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Investments - MRCC Senior Loan Fund I, LLC (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
representative
investment
Mar. 31, 2023
USD ($)
Dec. 31, 2023
USD ($)
investment
Jun. 09, 2023
USD ($)
Dec. 31, 2022
USD ($)
Investments          
Number of representatives | representative 1        
Investments, at fair value $ 500,889 [1],[2]   $ 488,386 [3],[4]    
Dividend income 1,012 $ 1,095      
Unfunded commitments 37,348   37,182    
Investment, Identifier [Axis]: APCO Worldwide, Inc., Equity Securities, Class A voting common stock          
Investments          
Investments, at fair value 988 [2]   869 [4]    
Investment, Identifier [Axis]: ASG II, LLC (Delayed Draw), Unitranche Secured Loans          
Investments          
Investments, at fair value 266 [2],[5],[6]   171 [4],[7],[8]    
Secured loans and investments $ 285 [5],[6]   $ 285 [7],[8]    
Weighted average current interest rate on secured loans 11.71% [5],[6]   11.78% [7],[8]    
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans          
Investments          
Investments, at fair value $ 1,895 [2]   $ 1,900 [4]    
Secured loans and investments $ 1,900   $ 1,900    
Weighted average current interest rate on secured loans 11.71%   11.78%    
Investment, Identifier [Axis]: AdTheorent Holding Company, Inc, Equity Securities, Common stock          
Investments          
Investments, at fair value $ 569 [2],[9],[10]   $ 257 [4],[11],[12]    
Investment, Identifier [Axis]: Amelia Holding II, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     510    
Secured loans and investments [7],[8]     668    
Investment, Identifier [Axis]: Amelia Holding II, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     27    
Secured loans and investments [7]     133    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Equity Securities, Warrant          
Investments          
Investments, at fair value 28 [2]   29 [4]    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans          
Investments          
Investments, at fair value [4]     2,028    
Secured loans and investments     2,021    
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value [2] 2,036        
Secured loans and investments 2,026        
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value [2] 672        
Secured loans and investments 669        
Investment, Identifier [Axis]: Amelia Holding II, LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] 0        
Secured loans and investments [6] 133        
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value 1,423 [2],[5],[6]   1,430 [4],[7],[8]    
Secured loans and investments 1,377 [5],[6]   1,377 [7],[8]    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 124 [2],[6]   124 [4],[7]    
Secured loans and investments 500 [6]   500 [7]    
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Warrants          
Investments          
Investments, at fair value 46 [2]   49 [4]    
Investment, Identifier [Axis]: American Community Homes, Inc. (Revolver)          
Investments          
Investments, at fair value 0 0 0   $ 0
Investment, Identifier [Axis]: American Community Homes, Inc. 1          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 2          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 3          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 4          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 5          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 6          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc. 7          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc., Common stock          
Investments          
Investments, at fair value 0 0 0   0
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc., Equity Securities, Common stock          
Investments          
Investments, at fair value 0 [2]   0 [4]    
Investment, Identifier [Axis]: American Community Homes, Inc., Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans (Revolver)          
Investments          
Investments, at fair value [2],[6] 0        
Secured loans and investments [6] 2,500        
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 8,085 [2] 8,640 8,110 [4]   8,953
Secured loans and investments 12,890   12,648    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value 3,978 [2] 4,156 3,990 [4]   4,258
Secured loans and investments 6,343   6,223    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 3          
Investments          
Investments, at fair value 490 [2] 524 491 [4]   543
Secured loans and investments 781   767    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 4          
Investments          
Investments, at fair value 1,802 [2] 1,926 1,808 [4]   1,996
Secured loans and investments 2,873   2,819    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 5          
Investments          
Investments, at fair value 3,336 [2] 3,566 3,347 [4]   3,694
Secured loans and investments 5,319   5,219    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 6          
Investments          
Investments, at fair value 16 [2] 17 16 [4]   17
Secured loans and investments 25   25    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans 7          
Investments          
Investments, at fair value 77 [2] 82 77 [4]   85
Secured loans and investments 122   120    
Investment, Identifier [Axis]: American Community Homes, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [4],[7]     0    
Secured loans and investments [7]     2,500    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 1          
Investments          
Investments, at fair value 8,085   8,110    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 2          
Investments          
Investments, at fair value 3,978   3,990    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 3          
Investments          
Investments, at fair value 490   491    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 4          
Investments          
Investments, at fair value 1,802   1,808    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 5          
Investments          
Investments, at fair value 3,336   3,347    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 6          
Investments          
Investments, at fair value 16   16    
Investment, Identifier [Axis]: American Community Homes, Inc.., Senior Secured Loans 7          
Investments          
Investments, at fair value 77   77    
Investment, Identifier [Axis]: Aras Corporation (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 150 [2]   130 [4],[7]    
Secured loans and investments $ 150   $ 150 [7]    
Weighted average current interest rate on secured loans 11.98%   14.00% [7]    
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans          
Investments          
Investments, at fair value $ 2,251 [2]   $ 2,250 [4]    
Secured loans and investments 2,252   2,233    
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities, Class A units          
Investments          
Investments, at fair value [2] 495        
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities, Class B units          
Investments          
Investments, at fair value [2] 922        
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] 331        
Secured loans and investments [5],[6] 551        
Investment, Identifier [Axis]: Arcstor Midco, LLC, Junior Secured Loans 1          
Investments          
Investments, at fair value 164 [2]   2,185 [4]    
Secured loans and investments 161   4,572    
Investment, Identifier [Axis]: Arcstor Midco, LLC, Junior Secured Loans 2          
Investments          
Investments, at fair value 167 [2]   155 [4]    
Secured loans and investments 165   155    
Investment, Identifier [Axis]: Arcstor Midco, LLC, Junior Secured Loans 3          
Investments          
Investments, at fair value [2] 0        
Secured loans and investments 370        
Investment, Identifier [Axis]: Arcstor Midco, LLC, Senior Secured Loans          
Investments          
Investments, at fair value [4]     155    
Secured loans and investments     155    
Investment, Identifier [Axis]: Ascent Midco, LLC          
Investments          
Investments, at fair value   6,131     6,217
Dividend income 0 0      
Investment, Identifier [Axis]: Ascent Midco, LLC (Class A units)          
Investments          
Investments, at fair value 1,652   1,932    
Investment, Identifier [Axis]: Ascent Midco, LLC (Revolver)          
Investments          
Investments, at fair value   0     0
Investment, Identifier [Axis]: Ascent Midco, LLC, Class A units          
Investments          
Investments, at fair value   1,895     1,969
Dividend income 53 49      
Investment, Identifier [Axis]: Ascent Midco, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value 1,652 [2],[13]   1,932 [4],[14]    
Investment, Identifier [Axis]: Ascent Midco, LLC, Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 315 [2]   213 [4],[7]    
Secured loans and investments $ 320   $ 320 [7]    
Weighted average current interest rate on secured loans 12.19%   12.22% [7]    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 352 [2],[13]   $ 362 [4],[14]    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 1,863 [2]   1,870 [4]    
Secured loans and investments $ 1,895   $ 1,900    
Weighted average current interest rate on secured loans 12.19%   12.22%    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 454 [2]   $ 456 [4]    
Secured loans and investments $ 462   $ 463    
Weighted average current interest rate on secured loans 12.19%   12.22%    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 268 [2]   $ 269 [4]    
Secured loans and investments $ 273   $ 273    
Weighted average current interest rate on secured loans 12.19%   12.22%    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans 4          
Investments          
Investments, at fair value $ 773 [2]   $ 775 [4]    
Secured loans and investments $ 786   $ 788    
Weighted average current interest rate on secured loans 12.19%   12.22%    
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans 5          
Investments          
Investments, at fair value $ 390 [2]   $ 392 [4]    
Secured loans and investments $ 397   $ 398    
Weighted average current interest rate on secured loans 12.19%   12.22%    
Investment, Identifier [Axis]: Avalara, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 400 [6]   $ 400 [7]    
Weighted average current interest rate on secured loans 12.56% [6]   12.60% [7]    
Investment, Identifier [Axis]: Avalara, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 4,038 [2]   $ 4,040 [4]    
Secured loans and investments $ 4,000   $ 4,000    
Weighted average current interest rate on secured loans 12.56%   12.60%    
Investment, Identifier [Axis]: BLST Operating Company, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 419 [2],[13]   $ 420 [4],[14]    
Investment, Identifier [Axis]: BLST Operating Company, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 627 [2]   620 [4]    
Secured loans and investments 682   660    
Investment, Identifier [Axis]: Binah Capital Group, Inc. (fka PKS Holdings, LLC), Equity Securities, Common Stock          
Investments          
Investments, at fair value [2],[10],[15] 451        
Investment, Identifier [Axis]: Bluesight, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments $ 174 [6]   $ 174 [7]    
Weighted average current interest rate on secured loans 12.55% [6]   12.61% [7]    
Investment, Identifier [Axis]: Bluesight, Inc. , Equity Securities, Class B common units          
Investments          
Investments, at fair value $ 0 [2]   $ 0 [4]    
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities, Class A preferred units          
Investments          
Investments, at fair value 19 [2]   19 [4]    
Investment, Identifier [Axis]: Bluesight, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 1,998 [2]   1,996 [4]    
Secured loans and investments $ 2,000   $ 2,000    
Weighted average current interest rate on secured loans 12.55%   12.61%    
Investment, Identifier [Axis]: Bonterra, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 548 [2],[6]   $ 315 [4],[7]    
Secured loans and investments $ 1,069 [6]   $ 1,069 [7]    
Weighted average current interest rate on secured loans 12.58% [6]   12.60% [7]    
Investment, Identifier [Axis]: Bonterra, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 13,252 [2]   $ 13,185 [4]    
Secured loans and investments $ 13,437   $ 13,437    
Weighted average current interest rate on secured loans 12.55%   12.60%    
Investment, Identifier [Axis]: Bonterra, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 2,052 [2]   $ 1,975 [4]    
Secured loans and investments 2,034   1,968    
Investment, Identifier [Axis]: Born To Run, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value 0 [2]   0 [4]    
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 1,752 [2]   2,565 [4]    
Secured loans and investments $ 3,430   $ 3,430    
Weighted average current interest rate on secured loans 11.57% [16]   11.64%    
Investment, Identifier [Axis]: Born To Run, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 239 [2]   $ 349 [4]    
Secured loans and investments $ 467   $ 467    
Weighted average current interest rate on secured loans 11.57% [16]   11.64%    
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp., Senior Secured Loans          
Investments          
Investments, at fair value $ 1,856 [2]   $ 1,861 [4]    
Secured loans and investments $ 1,856   $ 1,861    
Weighted average current interest rate on secured loans 11.98%   12.04%    
Investment, Identifier [Axis]: Burroughs, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 1,215 [2]   $ 1,215 [4]    
Secured loans and investments 1,215   $ 1,215    
Weighted average current interest rate on secured loans     12.94%    
Investment, Identifier [Axis]: Burroughs, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 4,826 [2]   $ 4,901 [4]    
Secured loans and investments 4,826   $ 4,901    
Weighted average current interest rate on secured loans     12.94%    
Investment, Identifier [Axis]: C Parent Holdings, LLC.          
