39]    
Cost $ 2,079 [30],[38] $ 2,079 [29],[39]    
Fair value 17,290 [30],[38] $ 14,550 [29],[39] $ 14,300 11,910
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [15]   15.38%    
Reference Rate and Spread   10.50% [15] 10.50%  
Principal 0 [28] $ 273 [15]    
Cost (2) [28] 261 [15]    
Fair value 0 [28] 273 [15] $ 0 (6)
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 1.1        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 15.38% [15] 13.63%  
Reference Rate and Spread   10.50% [15] 10.50%  
Principal $ 7,377 $ 6,882 [15]    
Cost 7,352 6,786 [15]    
Fair value $ 7,377 6,882 [15] $ 6,958 7,187
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 12.50%      
Fair value $ 7,377 0    
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Reference Rate and Spread 10.50%      
Fair value $ 0 273    
Investment, Identifier [Axis]: Cody Pools, Inc., Secured Debt 4        
Schedule of Investments [Line Items]        
Reference Rate and Spread 10.50%      
Fair value $ 0 $ 6,882    
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [29]   4,320    
Cost [29]   $ 1,920    
Fair value   2,290 [29] 2,300 2,280
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 240      
Cost $ 240      
Fair value $ 600 0    
Investment, Identifier [Axis]: Colonial Electric Company LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 4,320      
Cost $ 1,920      
Fair value 1,920 2,290    
Investment, Identifier [Axis]: Colonial Electric Company LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [28] 0    
Cost 0 [28] 0    
Fair value $ 0 [28] $ 0 $ 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 $ 5,591 $ 5,828    
Cost 5,519 5,729    
Fair value $ 5,442 $ 5,729 $ 5,799 6,007
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.61% [5],[26],[27],[46] 12.56% [6],[15],[47]    
Reference Rate and Spread 8.00% [5],[26],[27],[46] 8.00% [6],[15],[47]    
Principal $ 4,167 [5],[26],[27],[46] $ 4,167 [6],[15],[47]    
Cost 4,119 [5],[26],[27],[46] 4,106 [6],[15],[47]    
Fair value $ 4,003 [5],[26],[27],[46] $ 3,851 [6],[15],[47]    
Investment, Identifier [Axis]: Computer Data Source, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.52% [5],[26],[27] 12.56% [6],[15]    
Reference Rate and Spread 8.00% [5],[26],[27] 8.00% [6],[15]    
Principal $ 15,432 [5],[26],[27] $ 15,604 [6],[15]    
Cost 15,253 [5],[26],[27] 15,374 [6],[15]    
Fair value $ 14,827 [5],[26],[27] $ 14,421 [6],[15]    
Investment, Identifier [Axis]: Construction Supply Investments, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 861,618 [5] 861,618 [6],[29]    
Cost $ 3,335 [5] $ 3,335 [6],[29]    
Fair value $ 23,135 [5] $ 21,165 [6],[29]    
Investment, Identifier [Axis]: Copper Trail Fund Investments, LP Interests (CTMH, LP)        
Schedule of Investments [Line Items]        
Units (percentage) 38.80% [10],[11],[30],[40] 39.00% [12],[13],[41]    
Cost $ 713 [10],[11],[30],[40] $ 713 [12],[13],[41]    
Fair value $ 588 [10],[11],[30],[40] $ 588 [12],[13],[41] 710 710
Investment, Identifier [Axis]: DMA Industries, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,486 1,486    
Cost $ 1,486 $ 1,486    
Fair value $ 1,820 $ 1,820    
Investment, Identifier [Axis]: DMA Industries, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00%    
Principal $ 5,000 $ 5,300    
Cost 4,933 5,217    
Fair value $ 5,000 $ 5,300    
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 $ 260 [5] $ 380 [6]    
Investment, Identifier [Axis]: DTE Enterprises, LLC, Class AA Preferred Member Units (non-voting)        
Schedule of Investments [Line Items]        
Units (in shares) [5],[30] 723,684      
Total Rate 10.00% [5],[30] 10.00% [6],[29]    
PIK Rate 10.00% [5],[30] 10.00% [6],[29]    
Cost $ 1,252 [5],[30] $ 1,161 [6],[29]    
Fair value $ 1,251 [5],[30] $ 1,161 [6],[29]    
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [6],[15]   7.50%    
Principal [6],[15]   $ 0    
Cost [6],[15]   (1)    
Fair value [6],[15]   $ (1)    
Investment, Identifier [Axis]: DTE Enterprises, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   12.24%    
Reference Rate and Spread [6],[15]   7.50%    
Principal [6],[15]   $ 6,119    
Cost [6],[15]   6,110    
Fair value [6],[15]   $ 5,978    
Investment, Identifier [Axis]: Dalton US Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 14 [5] 14 [6]    
Cost $ 14 [5] $ 14 [6]    
Fair value $ 14 [5] $ 14 [6]    
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.92% [5],[26],[27],[48] 11.90% [6],[15]    
Reference Rate and Spread 8.50% [5],[26],[27],[48] 8.00% [6],[15]    
Principal $ 58 [5],[26],[27],[48] $ 79 [6],[15]    
Cost 44 [5],[26],[27],[48] 63 [6],[15]    
Fair value $ 58 [5],[26],[27],[48] $ 78 [6],[15]    
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 14.18%      
Reference Rate and Spread 8.50% [5],[26],[27] 8.00% [6],[15]    
Principal $ 290 [5],[26],[27] $ 0 [6],[15]    
Cost 285 [5],[26],[27] (5) [6],[15]    
Fair value $ 290 [5],[26],[27] $ (5) [6],[15]    
Investment, Identifier [Axis]: Dalton US Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.92% [5],[26],[27] 12.56% [6],[15]    
Reference Rate and Spread 8.50% [5],[26],[27] 8.00% [6],[15]    
Principal $ 1,030 [5],[26],[27] $ 1,035 [6],[15]    
Cost 1,014 [5],[26],[27] 1,016 [6],[15]    
Fair value $ 1,030 [5],[26],[27] $ 1,020 [6],[15]    
Investment, Identifier [Axis]: Datacom, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,000 [30] 1,000 [29]    
Cost $ 290 [30] $ 290 [29]    
Fair value $ 30 [30] $ 300 [29] $ 300 290
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 7.50% 7.50% 7.50%  
Principal $ 60 $ 25    
Cost 59 25    
Fair value $ 59 $ 25 $ 25 0
Investment, Identifier [Axis]: Datacom, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 7.50% 7.50%  
Principal $ 936 $ 958    
Cost 889 895    
Fair value $ 846 $ 865 $ 861 852
Investment, Identifier [Axis]: Digital Products Holdings LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 964 [30] 964 [29]    
Cost $ 2,375 [30] $ 2,375 [29]    
Fair value $ 2,459 [30] $ 2,459 [29] $ 2,459 2,459
Investment, Identifier [Axis]: Digital Products Holdings LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.38% [26],[27] 14.13% [15] 12.63%  
Reference Rate and Spread 10.00% [26],[27] 10.00% [15] 10.00%  
Principal $ 3,718 [26],[27] $ 3,883 [15]    
Cost 3,686 [26],[27] 3,878 [15]    
Fair value $ 3,669 [26],[27] $ 3,878 [15] $ 3,955 4,186
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 2,100 [30] 2,100 [29]    
Cost $ 2,100 [30] $ 2,100 [29]    
Fair value $ 5,340 [30] $ 5,558 [29] $ 5,560 4,590
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 14.00%   13.63%  
Reference Rate and Spread   11.00% [15] 11.00%  
Principal $ 225 $ 0 [15]    
Cost 221 (5) [15]    
Fair value $ 225 $ 0 [15] $ 600 (7)
Investment, Identifier [Axis]: Direct Marketing Solutions, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.00% 15.13% [15] 13.63%  
Reference Rate and Spread   11.00% [15] 11.00%  
Principal $ 5,085 $ 5,352 [15]    
Cost 5,054 5,306 [15]    
Fair value $ 5,085 $ 5,352 [15] $ 4,494 4,705
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 $ 128 [5] $ 128 [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 9.91% [5],[26],[27] 9.18% [6],[15]    
Reference Rate and Spread 4.50% [5],[26],[27] 4.50% [6],[15]    
PIK Rate 9.91% [5],[26],[27] 9.18% [6],[15]    
Principal $ 2,005 [5],[26],[27] $ 1,875 [6],[15]    
Cost 1,846 [5],[26],[27] 1,717 [6],[15]    
Fair value $ 1,846 [5],[26],[27] $ 1,717 [6],[15]    
Investment, Identifier [Axis]: Dynamic Communities, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.91% [5],[26],[27] 11.18% [6],[15]    
Reference Rate and Spread 6.50% [5],[26],[27] 6.50% [6],[15]    
PIK Rate 11.91% [5],[26],[27] 11.18% [6],[15]    
Principal $ 2,031 [5],[26],[27] $ 1,875 [6],[15]    
Cost 1,797 [5],[26],[27] 1,642 [6],[15]    
Fair value $ 1,561 [5],[26],[27] $ 1,642 [6],[15]    
Investment, Identifier [Axis]: EPIC Y-Grade Services, LP, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [8],[15]   10.70%    
Reference Rate and Spread [8],[15]   6.00%    
Principal [8],[15]   $ 6,840    
Cost [8],[15]   6,777    
Fair value [8],[15]   $ 6,156    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) 19 25    
Cost $ 374 $ 497    
Fair value $ 390 $ 497    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Common Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) 61 [38] 61 [39]    
Cost $ 102 [38] $ 102 [39]    
Fair value $ 109 [38] $ 102 [39]    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.00% [26],[27],[28] 6.00% [15]    
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost 0 [26],[27],[28] (1) [15]    
Fair value $ 0 [26],[27],[28] $ (1) [15]    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00%    
Principal $ 1,227 $ 1,227    
Cost 1,198 1,192    
Fair value $ 1,198 $ 1,192    
Investment, Identifier [Axis]: Elgin AcquireCo, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 9.00% 9.00%    
Principal $ 413 $ 415    
Cost 409 411    
Fair value $ 409 $ 411    
Investment, Identifier [Axis]: Emerald Technologies Acquisition Co, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.82% [7],[26],[27] 10.67% [8],[15]    
Reference Rate and Spread 6.25% [7],[26],[27] 6.25% [8],[15]    
Principal $ 2,406 [7],[26],[27] $ 2,453 [8],[15]    
Cost 2,371 [7],[26],[27] 2,411 [8],[15]    
Fair value $ 2,310 [7],[26],[27] $ 2,328 [8],[15]    
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   11.68%    
Reference Rate and Spread 5.50% [5],[26],[28] 6.50% [6],[15]    
