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CONSOLIDATED SCHEDULE OF INVESTMENTS (Unaudited) - USD ($)
$ in Thousands
Dec. 31, 2022
Mar. 31, 2022
Schedule of Investments [Line Items]    
Cost $ 1,159,712 [1],[2],[3],[4] $ 938,303 [5],[6],[7],[8]
Investments at fair value 1,150,046 [1],[3],[9] 936,614 [5],[7],[10]
Non-control/Non-affiliate investments    
Schedule of Investments [Line Items]    
Cost 907,535 [2],[4],[11] 721,392 [6],[8],[12]
Investments at fair value 929,089 [9],[11] 747,132 [10],[12]
Affiliate investments    
Schedule of Investments [Line Items]    
Cost 176,177 [2],[4],[13] 140,911 [6],[8],[14]
Investments at fair value 173,332 [9],[13] 131,879 [10],[14]
Control investments    
Schedule of Investments [Line Items]    
Cost 76,000 [2],[4],[15] 76,000 [6],[8],[16]
Investments at fair value 47,625 [9],[15] 57,603 [10],[16]
360 QUOTE TOPCO, LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 27,865  
Investments at fair value [9] 27,487  
AAC NEW HOLDCO INC.    
Schedule of Investments [Line Items]    
Cost 13,732 [2],[4] 12,636 [6],[8]
Investments at fair value 11,199 [9] 12,333 [10]
ACACIA BUYERCO V LLC    
Schedule of Investments [Line Items]    
Cost 5,765  
Investments at fair value 5,902  
ACCELERATION, LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 28,148  
Investments at fair value [9] 28,716  
ACCELERATION PARTNERS, LLC    
Schedule of Investments [Line Items]    
Cost 20,133 [2],[4] 12,600 [6],[8]
Investments at fair value 20,964 [9] 13,028 [10]
ALLIANCE SPORTS GROUP, L.P.    
Schedule of Investments [Line Items]    
Cost 2,673 [2],[4] 2,673 [6],[8]
Investments at fair value 3,444 [9] 4,176 [10]
AMERICAN NUTS OPERATIONS LLC    
Schedule of Investments [Line Items]    
Cost 27,610 [2],[4] 27,776 [6],[8]
Investments at fair value 25,662 [9] 29,095 [10]
AMERICAN TELECONFERENCING SERVICES, LTD. (DBA PREMIERE GLOBAL SERVICES, INC.)    
Schedule of Investments [Line Items]    
Cost 5,718 [2],[4] 5,748 [6],[8]
Investments at fair value 323 [9] 318 [10]
ARBORWORKS, LLC    
Schedule of Investments [Line Items]    
Cost 14,555 [2],[4] 12,704 [6],[8]
Investments at fair value 12,060 [9] 12,757 [10]
ATS OPERATING, LLC    
Schedule of Investments [Line Items]    
Cost 19,150 [2],[4] 20,094 [6],[8],[17]
Investments at fair value 19,204 [9] 20,094 [10],[17]
BROAD SKY NETWORKS LLC (DBA EPIC IO TECHNOLOGIES)    
Schedule of Investments [Line Items]    
Cost 1,221  
Investments at fair value 1,779  
BLASCHAK ANTHRACITE CORPORATION (FKA BLASCHAK COAL CORP.)    
Schedule of Investments [Line Items]    
Cost [6],[8]   11,135
Investments at fair value [10]   10,877
CADMIUM, LLC    
Schedule of Investments [Line Items]    
Cost 7,934 [2],[4] 7,615 [6],[8]
Investments at fair value 7,728 [9] 7,616 [10]
EXACT BORROWER, LLC    
Schedule of Investments [Line Items]    
Cost 19,452  
Investments at fair value 19,526  
FLIP ELECTRONICS, LLC    
Schedule of Investments [Line Items]    
Cost 35,940 [2],[4] 19,387 [6],[8]
Investments at fair value 52,342 [9] 24,128 [10]
FM SYLVAN, INC.    
Schedule of Investments [Line Items]    
Cost 14,513  
Investments at fair value 14,707  
FOOD PHARMA SUBSIDIARY HOLDINGS, LLC    
Schedule of Investments [Line Items]    
Cost 7,652 [2],[4] 7,635 [6],[8]
Investments at fair value 7,773 [9] 7,780 [10]
GAINS INTERMEDIATE, LLC    
Schedule of Investments [Line Items]    
Cost 14,484  
Investments at fair value 14,702  
GULF PACIFIC ACQUISITION, LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 3,799  
Investments at fair value [9] 3,826  
INFOLINKS MEDIA BUYCO, LLC    
Schedule of Investments [Line Items]    
Cost 8,120 [2],[4] 8,154 [6],[8]
Investments at fair value 8,617 [9] 8,203 [10]
ISI ENTERPRISES, LLC    
Schedule of Investments [Line Items]    
Cost 6,691 [2],[4] 6,672 [6],[8]
Investments at fair value 6,800 [9] 6,800 [10]
KMS, INC.    
Schedule of Investments [Line Items]    
Cost [2],[4],[18] 17,909  
Investments at fair value [9],[18] 16,879  
LASH OPCO, LLC    
Schedule of Investments [Line Items]    
Cost 10,556 [2],[4] 10,369 [6],[8]
Investments at fair value 10,533 [9] 10,404 [10]
LGM PHARMA, LLC    
Schedule of Investments [Line Items]    
Cost 15,620 [2],[4] 15,497 [6],[8]
Investments at fair value 15,001 [9] 13,703 [10]
LIGHTNING INTERMEDIATE II, LLC (DBA VIMERGY)    
Schedule of Investments [Line Items]    
Cost [2],[4] 23,010  
Investments at fair value [9] 22,863  
MAKO STEEL LP    
Schedule of Investments [Line Items]    
Cost 9,390 [2],[4] 8,813 [6],[8]
Investments at fair value 9,399 [9] 8,661 [10]
MERCURY ACQUISITION 2021, LLC (DBA TELE-TOWN HALL)    
Schedule of Investments [Line Items]    
Cost 14,891 [2],[4] 15,461 [6],[8]
Investments at fair value 15,674 [9] 16,997 [10]
MICROBE FORMULAS LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 11,541  
Investments at fair value [9] 11,663  
MUENSTER MILLING COMPANY, LLC    
Schedule of Investments [Line Items]    
Cost 22,366 [2],[4] 11,646 [6],[8]
Investments at fair value 22,800 [9] 12,000 [10]
NATIONAL CREDIT CARE, LLC    
Schedule of Investments [Line Items]    
Cost 21,110 [2],[4] 24,070 [6],[8]
Investments at fair value 21,296 [9] 24,342 [10]
NEUROPSYCHIATRIC HOSPITALS, LLC    
Schedule of Investments [Line Items]    
Cost 19,107 [2],[4] 18,892 [6],[8]
Investments at fair value 16,484 [9] 18,868 [10]
NEW SKINNY MIXES, LLC    
Schedule of Investments [Line Items]    
Cost 12,632  
Investments at fair value 12,741  
NINJATRADER, INC.    
Schedule of Investments [Line Items]    
Cost 24,791 [2],[4] 24,670 [6],[8]
Investments at fair value 34,172 [9] 32,716 [10]
NWN PARENT HOLDINGS, LLC    
Schedule of Investments [Line Items]    
Cost 13,359 [2],[4] 13,234 [6],[8]
Investments at fair value 13,049 [9] 13,230 [10]
OPCO BORROWER, LLC (DBA GIVING HOME HEALTH CARE)    
Schedule of Investments [Line Items]    
Cost [2],[4] 12,137  
Investments at fair value [9] 12,393  
PIPELINE TECHNIQUE LTD.    
Schedule of Investments [Line Items]    
Cost [2],[4],[19] 9,627  
Investments at fair value [9],[19] 9,687  
ROOF OPCO, LLC    
Schedule of Investments [Line Items]    
Cost 23,179 [2],[4] 18,143 [6],[8]
Investments at fair value 22,858 [9] 18,369 [10]
RTIC SUBSIDIARY HOLDINGS, LLC    
Schedule of Investments [Line Items]    
Cost 7,154 [2],[4] 8,227 [6],[8]
Investments at fair value 6,276 [9] 8,303 [10]
SCRIP INC.    
Schedule of Investments [Line Items]    
Cost 17,606 [2],[4] 17,521 [6],[8]
Investments at fair value 17,475 [9] 18,351 [10]
SHEARWATER RESEARCH, INC.9    
Schedule of Investments [Line Items]    
Cost 14,462 [2],[4],[19] 14,505 [6],[8],[20]
Investments at fair value 15,751 [9],[19] 14,557 [10],[20]
SIB HOLDINGS, LLC    
Schedule of Investments [Line Items]    
Cost 12,288 [2],[4] 7,852 [6],[8]
Investments at fair value 12,313 [9] 7,869 [10]
SOUTH COAST TERMINALS, LLC    
Schedule of Investments [Line Items]    
Cost 17,559 [2],[4] 17,640 [6],[8]
Investments at fair value 17,884 [9] 17,749 [10]
SPOTLIGHT AR, LLC    
Schedule of Investments [Line Items]    
Cost 8,100 [2],[4] 8,072 [6],[8]
Investments at fair value 8,472 [9] 8,108 [10]
SYSTEC CORPORATION (DBA INSPIRE AUTOMATION)    
Schedule of Investments [Line Items]    
Cost 9,329 [2],[4] 9,635 [6],[8]
Investments at fair value 9,405 [9] 9,653 [10]
THE PRODUCTO GROUP, LLC    
Schedule of Investments [Line Items]    
Cost 18,839 [2],[4] 13,901 [6],[8]
Investments at fair value 22,387 [9] 13,891 [10]
TRAFERA, LLC (FKA TRINITY 3, LLC)    
Schedule of Investments [Line Items]    
Cost [2],[4] 11,007  
Investments at fair value [9] 11,857  
US COURTSCRIPT HOLDINGS, INC.    