Investments          
Investments, at fair value   146     146
Investment, Identifier [Axis]: C Parent Holdings, LLC., Common stock          
Investments          
Investments, at fair value   0     0
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 3,826 [2]   $ 3,802 [4]    
Secured loans and investments $ 3,850   $ 3,875    
Weighted average current interest rate on secured loans 12.56%   12.61%    
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,098 [2]   $ 1,091 [4]    
Secured loans and investments $ 1,105   $ 1,112    
Weighted average current interest rate on secured loans 12.56%   12.61%    
Investment, Identifier [Axis]: Calabrio, Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 0    
Secured loans and investments [7],[8]     $ 499    
Weighted average current interest rate on secured loans [7],[8]     12.48%    
Investment, Identifier [Axis]: Calabrio, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 234 [4],[7]    
Secured loans and investments $ 409 [6]   $ 409 [7]    
Weighted average current interest rate on secured loans 12.45% [6]   12.48% [7]    
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans          
Investments          
Investments, at fair value [4]     $ 3,421    
Secured loans and investments     $ 3,400    
Weighted average current interest rate on secured loans     12.48%    
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value [2] $ 3,400        
Secured loans and investments $ 3,400        
Weighted average current interest rate on secured loans 12.45%        
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value [2] $ 503        
Secured loans and investments $ 499        
Weighted average current interest rate on secured loans 12.45%        
Investment, Identifier [Axis]: Caravel Autism Health, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 244 [2],[6]   $ 244 [4],[7]    
Secured loans and investments $ 1,269 [6]   $ 1,269 [7]    
Weighted average current interest rate on secured loans 11.09% [6]   11.16% [7]    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 4,999 [2]   $ 4,969 [4]    
Secured loans and investments $ 4,999   $ 5,012    
Weighted average current interest rate on secured loans 11.09%   11.16%    
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,389 [2]   $ 1,380 [4]    
Secured loans and investments $ 1,389   $ 1,392    
Weighted average current interest rate on secured loans 11.09%   11.16%    
Investment, Identifier [Axis]: Cassavant Holdings, LLC, Unitranche Secured Loans          
Investments          
Investments, at fair value [4]     $ 7,876    
Secured loans and investments     $ 7,876    
Weighted average current interest rate on secured loans     12.96%    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value $ 478 [2],[5],[6],[10]   $ 322 [4],[7],[8],[11]    
Secured loans and investments $ 837 [5],[6],[10]   $ 837 [7],[8],[11]    
Weighted average current interest rate on secured loans 13.57% [5],[6],[10]   13.61% [7],[8],[11]    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 656 [2],[6],[10]   $ 546 [4],[7],[11]    
Secured loans and investments $ 1,395 [6],[10]   $ 1,395 [7],[11]    
Weighted average current interest rate on secured loans 13.58% [6],[10]   13.60% [7],[11]    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans          
Investments          
Investments, at fair value [4],[11]     $ 2,812    
Secured loans and investments [11]     $ 2,784    
Weighted average current interest rate on secured loans [11]     13.60%    
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value [2],[10] $ 2,805        
Secured loans and investments [10] $ 2,784        
Weighted average current interest rate on secured loans [10] 13.57%        
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value [2],[10] $ 287        
Secured loans and investments [10] $ 285        
Weighted average current interest rate on secured loans [10] 13.57%        
Investment, Identifier [Axis]: Centaur (Palm Beach) Owner LLC and Panther National Golf Club LLC, Senior Secured Loans2          
Investments          
Investments, at fair value [4],[11]     $ 287    
Secured loans and investments [11]     $ 285    
Weighted average current interest rate on secured loans [11]     13.60%    
Investment, Identifier [Axis]: Chess.com, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 652 [6]   $ 652 [7]    
Weighted average current interest rate on secured loans 11.90% [6]   11.95% [7]    
Investment, Identifier [Axis]: Chess.com, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 75 [2],[13]   $ 75 [4],[14]    
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 5,865 [2]   5,873 [4]    
Secured loans and investments $ 5,880   $ 5,895    
Weighted average current interest rate on secured loans 11.90%   11.95%    
Investment, Identifier [Axis]: Crownpeak Technology, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 333 [2],[6]   $ 67 [4],[7]    
Secured loans and investments $ 500 [6]   $ 500 [7]    
Weighted average current interest rate on secured loans 12.07% [6]   12.69% [7]    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value $ 4,000 [2]   $ 4,000 [4]    
Secured loans and investments $ 4,000   $ 4,000    
Weighted average current interest rate on secured loans 12.06%   12.69%    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,275 [2]   $ 1,274 [4]    
Secured loans and investments $ 1,273   $ 1,273    
Weighted average current interest rate on secured loans 12.22%   12.97%    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 3          
Investments          
Investments, at fair value $ 60 [2]   $ 60 [4]    
Secured loans and investments $ 60   $ 60    
Weighted average current interest rate on secured loans 12.06%   12.69%    
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 4          
Investments          
Investments, at fair value $ 3,338 [2]   $ 3,334 [4]    
Secured loans and investments $ 3,333   $ 3,333    
Weighted average current interest rate on secured loans 11.90%   12.69%    
Investment, Identifier [Axis]: Destination Media, Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 62    
Secured loans and investments [7],[8]     $ 500    
Weighted average current interest rate on secured loans [7],[8]     12.35%    
Investment, Identifier [Axis]: Destination Media, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 21    
Secured loans and investments [7]     $ 103    
Weighted average current interest rate on secured loans [7]     12.35%    
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 1,012 [2]   $ 1,010 [4]    
Secured loans and investments $ 993   $ 995    
Weighted average current interest rate on secured loans 12.43%   12.43%    
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 62        
Secured loans and investments [5],[6] $ 500        
Weighted average current interest rate on secured loans [5],[6] 12.45%        
Investment, Identifier [Axis]: Destination Media, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 21        
Secured loans and investments [6] $ 103        
Weighted average current interest rate on secured loans [6] 12.45%        
Investment, Identifier [Axis]: Dorado Acquisition, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 596 [6]   $ 596 [7]    
Weighted average current interest rate on secured loans 12.18% [6]   12.19% [7]    
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities, Class A-1 units          
Investments          
Investments, at fair value $ 209 [2]   $ 209 [4]    
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities, Class A-2 units          
Investments          
Investments, at fair value 98 [2]   32 [4]    
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 4,756 [2]   4,743 [4]    
Secured loans and investments $ 4,875   $ 4,888    
Weighted average current interest rate on secured loans 12.18%   12.19%    
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 3,942 [2]   $ 3,932 [4]    
Secured loans and investments $ 4,041   $ 4,051    
Weighted average current interest rate on secured loans 12.23%   12.29%    
Investment, Identifier [Axis]: Drawbridge Partners, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 496    
Secured loans and investments [7],[8]     $ 874    
Weighted average current interest rate on secured loans [7],[8]     12.10%    
Investment, Identifier [Axis]: Drawbridge Partners, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 522    
Weighted average current interest rate on secured loans [7]     12.10%    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Equity Securities, Class A-1 units          
Investments          
Investments, at fair value $ 154 [2]   $ 147 [4]    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 3,029 [2]   3,001 [4]    
Secured loans and investments $ 3,000   $ 3,000    
Weighted average current interest rate on secured loans 12.05%   12.10%    
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 522        
Weighted average current interest rate on secured loans [6] 12.05%        
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 501        
Secured loans and investments [5],[6] $ 874        
Weighted average current interest rate on secured loans [5],[6] 12.05%        
Investment, Identifier [Axis]: Education Corporation of America - Series G Preferred Stock          
Investments          
Investments, at fair value $ 0 [2]   $ 0 [4]    
Investment, Identifier [Axis]: Education Corporation of America, Junior Secured Loans          
Investments          
Investments, at fair value 2,246 [2]   2,174 [4]    
Secured loans and investments 833   833    
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Preferred Stock          
Investments          
Investments, at fair value [2] 196        
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value [2] 2,940        
Secured loans and investments $ 3,000        
Weighted average current interest rate on secured loans 11.08%        
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value [2] $ 1,713        
Secured loans and investments $ 1,731        
Weighted average current interest rate on secured loans 11.08%        
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 0        
Secured loans and investments [5],[6] $ 865        
Weighted average current interest rate on secured loans [5],[6] 11.08%        
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 64        
Secured loans and investments [6] $ 652        
Weighted average current interest rate on secured loans [6] 11.08%        
Investment, Identifier [Axis]: Equine Network, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 140 [2],[13]   110 [4],[14]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 209 [2],[6]   209 [4],[7]    
Secured loans and investments $ 379 [6]   $ 379 [7]    
Weighted average current interest rate on secured loans 12.09% [6]   12.16% [7]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Class A preferred units          
Investments          
Investments, at fair value $ 28 [2],[13]   $ 32 [4],[14]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class A common units          
Investments          
Investments, at fair value 0 [2],[13]   0 [4],[14]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class B common units          
Investments          
Investments, at fair value 0 [2],[13]   26 [4],[14]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class B preferred units          
Investments          
Investments, at fair value 0 [2],[13]   0 [4],[14]    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 7,067 [2]   7,067 [4]    
Secured loans and investments $ 7,067   $ 7,067    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,509 [2]   $ 1,513 [4]    
Secured loans and investments $ 1,509   $ 1,513    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Familia Dental Group Holdings, LLC (Class A units)          
Investments          
Investments, at fair value $ 2,363 2,429 $ 2,226   2,625
Investment, Identifier [Axis]: Familia Dental Group Holdings, LLC, Class A units          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Familia Dental Group Holdings, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value 2,363 [2],[13]   2,226 [4],[14]    
Investment, Identifier [Axis]: Florida East Coast Industries, LLC, Junior Secured Loans          
Investments          
Investments, at fair value 785 [2],[10]   879 [4],[11]    
Secured loans and investments 785 [10]   879 [11]    
Investment, Identifier [Axis]: Forest Buyer, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [2],[5],[6] 0        
Secured loans and investments [5],[6] $ 1,250        
Weighted average current interest rate on secured loans [5],[6] 11.07%        