Principal $ 0 [5],[26],[28] $ 41 [6],[15]    
Cost (12) [5],[26],[28] 27 [6],[15]    
Fair value $ 0 [5],[26],[28] $ 41 [6],[15]    
Investment, Identifier [Axis]: Engineering Research & Consulting, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.98% [5],[26],[27] 10.92% [6],[15]    
Reference Rate and Spread 6.50% [5],[26],[27] 6.50% [6],[15]    
Principal $ 5,121 [5],[26],[27] $ 5,159 [6],[15]    
Cost 5,045 [5],[26],[27] 5,070 [6],[15]    
Fair value $ 5,121 [5],[26],[27] $ 5,159 [6],[15]    
Investment, Identifier [Axis]: Escalent, Inc., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 170,998      
Cost [5] $ 174      
Fair value [5] $ 174      
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[26],[27],[28] 8.00%      
Principal [5],[26],[27],[28] $ 0      
Cost [5],[26],[27],[28] (10)      
Fair value [5],[26],[27],[28] $ (10)      
Investment, Identifier [Axis]: Escalent, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.49%      
Reference Rate and Spread [5],[26],[27] 8.00%      
Principal [5],[26],[27] $ 6,959      
Cost [5],[26],[27] 6,767      
Fair value [5],[26],[27] $ 6,890      
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.65% [5],[26],[27],[38] 10.67% [6],[15],[39]    
Reference Rate and Spread 7.00% [5],[26],[27],[38] 7.00% [6],[15],[39]    
Principal $ 308 [5],[26],[27],[38] $ 308 [6],[15],[39]    
Cost 306 [5],[26],[27],[38] 305 [6],[15],[39]    
Fair value $ 308 [5],[26],[27],[38] $ 292 [6],[15],[39]    
Investment, Identifier [Axis]: Event Holdco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.65% [5],[26],[27],[38] 10.67% [6],[15],[39]    
Reference Rate and Spread 7.00% [5],[26],[27],[38] 7.00% [6],[15],[39]    
Principal $ 3,692 [5],[26],[27],[38] $ 3,692 [6],[15],[39]    
Cost 3,668 [5],[26],[27],[38] 3,663 [6],[15],[39]    
Fair value $ 3,692 [5],[26],[27],[38] $ 3,507 [6],[15],[39]    
Investment, Identifier [Axis]: Fidelity Government Portfolio Class III Fund        
Schedule of Investments [Line Items]        
Total Rate 4.98%      
Cost [49] $ 1,816      
Fair value [49] $ 1,816      
Investment, Identifier [Axis]: First American Treasury Obligations Fund Class Z        
Schedule of Investments [Line Items]        
Total Rate 5.21%      
Cost [50] $ 17,773      
Fair value [50] $ 17,773      
Investment, Identifier [Axis]: Flame King Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 2,340 [30] 2,340 [29]    
Cost $ 2,600 [30] $ 2,600 [29]    
Fair value $ 6,970 [30] $ 4,400 [29] $ 3,460 2,600
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   10.75% [15] 9.25%  
Reference Rate and Spread 6.50% 6.50% [15] 6.50%  
Principal [15]   $ 1,900    
Cost [15]   1,885    
Fair value $ 0 $ 1,900 [15] $ 1,900 1,581
Investment, Identifier [Axis]: Flame King Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate   13.25% [15] 13.75%  
Reference Rate and Spread 9.00% 9.00% [15] 11.00%  
Principal [15]   $ 5,300    
Cost [15]   5,175    
Fair value $ 0 $ 5,300 [15] $ 5,300 5,145
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.90% [5],[27] 11.21% [6],[15]    
Reference Rate and Spread 7.50% [5],[27] 7.50% [6],[15]    
Principal $ 1,091 [5],[27] $ 818 [6],[15]    
Cost 1,091 [5],[27] 818 [6],[15]    
Fair value $ 1,091 [5],[27] $ 818 [6],[15]    
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.01% [5],[27] 12.19% [6],[15]    
Reference Rate and Spread 7.50% [5],[27] 7.50% [6],[15]    
Principal $ 6,873 [5],[27] $ 12,327 [6],[15]    
Cost 6,789 [5],[27] 12,055 [6],[15]    
Fair value $ 6,873 [5],[27] $ 12,327 [6],[15]    
Investment, Identifier [Axis]: Flip Electronics LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[27] 12.98%      
Reference Rate and Spread [5],[27] 7.50%      
Principal [5],[27] $ 5,455      
Cost [5],[27] 5,334      
Fair value [5],[27] $ 5,455      
Investment, Identifier [Axis]: Freeport Financial Funds, LP Interests (Freeport First Lien Loan Fund III LP)        
Schedule of Investments [Line Items]        
Units (percentage) 6.00% [10],[11],[30],[40] 6.00% [12],[13],[29],[41]    
Cost $ 5,328 [10],[11],[30],[40] $ 6,303 [12],[13],[29],[41]    
Fair value $ 4,873 [10],[11],[30],[40] 5,848 [12],[13],[29],[41] 6,175 7,231
Investment, Identifier [Axis]: GFG Group, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [30] 56      
Cost [30] $ 1,225      
Fair value $ 2,600 [30] 1,790 $ 1,790 1,750
Investment, Identifier [Axis]: GFG Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 8.00%   9.00%  
Principal $ 2,636      
Cost 2,595      
Fair value $ 2,636 $ 2,836 $ 2,936 3,136
Investment, Identifier [Axis]: GFG Group, LLC., Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [29]   56    
Cost [29]   $ 1,225    
Fair value [29]   $ 1,790    
Investment, Identifier [Axis]: GFG Group, LLC., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   9.00%    
Principal   $ 2,836    
Cost   2,779    
Fair value   $ 2,836    
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,896 2,896 [29]    
Cost $ 6,435 $ 6,435 [29]    
Fair value $ 21,890 $ 21,890 [29] $ 22,750 22,750
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate     10.56%  
Reference Rate and Spread     8.00%  
Fair value     $ 19,944 19,152
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.48% [27] 10.12%    
Reference Rate and Spread 6.00% [27] 6.00%    
Principal $ 838 [27] $ 330    
Cost 832 [27] 324    
Fair value $ 838 [27] $ 330    
Investment, Identifier [Axis]: GRT Rubber Technologies LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.48% [27] 12.12%    
Reference Rate and Spread 8.00% [27] 8.00%    
Principal $ 19,944 [27] $ 19,944    
Cost 19,790 [27] 19,753    
Fair value $ 19,944 [27] $ 19,943    
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,261 [30] 2,261 [29]    
Cost $ 4,423 [30] $ 4,423 [29]    
Fair value $ 20,400 [30] $ 12,720 [29] $ 11,620 12,430
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 7.50% [26],[27],[28],[32] 8.50% [15] 8.00%  
Principal $ 0 [26],[27],[28],[32] $ 0 [15]    
Cost 0 [26],[27],[28],[32] 0 [15]    
Fair value $ 0 [26],[27],[28],[32] $ 0 [15] $ 0 0
Investment, Identifier [Axis]: Gamber-Johnson Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.50% [26],[27],[32] 11.50% [15] 10.63%  
Reference Rate and Spread 7.50% [26],[27],[32] 8.50% [15] 8.00%  
Principal $ 14,120 [26],[27],[32] $ 16,020 [15]    
Cost 13,916 [26],[27],[32] 15,747 [15]    
Fair value $ 14,120 [26],[27],[32] $ 16,020 [15] $ 6,020 5,400
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 920 920    
Cost $ 920 $ 920    
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units 1        
Schedule of Investments [Line Items]        
Fair value     0 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Member Units 2        
Schedule of Investments [Line Items]        
Fair value     $ 980 0
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 15,930 15,930    
Cost $ 1,400 $ 1,400    
Fair value $ 700 $ 950    
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 9.50% [26],[27],[28] 9.50% [15] 9.50%  
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost 0 [26],[27],[28] 0 [15]    
Fair value $ 0 [26],[27],[28] $ 0 [15] $ 0 64
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.50%    
Principal $ 600 $ 600    
Cost 600 600    
Fair value $ 571 $ 571 $ 0 2,429
Investment, Identifier [Axis]: Gulf Publishing Holdings, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate     12.50%  
Fair value     $ 571 0
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 14.34% [5],[26],[27] 14.34% [6],[15]    
Reference Rate and Spread 9.50% [5],[26],[27] 9.50% [6],[15]    
PIK Rate 14.34% [5],[26],[27] 2.00% [6],[15]    
Principal $ 198 [5],[26],[27] $ 180 [6],[15]    
Cost 198 [5],[26],[27] 179 [6],[15]    
Fair value $ 182 [5],[26],[27] $ 175 [6],[15]    
Investment, Identifier [Axis]: HDC/HW Intermediate Holdings, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.34% [5],[26],[27] 14.34% [6],[15]    
Reference Rate and Spread 9.50% [5],[26],[27] 9.50% [6],[15]    
PIK Rate 14.34% [5],[26],[27] 2.00% [6],[15]    
Principal $ 1,964 [5],[26],[27] $ 1,780 [6],[15]    
Cost 1,962 [5],[26],[27] 1,772 [6],[15]    
Fair value $ 1,804 [5],[26],[27] $ 1,731 [6],[15]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.50% [5],[26],[27],[28] 6.50% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (15) [5],[26],[27],[28] (18) [6],[15]    
Fair value $ (15) [5],[26],[27],[28] $ (18) [6],[15]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.50% [5],[26],[27],[28] 6.50% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (15) [5],[26],[27],[28] (18) [6],[15]    
Fair value $ (15) [5],[26],[27],[28] $ (18) [6],[15]    
Investment, Identifier [Axis]: HEADLANDS OP-CO LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.82% [5],[26],[27] 10.62% [6],[15]    
Reference Rate and Spread 6.50% [5],[26],[27] 6.50% [6],[15]    
Principal $ 4,950 [5],[26],[27] $ 4,975 [6],[15]    
Cost 4,874 [5],[26],[27] 4,884 [6],[15]    
Fair value 4,950 [5],[26],[27] 4,975 [6],[15]    
Investment, Identifier [Axis]: HPEP 3, L.P., LP Interests (HPEP 3, L.P.)        
Schedule of Investments [Line Items]        
Fair value $ 4,106 $ 4,331 4,331 4,712
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (2717 MH, L.P.)        
Schedule of Investments [Line Items]        
Units (percentage) 49.30% [10],[11],[30],[40] 49.30% [12],[13],[41]    
Cost $ 3,345 [10],[11],[30],[40] $ 3,895 [12],[13],[41]    
Fair value $ 5,896 [10],[11],[30],[40] $ 7,552 [12],[13],[41] 7,142 3,971
Investment, Identifier [Axis]: Harris Preston Fund Investments, LP Interests (HPEP 3, L.P.)        