Schedule of Investments [Line Items]    
Cost [2],[4] 12,780  
Investments at fair value [9] 13,260  
VERSICARE MANAGEMENT LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 13,153  
Investments at fair value [9] 13,243  
WALL STREET PREP, INC.    
Schedule of Investments [Line Items]    
Cost 11,480 [2],[4] 11,653 [6],[8]
Investments at fair value 11,861 [9] 11,656 [10]
WELL-FOAM, INC.    
Schedule of Investments [Line Items]    
Cost 17,426 [2],[4] 17,500 [6],[8]
Investments at fair value 17,775 [9] 17,910 [10]
WINTER SERVICES OPERATIONS, LLC    
Schedule of Investments [Line Items]    
Cost 19,572 [2],[4] 21,945 [6],[8]
Investments at fair value 20,000 [9] 21,906 [10]
ZENFOLIO INC.    
Schedule of Investments [Line Items]    
Cost 20,709 [2],[4] 19,781 [6],[8]
Investments at fair value 20,046 [9] 19,815 [10]
ZIPS CAR WASH, LLC    
Schedule of Investments [Line Items]    
Cost 19,550 [2],[4] 15,850 [6],[8]
Investments at fair value 19,562 [9] 15,850 [10]
AIR CONDITIONING SPECIALIST, INC.    
Schedule of Investments [Line Items]    
Cost 25,444 [2],[4] 13,141 [6],[8]
Investments at fair value 26,303 [9] 13,169 [10]
CATBIRD NYC, LLC    
Schedule of Investments [Line Items]    
Cost 16,789 [2],[4] 17,033 [6],[8]
Investments at fair value 17,972 [9] 17,677 [10]
CENTRAL MEDICAL SUPPLY LLC    
Schedule of Investments [Line Items]    
Cost 8,767 [2],[4] 8,736 [6],[8]
Investments at fair value 8,075 [9] 8,288 [10]
DELPHI BEHAVIORAL HEALTH GROUP, LLC    
Schedule of Investments [Line Items]    
Cost 8,541 [2],[4] 7,414 [6],[8]
Investments at fair value 1,086 [9] 5,860 [10]
DYNAMIC COMMUNITIES, LLC    
Schedule of Investments [Line Items]    
Cost 9,946 [2],[4] 13,796 [6],[8]
Investments at fair value 10,321 [9] 12,247 [10]
GRAMMATECH, INC.    
Schedule of Investments [Line Items]    
Cost 11,189 [2],[4] 12,418 [6],[8]
Investments at fair value 9,457 [9] 10,487 [10]
ITA HOLDINGS GROUP, LLC    
Schedule of Investments [Line Items]    
Cost 27,400 [2],[4] 20,660 [6],[8]
Investments at fair value 33,346 [9] 25,190 [10]
LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE)    
Schedule of Investments [Line Items]    
Cost 10,365 [2],[4] 10,403 [6],[8]
Investments at fair value 7,531 [9] 7,884 [10]
OUTERBOX, LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 11,126  
Investments at fair value [9] 11,246  
ROSELAND MANAGEMENT, LLC    
Schedule of Investments [Line Items]    
Cost 16,651 [2],[4] 16,102 [6],[8]
Investments at fair value 15,395 [9] 16,605 [10]
STATINMED, LLC    
Schedule of Investments [Line Items]    
Cost [2],[4] 13,394  
Investments at fair value [9] 13,121  
STUDENT RESOURCE CENTER LLC    
Schedule of Investments [Line Items]    
Cost 14,565 [2],[4] 20,466 [6],[8]
Investments at fair value 14,565 [9] 20,416 [10]
BINSWANGER HOLDING CORP.    
Schedule of Investments [Line Items]    
Cost [6],[8]   11,005
Investments at fair value [10]   11,045
CITYVET, INC.    
Schedule of Investments [Line Items]    
Cost [6],[8]   13,156
Investments at fair value [10]   15,004
FAST SANDWICH, LLC    
Schedule of Investments [Line Items]    
Cost [6],[8]   3,240
Investments at fair value [10]   3,277
GS OPERATING, LLC    
Schedule of Investments [Line Items]    
Cost [6],[8]   10,923
Investments at fair value [10]   11,457
KLEIN HERSH, LLC    
Schedule of Investments [Line Items]    
Cost [6],[8]   23,402
Investments at fair value [10]   24,298
KMS, LLC    
Schedule of Investments [Line Items]    
Cost [6],[8]   15,732
Investments at fair value [10]   15,920
TRAFERA, LLC (FKA TRINITY 3, LLC)    
Schedule of Investments [Line Items]    
Cost [6],[8]   11,053
Investments at fair value [10]   12,919
SIMR, LLC    
Schedule of Investments [Line Items]    
Cost [6],[8]   19,208
Investments at fair value [10]   10,588
Investment, Identifier [Axis]: 360 QUOTE TOPCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal [21] 25,000  
Cost [2],[4],[21] 24,658  
Investments at fair value [9],[21] $ 24,325  
Investment interest rate [21],[22] 11.24%  
Floor [21],[22] 1.00%  
Investment, Identifier [Axis]: 360 QUOTE TOPCO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 3,250  
Cost [2],[4],[23] 3,207  
Investments at fair value [9],[23] $ 3,162  
Investment interest rate [22],[23] 11.24%  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., Common    
Schedule of Investments [Line Items]    
Principal   0
Cost [6],[8]   1,785
Investments at fair value [10]   1,785
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 9,749 8,653
Cost 9,749 [2],[4] 8,653 [6],[8]
Investments at fair value 9,603 [9] $ 8,350 [10]
Investment interest rate [24]   10.00%
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., Shares common stock    
Schedule of Investments [Line Items]    
Principal 0  
Cost [2],[4] 1,785  
Investments at fair value [9] 715  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., Warrants (Expiration - December 11, 2025)    
Schedule of Investments [Line Items]    
Principal 0 $ 0
Cost 2,198 [2],[4] 2,198 [6],[8]
Investments at fair value 881 [9] 2,198 [10]
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, 1,000,000 Class B-2 Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost 1,000  
Investments at fair value 1,000  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 0  
Cost (98)  
Investments at fair value $ 0  
Floor 1.00%  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 5,000  
Cost 4,902  
Investments at fair value $ 4,902  
Investment interest rate 11.12%  
Floor 1.00%  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, Revolver Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (39)  
Investments at fair value $ 0  
Floor 1.00%  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 0  
Investments at fair value [9],[19],[25] 0  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Principal [17],[20]   0
Cost [6],[8],[17],[20]   0
Investments at fair value [10],[17],[20]   0
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 19,550 [26] 11,875 [27]
Cost 19,133 [2],[4],[26] 11,600 [6],[8],[27]
Investments at fair value $ 19,550 [9],[26] $ 11,875 [10],[27]
Investment interest rate 12.08% [22],[26] 9.17% [24],[27]
Floor 1.00% [22],[26] 1.00% [24],[27]
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 1,000 [2],[4],[19],[25] 1,000 [6],[8],[17],[20]
Investments at fair value 1,414 [9],[19],[25] 1,153 [10],[17],[20]
Investment, Identifier [Axis]: ACCELERATION, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 107  
Investments at fair value [9],[19],[25] 152  
Investment, Identifier [Axis]: ACCELERATION, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [23] 0  
Cost [2],[4],[23] (44)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: ACCELERATION, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 9,263  
Cost [2],[4] 9,094  
Investments at fair value [9] $ 9,097  
Investment interest rate [22] 11.32%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: ACCELERATION, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 9,263  
Cost [2],[4] 9,093  
Investments at fair value [9] $ 9,097  
Investment interest rate [22] 12.32%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: ACCELERATION, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal $ 9,263  
Cost [2],[4] 9,094  
Investments at fair value [9] $ 9,097  
Investment interest rate [22] 13.32%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: ACCELERATION, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 893  
Investments at fair value [9],[19],[25] 1,273  
Investment, Identifier [Axis]: ACCELERATION, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] 0  
Cost [2],[4],[23] (89)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: ACE GATHERING, INC.    