Investment, Identifier [Axis]: Forest Buyer, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 750        
Weighted average current interest rate on secured loans [6] 11.07%        
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value [2],[13] $ 300        
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities, Class B units          
Investments          
Investments, at fair value [2],[13] 0        
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans          
Investments          
Investments, at fair value [2] 3,900        
Secured loans and investments $ 4,000        
Weighted average current interest rate on secured loans 11.07%        
Investment, Identifier [Axis]: Forman Mills, Inc., Junior Secured Loans          
Investments          
Investments, at fair value $ 840 [2]   955 [4]    
Secured loans and investments 1,308   1,308    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 2,544 [2]   2,528 [4]    
Secured loans and investments $ 2,522   $ 2,528    
Weighted average current interest rate on secured loans 11.71%   11.71%    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 707 [2]   $ 702 [4]    
Secured loans and investments $ 701   $ 702    
Weighted average current interest rate on secured loans 11.71%   11.71%    
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 2,136 [2]   $ 2,125 [4]    
Secured loans and investments $ 2,102   $ 2,107    
Weighted average current interest rate on secured loans 11.96%   11.96%    
Investment, Identifier [Axis]: HFZ Capital Group LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 17,500 [2],[10],[17]   $ 17,233 [4],[11],[18]    
Secured loans and investments 13,242 [10],[17]   13,242 [11],[18]    
Investment, Identifier [Axis]: HFZ Capital Group LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value [2],[10],[17] 6,288        
Secured loans and investments [10],[17] 4,758        
Investment, Identifier [Axis]: HFZ Capital Group LLC, Senior Secured Loans) 2          
Investments          
Investments, at fair value [4],[11],[18]     6,191    
Secured loans and investments [11],[18]     4,758    
Investment, Identifier [Axis]: HFZ Capital Group, LLC 1          
Investments          
Investments, at fair value 17,500 16,423 17,233   16,159
Dividend income 0 0      
Investment, Identifier [Axis]: HFZ Capital Group, LLC 2          
Investments          
Investments, at fair value 6,288 5,901 6,191   5,805
Dividend income 0 0      
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 549 [2],[6]   548 [4],[7]    
Secured loans and investments $ 817 [6]   $ 817 [7]    
Weighted average current interest rate on secured loans 11.18% [6]   12.21% [7]    
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 9,774 [2]   $ 9,769 [4]    
Secured loans and investments $ 9,774   $ 9,799    
Weighted average current interest rate on secured loans 11.18%   12.21%    
Investment, Identifier [Axis]: Hastings Manufacturing Company (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 691 [6]   $ 691 [7]    
Weighted average current interest rate on secured loans 12.93% [6]   12.96% [7]    
Investment, Identifier [Axis]: Hastings Manufacturing Company, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 1,843 [2]   $ 1,850 [4]    
Secured loans and investments $ 1,843   $ 1,850    
Weighted average current interest rate on secured loans 12.93%   12.96%    
Investment, Identifier [Axis]: Hastings Manufacturing Company, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 662 [2]   $ 664 [4]    
Secured loans and investments $ 662   $ 664    
Weighted average current interest rate on secured loans 12.93%   12.96%    
Investment, Identifier [Axis]: Hastings Manufacturing Company, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 2,075 [2]   $ 2,080 [4]    
Secured loans and investments $ 2,034   $ 2,039    
Weighted average current interest rate on secured loans 12.93%   12.96%    
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securities, Common stock          
Investments          
Investments, at fair value $ 306 [2],[13],[19]   $ 306 [4],[14],[20]    
Investment, Identifier [Axis]: INH Buyer, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 2,309 [2]   2,936 [4]    
Secured loans and investments 3,026   3,026    
Investment, Identifier [Axis]: InMobi Pte, Ltd, Equity Securities, Warrant          
Investments          
Investments, at fair value 1,763 [2],[10],[21]   1,695 [4],[11],[22]    
Investment, Identifier [Axis]: Independence Buyer, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments $ 1,423 [6]   $ 1,423 [7]    
Weighted average current interest rate on secured loans 11.21% [6]   11.28% [7]    
Investment, Identifier [Axis]: Independence Buyer, Inc., Equity Securities, Class A units          
Investments          
Investments, at fair value $ 49 [2]   $ 56 [4]    
Investment, Identifier [Axis]: Independence Buyer, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 5,251 [2]   5,410 [4]    
Secured loans and investments $ 5,345   $ 5,499    
Weighted average current interest rate on secured loans 11.21%   11.28%    
Investment, Identifier [Axis]: J2 BWA Funding LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 1,623 [2],[6],[10]   $ 1,578 [4],[7],[11]    
Secured loans and investments $ 2,750 [6],[10]   $ 2,750 [7],[11]    
Weighted average current interest rate on secured loans 10.00% [6],[10]   10.00% [7],[11]    
Investment, Identifier [Axis]: J2 BWA Funding LLC, Equity Securities, Profit sharing          
Investments          
Investments, at fair value $ 38 [2],[10],[13]   $ 40 [4],[11],[14]    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC) (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value 989 [2],[5],[6]   989 [4],[7],[8]    
Secured loans and investments $ 1,702 [5],[6]   $ 1,702 [7],[8]    
Weighted average current interest rate on secured loans 12.31% [5],[6]   12.14% [7],[8]    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC) (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 461 [2],[6]   $ 352 [4],[7]    
Secured loans and investments $ 813 [6]   $ 813 [7]    
Weighted average current interest rate on secured loans 12.33% [6]   12.13% [7]    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC), Equity Securities          
Investments          
Percentage of equity interest 0.10%   0.10%    
Investments, at fair value $ 329 [2]   $ 422 [4]    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC), Senior Secured Loans          
Investments          
Investments, at fair value [4]     4,975    
Secured loans and investments     $ 4,975    
Weighted average current interest rate on secured loans     12.13%    
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC), Senior Secured Loans 1          
Investments          
Investments, at fair value [2] 4,963        
Secured loans and investments $ 4,963        
Weighted average current interest rate on secured loans 12.31%        
Investment, Identifier [Axis]: KL Moon Acquisition, LLC (fka Spectrum Science Communications, LLC), Senior Secured Loans 2          
Investments          
Investments, at fair value [2] $ 2,128        
Secured loans and investments $ 2,128        
Weighted average current interest rate on secured loans 12.29%        
Investment, Identifier [Axis]: Kar Wash Holdings, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 2,230    
Secured loans and investments [7],[8]     $ 2,649    
Weighted average current interest rate on secured loans [7],[8]     12.16%    
Investment, Identifier [Axis]: Kar Wash Holdings, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 571 [6]   $ 571 [7]    
Weighted average current interest rate on secured loans 11.59% [6]   12.16% [7]    
Investment, Identifier [Axis]: Kar Wash Holdings, LLC 1, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 102 [2]   $ 75 [4]    
Investment, Identifier [Axis]: Kar Wash Holdings, LLC, Equity Securities, Series A Preferred Stock          
Investments          
Investments, at fair value 11 [2]   11 [4]    
Investment, Identifier [Axis]: Kar Wash Holdings, LLC, Senior Secured Loans          
Investments          
Investments, at fair value [2] 2,644        
Secured loans and investments $ 2,644        
Weighted average current interest rate on secured loans 11.59%        
Investment, Identifier [Axis]: Kar Wash Holdings, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 1,572 [2]   1,576 [4]    
Secured loans and investments $ 1,572   $ 1,576    
Weighted average current interest rate on secured loans 11.59%   12.16%    
Investment, Identifier [Axis]: Kar Wash Holdings, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,126 [2]   $ 1,129 [4]    
Secured loans and investments $ 1,126   $ 1,129    
Weighted average current interest rate on secured loans 11.59%   12.16%    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value $ 130 [2],[6]   $ 130 [4],[7],[8]    
Secured loans and investments $ 600 [6]   $ 600 [7],[8]    
Weighted average current interest rate on secured loans 11.98% [6]   12.04% [7],[8]    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 240 [6]   $ 240 [7]    
Weighted average current interest rate on secured loans 11.98% [6]   12.04% [7]    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 589 [2]   $ 588 [4]    
Secured loans and investments $ 594   $ 596    
Weighted average current interest rate on secured loans 11.98%   12.04%    
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 189 [2]   $ 189 [4]    
Secured loans and investments $ 191   $ 191    
Weighted average current interest rate on secured loans 11.98%   12.04%    
Investment, Identifier [Axis]: LVF Holdings, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 238 [6]   $ 238 [7]    
Weighted average current interest rate on secured loans 11.21% [6]   11.25% [7]    
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value $ 1,463 [2]   $ 1,466 [4]    
Secured loans and investments $ 1,463   $ 1,466    
Weighted average current interest rate on secured loans 11.21%   11.25%    
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,400 [2]   $ 1,403 [4]    
Secured loans and investments $ 1,400   $ 1,403    
Weighted average current interest rate on secured loans 11.21%   11.25%    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 871 [2],[6]   $ 541 [4],[7]    
Secured loans and investments $ 1,667 [6]   $ 1,667 [7]    
Weighted average current interest rate on secured loans 11.25% [6]   11.29% [7]    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities, Class A units          
Investments          
Investments, at fair value $ 64 [2],[13]   $ 57 [4],[14]    
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 6,702 [2]   6,682 [4]    
Secured loans and investments $ 6,843   $ 6,860    
Weighted average current interest rate on secured loans 11.18%   11.16%    
Investment, Identifier [Axis]: Liftforward SPV II, LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 237 [2],[10]   $ 233 [4],[11]    
Secured loans and investments 263 [10]   253 [11]    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC          
Investments          
Investments, at fair value   8,824     8,421
Dividend income 0 0      
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC (Delayed Draw)          
Investments          
Investments, at fair value   2,634     1,000
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC 1          
Investments          
Investments, at fair value 10,771   10,237    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC 2          
Investments          
Investments, at fair value 3,210   3,051    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Delayed Draw          
Investments          
Dividend income $ 0 $ 0      
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Equity Interest          
Investments          
Percentage of equity interest 15.90%        
Investments, at fair value $ 842   $ 1,045    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Equity Securities          
Investments          
Percentage of equity interest 15.90% [10],[13],[17]   15.90% [11],[14],[18]    
Investments, at fair value $ 842 [2],[10],[13],[17]   $ 1,045 [4],[11],[14],[18]    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Equity interest          
Investments          
Percentage of equity interest   15.90%      
Investments, at fair value   $ 1,678     1,291
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, LLC interest          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 10,771 [2],[10],[17]   10,237 [4],[11],[18]    
Secured loans and investments 10,771 [10],[17]   10,237 [11],[18]    