Schedule of Investments [Line Items]        
Units (percentage) 8.20% [10],[11],[30],[40] 8.20% [12],[13],[41]    
Cost $ 2,050 [10],[11],[30],[40] $ 2,558 [12],[13],[41]    
Fair value $ 4,106 [10],[11],[30],[40] $ 4,331 [12],[13],[41]    
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 56 [30] 56 [29]    
Cost $ 713 [30] $ 713 [29]    
Fair value $ 4,370 [30] $ 4,370 [29]    
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 56 [38] 56 [39]    
Cost $ 38 [38] $ 38 [39]    
Fair value $ 230 [38] $ 230 [39]    
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.65% [26],[27] 10.13% [15]    
Reference Rate and Spread 6.00% [26],[27] 6.00% [15]    
Principal $ 450 [26],[27] $ 796 [15]    
Cost 448 [26],[27] 796 [15]    
Fair value $ 450 [26],[27] $ 796 [15]    
Investment, Identifier [Axis]: Hawk Ridge Systems, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 9.00%    
Principal $ 9,744 $ 8,200    
Cost 9,691 8,147    
Fair value $ 9,744 $ 8,200    
Investment, Identifier [Axis]: Hybrid Promotions, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.76% [5],[26],[27] 12.07% [6]    
Reference Rate and Spread 8.25% [5],[26],[27] 8.25% [6]    
PIK Rate [5],[26],[27] 2.00%      
Principal $ 7,924 [5],[26],[27] $ 7,875 [6]    
Cost 7,786 [5],[26],[27] 7,762 [6]    
Fair value $ 6,549 [5],[26],[27] 6,826 [6]    
Investment, Identifier [Axis]: IG Investor, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 3,600      
Cost $ 3,600      
Fair value 3,600 0    
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal [28] 0      
Cost [28] (28)      
Fair value $ (28) [28] 0    
Investment, Identifier [Axis]: IG Investor, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00%      
Principal $ 9,426      
Cost 9,162      
Fair value $ 9,162 $ 0    
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [8],[15],[51]   10.17%    
Reference Rate and Spread 5.75% [7],[26],[27],[28] 5.75% [8],[15],[51]    
Principal $ 0 [7],[26],[27],[28] $ 465 [8],[15],[51]    
Cost (14) [7],[26],[27],[28] 447 [8],[15],[51]    
Fair value $ 0 [7],[26],[27],[28] $ 465 [8],[15],[51]    
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.17% [7],[26],[27] 10.17% [8],[15]    
Reference Rate and Spread 5.75% [7],[26],[27] 5.75% [8],[15]    
Principal $ 6,282 [7],[26],[27] $ 8,291 [8],[15]    
Cost 6,213 [7],[26],[27] 8,186 [8],[15]    
Fair value $ 6,282 [7],[26],[27] $ 8,291 [8],[15]    
Investment, Identifier [Axis]: IG Parent Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [7],[26],[27] 11.17%      
Reference Rate and Spread [7],[26],[27] 5.75%      
Principal [7],[26],[27] $ 1,947      
Cost [7],[26],[27] 1,925      
Fair value [7],[26],[27] $ 1,947      
Investment, Identifier [Axis]: INW Manufacturing, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.40% [7],[26],[27] 10.48% [8],[15]    
Reference Rate and Spread 5.75% [7],[26],[27] 5.75% [8],[15]    
Principal $ 6,750 [7],[26],[27] $ 6,984 [8],[15]    
Cost 6,622 [7],[26],[27] 6,825 [8],[15]    
Fair value $ 5,310 [7],[26],[27] $ 5,972 [8],[15]    
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [27],[28] 9.00%      
PIK Rate [27],[28] 2.00%      
Principal [27],[28] $ 0      
Cost [27],[28] (5)      
Fair value [27],[28] $ (5)      
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Reference Rate and Spread [27],[28] 9.00%      
PIK Rate [27],[28] 2.00%      
Principal [27],[28] $ 0      
Cost [27],[28] (2)      
Fair value [27],[28] $ (2)      
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [27] 15.40%      
Reference Rate and Spread [27] 8.00%      
PIK Rate [27] 2.00%      
Principal [27] $ 1,079      
Cost [27] 819      
Fair value [27] $ 819      
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [27] 17.40%      
Reference Rate and Spread [27] 10.00%      
PIK Rate [27] 2.00%      
Principal [27] $ 1,079      
Cost [27] 819      
Fair value [27] $ 819      
Investment, Identifier [Axis]: ITA Holdings Group, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) [24] 48,327      
Cost [24] $ 523      
Fair value [24] $ 523      
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 422      
Cost [5] $ 580      
Fair value [5] $ 580      
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.43%      
Reference Rate and Spread [5],[26],[27] 7.00%      
Principal [5],[26],[27] $ 988      
Cost [5],[26],[27] 988      
Fair value [5],[26],[27] $ 978      
Investment, Identifier [Axis]: Imaging Business Machines, L.L.C., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.45%      
Reference Rate and Spread [5],[26],[27] 7.00%      
Principal [5],[26],[27] $ 10,436      
Cost [5],[26],[27] 10,102      
Fair value [5],[26],[27] $ 10,331      
Investment, Identifier [Axis]: Implus Footcare, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.30% [5],[26],[27] 13.98% [6],[15]    
Reference Rate and Spread 7.75% [5],[26],[27] 7.75% [6],[15]    
PIK Rate 1.00% [5],[26],[27] 1.50% [6],[15]    
Principal $ 17,012 [5],[26],[27] $ 16,921 [6],[15]    
Cost 17,008 [5],[26],[27] 16,914 [6],[15]    
Fair value $ 15,659 [5],[26],[27] 15,961 [6],[15]    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 6,436,566      
Cost [5] $ 6,540      
Fair value $ 6,260 [5] $ 0    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) [6]   1,191,667    
Cost [6]   $ 1,192    
Fair value [6]   $ 0    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 1        
Schedule of Investments [Line Items]        
Total Rate [6]   6.00%    
PIK Rate [6]   6.00%    
Cost [6]   $ 2,470    
Fair value [6]   0    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Preferred Stock (non-voting) 2        
Schedule of Investments [Line Items]        
Cost [6]   0    
Fair value [6]   $ 0    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[36]   6.00%    
PIK Rate [6],[36]   6.00%    
Principal [6],[36]   $ 10,902    
Cost [6],[36]   10,443    
Fair value [6],[36]   $ 4,515    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [6]   14.42%    
Reference Rate and Spread [6]   10.00%    
PIK Rate [6]   14.42%    
Principal [6]   $ 481    
Cost [6]   459    
Fair value [6]   $ 459    
Investment, Identifier [Axis]: Independent Pet Partners Intermediate Holdings, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) [6]   185,757    
Cost [6]   $ 0    
Fair value [6]   $ 0    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 2,100 [5],[38] 2,100 [6],[39]    
Cost $ 2,100 [5],[38] $ 2,100 [6],[39]    
Fair value $ 1,440 [5],[38] $ 1,400 [6],[39]    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 336 [5],[30],[38] 336 [6],[29],[39]    
Total Rate 10.00% [5],[30],[38] 10.00% [6],[29],[39]    
PIK Rate 10.00% [5],[30],[38] 10.00% [6],[29],[39]    
Cost $ 316 [5],[30],[38] $ 301 [6],[29],[39]    
Fair value $ 366 [5],[30],[38] $ 338 [6],[29],[39]    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 187 [5],[30],[38] 187 [6],[29],[39]    
Total Rate 20.00% [5],[30],[38] 20.00% [6],[29],[39]    
PIK Rate 20.00% [5],[30],[38] 20.00% [6],[29],[39]    
Cost $ 233 [5],[30],[38] $ 215 [6],[29],[39]    
Fair value $ 243 [5],[30],[38] $ 217 [6],[29],[39]    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.35% [5],[26],[27],[52] 11.50% [6],[15]    
Reference Rate and Spread 6.75% [5],[26],[27],[52] 6.75% [6],[15]    
Principal $ 543 [5],[26],[27],[52] $ 387 [6],[15]    
Cost 523 [5],[26],[27],[52] 359 [6],[15]    
Fair value $ 543 [5],[26],[27],[52] $ 387 [6],[15]    
Investment, Identifier [Axis]: Industrial Services Acquisition, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.18% [5],[26],[27] 11.50% [6],[15]    
Reference Rate and Spread 6.75% [5],[26],[27] 6.75% [6],[15]    
Principal $ 11,465 [5],[26],[27] $ 10,871 [6],[15]    
Cost 11,349 [5],[26],[27] 10,738 [6],[15]    
Fair value $ 11,465 [5],[26],[27] $ 10,871 [6],[15]    
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 20,000      
Cost $ 1,000      
Fair value $ 1,000      
Investment, Identifier [Axis]: Infinity X1 Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00%      
Principal $ 4,444      
Cost 4,365      
Fair value $ 4,365      
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.17%      
Reference Rate and Spread 5.75% [5],[26],[27] 5.50% [6],[15]    
Principal $ 1,885 [5],[26],[27] $ 0 [6],[15]    
Cost 1,829 [5],[26],[27] (48) [6],[15]    
Fair value $ 1,885 [5],[26],[27] $ (48) [6],[15]    
Investment, Identifier [Axis]: Infolinks Media Buyco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.17% [5],[26],[27] 10.23% [6],[15]    
Reference Rate and Spread 5.75% [5],[26],[27] 5.50% [6],[15]    
Principal $ 10,660 [5],[26],[27] $ 10,742 [6],[15]    
Cost 10,528 [5],[26],[27] 10,576 [6],[15]    
Fair value $ 10,660 [5],[26],[27] 10,742 [6],[15]    
Investment, Identifier [Axis]: Insight Borrower Corporation, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 47,847      
Cost [5] $ 239      
Fair value [5] $ 239      
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[26],[27],[28] 6.25%      
Principal [5],[26],[27],[28] $ 0      
Cost [5],[26],[27],[28] (43)      
Fair value [5],[26],[27],[28] $ (43)      
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[26],[27],[28] 6.25%      
Principal [5],[26],[27],[28] $ 0      
Cost [5],[26],[27],[28] (34)      
Fair value [5],[26],[27],[28] $ (34)      
Investment, Identifier [Axis]: Insight Borrower Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.57%      
Reference Rate and Spread [5],[26],[27] 6.25%      
Principal [5],[26],[27] $ 8,373      
Cost [5],[26],[27] 8,132      
Fair value [5],[26],[27] $ 8,132      
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 101,719      
Cost [5] $ 322      
Fair value [5] $ 322      
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.49%      
Reference Rate and Spread [5],[26],[27] 8.00%      
Principal [5],[26],[27] $ 532      
Cost [5],[26],[27] 515      
Fair value [5],[26],[27] $ 527      
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.40%      
Reference Rate and Spread [5],[26],[27] 8.00%      
Principal [5],[26],[27] $ 6,272      
Cost [5],[26],[27] 6,122      
Fair value [5],[26],[27] $ 6,208      
Investment, Identifier [Axis]: Inspire Aesthetics Management, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.40%      
Reference Rate and Spread [5],[26],[27] 8.00%      
Principal [5],[26],[27] $ 1,263      
Cost [5],[26],[27] 1,233      
Fair value [5],[26],[27] $ 1,250      
Investment, Identifier [Axis]: Integral Energy Services, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) [5] 11,647      
Cost [5] $ 1,584      
Fair value $ 330 [5] 1,490    
Investment, Identifier [Axis]: Integral Energy Services, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.01%      
Reference Rate and Spread [5],[26],[27] 7.50%      
Principal [5],[26],[27] $ 18,425      
Cost [5],[26],[27] 18,200      
Fair value $ 17,607 [5],[26],[27] $ 18,425    
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 15.51% [5],[27],[35],[53] 14.22% [6],[54]    
Reference Rate and Spread 10.00% [5],[27],[35],[53] 10.00% [6],[54]    
PIK Rate [5],[27],[35],[53] 15.51%      
Principal $ 1,835 [5],[27],[35],[53] $ 1,682 [6],[54]    
Cost 1,835 [5],[27],[35],[53] 1,682 [6],[54]    
Fair value $ 1,781 [5],[27],[35],[53] $ 1,682 [6],[54]    
Investment, Identifier [Axis]: Interface Security Systems, L.L.C, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.43% [5],[26],[27],[34],[35] 12.07% [6],[15],[36]    