Schedule of Investments [Line Items]    
Principal [18] $ 7,760  
Cost [2],[4],[18] 7,722  
Investments at fair value [9],[18] $ 6,961  
Investment interest rate [18],[22] 16.85%  
Floor [18],[22] 2.00%  
Investment, Identifier [Axis]: ACE GATHERING, INC., Second Lien    
Schedule of Investments [Line Items]    
Principal [28]   7,948
Cost [6],[8],[28]   7,881
Investments at fair value [10],[28]   $ 7,765
Investment interest rate [24],[28]   10.50%
Floor [24],[28]   2.00%
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 25,101 $ 12,778
Cost 24,650 [2],[4] 12,535 [6],[8]
Investments at fair value $ 25,101 [9] $ 12,535 [10]
Investment interest rate 11.34% [22] 8.25% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., Preferred Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 809 [2],[4],[19],[25] 624 [6],[8],[17],[20]
Investments at fair value 1,202 [9],[19],[25] 634 [10],[17],[20]
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal 0 [23] 0 [29]
Cost (15) [2],[4],[23] (18) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, L.P., Membership preferred interest    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost [2],[4] 2,500  
Investments at fair value [9] 3,173  
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, L.P., Preferred membership interest    
Schedule of Investments [Line Items]    
Principal   $ 0
Cost [6],[8]   2,500
Investments at fair value [10]   3,681
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, L.P., Unsecured convertible Note    
Schedule of Investments [Line Items]    
Principal 173  
Cost [2],[4] 173  
Investments at fair value [9] 271  
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, L.P., Unsecured convertible note    
Schedule of Investments [Line Items]    
Principal   173
Cost [6],[8]   173
Investments at fair value [10]   495
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal 12,357 12,450
Cost 12,305 [2],[4] 12,388 [6],[8]
Investments at fair value $ 12,356 [9] $ 12,450 [10]
Investment interest rate 10.46% [22] 7.75% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 12,357 $ 12,450
Cost 12,305 [2],[4] 12,388 [6],[8]
Investments at fair value $ 10,973 [9] $ 12,450 [10]
Investment interest rate 12.46% [22] 9.75% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, Units of Class A common stock    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 3,000 [2],[4],[19],[25] 3,000 [6],[8],[17],[20]
Investments at fair value 2,333 [9],[19],[25] 4,195 [10],[17],[20]
Investment, Identifier [Axis]: AMERICAN TELECONFERENCING SERVICES, LTD. (DBA PREMIERE GLOBAL SERVICES, INC.), First Lien    
Schedule of Investments [Line Items]    
Principal 4,899 [30] 4,899 [31]
Cost 4,858 [2],[4],[30] 4,858 [6],[8],[31]
Investments at fair value $ 274 [9],[30] $ 269 [10],[31]
Investment interest rate 9.00% [22],[30] 9.00% [24],[31]
Floor [22],[30] 2.00%  
Investment, Identifier [Axis]: AMERICAN TELECONFERENCING SERVICES, LTD. (DBA PREMIERE GLOBAL SERVICES, INC.), Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 868 [23],[30] $ 899 [29],[31]
Cost 860 [2],[4],[23],[30] 890 [6],[8],[29],[31]
Investments at fair value $ 49 [9],[23],[30] $ 49 [10],[29],[31]
Investment interest rate 9.00% [22],[23],[30] 9.00% [24],[29],[31]
Floor [22],[23],[30] 2.00%  
Investment, Identifier [Axis]: AMWARE FULFILLMENT LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 17,098 $ 16,376
Cost 17,095 [2],[4] 16,375 [6],[8]
Investments at fair value $ 17,098 [9] $ 16,376 [10]
Investment interest rate 12.82% [22] 10.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ARBORWORKS, LLC, Class A Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0
Cost 100 [2],[4],[19],[25] 100 [6],[8]
Investments at fair value 0 [9],[19],[25] 100 [10]
Investment, Identifier [Axis]: ARBORWORKS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 12,708 12,903
Cost 12,502 [2],[4] 12,660 [6],[8]
Investments at fair value $ 10,420 [9] $ 12,657 [10]
Investment interest rate 13.56% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ARBORWORKS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 2,000 [23] $ 0 [29]
Cost 1,953 [2],[4],[23] (56) [6],[8],[29]
Investments at fair value $ 1,640 [9],[23] $ 0 [10],[29]
Investment interest rate [22],[23] 13.41%  
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ASC ORTHO MANAGEMENT COMPANY, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 1,026 [2],[4],[19],[25] 801 [6],[8],[17],[20]
Investments at fair value 847 [9],[19],[25] 584 [10],[17],[20]
Investment, Identifier [Axis]: ATS OPERATING, LLC, Preferred units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 1,000  
Investments at fair value [9],[19],[25] 1,000  
Investment, Identifier [Axis]: ATS OPERATING, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal 9,250 9,250
Cost 9,096 [2],[4] 9,071 [6],[8]
Investments at fair value $ 9,102 [9] $ 9,071 [10]
Investment interest rate 9.32% [22] 6.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ATS OPERATING, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 9,250 $ 9,250
Cost 9,094 [2],[4] 9,071 [6],[8]
Investments at fair value $ 9,102 [9] $ 9,071 [10]
Investment interest rate 11.32% [22] 8.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ATS OPERATING, LLC, Preferred units    
Schedule of Investments [Line Items]    
Principal [17],[20]   $ 0
Cost [6],[8],[17],[20]   1,000
Investments at fair value [10],[17],[20]   1,000
Investment, Identifier [Axis]: ATS OPERATING, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] 1,000 [29]
Cost (40) [2],[4],[23] 952 [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 952 [10],[29]
Investment interest rate [24],[29]   7.50%
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: BINSWANGER HOLDING CORP, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 10,121
Cost [6],[8]   10,105
Investments at fair value [10]   $ 10,121
Investment interest rate [24]   9.50%
Floor [24]   1.00%
Investment, Identifier [Axis]: BINSWANGER HOLDING CORP., Shares of common stock    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 900 [2],[4] 900 [6],[8]
Investments at fair value 123 [9] 924 [10]
Investment, Identifier [Axis]: BLASCHAK ANTHRACITE CORPORATION (FKA BLASCHAK COAL CORP.), Second Lien- Term Loan    
Schedule of Investments [Line Items]    
Principal [28]   9,064
Cost [6],[8],[28]   9,005
Investments at fair value [10],[28]   $ 8,793
Investment interest rate [24],[28]   15.00%
Floor [24],[28]   1.00%
Investment, Identifier [Axis]: BLASCHAK ANTHRACITE CORPORATION (FKA BLASCHAK COAL CORP.), Second Lien- Term Loan B    
Schedule of Investments [Line Items]    
Principal [28]   $ 2,149
Cost [6],[8],[28]   2,130
Investments at fair value [10],[28]   $ 2,084
Investment interest rate [24],[28]   15.00%
Floor [24],[28]   1.00%
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC (DBA EPIC IO TECHNOLOGIES), Series A Preferred units    
Schedule of Investments [Line Items]    
Principal 0 $ 0
Cost 1,132 [2],[4] 1,132 [6],[8]
Investments at fair value 1,779 [9] 1,420 [10]
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC, Series C Preferred units    
Schedule of Investments [Line Items]    
Principal 0  
Cost 89  
Investments at fair value 0  
Investment, Identifier [Axis]: CADMIUM, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 7,385 7,385
Cost 7,323 [2],[4] 7,313 [6],[8]
Investments at fair value $ 7,134 [9] $ 7,314 [10]
Investment interest rate 11.73% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: CADMIUM, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 615 $ 308 [29]
Cost 611 [2],[4] 302 [6],[8],[29]
Investments at fair value $ 594 [9] $ 302 [10],[29]
Investment interest rate 11.73% [22] 8.00% [24],[29]
Floor 1.00% [22] 1.00% [24],[29]
Investment, Identifier [Axis]: CALIFORNIA PIZZA KITCHEN, INC., Shares of common stock    
Schedule of Investments [Line Items]    
Principal   $ 0
Cost [6],[8]   1,317
Investments at fair value [10]   2,090
Investment, Identifier [Axis]: CAMIN CARGO CONTROL, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 5,707 5,752
Cost 5,665 [2],[4] 5,702 [6],[8]
Investments at fair value $ 5,707 [9] $ 5,700 [10]
Investment interest rate 10.88% [22] 7.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Class A units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25],[32] $ 0 [17],[20]
Cost 1,000 [2],[4],[19],[25],[32] 1,000 [6],[8],[17],[20]
Investments at fair value 1,658 [9],[19],[25],[32] 1,221 [10],[17],[20]
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Class B units    
Schedule of Investments [Line Items]    
Principal 0 [19],[23],[25],[32] 0 [17],[20],[29]
Cost 500 [2],[4],[19],[23],[25],[32] 500 [6],[8],[17],[20],[29]
Investments at fair value 714 [9],[19],[23],[25],[32] 572 [10],[17],[20],[29]
Investment, Identifier [Axis]: CATBIRD NYC, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 15,600 15,900
Cost 15,350 [2],[4] 15,606 [6],[8]
Investments at fair value $ 15,600 [9] $ 15,884 [10]
Investment interest rate 10.74% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (61) [2],[4],[23] (73) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Delayed Draw Capex Term Loan    
Schedule of Investments [Line Items]    
Principal $ 100 [23] $ 100
Cost 85 [2],[4],[23] 81 [6],[8]
Investments at fair value $ 98 [9],[23] $ 97 [10]
Investment interest rate 12.74% [22],[23] 10.75% [24]
Floor 1.75% [22],[23] 1.75% [24]
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 7,500 $ 7,500
Cost 7,420 [2],[4] 7,398 [6],[8]
Investments at fair value $ 7,327 [9] $ 7,260 [10]
Investment interest rate 12.74% [22] 10.75% [24]
Floor 1.75% [22] 1.75% [24]
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 976 [2],[4],[19],[25] 976 [6],[8],[17],[20]
Investments at fair value 357 [9],[19],[25] 641 [10],[17],[20]
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal 300 [23] 300 [29]
Cost 286 [2],[4],[23] 281 [6],[8],[29]
Investments at fair value $ 293 [9],[23] $ 290 [10],[29]
Investment interest rate 12.74% [22],[23] 10.75% [24],[29]
Floor 1.75% [22],[23] 1.75% [24],[29]