Investment, Identifier [Axis]: MC Asset Management (Corporate), LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value 3,210 [2],[10],[17]   3,051 [4],[11],[18]    
Secured loans and investments 3,210 [10],[17]   3,051 [11],[18]    
Investment, Identifier [Axis]: MEI Buyer LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[5],[6]   0 [4],[7],[8]    
Secured loans and investments $ 317 [5],[6]   $ 317 [7],[8]    
Weighted average current interest rate on secured loans 11.83% [5],[6]   11.86% [7],[8]    
Investment, Identifier [Axis]: MEI Buyer LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 7 [4],[7]    
Secured loans and investments $ 410 [6]   $ 410 [7]    
Weighted average current interest rate on secured loans 11.83% [6]   11.84% [7]    
Investment, Identifier [Axis]: MEI Buyer LLC, Equity Securities, Common stock          
Investments          
Investments, at fair value $ 200 [2]   $ 158 [4]    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans          
Investments          
Investments, at fair value [4]     2,035    
Secured loans and investments     $ 1,995    
Weighted average current interest rate on secured loans     11.86%    
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value [2] 2,010        
Secured loans and investments $ 1,990        
Weighted average current interest rate on secured loans 11.83%        
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value [2] $ 1,114        
Secured loans and investments $ 1,114        
Weighted average current interest rate on secured loans 10.58%        
Investment, Identifier [Axis]: MRCC Senior Loan Fund I, LLC          
Investments          
Investments, at fair value $ 32,990 35,763 $ 33,122   35,509
Dividend income $ 900 900      
Investment, Identifier [Axis]: MRCC Senior Loan Fund I, LLC, Equity Securities          
Investments          
Percentage of equity interest 50.00% [10]   50.00% [11]    
Investments, at fair value $ 32,990 [2],[10]   $ 33,122 [4],[11]    
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Common units          
Investments          
Investments, at fair value 0 [2],[10],[13]   0 [4],[11],[14]    
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Warrant          
Investments          
Investments, at fair value 0 [2],[10],[13]   0 [4],[11],[14]    
Investment, Identifier [Axis]: MV Receivables II, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 7,477 [2],[10]   7,695 [4],[11]    
Secured loans and investments $ 8,100 [10]   $ 8,100 [11]    
Weighted average current interest rate on secured loans 15.08% [10]   15.09% [11]    
Investment, Identifier [Axis]: Medallia, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 2,165 [2]   $ 2,141 [4]    
Secured loans and investments 2,161   2,140    
Investment, Identifier [Axis]: Mindbody, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     0    
Secured loans and investments [7]     $ 667    
Weighted average current interest rate on secured loans [7]     12.53%    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 6,536 [2]   $ 6,536 [4]    
Secured loans and investments $ 6,536   $ 6,536    
Weighted average current interest rate on secured loans 12.46%   12.53%    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 207 [2]   $ 474 [4]    
Secured loans and investments $ 207   $ 474    
Weighted average current interest rate on secured loans 12.46%   12.53%    
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 667        
Weighted average current interest rate on secured loans [6] 12.46%        
Investment, Identifier [Axis]: Mnine Holdings, Inc.          
Investments          
Investments, at fair value   5,561     5,492
Investment, Identifier [Axis]: Mnine Holdings, Inc. (Class B units)          
Investments          
Investments, at fair value $ 0 0 $ 0   0
Investment, Identifier [Axis]: Mnine Holdings, Inc. (Revolver)          
Investments          
Investments, at fair value 0 511 658   214
Investment, Identifier [Axis]: Mnine Holdings, Inc. 1          
Investments          
Investments, at fair value 54   55    
Dividend income 0 0      
Investment, Identifier [Axis]: Mnine Holdings, Inc. 2          
Investments          
Investments, at fair value 6,119   6,187    
Dividend income 0 0      
Investment, Identifier [Axis]: Mnine Holdings, Inc., Class B units          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Mnine Holdings, Inc., Equity Securities, Class B units          
Investments          
Investments, at fair value 0 [2]   0 [4]    
Investment, Identifier [Axis]: Mnine Holdings, Inc., Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Mnine Holdings, Inc., Revolver, Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   658 [4],[7]    
Secured loans and investments $ 747 [6]   $ 747 [7]    
Weighted average current interest rate on secured loans 12.57% [6]   12.61% [7]    
Investment, Identifier [Axis]: Mnine Holdings, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value $ 6,119 [2]   $ 6,187 [4]    
Secured loans and investments 6,346   6,266    
Investment, Identifier [Axis]: Mnine Holdings, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value 54 [2]   55 [4]    
Secured loans and investments 56   55    
Investment, Identifier [Axis]: MoneyLion, Inc., Junior Secured Loans          
Investments          
Investments, at fair value 4,875 [2],[10]   4,918 [4],[11]    
Secured loans and investments $ 4,875 [10]   $ 4,875 [11]    
Weighted average current interest rate on secured loans 14.82% [10]   14.86% [11]    
Investment, Identifier [Axis]: NECB Collections, LLC (Revolver)          
Investments          
Investments, at fair value $ 424 $ 382 $ 424   382
Investment, Identifier [Axis]: NECB Collections, LLC, Equity Securities          
Investments          
Percentage of equity interest 20.80% [13]   20.80% [14]    
Investments, at fair value $ 0 [2],[13]   $ 0 [4],[14]    
Investment, Identifier [Axis]: NECB Collections, LLC, LLC (Units)          
Investments          
Percentage of equity interest   20.80%      
Investments, at fair value   $ 0     0
Investment, Identifier [Axis]: NECB Collections, LLC, LLC units          
Investments          
Dividend income $ 0 0      
Investment, Identifier [Axis]: NECB Collections, LLC, LLC, Equity Interest          
Investments          
Percentage of equity interest 20.80%        
Investments, at fair value $ 0   0    
Investment, Identifier [Axis]: NECB Collections, LLC, Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: NECB Collections, LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value 424 [2],[6]   424 [4],[7]    
Secured loans and investments $ 1,356 [6]   $ 1,356 [7]    
Weighted average current interest rate on secured loans 16.94% [6],[16]   16.94% [7]    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 0    
Secured loans and investments [7],[8]     $ 778    
Weighted average current interest rate on secured loans [7],[8]     11.00%    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 438    
Weighted average current interest rate on secured loans [7]     11.00%    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Equity Securities, Common units          
Investments          
Investments, at fair value $ 260 [2]   $ 326 [4]    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans          
Investments          
Investments, at fair value 3,491 [2]   3,500 [4]    
Secured loans and investments $ 3,456   $ 3,465    
Weighted average current interest rate on secured loans 10.95%   11.00%    
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 0        
Secured loans and investments [5],[6] $ 778        
Weighted average current interest rate on secured loans [5],[6] 10.95%        
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 438        
Weighted average current interest rate on secured loans [6] 10.95%        
Investment, Identifier [Axis]: NationsBenefits, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 889    
Secured loans and investments [7]     $ 2,222    
Weighted average current interest rate on secured loans [7]     12.44%    
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Common units          
Investments          
Investments, at fair value $ 496 [2],[13]   $ 0 [4],[14]    
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Series B units          
Investments          
Investments, at fair value 1,527 [2],[13]   706 [4],[14]    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 3,949 [2]   3,951 [4]    
Secured loans and investments $ 3,910   $ 3,920    
Weighted average current interest rate on secured loans 12.43%   12.44%    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 4,707 [2]   $ 4,708 [4]    
Secured loans and investments $ 4,660   $ 4,672    
Weighted average current interest rate on secured loans 12.43%   12.44%    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 5,103 [2]   $ 5,104 [4]    
Secured loans and investments $ 5,052   $ 5,065    
Weighted average current interest rate on secured loans 12.43%   12.44%    
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 1,556        
Secured loans and investments [6] $ 2,222        
Weighted average current interest rate on secured loans [6] 12.43%        
Investment, Identifier [Axis]: Nearly Natural, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 2,607 [2]   $ 2,532 [4]    
Secured loans and investments 2,709   2,634    
Investment, Identifier [Axis]: Nearly Natural, Inc. 2, Equity Securities, Class AA units          
Investments          
Investments, at fair value 45 [2]   28 [4]    
Investment, Identifier [Axis]: Nearly Natural, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 6,377 [2]   6,270 [4]    
Secured loans and investments 6,626   6,523    
Investment, Identifier [Axis]: Nearly Natural, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value 1,654 [2]   1,625 [4]    
Secured loans and investments 1,718   1,691    
Investment, Identifier [Axis]: Nearly Natural, Inc., Senior Secured Loans 3          
Investments          
Investments, at fair value 3,009 [2]   2,957 [4]    
Secured loans and investments 3,126   3,076    
Investment, Identifier [Axis]: Nearly Natural, Inc., Senior Secured Loans 4          
Investments          
Investments, at fair value 1,801 [2]   1,770 [4]    
Secured loans and investments 1,871   1,841    
Investment, Identifier [Axis]: Nearly Natural, Inc.1, Equity Securities, Class A units          
Investments          
Investments, at fair value 0 [2]   0 [4]    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     353    
Secured loans and investments [7],[8]     $ 1,056    
Weighted average current interest rate on secured loans [7],[8]     11.76%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 103    
Secured loans and investments [7]     $ 416    
Weighted average current interest rate on secured loans [7]     12.00%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 2,419 [2]   $ 2,399 [4]    
Secured loans and investments $ 2,419   $ 2,425    
Weighted average current interest rate on secured loans 11.91%   11.95%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 2,559 [2]   $ 2,528 [4]    
Secured loans and investments $ 2,559   $ 2,566    
Weighted average current interest rate on secured loans 11.67%   11.73%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans 3          
Investments          
Investments, at fair value $ 701 [2]   $ 695 [4]    
Secured loans and investments $ 701   $ 703    
Weighted average current interest rate on secured loans 11.91%   11.95%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans 4          
Investments          
Investments, at fair value $ 1,416 [2]   $ 1,404 [4]    
Secured loans and investments $ 1,416   $ 1,419    
Weighted average current interest rate on secured loans 11.91%   11.95%    
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 357        
Secured loans and investments [5],[6] $ 1,055        
Weighted average current interest rate on secured loans [5],[6] 11.68%        
Investment, Identifier [Axis]: North Haven USHC Acquisition, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 187        
Secured loans and investments [6] $ 416        
Weighted average current interest rate on secured loans [6] 11.92%        
Investment, Identifier [Axis]: Onit, Inc., Unitranche Secured Loans          
Investments          
Investments, at fair value $ 1,680 [2]   $ 1,680 [4]    
Secured loans and investments $ 1,680   $ 1,680    
Weighted average current interest rate on secured loans 12.73%   12.97%    
Investment, Identifier [Axis]: PKS Holdings, LLC, Equity Securities, Preferred units 1          
Investments          
Investments, at fair value [4],[11]     $ 251    
Investment, Identifier [Axis]: PKS Holdings, LLC, Equity Securities, Preferred units 2          