Reference Rate and Spread 7.00% [5],[26],[27],[34],[35] 7.00% [6],[15],[36]    
PIK Rate 12.43% [5],[26],[27],[34],[35] 1.00% [6],[15],[36]    
Principal $ 7,334 [5],[26],[27],[34],[35] $ 7,334 [6],[15],[36]    
Cost 7,254 [5],[26],[27],[34],[35] 7,254 [6],[15],[36]    
Fair value $ 537 [5],[26],[27],[34],[35] $ 1,085 [6],[15],[36]    
Investment, Identifier [Axis]: Intermedia Holdings, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.43% [7],[26],[27] 10.38% [8],[15]    
Reference Rate and Spread 6.00% [7],[26],[27] 6.00% [8],[15]    
Principal $ 5,557 [7],[26],[27] $ 5,621 [8],[15]    
Cost 5,552 [7],[26],[27] 5,613 [8],[15]    
Fair value $ 5,300 [7],[26],[27] $ 4,342 [8],[15]    
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.15% [5],[26] 10.14% [6],[15]    
Reference Rate and Spread 6.50% [5],[26] 6.50% [6],[15]    
Principal $ 311 [5],[26] $ 622 [6],[15]    
Cost 308 [5],[26] 618 [6],[15]    
Fair value $ 302 [5],[26] $ 622 [6],[15]    
Investment, Identifier [Axis]: Invincible Boat Company, LLC., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.15% [5],[26] 10.17% [6],[15]    
Reference Rate and Spread 6.50% [5],[26] 6.50% [6],[15]    
Principal $ 16,889 [5],[26] $ 17,148 [6],[15]    
Cost 16,818 [5],[26] 17,050 [6],[15]    
Fair value $ 16,373 [5],[26] $ 17,148 [6],[15]    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 50,753 44,944    
Cost $ 689 $ 449    
Fair value $ 710 $ 449    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.50% 12.50%    
Principal $ 1,128 $ 1,133    
Cost 1,107 1,108    
Fair value $ 1,107 $ 1,108    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.50% 12.50%    
Principal $ 785 $ 788    
Cost 770 771    
Fair value $ 770 $ 771    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 13.50% 12.50%    
Principal $ 2,236 $ 2,236    
Cost 2,236 2,236    
Fair value $ 2,236 $ 2,236    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate 13.50% 12.50%    
Principal $ 4,906 $ 4,928    
Cost 4,809 4,813    
Fair value $ 4,809 $ 4,813    
Investment, Identifier [Axis]: Iron-Main Investments, LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate 13.50%      
Principal $ 2,691      
Cost 2,566      
Fair value $ 2,566      
Investment, Identifier [Axis]: Isagenix International, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [7] 186,322      
Cost [7] $ 0      
Fair value [7] $ 0      
Investment, Identifier [Axis]: Isagenix International, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.59% [7],[26],[27] 9.93% [8],[15],[36]    
Reference Rate and Spread 5.50% [7],[26],[27] 7.75% [8],[15],[36]    
PIK Rate [7],[26],[27] 8.09%      
Principal $ 2,560 [7],[26],[27] $ 5,053 [8],[15],[36]    
Cost 2,305 [7],[26],[27] 5,034 [8],[15],[36]    
Fair value $ 2,304 [7],[26],[27] $ 1,537 [8],[15],[36]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 140,351 [5] 140,351 [6]    
Cost $ 140 [5] $ 140 [6]    
Fair value $ 190 [5] $ 240 [6]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.59%      
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 140 [5],[26],[27] $ 0 [6],[15]    
Cost 131 [5],[26],[27] (11) [6],[15]    
Fair value $ 140 [5],[26],[27] $ (11) [6],[15]    
Investment, Identifier [Axis]: JTI Electrical & Mechanical, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.66% [5],[26],[27] 10.73% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 3,020 [5],[26],[27] $ 3,059 [6],[15]    
Cost 2,980 [5],[26],[27] 3,010 [6],[15]    
Fair value $ 3,020 [5],[26],[27] $ 3,059 [6],[15]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 5,653,333 [5] 5,653,333 [6],[29]    
Total Rate [6],[29]   12.00%    
PIK Rate [6],[29]   12.00%    
Cost $ 216 [5] $ 242 [6],[29]    
Fair value $ 990 [5] $ 1,247 [6],[29]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.45% [5],[26],[27] 12.23% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27] 7.50% [6],[15]    
Principal $ 1,692 [5],[26],[27] $ 1,000 [6],[15]    
Cost 1,658 [5],[26],[27] 965 [6],[15]    
Fair value $ 1,683 [5],[26],[27] $ 1,000 [6],[15]    
Investment, Identifier [Axis]: Jackmont Hospitality, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.43% [5],[26],[27] 12.23% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27] 7.50% [6],[15]    
Principal $ 4,000 [5],[26],[27] $ 4,126 [6],[15]    
Cost 4,000 [5],[26],[27] 4,126 [6],[15]    
Fair value $ 4,000 [5],[26],[27] $ 4,126 [6],[15]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 392,514 [7] 392,514 [8]    
Cost $ 3,678 [7] $ 3,678 [8]    
Fair value $ 0 [7] $ 0 [8]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 23.64% [7],[27],[34] 18.00% [8]    
Reference Rate and Spread [7],[27],[34] 18.00%      
PIK Rate [7],[27],[34] 23.64%      
Principal $ 2,048 [7],[27],[34] $ 1,935 [8]    
Cost 2,048 [7],[27],[34] 1,935 [8]    
Fair value $ 1,665 [7],[27],[34] $ 1,935 [8]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 21.48% [7],[27],[34] 19.75% [8],[36]    
Reference Rate and Spread [7],[27],[34] 16.00%      
PIK Rate 21.48% [7],[27],[34] 19.75% [8],[36]    
Principal $ 1,708 [7],[27],[34] $ 3,351 [8],[36]    
Cost 1,698 [7],[27],[34] 3,325 [8],[36]    
Fair value $ 119 [7],[27],[34] $ 418 [8],[36]    
Investment, Identifier [Axis]: Joerns Healthcare, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [7],[27],[34] 21.48%      
Reference Rate and Spread [7],[27],[34] 16.00%      
PIK Rate [7],[27],[34] 21.48%      
Principal [7],[27],[34] $ 1,643      
Cost [7],[27],[34] 1,633      
Fair value [7],[27],[34] $ 114      
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 350 [30] 350 [29]    
Cost $ 350 [30] $ 350 [29]    
Fair value $ 850 [30] $ 620 [29]    
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 11.50% [26],[27],[28] 11.50% [15]    
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost (3) [26],[27],[28] (3) [15]    
Fair value $ 0 [26],[27],[28] $ 0 [15]    
Investment, Identifier [Axis]: Johnson Downie Opco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.98% [26],[27] 15.63% [15]    
Reference Rate and Spread 11.50% [26],[27] 11.50% [15]    
Principal $ 1,040 [26],[27] $ 1,111 [15]    
Cost 1,026 [26],[27] 1,093 [15]    
Fair value $ 1,040 [26],[27] $ 1,111 [15]    
Investment, Identifier [Axis]: JorVet Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 11,934 [30] 11,934 [29]    
Cost $ 1,193 [30] $ 1,193 [29]    
Fair value $ 1,193 [30] $ 1,193 [29]    
Investment, Identifier [Axis]: JorVet Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00%    
Principal $ 2,850 $ 2,850    
Cost 2,811 2,802    
Fair value $ 2,811 $ 2,802    
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 15.75% [5],[26] 12.00% [6],[15]    
Reference Rate and Spread 7.25% [5],[26] 7.25% [6],[15]    
Principal $ 1,309 [5],[26] $ 1,330 [6],[15]    
Cost 1,246 [5],[26] 1,250 [6],[15]    
Fair value $ 1,191 [5],[26] $ 1,244 [6],[15]    
Investment, Identifier [Axis]: KMS, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 15.75% [5],[26] 12.00% [6],[15]    
Reference Rate and Spread 7.25% [5],[26] 7.25% [6],[15]    
Principal $ 9,357 [5],[26] $ 9,381 [6],[15]    
Cost 9,243 [5],[26] 9,238 [6],[15]    
Fair value $ 8,513 [5],[26] $ 8,778 [6],[15]    
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 200 [30],[38] 200 [29],[39]    
Cost $ 248 [30],[38] $ 248 [29],[39]    
Fair value $ 715 [30],[38] $ 713 [29],[39]    
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units 1        
Schedule of Investments [Line Items]        
Fair value     2,310 3,080
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Member Units 2        
Schedule of Investments [Line Items]        
Fair value     $ 615 615
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 145 145    
Cost $ 3,060 $ 3,060    
Fair value $ 2,210 $ 1,800    
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% 11.50% 11.50%  
Principal $ 4,950 $ 5,104    
Cost 4,931 5,075    
Fair value $ 4,950 $ 5,093 $ 5,066 5,040
Investment, Identifier [Axis]: Kickhaefer Manufacturing Company, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 9.00% 9.00% 9.00%  
Principal $ 962 $ 970    
Cost 954 961    
Fair value $ 954 $ 961 $ 963 970
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[26],[27] 11.21% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27] 7.25% [6],[15]    
Principal $ 7,960 [5],[26],[27] $ 8,003 [6],[15]    
Cost 7,923 [5],[26],[27] 7,987 [6],[15]    
Fair value $ 7,960 [5],[26],[27] $ 7,945 [6],[15]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[26],[27] 11.67% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27] 7.25% [6],[15]    
Principal $ 5,246 [5],[26],[27] $ 6,164 [6],[15]    
Cost 5,221 [5],[26],[27] 6,148 [6],[15]    
Fair value $ 5,246 [5],[26],[27] $ 6,119 [6],[15]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[26],[27] 11.67% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27] 7.25% [6],[15]    
Principal $ 0 [5],[26],[27] $ 8,884 [6],[15]    
Cost 0 [5],[26],[27] 8,809 [6],[15]    
Fair value $ 0 [5],[26],[27] $ 8,820 [6],[15]    
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.67%      
Reference Rate and Spread [5],[26],[27] 7.25%      
Principal [5],[26],[27] $ 871      
Cost [5],[26],[27] 867      
Fair value [5],[26],[27] $ 871      
Investment, Identifier [Axis]: LL Management, Inc., Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.67%      
Reference Rate and Spread [5],[26],[27] 7.25%      
Principal [5],[26],[27] $ 8,822      
Cost [5],[26],[27] 8,767      
Fair value [5],[26],[27] $ 8,822      
Investment, Identifier [Axis]: LLFlex, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 15.40% [5],[26],[27] 12.74% [6],[15]    
Reference Rate and Spread 9.00% [5],[26],[27] 9.00% [6],[15]    
PIK Rate [5],[26],[27] 1.00%      
Principal $ 4,920 [5],[26],[27] $ 4,938 [6],[15]    
Cost 4,855 [5],[26],[27] 4,856 [6],[15]    
Fair value $ 4,411 [5],[26],[27] $ 4,833 [6],[15]    
Investment, Identifier [Axis]: Lightbox Holdings, L.P., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.65% [7],[27] 9.73% [8]    
Reference Rate and Spread 5.00% [7],[27] 5.00% [8]    
Principal $ 5,780 [7],[27] $ 5,826 [8]    
Cost 5,748 [7],[27] 5,783 [8]    
Fair value $ 5,607 [7],[27] $ 5,622 [8]    
Investment, Identifier [Axis]: Logix Acquisition Company, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.48% [5],[26] 10.13% [6],[15]    
Reference Rate and Spread 5.75% [5],[26] 5.75% [6],[15]    
Principal $ 11,552 [5],[26] $ 9,506 [6],[15]    
Cost 11,218 [5],[26] 9,476 [6],[15]    
Fair value $ 9,256 [5],[26] $ 7,843 [6],[15]    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.42% [7],[26],[27] 10.42% [8],[15]    
Reference Rate and Spread 6.00% [7],[26],[27] 6.00% [8],[15]    
Principal $ 2,811 [7],[26],[27] $ 8,359 [8],[15]    
Cost 2,775 [7],[26],[27] 8,223 [8],[15]    
Fair value $ 2,811 [7],[26],[27] $ 8,359 [8],[15]    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.42% [7],[26],[27] 10.42% [8],[15]    
Reference Rate and Spread 6.00% [7],[26],[27] 6.00% [8],[15]    
Principal $ 3,945 [7],[26],[27] $ 7,876 [8],[15]    
Cost 3,896 [7],[26],[27] 7,783 [8],[15]    
Fair value $ 3,945 [7],[26],[27] $ 7,876 [8],[15]    
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [7],[26],[27] 11.42%      
Reference Rate and Spread [7],[26],[27] 6.00%      