Investment, Identifier [Axis]: CHANDLER SIGNS, LLC, Units of Class A-1 common stock    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 1,500 [2],[4],[19],[25] 1,500 [6],[8],[17],[20]
Investments at fair value 2,893 [9],[19],[25] 924 [10],[17],[20]
Investment, Identifier [Axis]: CITYVET, INC., Class A units    
Schedule of Investments [Line Items]    
Principal [17],[20]   0
Cost [6],[8],[17],[20]   500
Investments at fair value [10],[17],[20]   1,757
Investment, Identifier [Axis]: CITYVET, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   13,000
Cost [6],[8],[29]   12,656
Investments at fair value [10],[29]   $ 13,247
Investment interest rate [24],[29]   7.50%
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: CRAFTY APES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 15,000 [26] $ 10,000 [27]
Cost 14,898 [2],[4],[26] 9,921 [6],[8],[27]
Investments at fair value $ 15,000 [9],[26] $ 10,000 [10],[27]
Investment interest rate 11.73% [22],[26] 7.21% [24],[27]
Floor 1.00% [22],[26] 1.00% [24],[27]
Investment, Identifier [Axis]: DELPHI BEHAVIORAL HEALTH GROUP, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 3,615 [2],[4] 3,615 [6],[8]
Investments at fair value 0 [9] 2,460 [10]
Investment, Identifier [Axis]: DELPHI BEHAVIORAL HEALTH GROUP, LLC, First Lien, L+11.00% PIK    
Schedule of Investments [Line Items]    
Principal 1,649  
Cost [2],[4] 1,649  
Investments at fair value [9] $ 0  
Investment interest rate [22] 15.74%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: DELPHI BEHAVIORAL HEALTH GROUP, LLC, First Lien, L+9.00% PIK    
Schedule of Investments [Line Items]    
Principal $ 1,829 1,732
Cost 1,829 [2],[4] 1,732 [6],[8]
Investments at fair value $ 0 [9] $ 1,472 [10]
Investment interest rate 14.13% [22] 10.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: DELPHI BEHAVIORAL HEALTH GROUP, LLC, First Lien, L+9.50% PIK    
Schedule of Investments [Line Items]    
Principal   $ 1,541
Cost [6],[8]   1,541
Investments at fair value [10]   $ 1,402
Investment interest rate [24]   10.50%
Floor [24]   1.00%
Investment, Identifier [Axis]: DELPHI BEHAVIORAL HEALTH GROUP, LLC, Protective Advance    
Schedule of Investments [Line Items]    
Principal $ 1,448 $ 526
Cost 1,448 [2],[4] 526 [6],[8]
Investments at fair value $ 1,086 [9] $ 526 [10]
Investment interest rate 21.06% [22] 12.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: DUNN PAPER, INC., Second Lien    
Schedule of Investments [Line Items]    
Principal   $ 3,000
Cost [6],[8]   2,984
Investments at fair value [10]   $ 2,208
Investment interest rate [24]   10.25%
Floor [24]   1.00%
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, 2,500,000 Common units    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost 0  
Investments at fair value 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, 250,000 Class A Preferred Units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 250  
Investments at fair value [9],[19],[25] 625  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, 255,984.22 Class C Preferred Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost 0  
Investments at fair value 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, 5,435,211.03 Class B Preferred Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost 2,218  
Investments at fair value 2,218  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 11,221
Cost [6],[8]   11,147
Investments at fair value [10]   $ 10,323
Investment interest rate [24]   9.51%
Floor [24]   1.00%
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal 3,759  
Cost [2],[4] 3,739  
Investments at fair value [9] $ 3,739  
Investment interest rate [22] 8.92%  
Floor [22] 2.00%  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal [30] $ 3,761  
Cost [2],[4],[30] 3,739  
Investments at fair value [9],[30] $ 3,739  
Investment interest rate [22],[30] 10.92%  
Floor [22],[30] 2.00%  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal [17],[20]   $ 0
Cost [6],[8],[17],[20]   2,000
Investments at fair value [10],[17],[20]   1,274
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [29]   0
Cost [6],[8],[29]   (1)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Senior subordinated debt    
Schedule of Investments [Line Items]    
Principal   $ 650
Cost [6],[8]   650
Investments at fair value [10]   650
Investment, Identifier [Axis]: EVEREST TRANSPORTATION SYSTEMS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 8,594 8,938
Cost 8,523 [2],[4] 8,853 [6],[8]
Investments at fair value $ 8,594 [9] $ 8,848 [10]
Investment interest rate 12.73% [22] 9.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Common units    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost 615  
Investments at fair value 615  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 0  
Cost (25)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 9,450  
Cost 9,263  
Investments at fair value $ 9,263  
Investment interest rate 12.60%  
Floor 2.00%  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 9,450  
Cost 9,263  
Investments at fair value $ 9,263  
Investment interest rate 12.60%  
Floor 2.00%  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Promissory Note    
Schedule of Investments [Line Items]    
Principal $ 385  
Cost 385  
Investments at fair value $ 385  
Investment interest rate 13.574%  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (49)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: FAST SANDWICH, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 3,277
Cost [6],[8]   3,262
Investments at fair value [10]   $ 3,277
Investment interest rate [24]   10.00%
Floor [24]   1.00%
Investment, Identifier [Axis]: FAST SANDWICH, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 0
Cost [6],[8],[29]   (22)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: FLIP ELECTRONICS, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25],[32] $ 0 [17],[20],[33]
Cost 2,000 [2],[4],[19],[25],[32] 2,000 [6],[8],[17],[20],[33]
Investments at fair value 17,678 [9],[19],[25],[32] 6,373 [10],[17],[20],[33]
Investment, Identifier [Axis]: FLIP ELECTRONICS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 2,818 [23] 0 [29]
Cost 2,773 [2],[4],[23] (56) [6],[8],[29]
Investments at fair value $ 2,818 [9],[23] $ 0 [10],[29]
Investment interest rate [22],[23] 11.46%  
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: FLIP ELECTRONICS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 31,845 $ 17,755
Cost 31,167 [2],[4] 17,443 [6],[8]
Investments at fair value $ 31,846 [9] $ 17,755 [10]
Investment interest rate 12.08% [22] 8.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: FM SYLVAN, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 15,000  
Cost 14,707  
Investments at fair value $ 14,707  
Investment interest rate 12.47%  
Floor 1.00%  
Investment, Identifier [Axis]: FM SYLVAN, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (194)  
Investments at fair value $ 0  
Floor 1.00%  
Investment, Identifier [Axis]: FOOD PHARMA SUBSIDIARY HOLDINGS, LLC, Class A Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 750 [2],[4],[19],[25] 750 [6],[8],[17],[20]
Investments at fair value 743 [9],[19],[25] 750 [10],[17],[20]
Investment, Identifier [Axis]: FOOD PHARMA SUBSIDIARY HOLDINGS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   2,030
Cost [6],[8],[29]   1,971
Investments at fair value [10],[29]   $ 2,030
Investment interest rate [24],[29]   7.50%
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: FOOD PHARMA SUBSIDIARY HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 7,030 $ 5,000
Cost 6,902 [2],[4] 4,914 [6],[8]
Investments at fair value $ 7,030 [9] $ 5,000 [10]
Investment interest rate 10.24% [22] 7.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (168)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 7,500  
Cost 7,351  
Investments at fair value $ 7,351  
Investment interest rate 11.29%  
Floor 2.00%  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 7,500  
Cost 7,351  
Investments at fair value $ 7,351  
Investment interest rate 13.29%  
Floor 2.00%  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (50)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A units    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 1,000 [2],[4] 1,000 [6],[8]
Investments at fair value 344 [9] 674 [10]
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A-1 units    
Schedule of Investments [Line Items]    
Principal 0 0
Cost 248 [2],[4] 56 [6],[8]
Investments at fair value 85 [9] 38 [10]
Investment, Identifier [Axis]: GRAMMATECH, INC., First Lien    
Schedule of Investments [Line Items]    
Principal 10,031 11,500
Cost 9,957 [2],[4] 11,384 [6],[8]
Investments at fair value $ 9,028 [9] $ 9,775 [10]
Investment interest rate 13.21% [22] 11.50% [24]
Floor 2.00% [22] 2.00% [24]
Investment, Identifier [Axis]: GRAMMATECH, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (16) [2],[4],[23] (22) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 2.00% [22],[23] 2.00% [24],[29]
Investment, Identifier [Axis]: GS OPERATING, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 2,516
Cost [6],[8],[29]   2,406
Investments at fair value [10],[29]   $ 2,566
Investment interest rate [24],[29]   6.75%
Floor [24],[29]   0.75%
Investment, Identifier [Axis]: GS OPERATING, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 8,534
Cost [6],[8]   8,367
Investments at fair value [10]   $ 8,704
Investment interest rate [24]   6.75%
Floor [24]   0.75%
Investment, Identifier [Axis]: GS OPERATING, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 183
Cost [6],[8],[29]   150
Investments at fair value [10],[29]   $ 187
Investment interest rate [24],[29]   6.75%
Floor [24],[29]   0.75%
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 0  
Cost [2],[4],[23] (15)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 3,652  
Cost [2],[4] 3,581  
Investments at fair value [9] $ 3,579  
Investment interest rate [22] 10.73%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 252  
Cost [2],[4],[23] 233  
Investments at fair value [9],[23] $ 247  
Investment interest rate 10.42%  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: HYBRID APPAREL, LLC, Second Lien    