Investments          
Investments, at fair value [4],[11]     39    
Investment, Identifier [Axis]: PKS Holdings, LLC, Equity Securities, Preferred units 3          
Investments          
Investments, at fair value [4],[11]     6    
Investment, Identifier [Axis]: PKS Holdings, LLC, Equity Securities, Preferred units 4          
Investments          
Investments, at fair value [4],[11]     39    
Investment, Identifier [Axis]: Panda Acquisition, LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 3,716 [2]   3,707 [4]    
Secured loans and investments $ 4,359   $ 4,388    
Weighted average current interest rate on secured loans 11.66%   11.70%    
Investment, Identifier [Axis]: Planful, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4]     $ 442    
Secured loans and investments     $ 442    
Weighted average current interest rate on secured loans     12.16%    
Investment, Identifier [Axis]: Planful, Inc., Equity Securities, Class A units          
Investments          
Investments, at fair value $ 992 [2]   $ 942 [4]    
Investment, Identifier [Axis]: Planful, Inc., Equity Securities, Class B units          
Investments          
Investments, at fair value 24 [2]   23 [4]    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 9,500 [2]   9,500 [4]    
Secured loans and investments $ 9,500   $ 9,500    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 530 [2]   $ 530 [4]    
Secured loans and investments $ 530   $ 530    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans 3          
Investments          
Investments, at fair value $ 1,326 [2]   $ 1,326 [4]    
Secured loans and investments $ 1,326   $ 1,326    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans 4          
Investments          
Investments, at fair value $ 884 [2]   $ 884 [4]    
Secured loans and investments $ 884   $ 884    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans 5          
Investments          
Investments, at fair value $ 707 [2]   $ 708 [4]    
Secured loans and investments $ 707   $ 707    
Weighted average current interest rate on secured loans 12.09%   12.16%    
Investment, Identifier [Axis]: Planful, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2] $ 119        
Secured loans and investments $ 1,105        
Weighted average current interest rate on secured loans 11.81%        
Investment, Identifier [Axis]: Prototek LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments 288 [6]   288 [7]    
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans          
Investments          
Investments, at fair value 2,241 [2]   2,380 [4]    
Secured loans and investments 2,481   2,482    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant 1          
Investments          
Investments, at fair value 252 [2]   257 [4]    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant 2          
Investments          
Investments, at fair value 177 [2]   180 [4]    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 854 [2]   857 [4]    
Secured loans and investments $ 849   $ 852    
Weighted average current interest rate on secured loans 12.44%   11.96%    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 938 [2]   $ 941 [4]    
Secured loans and investments $ 933   $ 935    
Weighted average current interest rate on secured loans 12.44%   11.96%    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 3,316 [2]   $ 3,326 [4]    
Secured loans and investments $ 3,316   $ 3,326    
Weighted average current interest rate on secured loans 12.44%   11.96%    
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans 4          
Investments          
Investments, at fair value $ 334 [2]   $ 335 [4]    
Secured loans and investments $ 334   $ 335    
Weighted average current interest rate on secured loans 12.44%   11.96%    
Investment, Identifier [Axis]: Recorded Future, Inc, Equity Securities Class A units          
Investments          
Investments, at fair value $ 268 [2],[23]   $ 261 [4],[24]    
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments 284 [6]   284 [7]    
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans          
Investments          
Investments, at fair value 2,787 [2]   2,776 [4]    
Secured loans and investments 2,808   2,811    
Investment, Identifier [Axis]: Relativity ODA LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments $ 180 [6]   180 [7]    
Weighted average current interest rate on secured loans [6] 11.93%        
Investment, Identifier [Axis]: Relativity ODA LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 2,107 [2]   2,105 [4]    
Secured loans and investments $ 2,107   2,107    
Weighted average current interest rate on secured loans 11.93%        
Investment, Identifier [Axis]: Relevate Health Group, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     84    
Secured loans and investments [7]     $ 316    
Weighted average current interest rate on secured loans [7]     11.43%    
Investment, Identifier [Axis]: Relevate Health Group, LLC , Equity Securities, Class B common units          
Investments          
Investments, at fair value $ 0 [2]   $ 0 [4]    
Investment, Identifier [Axis]: Relevate Health Group, LLC , Equity Securities, Preferred units          
Investments          
Investments, at fair value 17 [2]   19 [4]    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 1,440 [2]   1,445 [4]    
Secured loans and investments $ 1,455   $ 1,459    
Weighted average current interest rate on secured loans 11.68%   11.44%    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 644 [2]   $ 647 [4]    
Secured loans and investments $ 651   $ 653    
Weighted average current interest rate on secured loans 11.68%   11.44%    
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 84        
Secured loans and investments [6] $ 316        
Weighted average current interest rate on secured loans [6] 11.68%        
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Equity Securities, Series A preferred units          
Investments          
Investments, at fair value [2],[10],[13] $ 1,114        
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Warrants          
Investments          
Investments, at fair value [2],[10],[13] 0        
Investment, Identifier [Axis]: SFR Holdco, LLC (Junior secured loan)          
Investments          
Investments, at fair value $ 5,533 $ 5,850 $ 5,539   5,850
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Interest          
Investments          
Percentage of equity interest 24.40%        
Investments, at fair value $ 4,446   $ 4,372    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities          
Investments          
Percentage of equity interest 24.40% [10]   24.40% [11]    
Investments, at fair value $ 4,446 [2],[10]   $ 4,372 [4],[11]    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity interests          
Investments          
Percentage of equity interest   24.40%      
Investments, at fair value   $ 3,900     3,900
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans          
Investments          
Investments, at fair value 5,533 [2],[10]   5,539 [4],[11]    
Secured loans and investments $ 5,850 [10]   $ 5,850 [11]    
Weighted average current interest rate on secured loans 8.00% [10]   8.00% [11]    
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior secured loan          
Investments          
Dividend income $ 0 0      
Investment, Identifier [Axis]: SFR Holdco, LLC, LLC interest          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC (Revolver)          
Investments          
Investments, at fair value 3,323 4,743 $ 3,323   4,755
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC, Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC, Senior Secured Loans (Revolver)          
Investments          
Investments, at fair value [2],[6],[10] 3,323        
Secured loans and investments [6],[10] $ 4,875        
Weighted average current interest rate on secured loans [6],[10] 12.33%        
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [4],[7],[11]     3,323    
Secured loans and investments [7],[11]     $ 4,875    
Weighted average current interest rate on secured loans [7],[11]     12.34%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 1          
Investments          
Investments, at fair value $ 3,336 [2]   $ 3,341 [4]    
Secured loans and investments $ 3,336   $ 3,344    
Weighted average current interest rate on secured loans 11.43%   11.46%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 2,399 [2]   $ 2,403 [4]    
Secured loans and investments $ 2,399   $ 2,406    
Weighted average current interest rate on secured loans 11.43%   11.46%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 3          
Investments          
Investments, at fair value $ 7,800 [2]   $ 7,812 [4]    
Secured loans and investments $ 7,800   $ 7,820    
Weighted average current interest rate on secured loans 11.43%   11.46%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 4          
Investments          
Investments, at fair value $ 2,108 [2]   $ 2,111 [4]    
Secured loans and investments $ 2,108   $ 2,113    
Weighted average current interest rate on secured loans 11.43%   11.46%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 5          
Investments          
Investments, at fair value $ 1,516 [2]   $ 1,518 [4]    
Secured loans and investments $ 1,516   $ 1,520    
Weighted average current interest rate on secured loans 11.43%   11.46%    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 6          
Investments          
Investments, at fair value [2] $ 2,800        
Secured loans and investments $ 2,793        
Weighted average current interest rate on secured loans 11.43%        
Investment, Identifier [Axis]: Seran BioScience, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 333    
Secured loans and investments [7],[8]     $ 1,444    
Weighted average current interest rate on secured loans [7],[8]     11.66%    
Investment, Identifier [Axis]: Seran BioScience, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 444    
Weighted average current interest rate on secured loans [7]     11.64%    
Investment, Identifier [Axis]: Seran BioScience, LLC, Equity Securities, Common units          
Investments          
Investments, at fair value $ 832 [2],[13]   $ 755 [4],[14]    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 2,425 [2]   2,431 [4]    
Secured loans and investments $ 2,425   $ 2,431    
Weighted average current interest rate on secured loans 11.58%   11.64%    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 2,751 [2]   $ 2,757 [4]    
Secured loans and investments $ 2,751   $ 2,757    
Weighted average current interest rate on secured loans 11.54%   11.66%    
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value [2] $ 1,444        
Secured loans and investments $ 1,444        
Weighted average current interest rate on secured loans 11.49%        
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 444        
Weighted average current interest rate on secured loans [6] 11.58%        
Investment, Identifier [Axis]: Sparq Holdings, Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 0    
Secured loans and investments [7],[8]     $ 222    
Weighted average current interest rate on secured loans [7],[8]     11.43%    
Investment, Identifier [Axis]: Sparq Holdings, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 205    
Weighted average current interest rate on secured loans [7]     11.43%    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Equity Securities, Common stock          
Investments          
Investments, at fair value $ 317 [2]   $ 312 [4]    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 1,002 [2]   1,011 [4]    
Secured loans and investments $ 993   $ 995    
Weighted average current interest rate on secured loans 11.43%   11.43%    
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 56        
Secured loans and investments [5],[6] $ 222        
Weighted average current interest rate on secured loans [5],[6] 11.56%        
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 205        
Weighted average current interest rate on secured loans [6] 11.56%        
Investment, Identifier [Axis]: Spherix Global Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 122    
Weighted average current interest rate on secured loans [7]     11.71%    
Investment, Identifier [Axis]: Spherix Global Inc., Equity Securities, Class A units          
Investments          
Investments, at fair value $ 27 [2]   $ 34 [4]    
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans          
Investments          
Investments, at fair value 916 [2]   1,048 [4]    