Principal [7],[26],[27] $ 3,472      
Cost [7],[26],[27] 3,429      
Fair value [7],[26],[27] $ 3,472      
Investment, Identifier [Axis]: MB2 Dental Solutions, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [7],[26],[27] 11.42%      
Reference Rate and Spread [7],[26],[27] 6.00%      
Principal [7],[26],[27] $ 7,816      
Cost [7],[26],[27] 7,740      
Fair value [7],[26],[27] $ 7,816      
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 16,500 16,500    
Cost $ 1,100 $ 1,100    
Fair value $ 80 $ 0 0 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 1,000 1,000    
Cost $ 1,500 $ 1,500    
Fair value $ 0 $ 0 $ 0 0
Investment, Identifier [Axis]: MH Corbin Holding LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00% [35] 13.00% 13.00%  
Principal $ 1,370 [35] $ 1,539    
Cost 1,370 [35] 1,539    
Fair value $ 1,276 [35] $ 1,137 $ 677 1,484
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.56% [5],[26] 11.79% [6],[15],[55]    
Reference Rate and Spread 7.25% [5],[26] 7.25% [6],[15],[55]    
Principal $ 811 [5],[26] $ 3,448 [6],[15],[55]    
Cost 771 [5],[26] 3,395 [6],[15],[55]    
Fair value $ 811 [5],[26] $ 3,426 [6],[15],[55]    
Investment, Identifier [Axis]: Mako Steel, LP, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.56% [5],[26],[27] 11.09% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27] 7.25% [6],[15]    
Principal $ 16,830 [5],[26],[27] $ 17,070 [6],[15]    
Cost 16,659 [5],[26],[27] 16,845 [6],[15]    
Fair value 16,830 [5],[26],[27] $ 16,959 [6],[15]    
Investment, Identifier [Axis]: Market Force Information, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares)   185,980    
Cost   $ 4,160    
Fair value 0 $ 0 $ 0 0
Investment, Identifier [Axis]: Market Force Information, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   12.00% [36] 12.00%  
PIK Rate   12.00% [36] 12.00%  
Principal [36]   $ 6,520    
Cost [36]   6,463    
Fair value $ 0 $ 403 [36] $ 718 2,234
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares)   112,865    
Cost   $ 113    
Fair value   $ 113    
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) [29]   434,331    
Total Rate [29]   8.00%    
PIK Rate [29]   8.00%    
Cost [29]   $ 441    
Fair value [29]   441    
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal   0    
Cost   (1)    
Fair value   $ (1)    
Investment, Identifier [Axis]: MetalForming AcquireCo, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate   12.75%    
Principal   $ 1,748    
Cost   1,697    
Fair value   $ 1,697    
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) [30] 112,865      
Cost [30] $ 113      
Fair value [30] $ 100      
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) [30] 434,331      
Total Rate [30] 8.00%      
PIK Rate [30] 8.00%      
Cost [30] $ 450      
Fair value [30] 467      
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal [28] 0      
Cost [28] (1)      
Fair value [28] $ (1)      
Investment, Identifier [Axis]: Metalforming Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.75%      
Principal $ 1,748      
Cost 1,705      
Fair value $ 1,705      
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.25% [5],[26],[27],[28] 6.25% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (6) [5],[26],[27],[28] (7) [6],[15]    
Fair value $ (6) [5],[26],[27],[28] $ (7) [6],[15]    
Investment, Identifier [Axis]: Microbe Formulas, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.42% [5],[26],[27] 9.86% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.25% [6],[15]    
Principal $ 2,821 [5],[26],[27] $ 3,142 [6],[15]    
Cost 2,777 [5],[26],[27] 3,085 [6],[15]    
Fair value $ 2,821 [5],[26],[27] $ 3,034 [6],[15]    
Investment, Identifier [Axis]: Mills Fleet Farm Group, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.02% [5],[26],[27] 10.66% [6],[15]    
Reference Rate and Spread 6.50% [5],[26],[27] 6.25% [6],[15]    
Principal $ 18,769 [5],[26],[27] $ 18,769 [6],[15]    
Cost 18,645 [5],[26],[27] 18,559 [6],[15]    
Fair value $ 17,991 [5],[26],[27] $ 18,338 [6],[15]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 12,798,820 [5],[10] 12,798,820 [6],[13],[14]    
Cost $ 256 [5],[10] $ 256 [6],[13],[14]    
Fair value $ 160 [5],[10] $ 256 [6],[13],[14]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[10] 14.00%      
Reference Rate and Spread [6],[13],[14],[15]   7.00%    
Principal $ 1,109 [5],[10] $ 0 [6],[13],[14],[15]    
Cost 1,093 [5],[10] (19) [6],[13],[14],[15]    
Fair value $ 1,076 [5],[10] $ (19) [6],[13],[14],[15]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.00% [5],[10] 11.73% [6],[13],[14],[15]    
Reference Rate and Spread [6],[13],[14],[15]   7.00%    
Principal $ 2,882 [5],[10] $ 2,882 [6],[13],[14],[15]    
Cost 2,838 [5],[10] 2,828 [6],[13],[14],[15]    
Fair value $ 3,019 [5],[10] $ 3,139 [6],[13],[14],[15]    
Investment, Identifier [Axis]: MonitorUS Holding, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.00% [5],[10] 11.73% [6],[13],[14],[15]    
Reference Rate and Spread [6],[13],[14],[15]   7.00%    
Principal $ 4,906 [5],[10] $ 4,906 [6],[13],[14],[15]    
Cost 4,835 [5],[10] 4,820 [6],[13],[14],[15]    
Fair value $ 4,906 [5],[10] $ 4,906 [6],[13],[14],[15]    
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 1,468 [30] 1,468 [29]    
Cost $ 680 [30] $ 680 [29]    
Fair value 6,788 [30] 5,708 [29] 5,175 2,210
Investment, Identifier [Axis]: Mystic Logistics Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [28] 0    
Cost 0 [28] 0    
Fair value $ 0 [28] $ 0 $ 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 $ 1,436 $ 1,436    
Cost 1,436 1,436    
Fair value $ 1,436 $ 1,436 $ 1,436 1,595
Investment, Identifier [Axis]: NTM Acquisition Corp., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.79% [7],[26],[27] 9.50% [8],[15]    
Reference Rate and Spread 7.25% [7],[26],[27] 6.25% [8],[15]    
PIK Rate 1.00% [7],[26],[27] 1.00% [8],[15]    
Principal $ 3,925 [7],[26],[27] $ 4,036 [8],[15]    
Cost 3,923 [7],[26],[27] 4,034 [8],[15]    
Fair value $ 3,768 [7],[26],[27] $ 3,915 [8],[15]    
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[15],[56]   10.85%    
Reference Rate and Spread 9.00% [5],[26],[27],[28] 8.00% [6],[15],[56]    
Principal $ 0 [5],[26],[27],[28] $ 1,570 [6],[15],[56]    
Cost (38) [5],[26],[27],[28] 1,519 [6],[15],[56]    
Fair value $ (39) [5],[26],[27],[28] $ 1,482 [6],[15],[56]    
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 14.52% [5],[26],[27] 12.56% [6],[15]    
Reference Rate and Spread 9.00% [5],[26],[27] 8.00% [6],[15]    
PIK Rate [5],[26],[27] 1.00%      
Principal $ 20,558 [5],[26],[27] $ 20,786 [6],[15]    
Cost 20,320 [5],[26],[27] 20,476 [6],[15]    
Fair value $ 20,558 [5],[26],[27] $ 19,620 [6],[15]    
Investment, Identifier [Axis]: NWN Corporation, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 20.00% [5] 20.00% [6]    
PIK Rate 20.00% [5] 20.00% [6]    
Principal $ 3,782 [5] $ 3,226 [6]    
Cost 3,654 [5] 3,065 [6]    
Fair value $ 3,782 [5] $ 3,065 [6]    
Investment, Identifier [Axis]: NexRev LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 25,786,046 [30] 25,786,046 [29]    
Cost $ 2,053 [30] $ 2,053 [29]    
Fair value 1,590 [30] 280 [29] $ 280 670
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate     11.00%  
Principal 0 [28] 0    
Cost 0 [28] 0    
Fair value $ 0 [28] $ 0 $ 40 199
Investment, Identifier [Axis]: NexRev LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.00% 11.00% 11.00%  
Principal $ 2,453 $ 2,866    
Cost 2,431 2,828    
Fair value $ 2,431 $ 2,119 $ 2,263 3,311
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.25% [5],[26],[27],[28] 6.25% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (1) [5],[26],[27],[28] (1) [6],[15]    
Fair value $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.25% [5],[26],[27],[28] 6.25% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (15) [5],[26],[27],[28] (23) [6],[15]    
Fair value $ (15) [5],[26],[27],[28] $ (23) [6],[15]    
Investment, Identifier [Axis]: NinjaTrader, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.40% [5],[26],[27] 9.99% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.25% [6],[15]    
Principal $ 10,991 [5],[26],[27] $ 11,634 [6],[15]    
Cost 10,925 [5],[26],[27] 11,524 [6],[15]    
Fair value $ 10,991 [5],[26],[27] $ 11,634 [6],[15]    
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Fair value     $ 2,550 3,380
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 102 102    
Cost $ 2,550 $ 2,550    
Fair value $ 2,310 $ 2,010    
Investment, Identifier [Axis]: NuStep, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 515 515    
Cost $ 515 $ 515    
Fair value $ 1,290 $ 1,290    
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.98% [26],[27] 10.63% [15] 9.13%  
Reference Rate and Spread 6.50% [26],[27] 6.50% [15] 6.50%  
Principal $ 900 [26],[27] $ 1,100 [15]    
Cost 898 [26],[27] 1,097 [15]    
Fair value $ 898 [26],[27] $ 1,100 [15] $ 1,097 430
Investment, Identifier [Axis]: NuStep, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 4,610 $ 4,610    
Cost 4,606 4,603    
Fair value $ 4,606 $ 4,603 $ 4,602 4,310
Investment, Identifier [Axis]: OVG Business Services, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   10.64%    
Reference Rate and Spread [6],[15]   6.25%    
Principal [6],[15]   $ 17,413    
Cost [6],[15]   17,265    
Fair value [6],[15]   $ 16,368    
Investment, Identifier [Axis]: Obra Capital, Inc, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [7],[27] 11.43%      
Reference Rate and Spread [7],[27] 6.00%      
Principal [7],[27] $ 7,217      
Cost [7],[27] 6,854      
Fair value [7],[27] $ 5,990      
Investment, Identifier [Axis]: Oneliance, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 282 264    
Cost $ 282 $ 264    
Fair value $ 282 $ 264 $ 264 264
Investment, Identifier [Axis]: Oneliance, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 16.48% [26],[27] 15.13% [15] 13.56%  
Reference Rate and Spread 11.00% [26],[27] 11.00% [15]    
Principal $ 1,380 [26],[27] $ 1,400 [15]    
Cost 1,364 [26],[27] 1,380 [15]    
Fair value $ 1,357 [26],[27] $ 1,380 [15] $ 1,378 1,374
Investment, Identifier [Axis]: Orttech Holdings, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) 2,500 [30],[38] 2,500 [29],[39]    
Cost $ 2,500 [30],[38] $ 2,500 [29],[39]    
Fair value $ 4,260 [30],[38] $ 2,940 [29],[39] 2,500 2,500
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 11.00% [26],[27],[28] 11.00% [15]    
Principal $ 0 [26],[27],[28] $ 0 [15]    
Cost (2) [26],[27],[28] (2) [15]    
Fair value $ 0 [26],[27],[28] $ (2) [15] $ (3) 41
Investment, Identifier [Axis]: Orttech Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 16.48% [26],[27] 15.13% [15] 13.63%  
Reference Rate and Spread 11.00% [26],[27] 11.00% [15]    
Principal $ 5,550 [26],[27] $ 5,900 [15]    
Cost 5,486 [26],[27] 5,814 [15]    
Fair value $ 5,550 [26],[27] $ 5,814 [15] $ 5,808 5,937
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[9],[10],[26] 14.22%      
Reference Rate and Spread 6.75% [5],[9],[10],[26] 7.25% [13],[15]    
Principal $ 260 [5],[9],[10],[26] $ 0 [13],[15]    
Cost 251 [5],[9],[10],[26] (12) [13],[15]    
Fair value $ 256 [5],[9],[10],[26] $ (12) [13],[15]    
Investment, Identifier [Axis]: PTL US Bidco, Inc, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.39% [5],[10],[26],[27] 11.80% [13],[15]    