Schedule of Investments [Line Items]    
Principal $ 15,750 [18] $ 15,750 [28]
Cost 15,514 [2],[4],[18] 15,473 [6],[8],[28]
Investments at fair value $ 13,592 [9],[18] $ 15,246 [10],[28]
Investment interest rate 12.07% [18],[22] 9.25% [24],[28]
Floor 1.00% [18],[22] 1.00% [24],[28]
Investment, Identifier [Axis]: I-45 SLF LLC    
Schedule of Investments [Line Items]    
Principal [19],[23],[32] $ 0  
Cost [2],[4],[19],[23],[32] 76,000  
Investments at fair value [9],[19],[23],[32] 47,625  
Investment, Identifier [Axis]: I-45 SLF LLC, LLC equity interest    
Schedule of Investments [Line Items]    
Principal [20],[29],[33]   $ 0
Cost [6],[8],[20],[29],[33]   76,000
Investments at fair value [10],[20],[29],[33]   57,603
Investment, Identifier [Axis]: INFOLINKS MEDIA BUYCO, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 0 [23] 0 [29]
Cost (17) [2],[4],[23] (21) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: INFOLINKS MEDIA BUYCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 7,673 $ 7,731
Cost 7,549 [2],[4] 7,587 [6],[8]
Investments at fair value $ 7,673 [9] $ 7,615 [10]
Investment interest rate 10.23% [22] 7.01% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: INFOLINKS MEDIA BUYCO, LLC, LP interest    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[23],[25] $ 0 [17],[20],[29]
Cost 588 [2],[4],[19],[23],[25] 588 [6],[8],[17],[20],[29]
Investments at fair value 944 [9],[19],[23],[25] 588 [10],[17],[20],[29]
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 5,000 5,000
Cost 4,921 [2],[4] 4,908 [6],[8]
Investments at fair value $ 5,000 [9] $ 5,000 [10]
Investment interest rate 10.74% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 800 [23] $ 800 [29]
Cost 770 [2],[4],[23] 764 [6],[8],[29]
Investments at fair value $ 800 [9],[23] $ 800 [10],[29]
Investment interest rate 10.74% [22],[23] 8.00% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, Series A Preferred units    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 1,000 [2],[4] 1,000 [6],[8]
Investments at fair value 1,000 [9] 1,000 [10]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Class A Membership Interest    
Schedule of Investments [Line Items]    
Principal 0 [19],[25] 0 [17],[20],[33]
Cost 1,500 [2],[4],[19],[25] 1,500 [6],[8],[17],[20],[33]
Investments at fair value 4,051 [9],[19],[25] 3,063 [10],[17],[20],[33]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - PIK Note A    
Schedule of Investments [Line Items]    
Principal 3,189 2,959
Cost 3,151 [2],[4] 2,721 [6],[8]
Investments at fair value 3,123 [9] 2,959 [10]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - PIK Note B    
Schedule of Investments [Line Items]    
Principal 126 117
Cost 126 [2],[4] 117 [6],[8]
Investments at fair value 123 [9] 117 [10]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term B Loan    
Schedule of Investments [Line Items]    
Principal 5,043 5,036
Cost 5,039 [2],[4] 5,010 [6],[8]
Investments at fair value $ 5,068 [9] $ 5,061 [10]
Investment interest rate 15.82% [22] 12.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan    
Schedule of Investments [Line Items]    
Principal $ 10,086 $ 10,071
Cost 10,105 [2],[4] 10,041 [6],[8]
Investments at fair value $ 10,126 [9] $ 10,041 [10]
Investment interest rate 12.82% [22] 9.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 7,000 [23] $ 750 [29]
Cost 6,941 [2],[4],[23] 733 [6],[8],[29]
Investments at fair value $ 7,000 [9],[23] $ 750 [10],[29]
Investment interest rate 13.84% [22],[23] 10.00% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants (Expiration - March 29, 2029)9    
Schedule of Investments [Line Items]    
Principal [17],[20]   $ 0
Cost [6],[8],[17],[20]   538
Investments at fair value [10],[17],[20]   3,199
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants (Expiration - March 29, 2029)9,13    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 538  
Investments at fair value [9],[19],[25] 3,855  
Investment, Identifier [Axis]: JVMC HOLDINGS CORP, First Lien    
Schedule of Investments [Line Items]    
Principal   6,589
Cost [6],[8]   6,558
Investments at fair value [10]   $ 6,589
Investment interest rate [24]   8.00%
Floor [24]   1.00%
Investment, Identifier [Axis]: JVMC HOLDINGS CORP., First Lien    
Schedule of Investments [Line Items]    
Principal 6,246  
Cost [2],[4] 6,227  
Investments at fair value [9] $ 6,246  
Investment interest rate [22] 10.88%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: KLEIN HERSH, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 23,821
Cost [6],[8]   23,415
Investments at fair value [10]   $ 24,298
Investment interest rate [24]   7.85%
Floor [24]   0.75%
Investment, Identifier [Axis]: KLEIN HERSH, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 0
Cost [6],[8],[29]   (13)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   0.75%
Investment, Identifier [Axis]: KMS, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [18],[23] $ 2,251  
Cost [2],[4],[18],[23] 2,194  
Investments at fair value [9],[18],[23] $ 2,100  
Investment interest rate [18],[22],[23] 12.00%  
Floor [18],[22],[23] 1.00%  
Investment, Identifier [Axis]: KMS, INC., First Lien    
Schedule of Investments [Line Items]    
Principal [18] $ 15,840  
Cost [2],[4],[18] 15,715  
Investments at fair value [9],[18] $ 14,779  
Investment interest rate [18],[22] 12.00%  
Floor [18],[22] 1.00%  
Investment, Identifier [Axis]: KMS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 0
Cost [6],[8],[29]   (41)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: KMS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal [28]   $ 15,920
Cost [6],[8],[28]   15,773
Investments at fair value [10],[28]   $ 15,920
Investment interest rate [24],[28]   8.25%
Floor [24],[28]   1.00%
Investment, Identifier [Axis]: LASH OPCO, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 4,154
Cost [6],[8],[29]   4,034
Investments at fair value [10],[29]   $ 4,063
Investment interest rate [24],[29]   8.01%
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: LASH OPCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 10,558 $ 6,484
Cost 10,331 [2],[4] 6,345 [6],[8]
Investments at fair value $ 10,305 [9] $ 6,341 [10]
Investment interest rate 11.17% [22] 8.01% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: LASH OPCO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 233 [23] $ 0 [29]
Cost 225 [2],[4],[23] (10) [6],[8],[29]
Investments at fair value $ 228 [9],[23] $ 0 [10],[29]
Investment interest rate [22],[23] 11.57%  
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: LGM PHARMA, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal $ 2,501 $ 2,488
Cost 2,487 [2],[4] 2,463 [6],[8]
Investments at fair value $ 2,501 [9] $ 2,388 [10]
Investment interest rate 15.12% [22] 13.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: LGM PHARMA, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 11,478 $ 11,422
Cost 11,427 [2],[4] 11,346 [6],[8]
Investments at fair value $ 11,236 [9] $ 10,851 [10]
Investment interest rate 13.62% [22] 11.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: LGM PHARMA, LLC, Units of Class A common stock    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 1,600 [2],[4],[19],[25] 1,600 [6],[8],[17],[20]
Investments at fair value 1,158 [9],[19],[25] 376 [10],[17],[20]
Investment, Identifier [Axis]: LGM PHARMA, LLC, Unsecured convertible note    
Schedule of Investments [Line Items]    
Principal [19],[25] 106  
Cost [2],[4],[19],[25] 106  
Investments at fair value [9],[19],[25] 106  
Investment, Identifier [Axis]: LGM PHARMA, LLC., Unsecured convertible note    
Schedule of Investments [Line Items]    
Principal [17],[20]   88
Cost [6],[8],[17],[20]   88
Investments at fair value [10],[17],[20]   88
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Common units    
Schedule of Investments [Line Items]    
Principal 0 [19],[25] 0 [17],[20]
Cost 0 [2],[4],[19],[25] 0 [6],[8],[17],[20]
Investments at fair value 0 [9],[19],[25] 0 [10],[17],[20]
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), First Lien    
Schedule of Investments [Line Items]    
Principal 5,156 5,195
Cost 5,157 [2],[4] 5,195 [6],[8]
Investments at fair value $ 5,156 [9] $ 4,780 [10]
Investment interest rate 7.50% [22] 7.50% [24]
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost 0 [2],[4],[23] 0 [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Investment interest rate 7.50% [22],[23] 7.50% [24],[29]
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Second Lien    
Schedule of Investments [Line Items]    
Principal $ 5,208 [30] $ 5,208 [31]
Cost 5,208 [2],[4],[30] 5,208 [6],[8],[31]
Investments at fair value 2,375 [9],[30] 3,104 [10],[31]
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Series A Preferred units    
Schedule of Investments [Line Items]    
Principal 0 [19],[25] 0 [17],[20]
Cost 0 [2],[4],[19],[25] 0 [6],[8],[17],[20]
Investments at fair value 0 [9],[19],[25] 0 [10],[17],[20]
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC (DBA VIMERGY), First Lien    
Schedule of Investments [Line Items]    
Principal 22,859  
Cost [2],[4] 22,442  
Investments at fair value [9] $ 22,447  
Investment interest rate [22] 11.54%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC (DBA VIMERGY), LLC interest    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 600  
Investments at fair value [9],[19],[25] 416  
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC (DBA VIMERGY), Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] 0  
Cost [2],[4],[23] (32)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: LLFLEX, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 10,863 [18] 10,945 [28]
Cost 10,672 [2],[4],[18] 10,723 [6],[8],[28]
Investments at fair value $ 10,537 [9],[18] $ 10,671 [10],[28]
Investment interest rate 12.74% [18],[22] 10.00% [24],[28]
Floor 1.00% [18],[22] 1.00% [24],[28]
Investment, Identifier [Axis]: MAKO STEEL LP, First Lien    
Schedule of Investments [Line Items]    
Principal $ 7,919 $ 8,032
Cost 7,810 [2],[4] 7,900 [6],[8]
Investments at fair value $ 7,816 [9] $ 7,751 [10]