Secured loans and investments $ 946   $ 1,081    
Weighted average current interest rate on secured loans 11.69%   11.71%    
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 122        
Weighted average current interest rate on secured loans [6] 11.69%        
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value $ 242 [2],[5],[6]   $ 241 [4],[7],[8]    
Secured loans and investments $ 2,398 [5],[6]   $ 2,398 [7],[8]    
Weighted average current interest rate on secured loans 11.18% [5],[6]   11.21% [7],[8]    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 519 [6]   $ 519 [7]    
Weighted average current interest rate on secured loans 11.18% [6]   11.21% [7]    
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 2,977 [2]   $ 2,963 [4]    
Secured loans and investments $ 2,955   $ 2,963    
Weighted average current interest rate on secured loans 11.18%   11.21%    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 222 [2],[6]   $ 190 [4],[7]    
Secured loans and investments $ 323 [6]   $ 323 [7]    
Weighted average current interest rate on secured loans 11.65% [6]   12.20% [7]    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 1,998 [2]   $ 1,993 [4]    
Secured loans and investments $ 2,000   $ 2,000    
Weighted average current interest rate on secured loans 11.65%   12.20%    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 335 [2]   $ 334 [4]    
Secured loans and investments $ 335   $ 335    
Weighted average current interest rate on secured loans 11.65%   12.20%    
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 256 [2]   $ 255 [4]    
Secured loans and investments $ 256   $ 256    
Weighted average current interest rate on secured loans 11.65%   12.20%    
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 1,994 [2]   $ 1,994 [4]    
Secured loans and investments $ 1,994   $ 1,999    
Weighted average current interest rate on secured loans 10.94%   10.97%    
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 2,434 [2]   $ 2,434 [4]    
Secured loans and investments $ 2,434   $ 2,441    
Weighted average current interest rate on secured loans 10.94%   10.97%    
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value $ 2,185 [2]   $ 2,185 [4]    
Secured loans and investments $ 2,185   $ 2,190    
Weighted average current interest rate on secured loans 10.94%   10.97%    
Investment, Identifier [Axis]: TJ Management HoldCo LLC, Equity Securities, Common stock          
Investments          
Investments, at fair value $ 3,324 [2],[13]   $ 3,229 [4],[14]    
Investment, Identifier [Axis]: TJ Management HoldCo LLC, Senior Secured Loans, Revolver          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments $ 477 [6]   $ 477 [7]    
Weighted average current interest rate on secured loans 10.94% [6]   10.94% [7]    
Investment, Identifier [Axis]: TJ Management HoldCo, LLC (Revolver)          
Investments          
Investments, at fair value $ 0 80 $ 0   80
Investment, Identifier [Axis]: TJ Management HoldCo, LLC, Common stock          
Investments          
Investments, at fair value   2,893     $ 2,766
Dividend income 0 0      
Investment, Identifier [Axis]: TJ Management HoldCo, LLC, Common stock)          
Investments          
Investments, at fair value 3,324   3,229    
Investment, Identifier [Axis]: TJ Management HoldCo, LLC, Revolver          
Investments          
Dividend income 0 0      
Investment, Identifier [Axis]: The Kyjen Company, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value 0 [2],[6]   0 [4],[7]    
Secured loans and investments 105 [6]   105 [7]    
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 982 [2]   978 [4]    
Secured loans and investments 988   988    
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value 1 [2]   1 [4]    
Secured loans and investments 1   1    
Investment, Identifier [Axis]: Thrasio, LLC, Junior Secured Loans 1          
Investments          
Investments, at fair value [2] 135        
Secured loans and investments 135        
Investment, Identifier [Axis]: Thrasio, LLC, Junior Secured Loans 2          
Investments          
Investments, at fair value [2] 945        
Secured loans and investments $ 2,297        
Weighted average current interest rate on secured loans [16] 16.50%        
Investment, Identifier [Axis]: Thrasio, LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 135 [2]   1,408 [4]    
Secured loans and investments $ 348   $ 2,433    
Weighted average current interest rate on secured loans 13.44% [16]   12.61%    
Investment, Identifier [Axis]: TigerConnect, Inc. (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8]     $ 133    
Secured loans and investments [7],[8]     $ 225    
Weighted average current interest rate on secured loans [7],[8]     12.28%    
Investment, Identifier [Axis]: TigerConnect, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 0    
Secured loans and investments [7]     $ 429    
Weighted average current interest rate on secured loans [7]     12.28%    
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 2,951 [2]   $ 2,940 [4]    
Secured loans and investments $ 3,000   $ 3,000    
Weighted average current interest rate on secured loans 12.21%   12.28%    
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6] $ 160        
Secured loans and investments [5],[6] $ 225        
Weighted average current interest rate on secured loans [5],[6] 12.21%        
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 429        
Weighted average current interest rate on secured loans [6] 12.21%        
Investment, Identifier [Axis]: V10 Entertainment, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 458 [6]   $ 458 [7]    
Weighted average current interest rate on secured loans 12.43% [6]   12.49% [7]    
Investment, Identifier [Axis]: V10 Entertainment, Inc. , Equity Securities, Common units          
Investments          
Investments, at fair value $ 154 [2],[19]   $ 185 [4],[25]    
Investment, Identifier [Axis]: V10 Entertainment, Inc., Senior Secured Loans          
Investments          
Investments, at fair value 4,035 [2]   4,013 [4]    
Secured loans and investments $ 3,970   $ 3,980    
Weighted average current interest rate on secured loans 12.43%   12.49%    
Investment, Identifier [Axis]: VB E1, LLC, Unitranche Secured Loans          
Investments          
Investments, at fair value $ 2,250 [2]   $ 2,250 [4]    
Secured loans and investments $ 2,250   $ 2,250    
Weighted average current interest rate on secured loans 13.05%   13.10%    
Investment, Identifier [Axis]: VPS Holdings, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 1,003 [2],[6]   $ 603 [4],[7]    
Secured loans and investments $ 1,003 [6]   $ 1,003 [7]    
Weighted average current interest rate on secured loans 12.44% [6]   12.47% [7]    
Investment, Identifier [Axis]: VPS Holdings, LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value $ 2,315 [2]   $ 2,405 [4]    
Secured loans and investments $ 2,303   $ 2,397    
Weighted average current interest rate on secured loans 12.44%   12.47%    
Investment, Identifier [Axis]: VPS Holdings, LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,906 [2]   $ 1,978 [4]    
Secured loans and investments $ 1,896   $ 1,971    
Weighted average current interest rate on secured loans 12.44%   12.47%    
Investment, Identifier [Axis]: Valudor Products LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     $ 54    
Secured loans and investments [7]     $ 1,095    
Weighted average current interest rate on secured loans [7]     12.97%    
Investment, Identifier [Axis]: Valudor Products LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [2],[6] $ 54        
Secured loans and investments [6] $ 1,095        
Weighted average current interest rate on secured loans [6] 12.94%        
Investment, Identifier [Axis]: Valudor Products LLC, Equity Securities, Class A-1 units          
Investments          
Investments, at fair value $ 0 [2],[13]   $ 307 [4],[14]    
Investment, Identifier [Axis]: Valudor Products LLC, Senior Secured Loans 1          
Investments          
Investments, at fair value 1,822 [2]   1,875 [4]    
Secured loans and investments 1,587   1,581    
Investment, Identifier [Axis]: Valudor Products LLC, Senior Secured Loans 2          
Investments          
Investments, at fair value 291 [2],[26]   287 [4],[27]    
Secured loans and investments 305 [26]   295 [27]    
Investment, Identifier [Axis]: Valudor Products LLC, Senior Secured Loans 3          
Investments          
Investments, at fair value 1,358 [2]   1,464 [4]    
Secured loans and investments $ 502   $ 502    
Weighted average current interest rate on secured loans 12.94%   12.97%    
Investment, Identifier [Axis]: Vero Biotech Inc., Equity Securities, Warrant          
Investments          
Investments, at fair value $ 28 [2]   $ 0 [4]    
Investment, Identifier [Axis]: Vero Biotech Inc., Senior Secured Loans          
Investments          
Investments, at fair value 2,500 [2]   2,475 [4]    
Secured loans and investments $ 2,500   $ 2,500    
Weighted average current interest rate on secured loans 12.25%   12.25%    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value $ 150 [2],[5],[6]   $ 150 [4],[7],[8]    
Secured loans and investments $ 667 [5],[6]   $ 667 [7],[8]    
Weighted average current interest rate on secured loans 12.08% [5],[6]   12.39% [7],[8]    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value $ 0 [2],[6]   $ 0 [4],[7]    
Secured loans and investments $ 333 [6]   $ 333 [7]    
Weighted average current interest rate on secured loans 12.08% [6]   12.39% [7]    
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans          
Investments          
Investments, at fair value $ 3,000 [2]   $ 3,000 [4]    
Secured loans and investments $ 3,000   $ 3,000    
Weighted average current interest rate on secured loans 12.08%   12.39%    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.) (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8],[28]     $ 292    
Secured loans and investments [7],[8],[28]     353    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Equity Securities, Class A units          
Investments          
Investments, at fair value $ 0 [2]   604 [4],[28]    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans          
Investments          
Investments, at fair value [4],[28]     464    
Secured loans and investments [28]     528    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 1          
Investments          
Investments, at fair value [4],[28]     0    
Secured loans and investments [28]     637    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 2          
Investments          
Investments, at fair value [4],[28]     0    
Secured loans and investments [28]     122    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 3          
Investments          
Investments, at fair value [4],[28]     0    
Secured loans and investments [28]     200    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Junior Secured Loans 4          
Investments          
Investments, at fair value [4],[28]     0    
Secured loans and investments [28]     76    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Senior Secured Loans 1          
Investments          
Investments, at fair value [4],[28]     658    
Secured loans and investments [28]     671    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC (fka Vice Group Holding Inc.), Senior Secured Loans 2          
Investments          
Investments, at fair value [4],[28]     199    
Secured loans and investments [28]     203    
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 1          
Investments          
Investments, at fair value [2] 0        
Secured loans and investments 637        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 2          
Investments          
Investments, at fair value [2] 0        
Secured loans and investments 122        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 3          
Investments          
Investments, at fair value [2] 0        
Secured loans and investments 200        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 4          
Investments          
Investments, at fair value [2] 0        
Secured loans and investments 76        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 5          
Investments          
Investments, at fair value [2] 402        
Secured loans and investments 528        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 6          
Investments          
Investments, at fair value [2] 628        
Secured loans and investments 671        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 7          
Investments          