Reference Rate and Spread 7.75% [5],[10],[26],[27] 7.25% [13],[15]    
Principal $ 1,781 [5],[10],[26],[27] $ 1,852 [13],[15]    
Cost 1,753 [5],[10],[26],[27] 1,817 [13],[15]    
Fair value $ 1,750 [5],[10],[26],[27] $ 1,828 [13],[15]    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   10.26%    
Reference Rate and Spread 5.75% [5],[26],[27],[28] 5.75% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 71 [6],[15]    
Cost (11) [5],[26],[27],[28] 57 [6],[15]    
Fair value $ 0 [5],[26],[27],[28] $ 70 [6],[15]    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.17% [5],[26],[27] 9.96% [6],[15],[57]    
Reference Rate and Spread 5.75% [5],[26],[27] 5.75% [6],[15],[57]    
Principal $ 425 [5],[26],[27] $ 356 [6],[15],[57]    
Cost 415 [5],[26],[27] 343 [6],[15],[57]    
Fair value $ 425 [5],[26],[27] $ 349 [6],[15],[57]    
Investment, Identifier [Axis]: Paragon Healthcare, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.17% [5],[26],[27] 9.81% [6],[15]    
Reference Rate and Spread 5.75% [5],[26],[27] 5.75% [6],[15]    
Principal $ 2,469 [5],[26],[27] $ 2,363 [6],[15]    
Cost 2,421 [5],[26],[27] 2,304 [6],[15]    
Fair value $ 2,469 [5],[26],[27] $ 2,317 [6],[15]    
Investment, Identifier [Axis]: Power System Solutions, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) [5] 1,234      
Cost [5] $ 532      
Fair value [5] $ 532      
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[26],[27],[28] 6.75%      
Principal [5],[26],[27],[28] $ 0      
Cost [5],[26],[27],[28] (37)      
Fair value [5],[26],[27],[28] $ (37)      
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 2        
Schedule of Investments [Line Items]        
Reference Rate and Spread [5],[26],[27],[28] 6.75%      
Principal [5],[26],[27],[28] $ 0      
Cost [5],[26],[27],[28] (37)      
Fair value [5],[26],[27],[28] $ (37)      
Investment, Identifier [Axis]: Power System Solutions, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.03%      
Reference Rate and Spread [5],[26],[27] 6.75%      
Principal [5],[26],[27] $ 7,979      
Cost [5],[26],[27] 7,756      
Fair value [5],[26],[27] $ 7,898      
Investment, Identifier [Axis]: PrimeFlight Aviation Services, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.87%      
Reference Rate and Spread [5],[26],[27] 6.85%      
Principal [5],[26],[27] $ 6,571      
Cost [5],[26],[27] 6,390      
Fair value [5],[26],[27] $ 6,505      
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.64%      
Reference Rate and Spread 7.00% [5],[26],[27] 6.75% [6],[15]    
Principal $ 488 [5],[26],[27] $ 0 [6],[15]    
Cost 479 [5],[26],[27] (11) [6],[15]    
Fair value $ 451 [5],[26],[27] $ (11) [6],[15]    
Investment, Identifier [Axis]: RA Outdoors LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.14% [5],[26],[27] 10.56% [6],[15]    
Reference Rate and Spread 6.75% [5],[26],[27] 6.75% [6],[15]    
Principal $ 12,917 [5],[26],[27] $ 12,917 [6],[15]    
Cost 12,819 [5],[26],[27] 12,789 [6],[15]    
Fair value $ 11,943 [5],[26],[27] $ 11,685 [6],[15]    
Investment, Identifier [Axis]: RM Bidder, LLC, Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 1,854 [5] 1,854 [6]    
Cost $ 31 [5] $ 31 [6]    
Fair value $ 10 [5] $ 13 [6]    
Investment, Identifier [Axis]: RM Bidder, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) 218,601 [5],[58] 218,601 [6],[59]    
Cost $ 284 [5],[58] $ 284 [6],[59]    
Fair value $ 0 [5],[58] $ 0 [6],[59]    
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 11.13% [7],[26],[27] 8.84% [8],[15]    
Reference Rate and Spread 5.50% [7],[26],[27] 5.50% [8],[15]    
Principal $ 9,716 [7],[26],[27] $ 9,820 [8],[15]    
Cost 9,716 [7],[26],[27] 9,820 [8],[15]    
Fair value $ 7,104 [7],[26],[27] $ 7,434 [8],[15]    
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27],[60] 11.82%      
Reference Rate and Spread [5],[26],[27],[60] 6.50%      
Principal [5],[26],[27],[60] $ 1,061      
Cost [5],[26],[27],[60] 1,006      
Fair value [5],[26],[27],[60] $ 1,006      
Investment, Identifier [Axis]: Richardson Sales Solutions, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.82%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 10,606      
Cost [5],[26],[27] 10,298      
Fair value [5],[26],[27] $ 10,298      
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,230 1,230    
Cost $ 1,230 $ 1,230    
Fair value $ 310 1,650 1,690 0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 11.00%      
Principal $ 0 [28] 0 [15]    
Cost (6) [28] (8) [15]    
Fair value $ (6) [28] $ (8) [15] $ (8) 0
Investment, Identifier [Axis]: Robbins Bros. Jewelry, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.50% 12.50% [15] 13.63%  
Reference Rate and Spread 11.00%      
Principal $ 3,840 $ 3,965 [15]    
Cost 3,791 3,902 [15]    
Fair value $ 3,748 $ 3,902 [15] $ 3,923 0
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   10.97%    
Reference Rate and Spread 6.50% [5],[26],[27],[28] 6.50% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 389 [6],[15]    
Cost (11) [5],[26],[27],[28] 375 [6],[15]    
Fair value $ 0 [5],[26],[27],[28] $ 389 [6],[15]    
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.01% [5],[26],[27] 10.32% [6],[15]    
Reference Rate and Spread 6.50% [5],[26],[27] 6.50% [6],[15]    
Principal $ 4,219 [5],[26],[27] $ 2,917 [6],[15]    
Cost 4,143 [5],[26],[27] 2,835 [6],[15]    
Fair value $ 4,219 [5],[26],[27] $ 2,917 [6],[15]    
Investment, Identifier [Axis]: Roof Opco, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 14.01% [5],[26],[27] 10.32% [6],[15]    
Reference Rate and Spread 8.50% [5],[26],[27] 6.50% [6],[15]    
Principal $ 4,219 [5],[26],[27] $ 3,967 [6],[15]    
Cost 4,143 [5],[26],[27] 3,906 [6],[15]    
Fair value $ 4,219 [5],[26],[27] $ 3,967 [6],[15]    
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 13.33% [5],[26],[27] 13.02% [6],[15]    
Reference Rate and Spread 5.75% [5],[26],[27] 6.25% [6],[15]    
PIK Rate 2.00% [5],[26],[27] 2.00% [6],[15]    
Principal $ 6,378 [5],[26],[27] $ 6,250 [6],[15]    
Cost 6,354 [5],[26],[27] 6,212 [6],[15]    
Fair value $ 6,246 [5],[26],[27] $ 5,597 [6],[15]    
Investment, Identifier [Axis]: Rug Doctor, LLC., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.33% [5],[26],[27] 13.02% [6],[15]    
Reference Rate and Spread 5.75% [5],[26],[27] 6.25% [6],[15]    
PIK Rate 2.00% [5],[26],[27] 2.00% [6],[15]    
Principal $ 9,439 [5],[26],[27] $ 9,250 [6],[15]    
Cost 9,402 [5],[26],[27] 9,190 [6],[15]    
Fair value $ 9,244 [5],[26],[27] $ 8,293 [6],[15]    
Investment, Identifier [Axis]: SI East, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares) 55 [30] 52 [29]    
Cost $ 508 [30] $ 406 [29]    
Fair value $ 5,840 [30] 4,550 [29] $ 4,980 3,860
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.25%   10.25%  
Principal $ 625 0    
Cost 619 0    
Fair value $ 625 $ 0 $ 750 750
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.49% 9.50% 10.25%  
Principal $ 18,179 $ 29,929    
Cost 18,009 29,795    
Fair value $ 18,179 29,929 $ 31,079 21,200
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 2.1        
Schedule of Investments [Line Items]        
Total Rate 12.49%      
Fair value $ 18,179 0    
Investment, Identifier [Axis]: SI East, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Fair value $ 0 $ 29,929    
Investment, Identifier [Axis]: SIB Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 119,048 [5] 119,048 [6]    
Cost $ 250 [5] $ 250 [6]    
Fair value $ 55 [5] $ 183 [6]    
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.81% [5],[26],[27] 11.01% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 6.25% [6],[15]    
Principal $ 909 [5],[26],[27] $ 522 [6],[15]    
Cost 901 [5],[26],[27] 511 [6],[15]    
Fair value $ 822 [5],[26],[27] $ 491 [6],[15]    
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.81% [5],[26],[27] 11.01% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 6.25% [6],[15]    
Principal $ 1,917 [5],[26],[27] $ 1,954 [6],[15]    
Cost 1,881 [5],[26],[27] 1,908 [6],[15]    
Fair value $ 1,738 [5],[26],[27] $ 1,803 [6],[15]    
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.81% [5],[26],[27] 11.01% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 6.25% [6],[15]    
Principal $ 7,521 [5],[26],[27] $ 9,726 [6],[15]    
Cost 7,425 [5],[26],[27] 9,576 [6],[15]    
Fair value $ 6,800 [5],[26],[27] $ 8,974 [6],[15]    
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.81%      
Reference Rate and Spread [5],[26],[27] 6.25%      
Principal [5],[26],[27] $ 571      
Cost [5],[26],[27] 564      
Fair value [5],[26],[27] $ 517      
Investment, Identifier [Axis]: SIB Holdings, LLC, Secured Debt 5        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.81%      
Reference Rate and Spread [5],[26],[27] 6.25%      
Principal [5],[26],[27] $ 1,388      
Cost [5],[26],[27] 1,370      
Fair value [5],[26],[27] $ 1,255      
Investment, Identifier [Axis]: SPAU Holdings, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 200,000 [5] 200,000 [6]    
Cost $ 200 [5] $ 200 [6]    
Fair value $ 160 [5] $ 200 [6]    
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 13.11%      
Reference Rate and Spread 7.50% [5],[26],[27] 7.50% [6],[15]    
Principal $ 780 [5],[26],[27] $ 0 [6],[15]    
Cost 765 [5],[26],[27] (18) [6],[15]    
Fair value $ 780 [5],[26],[27] $ (18) [6],[15]    
Investment, Identifier [Axis]: SPAU Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.22% [5],[26],[27] 11.06% [6],[15]    
Reference Rate and Spread 7.50% [5],[26],[27] 7.50% [6],[15]    
Principal $ 4,950 [5],[26],[27] $ 4,975 [6],[15]    
Cost 4,877 [5],[26],[27] 4,887 [6],[15]    
Fair value $ 4,950 [5],[26],[27] $ 4,975 [6],[15]    
Investment, Identifier [Axis]: Savers, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [8],[15]   10.34%    
Reference Rate and Spread [8],[15]   5.50%    
Principal [8],[15]   $ 4,281    
Cost [8],[15]   4,270    
Fair value [8],[15]   $ 4,149    
Investment, Identifier [Axis]: Slick Innovations, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 17,500 [30] 17,500 [29]    
Cost $ 114 [30] $ 114 [29]    
Fair value $ 520 [30] $ 400 [29]    
Investment, Identifier [Axis]: Slick Innovations, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 14.00% 14.00%    
Principal $ 3,040 $ 3,460    
Cost 2,946 3,334    
Fair value $ 3,040 $ 3,460    
Investment, Identifier [Axis]: Sonic Systems International, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) [6]   11,647    
Cost [6]   $ 1,584    
Fair value   $ 1,490 [6] $ 1,650 1,250
Investment, Identifier [Axis]: Sonic Systems International, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate   11.24% [6],[15] 9.78%  
Reference Rate and Spread 7.50% 7.50% [6],[15]    
Principal [6],[15]   $ 18,425    
Cost [6],[15]   18,143    
Fair value   $ 18,425 [6],[15] $ 18,242 13,738
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 60,606 [5] 60,606 [6]    
Cost $ 61 [5] $ 61 [6]    
Fair value $ 75 [5] $ 92 [6]    
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 6.25% [5],[26],[27],[28] 5.75% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (5) [5],[26],[27],[28] (6) [6],[15]    
Fair value $ (5) [5],[26],[27],[28] $ (6) [6],[15]    
Investment, Identifier [Axis]: South Coast Terminals Holdings, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.95% [5],[26],[27] 9.69% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 5.75% [6],[15]    