Investment interest rate 11.09% [22] 8.38% [24]
Floor 0.75% [22] 0.75% [24]
Investment, Identifier [Axis]: MAKO STEEL LP, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 1,604 [23] $ 943 [29]
Cost 1,580 [2],[4],[23] 913 [6],[8],[29]
Investments at fair value $ 1,583 [9],[23] $ 910 [10],[29]
Investment interest rate 11.76% [22],[23] 8.23% [24],[29]
Floor 0.75% [22],[23] 0.75% [24],[29]
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC (DBA TELE-TOWN HALL), First Lien    
Schedule of Investments [Line Items]    
Principal $ 12,375 $ 12,469
Cost 12,170 [2],[4] 12,232 [6],[8]
Investments at fair value $ 11,979 [9] $ 12,232 [10]
Investment interest rate 11.74% [22] 9.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC (DBA TELE-TOWN HALL), Second Lien    
Schedule of Investments [Line Items]    
Principal $ 2,767 $ 3,292
Cost 2,721 [2],[4] 3,229 [6],[8]
Investments at fair value $ 2,678 [9] $ 3,229 [10]
Investment interest rate 14.74% [22] 12.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC (DBA TELE-TOWN HALL), Series A units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 0 [2],[4],[19],[25] 0 [6],[8],[17],[20]
Investments at fair value 1,017 [9],[19],[25] 1,536 [10],[17],[20]
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 11,781  
Cost [2],[4] 11,569  
Investments at fair value [9] $ 11,663  
Investment interest rate [22] 10.67%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 0  
Cost [2],[4],[23] (28)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Class A units    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost 1,000  
Investments at fair value 1,000  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   0
Cost [6],[8],[29]   (52)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 21,800 $ 12,000
Cost 21,438 [2],[4] 11,785 [6],[8]
Investments at fair value $ 21,800 [9] $ 12,000 [10]
Investment interest rate 11.43% [22] 8.25% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (72) [2],[4],[23] (87) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, Class A-3 Preferred units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 2,000 [2],[4],[19],[25] 2,000 [6],[8],[17],[20]
Investments at fair value 2,000 [9],[19],[25] 2,000 [10],[17],[20]
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal 9,716 11,250
Cost 9,555 [2],[4] 11,035 [6],[8]
Investments at fair value $ 9,716 [9] $ 11,171 [10]
Investment interest rate 10.24% [22] 7.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal $ 9,716 $ 11,250
Cost 9,555 [2],[4] 11,035 [6],[8]
Investments at fair value $ 9,580 [9] $ 11,171 [10]
Investment interest rate 11.24% [22] 8.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 0
Cost [6],[8],[29]   (82)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 14,993 $ 14,913
Cost 14,774 [2],[4] 14,657 [6],[8]
Investments at fair value $ 12,744 [9] $ 14,569 [10]
Investment interest rate 11.74% [22] 9.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 4,400 [23] $ 4,400 [29]
Cost 4,333 [2],[4],[23] 4,317 [6],[8],[29]
Investments at fair value $ 3,740 [9],[23] $ 4,299 [10],[29]
Investment interest rate 11.74% [22],[23] 9.00% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: NEW SKINNY MIXES, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (30)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: NEW SKINNY MIXES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 13,000  
Cost 12,741  
Investments at fair value $ 12,741  
Investment interest rate 12.71%  
Floor 2.00%  
Investment, Identifier [Axis]: NEW SKINNY MIXES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost (79)  
Investments at fair value $ 0  
Floor 2.00%  
Investment, Identifier [Axis]: NINJATRADER, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (32) [2],[4],[23] (45) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: NINJATRADER, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 23,150 $ 23,150
Cost 22,826 [2],[4] 22,719 [6],[8]
Investments at fair value $ 23,034 [9] $ 23,150 [10]
Investment interest rate 9.99% [22] 7.25% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: NINJATRADER, INC., Preferred Unit    
Schedule of Investments [Line Items]    
Principal [17],[20],[33]   $ 0
Cost [6],[8],[17],[20],[33]   2,000
Investments at fair value [10],[17],[20],[33]   9,566
Investment, Identifier [Axis]: NINJATRADER, INC., Preferred Units    
Schedule of Investments [Line Items]    
Principal [19],[25],[32] $ 0  
Cost [2],[4],[19],[25],[32] 2,000  
Investments at fair value [9],[19],[25],[32] 11,138  
Investment, Identifier [Axis]: NINJATRADER, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal 0 [23] 0 [29]
Cost (3) [2],[4],[23] (4) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: NWN PARENT HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 12,755 $ 13,066
Cost 12,573 [2],[4] 12,844 [6],[8]
Investments at fair value $ 12,270 [9] $ 12,818 [10]
Investment interest rate 12.56% [22] 7.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: NWN PARENT HOLDINGS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 810 [23] $ 420 [29]
Cost 786 [2],[4],[23] 390 [6],[8],[29]
Investments at fair value $ 779 [9],[23] $ 412 [10],[29]
Investment interest rate 12.32% [22],[23] 7.50% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: OPCO BORROWER, LLC (DBA GIVING HOME HEALTH CARE), First Lien    
Schedule of Investments [Line Items]    
Principal $ 9,109  
Cost [2],[4] 9,024  
Investments at fair value [9] $ 9,109  
Investment interest rate [22] 11.18%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: OPCO BORROWER, LLC (DBA GIVING HOME HEALTH CARE), Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 167  
Cost [2],[4],[23] 159  
Investments at fair value [9],[23] $ 167  
Investment interest rate [22],[23] 10.87%  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: OPCO BORROWER, LLC (DBA GIVING HOME HEALTH CARE), Second Lien    
Schedule of Investments [Line Items]    
Principal $ 3,000  
Cost [2],[4] 2,747  
Investments at fair value [9] $ 2,910  
Investment interest rate [22] 12.50%  
Investment, Identifier [Axis]: OPCO BORROWER, LLC (DBA GIVING HOME HEALTH CARE), Warrants (Expiration - August 19, 2029)    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost [2],[4] 207  
Investments at fair value [9] 207  
Investment, Identifier [Axis]: OUTERBOX, LLC, Class A common units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 500  
Investments at fair value [9],[19],[25] 500  
Investment, Identifier [Axis]: OUTERBOX, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 10,800  
Cost [2],[4] 10,653  
Investments at fair value [9] $ 10,746  
Investment interest rate [22] 10.57%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: OUTERBOX, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 0  
Cost [2],[4],[23] (27)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: PIPELINE TECHNIQUE LTD., First Lien    
Schedule of Investments [Line Items]    
Principal [19] $ 9,875  
Cost [2],[4],[19] 9,689  
Investments at fair value [9],[19] $ 9,687  
Investment interest rate [19],[22] 11.80%  
Floor [19],[22] 1.00%  
Investment, Identifier [Axis]: PIPELINE TECHNIQUE LTD., Revolving Loan    
Schedule of Investments [Line Items]    
Principal [19],[23] $ 0  
Cost [2],[4],[19],[23] (62)  
Investments at fair value [9],[19],[23] $ 0  
Floor [19],[22],[23] 1.00%  
Investment, Identifier [Axis]: RESEARCH NOW GROUP, INC., Second Lien    
Schedule of Investments [Line Items]    
Principal $ 10,500 $ 10,500
Cost 10,138 [2],[4] 10,066 [6],[8]
Investments at fair value $ 6,930 [9] $ 10,217 [10]
Investment interest rate 14.43% [22] 10.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ROOF OPCO, LLC, Class A Units    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 750  
Investments at fair value [9],[19],[25] 597  
Investment, Identifier [Axis]: ROOF OPCO, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   $ 7,578
Cost [6],[8],[29]   7,394
Investments at fair value [10],[29]   $ 7,578
Investment interest rate [24],[29]   7.00%
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: ROOF OPCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 21,633 $ 11,000
Cost 21,251 [2],[4] 10,802 [6],[8]
Investments at fair value $ 21,071 [9] $ 10,791 [10]
Investment interest rate 10.32% [22] 7.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ROOF OPCO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 1,222 [23] $ 0 [29]
Cost 1,178 [2],[4],[23] (53) [6],[8],[29]
Investments at fair value $ 1,190 [9],[23] $ 0 [10],[29]
Investment interest rate 10.97%  
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Class A Units    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 1,517 [2],[4] 1,517 [6],[8]
Investments at fair value 956 [9] 1,905 [10]
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Class A-1 Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost [2],[4] 66  
Investments at fair value [9] 200  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 14,557 14,125
Cost 14,499 [2],[4] 14,021 [6],[8]
Investments at fair value $ 13,698 [9] $ 14,125 [10]
Investment interest rate 13.71% [22] 9.00% [24]
Floor 2.00% [22] 2.00% [24]
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 575 [23] $ 575 [29]
Cost 569 [2],[4],[23] 564 [6],[8],[29]
Investments at fair value $ 541 [9],[23] $ 575 [10],[29]
Investment interest rate 13.71% [22],[23] 9.00% [24],[29]
Floor 2.00% [22],[23] 2.00% [24],[29]
Investment, Identifier [Axis]: RTIC SUBSIDIARY HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 6,666 $ 6,933
Cost 6,616 [2],[4] 6,870 [6],[8]
Investments at fair value $ 5,799 [9] $ 6,933 [10]
Investment interest rate 11.97% [22] 9.00% [24]
Floor 1.25% [22] 1.25% [24]
Investment, Identifier [Axis]: RTIC SUBSIDIARY HOLDINGS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 548 [23] $ 1,370
Cost 538 [2],[4],[23] 1,357 [6],[8]
Investments at fair value $ 477 [9],[23] $ 1,370 [10]
Investment interest rate 12.09% [22],[23] 9.00% [24]
Floor 1.25% [22],[23] 1.25% [24]
Investment, Identifier [Axis]: SCRIP INC., First Lien    
Schedule of Investments [Line Items]    