Investments, at fair value [2] 190        
Secured loans and investments 203        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 8          
Investments          
Investments, at fair value [2] 331        
Secured loans and investments 359        
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Senior Secured Loans          
Investments          
Investments, at fair value [2] 422        
Secured loans and investments 238        
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC (Delayed Draw), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7],[8],[11]     176    
Secured loans and investments [7],[8],[11]     270    
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC, Senior Secured Loans          
Investments          
Investments, at fair value 3,713 [2],[10]   3,631 [4],[11]    
Secured loans and investments 3,631 [10]   3,542 [11]    
Investment, Identifier [Axis]: W3 Monroe RE Debt LLC, Senior Secured Loans, Delayed Draw          
Investments          
Investments, at fair value [2],[5],[6],[10] 231        
Secured loans and investments [5],[6],[10] 274        
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4]     564    
Secured loans and investments     569    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 4,414 [2]   4,509 [4]    
Secured loans and investments 4,609   4,554    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value 55 [2]   56 [4]    
Secured loans and investments 58   57    
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2] 552        
Secured loans and investments 576        
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC (Delayed Draw), Junior Secured Loans          
Investments          
Investments, at fair value 2,125 [2],[5],[6],[10]   1,356 [4],[7],[8],[11]    
Secured loans and investments 2,164 [5],[6],[10]   2,147 [7],[8],[11]    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Equity Securities, Preferred units          
Investments          
Investments, at fair value 2,556 [2],[10],[13]   2,152 [4],[11],[14]    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 1          
Investments          
Investments, at fair value 6,872 [2],[10]   6,794 [4],[11]    
Secured loans and investments 6,971 [10]   6,901 [11]    
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 2          
Investments          
Investments, at fair value 1,189 [2],[10]   1,175 [4],[11]    
Secured loans and investments 1,206 [10]   1,194 [11]    
Investment, Identifier [Axis]: XanEdu Publishing, Inc. (Revolver), Senior Secured Loans          
Investments          
Investments, at fair value [4],[7]     0    
Secured loans and investments [7]     $ 742    
Weighted average current interest rate on secured loans [7]     11.97%    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Equity Securities, Class A units          
Investments          
Investments, at fair value 266 [2]   $ 225 [4]    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans 1          
Investments          
Investments, at fair value 4,441 [2]   4,441 [4]    
Secured loans and investments $ 4,441   $ 4,441    
Weighted average current interest rate on secured loans 11.94%   11.97%    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans 2          
Investments          
Investments, at fair value $ 1,769 [2]   $ 1,768 [4]    
Secured loans and investments $ 1,765   $ 1,765    
Weighted average current interest rate on secured loans 11.94%   11.97%    
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans, Revolver          
Investments          
Investments, at fair value [2],[6] $ 0        
Secured loans and investments [6] $ 742        
Weighted average current interest rate on secured loans [6] 11.94%        
Investment, Identifier [Axis]: iCIMS, Inc., Senior Secured Loans          
Investments          
Investments, at fair value $ 2,522 [2]   $ 2,509 [4]    
Secured loans and investments $ 2,500   $ 2,500    
Weighted average current interest rate on secured loans 12.58%   12.62%    
MRCC Senior Loan Fund I, LLC          
Investments          
Investment company, committed capital $ 100,000   $ 100,000    
Investment company, contributed capital 85,300   85,300    
Investments, at fair value 33,000   33,100    
Assets, fair value disclosure $ 124,865   $ 148,449    
Number of portfolio company investments on non-accrual status | investment 4   4    
Investments on non-accrual status with a fair value $ 5,034   $ 4,260    
Unfunded commitments 1,796   $ 3,332    
MRCC Senior Loan Fund I, LLC | Administration Agreement with Monroe Capital Management Advisors, LLC          
Investments          
Allocable expenses 44 63      
MRCC Senior Loan Fund I, LLC | SLF Credit Facility          
Investments          
Maximum borrowing capacity $ 110,000     $ 175,000  
MRCC Senior Loan Fund I, LLC | SLF Credit Facility | Secured Overnight Financing Rate (SOFR)          
Investments          
Interest rate, basis spread 2.10%        
MRCC Senior Loan Fund I, LLC          
Investments          
Percentage of equity interest 50.00%   50.00%    
Investments, at fair value $ 116,439   $ 139,914    
Dividend income 900 $ 900      
Secured loans and investments $ 124,816   $ 150,674    
Weighted average current interest rate on secured loans 10.20%   10.20%    
Number of portfolio company investments in SLF | investment 41   49    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: 360Holdco, Inc. 1          
Investments          
Investments, at fair value     $ 2,124    
Secured loans and investments     $ 2,124    
Weighted average current interest rate on secured loans     10.96%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: 360Holdco, Inc. 2          
Investments          
Investments, at fair value     $ 821    
Secured loans and investments     $ 821    
Weighted average current interest rate on secured loans     10.96%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Accelerate Auto Works Intermediate, LLC (Revolver)          
Investments          
Investments, at fair value $ 21        
Secured loans and investments $ 132        
Weighted average current interest rate on secured loans 10.24%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Accelerate Auto Works Intermediate, LLC (Revolver)          
Investments          
Investments, at fair value     $ 0    
Secured loans and investments     $ 132    
Weighted average current interest rate on secured loans     10.29%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Accelerate Auto Works Intermediate, LLC 1          
Investments          
Investments, at fair value $ 1,337   $ 1,342    
Secured loans and investments $ 1,354   $ 1,358    
Weighted average current interest rate on secured loans 10.24%   10.29%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Accelerate Auto Works Intermediate, LLC 2          
Investments          
Investments, at fair value $ 382   $ 383    
Secured loans and investments $ 387   $ 388    
Weighted average current interest rate on secured loans 10.22%   10.30%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Avison Young (USA) Inc.          
Investments          
Investments, at fair value $ 599   $ 1,564    
Secured loans and investments $ 606   $ 4,775    
Weighted average current interest rate on secured loans 11.84%   11.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Avison Young (USA) Inc. 1          
Investments          
Investments, at fair value $ 1,193        
Secured loans and investments $ 1,492        
Weighted average current interest rate on secured loans 13.58%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Avison Young (USA) Inc. 2          
Investments          
Investments, at fair value $ 305        
Secured loans and investments $ 510        
Weighted average current interest rate on secured loans 13.58%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Avison Young (USA) Inc., Class A preferred shares          
Investments          
Investments, at fair value $ 722        
Secured loans and investments $ 1,605        
Weighted average current interest rate on secured loans 12.50%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Avison Young (USA) Inc., Class F common shares          
Investments          
Investments, at fair value $ 0        
Secured loans and investments 1        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: CHA Holdings, Inc 1          
Investments          
Investments, at fair value     $ 1,908    
Secured loans and investments     $ 1,939    
Weighted average current interest rate on secured loans     9.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: CHA Holdings, Inc 2          
Investments          
Investments, at fair value     $ 402    
Secured loans and investments     $ 409    
Weighted average current interest rate on secured loans     9.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Cano Health, LLC          
Investments          
Investments, at fair value 590   $ 857    
Secured loans and investments $ 1,950   $ 1,950    
Weighted average current interest rate on secured loans 9.33%   9.42%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Corel Inc.          
Investments          
Investments, at fair value $ 3,303   $ 3,323    
Secured loans and investments $ 3,350   $ 3,400    
Weighted average current interest rate on secured loans 10.44%   10.49%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: DS Parent, Inc.          
Investments          
Investments, at fair value     $ 2,706    
Secured loans and investments     $ 2,700    
Weighted average current interest rate on secured loans     11.21%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Dresser Utility Solutions, LLC 1          
Investments          
Investments, at fair value     $ 1,602    
Secured loans and investments     $ 1,660    
Weighted average current interest rate on secured loans     9.46%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Dresser Utility Solutions, LLC 2          
Investments          
Investments, at fair value     $ 239    
Secured loans and investments     $ 243    
Weighted average current interest rate on secured loans     10.71%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Elevate Textiles, Inc. (fka International Textile Group, Inc.)          
Investments          
Investments, at fair value $ 585        
Secured loans and investments $ 796        
Weighted average current interest rate on secured loans 11.98%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Elevate Textiles, Inc. (fka International Textile Group, Inc.)          
Investments          
Investments, at fair value     $ 798    
Secured loans and investments     $ 798    
Weighted average current interest rate on secured loans     12.04%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Elevate Textiles, Inc. (fka International Textile Group, Inc.), Common units          
Investments          
Investments, at fair value $ 83   $ 103    
Secured loans and investments 26   26    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Eliassen Group, LLC          
Investments          
Investments, at fair value 3,177   3,152    
Secured loans and investments $ 3,209   $ 3,218    
Weighted average current interest rate on secured loans 10.81%   10.85%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Eliassen Group, LLC (Delayed Draw)          
Investments          
Investments, at fair value $ 229   $ 227    
Secured loans and investments $ 738   $ 739    
Weighted average current interest rate on secured loans 10.82%   10.86%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Engage2Excel, Inc. (Revolver)          
Investments          
Investments, at fair value     $ 550    
Secured loans and investments     $ 550    
Weighted average current interest rate on secured loans     12.53%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Engage2Excel, Inc. 1          
Investments          
Investments, at fair value $ 3,912   $ 3,918    
Secured loans and investments $ 3,907   $ 3,918    
Weighted average current interest rate on secured loans 11.78%   12.53%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Engage2Excel, Inc. 2          
Investments          
Investments, at fair value $ 706   $ 707    
Secured loans and investments $ 705   $ 707    
Weighted average current interest rate on secured loans 11.78%   12.53%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Engage2Excel, Inc. 3          
Investments          
Investments, at fair value $ 550        
Secured loans and investments $ 550        
Weighted average current interest rate on secured loans 11.78%        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Excel Fitness Holdings, Inc.          