Principal $ 2,997 [5],[26],[27] $ 3,523 [6],[15]    
Cost 2,958 [5],[26],[27] 3,467 [6],[15]    
Fair value $ 2,997 [5],[26],[27] $ 3,523 [6],[15]    
Investment, Identifier [Axis]: Student Resource Center, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 6,564,055 [5] 6,564,055 [6]    
Cost $ 0 [5] $ 0 [6]    
Fair value $ 139 [5] $ 0 [6]    
Investment, Identifier [Axis]: Student Resource Center, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 8.50% [5] 13.27% [6]    
Reference Rate and Spread [6]   8.50%    
PIK Rate [5] 8.50%      
Principal $ 5,918 [5] $ 5,556 [6]    
Cost 5,426 [5] 5,063 [6]    
Fair value $ 5,298 [5] $ 5,063 [6]    
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares)   136    
Cost   $ 2,311    
Fair value   1,920 $ 1,784 2,145
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 136      
Cost $ 2,311      
Fair value $ 900 1,920    
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 1,062      
Cost $ 106      
Fair value $ 150 0    
Investment, Identifier [Axis]: Tedder Industries, LLC, Preferred Member Units 3        
Schedule of Investments [Line Items]        
Units (in shares) 1,200      
Cost $ 120      
Fair value $ 300 $ 0    
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.00% [35] 12.00% 12.00%  
Principal $ 460 [35] $ 460    
Cost 460 [35] 460    
Fair value $ 446 [35] $ 460 $ 460 259
Investment, Identifier [Axis]: Tedder Industries, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% [35] 12.00% 12.00%  
Principal $ 3,800 [35] $ 3,800    
Cost 3,800 [35] 3,797    
Fair value $ 3,681 [35] $ 3,780 $ 3,779 3,754
Investment, Identifier [Axis]: Tex Tech Tennis, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 1,000,000 [5],[38] 1,000,000 [6],[39]    
Cost $ 1,000 [5],[38] $ 1,000 [6],[39]    
Fair value $ 2,301 [5],[38] $ 1,830 [6],[39]    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock        
Schedule of Investments [Line Items]        
Units (in shares) [29]   320,000    
Cost [29]   $ 1,600    
Fair value [29]   $ 1,600    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 1        
Schedule of Investments [Line Items]        
Units (in shares) [30] 320,000      
Cost [30] $ 1,600      
Fair value [30] $ 1,600      
Investment, Identifier [Axis]: The Affiliati Network, LLC, Preferred Stock 2        
Schedule of Investments [Line Items]        
Units (in shares) 43,027      
Cost $ 43      
Fair value 43      
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate   13.00%    
Principal 0 [28] $ 30    
Cost (3) [28] 26    
Fair value $ (3) [28] $ 26    
Investment, Identifier [Axis]: The Affiliati Network, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00%    
Principal $ 1,980 $ 2,380    
Cost 1,954 2,341    
Fair value $ 1,938 $ 2,341    
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 154 [30] 154 [29]    
Cost $ 1,164 [30] $ 1,164 [29]    
Fair value 3,350 [30] 1,950 [29] 1,850 2,160
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Principal 0 [28] 0    
Cost (2) [28] (3)    
Fair value $ 0 [28] $ 0 $ 0 (6)
Investment, Identifier [Axis]: Trantech Radiator Topco, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.00% 12.00% 12.00%  
Principal $ 1,980 $ 1,980    
Cost 1,972 1,960    
Fair value $ 1,980 $ 1,980 $ 2,080 2,180
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [8],[15]   11.57%    
Reference Rate and Spread [8],[15]   1.25%    
PIK Rate [8],[15]   7.25%    
Principal [8],[15]   $ 13,425    
Cost [8],[15]   13,358    
Fair value [8],[15]   $ 5,018    
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [7],[26],[27] 6.00%      
Reference Rate and Spread [7],[26],[27] 1.00%      
PIK Rate [7],[26],[27] 6.00%      
Principal [7],[26],[27] $ 6,802      
Cost [7],[26],[27] 2,739      
Fair value [7],[26],[27] $ 2,691      
Investment, Identifier [Axis]: U.S. TelePacific Corp., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [7],[26],[27] 6.00%      
Reference Rate and Spread [7],[26],[27] 1.00%      
PIK Rate [7],[26],[27] 6.00%      
Principal [7],[26],[27] $ 692      
Cost [7],[26],[27] 15      
Fair value [7],[26],[27] $ 0      
Investment, Identifier [Axis]: US Bank Money Market Account        
Schedule of Investments [Line Items]        
Total Rate   0.005%    
Cost [14]   $ 8,347    
Fair value [14]   $ 8,347    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [6],[15]   9.82%    
Reference Rate and Spread [6],[15]   5.75%    
Principal [6],[15]   $ 18,013    
Cost [6],[15]   17,828    
Fair value [6],[15]   $ 18,013    
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.42%      
Reference Rate and Spread [5],[26],[27] 6.00%      
Principal [5],[26],[27] $ 17,876      
Cost [5],[26],[27] 17,729      
Fair value [5],[26],[27] $ 17,876      
Investment, Identifier [Axis]: USA DeBusk LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.92%      
Reference Rate and Spread [5],[26],[27] 6.50%      
Principal [5],[26],[27] $ 6,945      
Cost [5],[26],[27] 6,817      
Fair value [5],[26],[27] $ 6,945      
Investment, Identifier [Axis]: UserZoom Technologies, Inc., Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.42%      
Reference Rate and Spread [5],[26],[27] 7.50%      
Principal [5],[26],[27] $ 3,000      
Cost [5],[26],[27] 2,920      
Fair value [5],[26],[27] $ 3,000      
Investment, Identifier [Axis]: VORTEQ Coil Finishers, LLC, Common Equity        
Schedule of Investments [Line Items]        
Units (in shares) 769,231 [5],[30] 769,231 [6],[29]    
Cost $ 769 [5],[30] $ 769 [6],[29]    
Fair value $ 2,201 [5],[30] $ 2,910 [6],[29]    
Investment, Identifier [Axis]: VVS Holdco LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 2,960 [30],[38] 2,960 [29],[39]    
Cost $ 2,960 [30],[38] $ 2,960 [29],[39]    
Fair value $ 2,960 [30],[38] $ 2,990 [29],[39] $ 3,020 2,960
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate     8.63%  
Reference Rate and Spread 6.00% [26],[27],[28],[38] 6.00% [15],[39]    
Principal $ 0 [26],[27],[28],[38] $ 0 [15],[39]    
Cost (1) [26],[27],[28],[38] (5) [15],[39]    
Fair value $ (1) [26],[27],[28],[38] $ (5) [15],[39] $ 193 292
Investment, Identifier [Axis]: VVS Holdco LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.50% [38] 11.50% [39] 11.50%  
Principal $ 7,050 [38] $ 7,600 [39]    
Cost 6,915 [38] 7,421 [39]    
Fair value $ 6,915 [38] $ 7,421 [39] $ 7,409 $ 7,375
Investment, Identifier [Axis]: Vida Capital, Inc, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate [8]   10.38%    
Reference Rate and Spread [8]   6.00%    
Principal [8]   $ 6,263    
Cost [8]   6,208    
Fair value [8]   $ 4,885    
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 $ 2,341 [5] 2,250 [6]    
Investment, Identifier [Axis]: Volusion, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 772,620      
Cost $ 1,104      
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units        
Schedule of Investments [Line Items]        
Units (in shares)   2,090,001    
Cost   $ 6,000    
Fair value   0    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 1        
Schedule of Investments [Line Items]        
Units (in shares) 2,090,001      
Cost $ 6,000      
Fair value $ 0 0    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 2        
Schedule of Investments [Line Items]        
Units (in shares) 2,184,683      
Cost $ 4,606      
Fair value $ 4,010 0    
Investment, Identifier [Axis]: Volusion, LLC, Preferred Member Units 3        
Schedule of Investments [Line Items]        
Units (in shares) 61,077      
Cost $ 0      
Fair value $ 0 $ 0    
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 10.00% 11.50% [37]    
Principal $ 900 $ 7,172 [37]    
Cost 900 7,172 [37]    
Fair value $ 900 6,392 [37]    
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 10.00%      
Fair value $ 900 0    
Investment, Identifier [Axis]: Volusion, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Fair value 0 $ 6,392    
Investment, Identifier [Axis]: Volusion, LLC, Unsecured Convertible Debt        
Schedule of Investments [Line Items]        
Total Rate   8.00%    
Principal   $ 175    
Cost   175    
Fair value 0 $ 0    
Investment, Identifier [Axis]: Volusion, LLC, Warrants        
Schedule of Investments [Line Items]        
Units (in shares) [25]   784,867    
Cost [25]   $ 1,104    
Fair value $ 0 $ 0 [25]    
Investment, Identifier [Axis]: Wall Street Prep, Inc., Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 500,000 [5] 500,000 [6]    
Cost $ 500 [5] $ 500 [6]    
Fair value $ 580 [5] $ 530 [6]    
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 7.00% [5],[26],[27],[28] 7.00% [6],[15]    
Principal $ 0 [5],[26],[27],[28] $ 0 [6],[15]    
Cost (6) [5],[26],[27],[28] (7) [6],[15]    
Fair value $ (6) [5],[26],[27],[28] $ (7) [6],[15]    
Investment, Identifier [Axis]: Wall Street Prep, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.40% [5],[26],[27] 10.74% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27] 7.00% [6],[15]    
Principal $ 4,654 [5],[26],[27] $ 5,328 [6],[15]    
Cost 4,596 [5],[26],[27] 5,252 [6],[15]    
Fair value $ 4,654 [5],[26],[27] $ 5,216 [6],[15]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 11.79% [5],[26],[27],[61] 10.73% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27],[61] 6.00% [6],[15]    
Principal $ 303 [5],[26],[27],[61] $ 51 [6],[15]    
Cost 300 [5],[26],[27],[61] 46 [6],[15]    
Fair value $ 303 [5],[26],[27],[61] $ 51 [6],[15]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.79% [5],[26],[27] 10.73% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 6.00% [6],[15]    
Principal $ 53 [5],[26],[27] $ 53 [6],[15]    
Cost 46 [5],[26],[27] 45 [6],[15]    
Fair value $ 53 [5],[26],[27] $ 53 [6],[15]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 11.79% [5],[26],[27] 10.73% [6],[15]    
Reference Rate and Spread 6.25% [5],[26],[27] 6.00% [6],[15]    
Principal $ 2,177 [5],[26],[27] $ 4,142 [6],[15]    
Cost 2,155 [5],[26],[27] 4,089 [6],[15]    
Fair value $ 2,177 [5],[26],[27] $ 4,141 [6],[15]    
Investment, Identifier [Axis]: Watterson Brands, LLC, Secured Debt 4        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.79%      
Reference Rate and Spread [5],[26],[27] 6.25%      
Principal [5],[26],[27] $ 1,965      
Cost [5],[26],[27] 1,944      
Fair value [5],[26],[27] $ 1,965      
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Common Stock        
Schedule of Investments [Line Items]        
Units (in shares) 200,000 [5] 200,000 [6]    
Cost $ 200 [5] $ 200 [6]    
Fair value $ 360 [5] $ 250 [6]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 11.39%      
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 333 [5],[26],[27] $ 0 [6],[15]    
Cost 326 [5],[26],[27] (6) [6],[15]    
Fair value $ 333 [5],[26],[27] $ (6) [6],[15]    
Investment, Identifier [Axis]: West Star Aviation Acquisition, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 11.35% [5],[26],[27] 8.59% [6],[15]    
Reference Rate and Spread 6.00% [5],[26],[27] 6.00% [6],[15]    
Principal $ 2,955 [5],[26],[27] $ 2,978 [6],[15]    
Cost 2,911 [5],[26],[27] 2,926 [6],[15]    
Fair value $ 2,955 [5],[26],[27] $ 2,948 [6],[15]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Reference Rate and Spread 7.00% [5],[26],[28] 7.00% [6],[15]    