Principal [26] $ 16,750  
Cost [2],[4],[26] 16,606  
Investments at fair value [9],[26] $ 16,415  
Investment interest rate [22],[26] 15.45%  
Floor [22],[26] 2.00%  
Investment, Identifier [Axis]: SCRIP INC., Shares of common stock    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 1,000 [2],[4] 1,000 [6],[8]
Investments at fair value 1,060 [9] 1,601 [10]
Investment, Identifier [Axis]: SCRIP, INC., First Lien    
Schedule of Investments [Line Items]    
Principal [27]   16,750
Cost [6],[8],[27]   16,521
Investments at fair value [10],[27]   $ 16,750
Investment interest rate [24],[27]   11.43%
Floor [24],[27]   2.00%
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Class A Common Units    
Schedule of Investments [Line Items]    
Principal 0 [19] $ 0 [20]
Cost 33 [2],[4],[19] 33 [6],[8],[20]
Investments at fair value 67 [9],[19] 33 [10],[20]
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Class A Preferred Units    
Schedule of Investments [Line Items]    
Principal 0 [19] 0 [20]
Cost 978 [2],[4],[19] 978 [6],[8],[20]
Investments at fair value 2,006 [9],[19] 979 [10],[20]
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [20],[29]   0
Cost [6],[8],[20],[29]   (27)
Investments at fair value [10],[20],[29]   $ 0
Floor [20],[24],[29]   1.00%
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., First Lien    
Schedule of Investments [Line Items]    
Principal 13,678 [19] $ 13,794 [20]
Cost 13,484 [2],[4],[19] 13,561 [6],[8],[20]
Investments at fair value $ 13,678 [9],[19] $ 13,545 [10],[20]
Investment interest rate 10.69% [19],[22] 7.25% [20],[24]
Floor 1.00% [19],[22] 1.00% [20],[24]
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[23] $ 0 [20],[29]
Cost (33) [2],[4],[19],[23] (40) [6],[8],[20],[29]
Investments at fair value $ 0 [9],[19],[23] $ 0 [10],[20],[29]
Floor 1.00% [19],[22],[23] 1.00% [20],[24],[29]
Investment, Identifier [Axis]: SIB HOLDINGS, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal [19],[25] $ 0  
Cost [2],[4],[19],[25] 500  
Investments at fair value [9],[19],[25] 720  
Investment, Identifier [Axis]: SIB HOLDINGS, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal [17],[20]   $ 0
Cost [6],[8],[17],[20]   500
Investments at fair value [10],[17],[20]   500
Investment, Identifier [Axis]: SIB HOLDINGS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [29]   0
Cost [6],[8],[29]   (9)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: SIB HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 11,455 $ 7,427
Cost 11,299 [2],[4] 7,324 [6],[8]
Investments at fair value $ 11,111 [9] $ 7,323 [10]
Investment interest rate 11.01% [22] 7.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: SIB HOLDINGS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 497 [23] $ 47 [29]
Cost 489 [2],[4],[23] 37 [6],[8],[29]
Investments at fair value $ 482 [9],[23] $ 46 [10],[29]
Investment interest rate 11.01% [22],[23] 7.00% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: SIMR, LLC, Class B Common Units    
Schedule of Investments [Line Items]    
Principal   $ 0
Cost [6],[8]   6,107
Investments at fair value [10]   0
Investment, Identifier [Axis]: SIMR, LLC, Class W Units    
Schedule of Investments [Line Items]    
Principal   0
Cost [6],[8]   0
Investments at fair value [10]   0
Investment, Identifier [Axis]: SIMR, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal [31]   13,235
Cost [6],[8],[31]   13,101
Investments at fair value [10],[31]   $ 10,588
Investment interest rate [24],[31]   19.00%
Floor [24],[31]   2.00%
Investment, Identifier [Axis]: SONOBI, INC., Class A Common Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 500 [2],[4],[19],[25] 500 [6],[8],[17],[20]
Investments at fair value 2,021 [9],[19],[25] 2,960 [10],[17],[20]
Investment, Identifier [Axis]: SOUTH COAST TERMINALS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 17,884 18,019
Cost 17,589 [2],[4] 17,676 [6],[8]
Investments at fair value $ 17,884 [9] $ 17,749 [10]
Investment interest rate 9.60% [22] 7.25% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: SOUTH COAST TERMINALS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (30) [2],[4],[23] (36) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 17,192  
Cost [2],[4] 16,901  
Investments at fair value [9] $ 16,865  
Investment interest rate [22] 11.25%  
Floor [22] 2.00%  
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, Common Units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 750 [2],[4],[19],[25] 750 [6],[8],[17],[20]
Investments at fair value 972 [9],[19],[25] 750 [10],[17],[20]
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 7,500 7,500
Cost 7,381 [2],[4] 7,359 [6],[8]
Investments at fair value $ 7,500 [9] $ 7,358 [10]
Investment interest rate 10.49% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (31) [2],[4],[23] (37) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: STATINMED, LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost [2],[4] 4,838  
Investments at fair value [9] 4,624  
Investment, Identifier [Axis]: STATINMED, LLC, Class B Preferred Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost [2],[4] 1,400  
Investments at fair value [9] 1,339  
Investment, Identifier [Axis]: STATINMED, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 119  
Cost 117  
Investments at fair value $ 119  
Investment interest rate 13.94%  
Floor 2.00%  
Investment, Identifier [Axis]: STATINMED, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 7,039  
Cost [2],[4] 7,039  
Investments at fair value [9] $ 7,039  
Investment interest rate [22] 13.80%  
Floor [22] 2.00%  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, 10,502,487.46 Preferred Units    
Schedule of Investments [Line Items]    
Principal $ 0  
Cost 5,845  
Investments at fair value $ 5,845  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, First Lien    
Schedule of Investments [Line Items]    
Principal   $ 18,823
Cost [6],[8]   18,489
Investments at fair value [10]   $ 18,597
Investment interest rate 8.50% 9.01% [24]
Floor [24]   1.00%
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal [17],[20]   $ 0
Cost [6],[8],[17],[20]   2,000
Investments at fair value [10],[17],[20]   1,819
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [29]   0
Cost [6],[8],[29]   (23)
Investments at fair value [10],[29]   $ 0
Floor [24],[29]   1.00%
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 8,889  
Cost [2],[4] 8,720  
Investments at fair value [9] 8,720  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 0  
Investments at fair value [9],[19],[25] 0  
Investment, Identifier [Axis]: SYSTEC CORPORATION (DBA INSPIRE AUTOMATION), Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal 0 [23] $ 0 [29]
Cost (20) [2],[4],[23] (25) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: SYSTEC CORPORATION (DBA INSPIRE AUTOMATION), First Lien    
Schedule of Investments [Line Items]    
Principal $ 9,000 $ 9,000
Cost 8,875 [2],[4] 8,844 [6],[8]
Investments at fair value $ 8,910 [9] $ 8,820 [10]
Investment interest rate 11.24% [22] 8.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: SYSTEC CORPORATION (DBA INSPIRE AUTOMATION), Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 500 [23] $ 850 [29]
Cost 474 [2],[4],[23] 816 [6],[8],[29]
Investments at fair value $ 495 [9],[23] $ 833 [10],[29]
Investment interest rate 11.59% [22],[23] 8.50% [24],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: THE PRODUCTO GROUP, LLC, Class A units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25] $ 0 [17],[20]
Cost 1,500 [2],[4],[19],[25] 1,500 [6],[8],[17],[20]
Investments at fair value 4,732 [9],[19],[25] 1,500 [10],[17],[20]
Investment, Identifier [Axis]: THE PRODUCTO GROUP, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal 17,655 12,644
Cost 17,339 [2],[4] 12,401 [6],[8]
Investments at fair value $ 17,655 [9] $ 12,391 [10]
Investment interest rate 13.44% [22] 10.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: TRAFERA, LLC (FKA TRINITY 3, LLC), Class A units    
Schedule of Investments [Line Items]    
Principal $ 0 [19],[25],[32] $ 0 [17],[20],[33]
Cost 1,205 [2],[4],[19],[25],[32] 1,205 [6],[8],[17],[20],[33]
Investments at fair value 1,967 [9],[19],[25],[32] 3,000 [10],[17],[20],[33]
Investment, Identifier [Axis]: TRAFERA, LLC (FKA TRINITY 3, LLC), First Lien    
Schedule of Investments [Line Items]    
Principal 9,800 [18] 9,875 [28]
Cost 9,712 [2],[4],[18] 9,764 [6],[8],[28]
Investments at fair value $ 9,800 [9],[18] $ 9,835 [10],[28]
Investment interest rate 11.50% [18],[22] 8.75% [24],[28]
Floor 1.00% [18],[22] 1.00% [24],[28]
Investment, Identifier [Axis]: TRAFERA, LLC (FKA TRINITY 3, LLC), Unsecured convertible note    
Schedule of Investments [Line Items]    
Principal $ 90 [19] $ 84 [17],[20]
Cost 90 [2],[4],[19] 84 [6],[8],[17],[20]
Investments at fair value 90 [9],[19] 84 [10],[17],[20]
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Class D-3 LP Units    
Schedule of Investments [Line Items]    
Principal [19],[25] 0  
Cost [2],[4],[19],[25] 1,000  
Investments at fair value [9],[19],[25] 1,211  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Class D-4 LP Units    
Schedule of Investments [Line Items]    
Principal 0  
Cost 212  
Investments at fair value 249  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [23] 5,000  
Cost [2],[4],[23] 4,875  
Investments at fair value [9],[23] $ 5,000  
Investment interest rate 10.37%  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 6,800  
Cost [2],[4] 6,693  
Investments at fair value [9] $ 6,800  
Investment interest rate [22] 9.82%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: USA DEBUSK, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 11,527 11,614
Cost 11,388 [2],[4] 11,451 [6],[8]
Investments at fair value $ 11,527 [9] $ 11,614 [10]
Investment interest rate 10.13% [22] 6.75% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: VERSICARE MANAGEMENT LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 0  
Cost [2],[4],[23] (46)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: VERSICARE MANAGEMENT LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal $ 13,500  
Cost [2],[4] 13,245  
Investments at fair value [9] $ 13,243  
Investment interest rate [22] 11.82%  
Floor [22] 1.00%  
Investment, Identifier [Axis]: VERSICARE MANAGEMENT LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal [23] $ 0  
Cost [2],[4],[23] (46)  
Investments at fair value [9],[23] $ 0  
Floor [22],[23] 1.00%  
Investment, Identifier [Axis]: VISTAR MEDIA INC., Shares of Series A preferred stock    
Schedule of Investments [Line Items]    
Principal $ 0 $ 0
Cost 1,874 [2],[4] 1,874 [6],[8]
Investments at fair value 8,806 [9] 9,273 [10]
Investment, Identifier [Axis]: VTX HOLDINGS, INC. (DBA VERTEX ONE), Series A Preferred units    
Schedule of Investments [Line Items]    
Principal 0 0
Cost 1,598 [2],[4] 1,598 [6],[8]
Investments at fair value 2,436 [9] 2,082 [10]
Investment, Identifier [Axis]: WALL STREET PREP, INC., Class A-1 Preferred Shares    
Schedule of Investments [Line Items]    
Principal 0 0
Cost 1,000 [2],[4] 1,000 [6],[8]
Investments at fair value 1,205 [9] 1,000 [10]
Investment, Identifier [Axis]: WALL STREET PREP, INC., First Lien    
Schedule of Investments [Line Items]    
Principal 10,656 10,863
Cost 10,494 [2],[4] 10,670 [6],[8]
Investments at fair value $ 10,656 [9] $ 10,656 [10]
Investment interest rate 10.74% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: WALL STREET PREP, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (14) [2],[4],[23] (17) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: WELL-FOAM, INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 17,775 $ 17,910
Cost 17,495 [2],[4] 17,583 [6],[8]
Investments at fair value $ 17,775 [9] $ 17,910 [10]
Investment interest rate 11.74% [22] 9.50% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: WELL-FOAM, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (69) [2],[4],[23] (83) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 0 [29]
Cost (34) [2],[4],[23] (41) [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 0 [10],[29]
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal $ 20,000 $ 20,000
Cost 19,675 [2],[4] 19,624 [6],[8]
Investments at fair value $ 20,000 [9] $ 19,520 [10]
Investment interest rate 10.74% [22] 8.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 0 [23] $ 2,444 [29]
Cost (69) [2],[4],[23] 2,362 [6],[8],[29]
Investments at fair value $ 0 [9],[23] $ 2,386 [10],[29]
Investment interest rate [24],[29]   8.00%
Floor 1.00% [22],[23] 1.00% [24],[29]
Investment, Identifier [Axis]: ZENFOLIO INC., First Lien    
Schedule of Investments [Line Items]    
Principal $ 18,773 $ 18,915
Cost 18,711 [2],[4] 18,785 [6],[8]
Investments at fair value $ 18,116 [9] $ 18,820 [10]
Investment interest rate 12.74% [22] 10.00% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ZENFOLIO INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal $ 2,000 $ 1,000 [29]
Cost 1,998 [2],[4] 996 [6],[8],[29]
Investments at fair value $ 1,930 [9] $ 995 [10],[29]
Investment interest rate 12.74% [22] 10.00% [24],[29]
Floor 1.00% [22] 1.00% [24],[29]
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, Delayed Draw Term Loan - A    
Schedule of Investments [Line Items]    
Principal $ 15,880 $ 16,000
Cost 15,631 [2],[4] 15,691 [6],[8]
Investments at fair value $ 15,642 [9] $ 15,691 [10]
Investment interest rate 11.67% [22] 8.25% [24]
Floor 1.00% [22] 1.00% [24]
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, Delayed Draw Term Loan - B    
Schedule of Investments [Line Items]    
Principal $ 3,980 $ 199 [29]
Cost 3,919 [2],[4] 159 [6],[8],[29]
Investments at fair value $ 3,920 [9] $ 159 [10],[29]
Investment interest rate 11.67% [22] 8.26% [24],[29]
Floor 1.00% [22] 1.00% [24],[29]
[1] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted.
[2] As of December 31, 2022, the cumulative gross unrealized appreciation for U.S. federal income tax purposes was approximately $66.9 million; cumulative gross unrealized depreciation for federal income tax purposes was $66.7 million. Cumulative net unrealized appreciation was $0.2 million, based on a tax cost of $1,150.6 million.
[3] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.
[4] Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.
[5] All debt investments are income-producing, unless otherwise noted. Equity investments and warrants are non-income producing, unless otherwise noted.
[6] As of March 31, 2022, the cumulative gross unrealized appreciation for U.S. federal income tax purposes is approximately $67.8 million; cumulative gross unrealized depreciation for federal income tax purposes is $61.7 million. Cumulative net unrealized appreciation is $6.1 million, based on a tax cost of $852.4 million.
[7] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.
[8] Represents amortized cost. Negative cost in this column represents the original issue discount of certain undrawn revolvers and delayed draw term loans.
[9] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the Board of Directors, using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.
[10] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the Board of Directors, using significant unobservable Level 3 inputs. Refer to Note 4 for further discussion.
[11] Non-Control/Non-Affiliate investments are generally defined by the Investment Company Act of 1940, as amended (the “1940 Act”), as investments that are neither control investments nor affiliate investments. At December 31, 2022, approximately 80.8% of the Company’s investment assets were non-control/non-affiliate investments. The fair value of these investments as a percent of net assets is 165.4%.
[12] Non-Control/Non-Affiliate investments are generally defined by the Investment Company Act of 1940, as amended (the “1940 Act”), as investments that are neither control investments nor affiliate investments. At March 31, 2022, approximately 79.8% of the Company’s investment assets were non-control/non-affiliate investments. The fair value of these investments as a percent of net assets is 177.5%.
[13] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At December 31, 2022, approximately 15.1% of the Company’s investment assets were affiliate investments. The fair value of these investments as a percent of net assets is 30.9%.
[14] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At March 31, 2022, approximately 14.1% of the Company’s investment assets were affiliate investments. The fair value of these investments as a percent of net assets is 31.3%.
[15] Control investments are generally defined by the 1940 Act as investments in which more than 25% of the voting securities are owned. At December 31, 2022, approximately 4.1% of the Company’s investment assets were control investments. The fair value of these investments as a percent of net assets is 8.5%.
[16] Control investments are generally defined by the 1940 Act as investments in which more than 25% of the voting securities are owned. At March 31, 2022, approximately 6.2% of the Company’s investment assets were control investments. The fair value of these investments as a percent of net assets is 13.7%.
[17] Investment is held through a wholly-owned taxable subsidiary.
[18] The investment is structured as a split lien term loan, which provides the Company with a first lien priority on certain assets of the obligor and a second lien priority on different assets of the obligor.
[19] Indicates assets that are not considered "qualifying assets" 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. As of December 31, 2022, approximately 13.5% of the Company's assets were non-qualifying assets.
[20] Indicates assets that are considered "non-qualifying assets” 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. As of March 31, 2022, approximately 12.8% of the Company's assets are non-qualifying assets.
[21] The investment is structured as a first lien first out term loan.
[22] The majority of investments bear interest at a rate that may be determined by reference to Secured Overnight Financing Rate ("SOFR"), London Interbank Offered Rate (“LIBOR” or “L”), or Prime (“P”) and reset daily (D), monthly (M), quarterly (Q), or semiannually (S). For each investment, the Company has provided the spread over SOFR, LIBOR or Prime and the current contractual interest rate in effect at December 31, 2022. Certain investments are subject to an interest rate floor. Certain investments, as noted, accrue payment-in-kind ("PIK") interest.
[23] The investment has an unfunded commitment as of December 31, 2022. Refer to Note 10 - Commitments and Contingencies for further discussion.
[24] The majority of investments bear interest at a rate that may be determined by reference to London Interbank Offered Rate (“LIBOR” or “L”), Secured Overnight Financing Rate ("SOFR") or Prime (“P”) and reset daily (D), monthly (M), quarterly (Q), or semiannually (S). For each investment, the Company has provided the spread over LIBOR, SOFR or Prime and the current contractual interest rate in effect at March 31, 2022. Certain investments are subject to an interest rate floor. Certain investments, as noted, accrue payment-in-kind ("PIK") interest.
[25] Investment is held through a wholly-owned taxable subsidiary.
[26] The investment is structured as a first lien last out term loan.
[27] The investment is structured as a first lien last out term loan.
[28] The investment is structured as a split lien term loan, which provides the Company with a first lien priority on certain assets of the obligor and a second lien priority on different assets of the obligor.
[29] The investment has an unfunded commitment as of March 31, 2022. Refer to Note 11 - Commitments and Contingencies for further discussion.
[30] Investment is on non-accrual status as of December 31, 2022, meaning the Company has ceased to recognize interest income on the investment.
[31] Investment is on non-accrual status as of March 31, 2022, meaning the Company has ceased to recognize interest income on the investment.
[32] Income producing through dividends or distributions.
[33] Income producing through dividends or distributions.