Principal $ 0 [5],[26],[28] $ 0 [6],[15]    
Cost (35) [5],[26],[28] (43) [6],[15]    
Fair value $ 0 [5],[26],[28] $ 0 [6],[15]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate [5],[26],[27] 12.51%      
Reference Rate and Spread 7.00% [5],[26],[27] 7.00% [6],[15]    
Principal $ 2,583 [5],[26],[27] $ 0 [6],[15]    
Cost 2,523 [5],[26],[27] (43) [6],[15]    
Fair value $ 2,583 [5],[26],[27] $ (43) [6],[15]    
Investment, Identifier [Axis]: Winter Services LLC, Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 12.51% [5],[26],[27] 10.74% [6],[15]    
Reference Rate and Spread 7.00% [5],[26],[27] 7.00% [6],[15]    
Principal $ 11,625 [5],[26],[27] $ 12,500 [6],[15]    
Cost 11,467 [5],[26],[27] 12,305 [6],[15]    
Fair value $ 11,625 [5],[26],[27] $ 12,487 [6],[15]    
Investment, Identifier [Axis]: World Micro Holdings, LLC, Preferred Equity        
Schedule of Investments [Line Items]        
Units (in shares) 530 [30] 530    
Cost $ 530 [30] $ 530    
Fair value $ 530 [30] $ 530    
Investment, Identifier [Axis]: World Micro Holdings, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 13.00% 13.00%    
Principal $ 1,848 $ 1,970    
Cost 1,817 1,930    
Fair value $ 1,817 $ 1,930    
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate [5],[27] 10.68%      
Reference Rate and Spread 5.25% [5],[27] 5.25% [6]    
Principal $ 199 [5],[27] $ 0 [6]    
Cost 195 [5],[27] (6) [6]    
Fair value $ 199 [5],[27] $ (6) [6]    
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 10.76% [5],[27] 10.84% [6]    
Reference Rate and Spread 5.25% [5],[27] 5.25% [6]    
Principal $ 1,194 [5],[27] $ 1,200 [6]    
Cost 1,168 [5],[27] 1,169 [6]    
Fair value $ 1,194 [5],[27] $ 1,192 [6]    
Investment, Identifier [Axis]: Xenon Arc, Inc., Secured Debt 3        
Schedule of Investments [Line Items]        
Total Rate 10.66% [5],[27] 8.63% [6]    
Reference Rate and Spread 5.25% [5],[27] 5.25% [6]    
Principal $ 2,358 [5],[27] $ 2,370 [6]    
Cost 2,327 [5],[27] 2,332 [6]    
Fair value $ 2,358 [5],[27] $ 2,354 [6]    
Investment, Identifier [Axis]: YS Garments, LLC, Secured Debt        
Schedule of Investments [Line Items]        
Total Rate 12.93% [7],[26],[27] 9.51% [8],[15]    
Reference Rate and Spread 7.50% [7],[26],[27] 5.50% [8],[15]    
Principal $ 5,677 [7],[26],[27] $ 6,329 [8],[15]    
Cost 5,569 [7],[26],[27] 6,310 [8],[15]    
Fair value $ 5,128 [7],[26],[27] $ 6,064 [8],[15]    
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 1        
Schedule of Investments [Line Items]        
Total Rate 12.67% [5],[26],[27],[62] 11.67% [6],[15]    
Reference Rate and Spread 7.25% [5],[26],[27],[62] 7.25% [6],[15]    
Principal $ 2,356 [5],[26],[27],[62] $ 2,388 [6],[15]    
Cost 2,345 [5],[26],[27],[62] 2,357 [6],[15]    
Fair value $ 2,209 [5],[26],[27],[62] $ 2,388 [6],[15]    
Investment, Identifier [Axis]: Zips Car Wash, LLC, Secured Debt 2        
Schedule of Investments [Line Items]        
Total Rate 12.68% [5],[26],[27],[62] 11.67% [6],[15],[63]    
Reference Rate and Spread 7.25% [5],[26],[27],[62] 7.25% [6],[15],[63]    
Principal $ 591 [5],[26],[27],[62] $ 599 [6],[15],[63]    
Cost 590 [5],[26],[27],[62] 594 [6],[15],[63]    
Fair value $ 555 [5],[26],[27],[62] $ 597 [6],[15],[63]    
[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.
[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] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments.
[8] Middle Market portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Middle Market portfolio investments.
[9] As of September 30, 2023, borrowings under the loan facility have multiple contracts that bear interest at either SOFR+7.75% or PRIME+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 the base rate applicable to the majority of the facility and the weighted-average rate for borrowings under the facility, as of September 30, 2023.
[10] 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.
[11] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments.
[12] Other Portfolio investment. See Note C—Fair Value Hierarchy for Investments—Portfolio Composition for a description of Other Portfolio investments.
[13] Investment is not a qualifying asset as defined under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets.
[14] Effective yield as of December 31, 2022 was approximately 0.005% on the US Bank Money Market Account.
[15] 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 LIBOR floors which range between 0.50% and 2.00%, with a weighted-average LIBOR floor of 1.04%.
[16] Short-term investments represent an investment in a fund that invests in highly liquid investments with average original maturity dates of three months or less. These short-term investments are included as Cash and cash equivalents on the Consolidated Balance Sheets.
[17] Short-term investments represent an investment in a fund that invests in highly liquid investments with average original maturity dates of three months or less. These short-term investments are included as Cash and cash equivalents on the Consolidated Balance Sheets.
[18] Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.
[19] Control investments are defined by the 1940 Act as investments in which more than 25% of the voting securities are owned or where the ability to nominate greater than 50% of the board representation is maintained.
[20] Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.
[21] Affiliate investments are defined by the 1940 Act as investments in which between 5% and 25% (inclusive) of the voting securities are owned and the investments are not classified as Control investments.
[22] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[23] Non-Control/Non-Affiliate investments are defined by the 1940 Act as investments that are neither Control investments nor Affiliate investments.
[24] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[25] Warrants are presented in equivalent shares/units with a strike price of $0.01 per share/unit.
[26] Index based floating interest rate is subject to contractual minimum interest rate. As noted in this schedule, 92% of the loans (based on the par amount) contain LIBOR or Term SOFR (“SOFR”) floors which range between 0.75% and 2.00%, with a weighted-average floor of 1.10%.
[27] A majority of the variable rate loans in the Company’s investment portfolio bear interest at a rate that may be determined by reference to either LIBOR (“L”), SOFR (“SF”) or an alternate base rate (commonly based on the Federal Funds Rate or the Prime rate (“P”)), which typically resets every one, three, or six months at the borrower’s option. SOFR based contracts may include a credit spread adjustment (the “Adjustment”) that is charged in addition to the stated spread. The Adjustment is applied when the SOFR rate, plus the Adjustment, exceeds the stated floor rate, as applicable. As of September 30, 2023, SOFR based contracts in the portfolio had Adjustments ranging from 0.10% to 0.43%.
[28] The position is unfunded and no interest income is being earned as of September 30, 2023. The position may earn a nominal unused facility fee on committed amounts.
[29] Income producing through dividends or distributions.
[30] Income producing through dividends or distributions.
[31] Warrants are presented in equivalent shares/units with a strike price of $1.00 per share/unit.
[32] Index based floating interest rate is subject to contractual maximum base rate of 3.00%.
[33] Index based floating interest rate is subject to contractual maximum base rate of 2.50%.
[34] Non-accrual and non-income producing debt investment.
[35] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[36] Non-accrual and non-income producing debt investment.
[37] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.
[38] Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[39] Shares/Units represent ownership in a related Real Estate or HoldCo entity.
[40] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[41] Investment is not unitized. Presentation is made in percent of fully diluted ownership unless otherwise indicated.
[42] The security has an effective contractual interest rate of 2.00% PIK + LIBOR+6.50%, Floor 1.00%,but the issuer may, in its discretion, elect to pay the PIK interest in cash. The rate presented represents the effective current yield based on actual payments received during the period.
[43] As of September 30, 2023, borrowings under the loan facility bear 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 September 30, 2023.
[44] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[45] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). Due to an amendment and subsequent funding during the quarter, the term loan facility has different floating rate reset dates. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[46] As of September 30, 2023, borrowings under the loan facility bore interest at LIBOR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023.
[47] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[48] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+8.50% (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 September 30, 2023.
[49] Effective yield as of September 30, 2023 was approximately 4.98% on the Fidelity Government Portfolio Class III Fund.
[50] Effective yield as of September 30, 2023 was approximately 5.21% on the First American Treasury Obligations Fund Class Z.
[51] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[52] As of September 30, 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 September 30, 2023.
[53] As of September 30, 2023, borrowings under the loan facility bear 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 September 30, 2023.
[54] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+10.00%. RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[55] As of December 31, 2022, borrowings under the loan facility bore interest at LIBOR+7.25% (Floor 0.75%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[56] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+ 8.00% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[57] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+5.75% (Floor 1.00%). Delayed draw term loan facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.
[58] Warrants are presented in equivalent units with a strike price of $14.28 per unit.
[59] Warrants are presented in equivalent units with a strike price of $14.28 per unit.
[60] As of September 30, 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 September 30, 2023.
[61] As of September 30, 2023, borrowings under the loan facility bore interest at SOFR+6.25% (Floor 1.00%). RLOC facility permits the borrower to make an interest rate election regarding the base rate on each draw under the facility. The rate presented represents a weighted-average rate for borrowings under the facility, as of September 30, 2023.
[62] As of September 30, 2023, borrowings under the loan facility bear 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 September 30, 2023.
[63] As of December 31, 2022, borrowings under the loan facility bore interest at SOFR+7.25% (Floor 1.00%). Each new draw on the delayed draw term loan facility has a different floating rate reset date. The rate presented represents a weighted-average rate for borrowings under the facility, as of December 31, 2022.