Investments          
Investments, at fair value $ 4,309   $ 4,308    
Secured loans and investments $ 4,309   $ 4,320    
Weighted average current interest rate on secured loans 10.70%   10.75%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Excel Fitness Holdings, Inc. (Revolver)          
Investments          
Investments, at fair value $ 0   $ 0    
Secured loans and investments $ 625   $ 625    
Weighted average current interest rate on secured loans 10.70%   10.75%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: HAH Group Holding Company LLC          
Investments          
Investments, at fair value $ 2,936   $ 2,942    
Secured loans and investments $ 2,943   $ 2,950    
Weighted average current interest rate on secured loans 10.44%   10.46%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: HALO Buyer, Inc.          
Investments          
Investments, at fair value $ 3,452   $ 3,570    
Secured loans and investments $ 4,710   $ 4,723    
Weighted average current interest rate on secured loans 9.93%   9.96%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Harbour Benefit Holdings, Inc. 1          
Investments          
Investments, at fair value $ 2,842   $ 2,852    
Secured loans and investments $ 2,842   $ 2,854    
Weighted average current interest rate on secured loans 10.45%   10.50%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Harbour Benefit Holdings, Inc. 2          
Investments          
Investments, at fair value $ 61   $ 61    
Secured loans and investments $ 61   $ 61    
Weighted average current interest rate on secured loans 10.43%   10.46%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Intermedia Holdings, Inc.          
Investments          
Investments, at fair value $ 1,720   $ 1,687    
Secured loans and investments $ 1,737   $ 1,742    
Weighted average current interest rate on secured loans 11.43%   11.47%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Keystone Purchaser, LLC          
Investments          
Investments, at fair value $ 4,874   $ 4,868    
Secured loans and investments $ 4,892   $ 4,905    
Weighted average current interest rate on secured loans 11.51%   11.53%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: LSCS Holdings, Inc.          
Investments          
Investments, at fair value $ 1,781   $ 1,786    
Secured loans and investments $ 1,805   $ 1,809    
Weighted average current interest rate on secured loans 9.94%   9.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Largest Portfolio Company Investment          
Investments          
Secured loans and investments $ 6,580   $ 6,580    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Laseraway Intermediate Holdings II, LLC          
Investments          
Investments, at fair value 2,167   2,153    
Secured loans and investments $ 2,172   $ 2,178    
Weighted average current interest rate on secured loans 11.33%   11.41%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Lightbox Intermediate, L.P.          
Investments          
Investments, at fair value $ 4,620   $ 4,632    
Secured loans and investments $ 4,763   $ 4,775    
Weighted average current interest rate on secured loans 10.56%   10.61%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: MacQueen Equipment, LLC          
Investments          
Investments, at fair value $ 2,069   $ 2,075    
Secured loans and investments $ 2,070   $ 2,075    
Weighted average current interest rate on secured loans 10.81%   10.86%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: MacQueen Equipment, LLC (Delayed Draw)          
Investments          
Investments, at fair value $ 334   $ 78    
Secured loans and investments $ 590   $ 591    
Weighted average current interest rate on secured loans 10.81%   10.86%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: MacQueen Equipment, LLC (Revolver)          
Investments          
Investments, at fair value $ 0   $ 0    
Secured loans and investments $ 296   $ 296    
Weighted average current interest rate on secured loans 10.81%   10.86%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Mavenir Systems, Inc.          
Investments          
Investments, at fair value $ 1,169   $ 1,159    
Secured loans and investments $ 1,633   $ 1,638    
Weighted average current interest rate on secured loans 10.34%   10.39%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: McKissock Investment Holdings, LLC          
Investments          
Investments, at fair value $ 2,461   $ 2,459    
Secured loans and investments $ 2,450   $ 2,456    
Weighted average current interest rate on secured loans 10.46%   10.54%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Minotaur Acquisition, Inc.          
Investments          
Investments, at fair value $ 4,805   $ 4,814    
Secured loans and investments $ 4,794   $ 4,806    
Weighted average current interest rate on secured loans 10.18%   10.21%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Natus Medical Incorporated          
Investments          
Investments, at fair value $ 4,666   $ 4,604    
Secured loans and investments $ 4,937   $ 4,950    
Weighted average current interest rate on secured loans 10.96%   10.85%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: North Haven Spartan US Holdco, LLC          
Investments          
Investments, at fair value $ 2,244   $ 2,241    
Secured loans and investments $ 2,244   $ 2,250    
Weighted average current interest rate on secured loans 11.57%   11.63%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Offen, Inc. 1          
Investments          
Investments, at fair value $ 2,248   $ 2,249    
Secured loans and investments $ 2,249   $ 2,249    
Weighted average current interest rate on secured loans 10.44%   10.47%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Offen, Inc. 2          
Investments          
Investments, at fair value $ 856   $ 858    
Secured loans and investments $ 856   $ 858    
Weighted average current interest rate on secured loans 10.44%   10.47%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Output Services Group, Inc.          
Investments          
Investments, at fair value $ 1,040   $ 1,041    
Secured loans and investments $ 1,042   $ 1,042    
Weighted average current interest rate on secured loans 12.07%   12.07%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Output Services Group, Inc., (Class A units)          
Investments          
Investments, at fair value $ 552   $ 438    
Secured loans and investments 51   51    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: PH Beauty Holdings III, INC.          
Investments          
Investments, at fair value 2,338   2,253    
Secured loans and investments $ 2,361   $ 2,368    
Weighted average current interest rate on secured loans 10.72%   10.35%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: PVHC Holding Corp          
Investments          
Investments, at fair value $ 1,894   $ 1,895    
Secured loans and investments 1,894   1,895    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Paragon Healthcare, Inc. (Revolver)          
Investments          
Investments, at fair value     0    
Secured loans and investments     $ 490    
Weighted average current interest rate on secured loans     11.22%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Paragon Healthcare, Inc. 1          
Investments          
Investments, at fair value     $ 2,083    
Secured loans and investments     $ 2,105    
Weighted average current interest rate on secured loans     11.25%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Paragon Healthcare, Inc. 2          
Investments          
Investments, at fair value     $ 359    
Secured loans and investments     $ 363    
Weighted average current interest rate on secured loans     11.22%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Phoenix Chemical Holding Company LLC          
Investments          
Investments, at fair value 964   $ 1,020    
Secured loans and investments $ 1,129   $ 1,131    
Weighted average current interest rate on secured loans 12.44%   12.47%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Polychem Acquisition, LLC          
Investments          
Investments, at fair value $ 2,836   $ 2,855    
Secured loans and investments $ 2,850   $ 2,858    
Weighted average current interest rate on secured loans 10.44%   10.47%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Polyventive Lender Holding Company LLC          
Investments          
Percentage of equity interest 0.84%   0.84%    
Investments, at fair value $ 0   $ 0    
Secured loans and investments 0   0    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Radiology Partners, Inc.          
Investments          
Investments, at fair value     3,844    
Secured loans and investments     $ 4,737    
Weighted average current interest rate on secured loans     10.18%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Radiology Partners, Inc.          
Investments          
Investments, at fair value 4,102        
Secured loans and investments 4,236        
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC          
Investments          
Investments, at fair value 3,971   $ 4,914    
Secured loans and investments $ 6,580   $ 6,580    
Weighted average current interest rate on secured loans 11.07%   11.14%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Runner Buyer INC.          
Investments          
Investments, at fair value $ 2,245   $ 2,333    
Secured loans and investments $ 2,940   $ 2,948    
Weighted average current interest rate on secured loans 10.96%   11.00%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: SIRVA Worldwide Inc.          
Investments          
Investments, at fair value $ 1,267   $ 1,556    
Secured loans and investments $ 1,738   $ 1,750    
Weighted average current interest rate on secured loans 11.10%   11.15%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: STATS Intermediate Holdings, LLC          
Investments          
Investments, at fair value $ 4,746   $ 4,684    
Secured loans and investments $ 4,788   $ 4,800    
Weighted average current interest rate on secured loans 10.83%   10.88%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: SW Ingredients Holdings, LLC          
Investments          
Investments, at fair value $ 3,534   $ 3,539    
Secured loans and investments $ 3,534   $ 3,544    
Weighted average current interest rate on secured loans 10.93%   10.21%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Sandvine Corporation          
Investments          
Investments, at fair value $ 1,473   $ 1,598    
Secured loans and investments $ 1,973   $ 1,973    
Weighted average current interest rate on secured loans 10.15%   9.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Secretariat Advisors LLC 1          
Investments          
Investments, at fair value $ 1,663   $ 1,676    
Secured loans and investments $ 1,672   $ 1,676    
Weighted average current interest rate on secured loans 10.32%   10.36%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Secretariat Advisors LLC 2          
Investments          
Investments, at fair value $ 265   $ 267    
Secured loans and investments $ 267   $ 267    
Weighted average current interest rate on secured loans 10.32%   10.36%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: TA TT Buyer, LLC          
Investments          
Investments, at fair value $ 3,301   $ 3,275    
Secured loans and investments $ 3,283   $ 3,292    
Weighted average current interest rate on secured loans 10.30%   10.35%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: TEAM Public Choices, LLC          
Investments          
Investments, at fair value $ 2,921   $ 2,908    
Secured loans and investments $ 2,917   $ 2,925    
Weighted average current interest rate on secured loans 10.58%   10.88%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: TGG TS Acquisition Company          
Investments          
Investments, at fair value $ 2,880   $ 2,791    
Secured loans and investments $ 2,885   $ 2,885    
Weighted average current interest rate on secured loans 11.94%   11.97%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: TJC Spartech Acquisition Corp.          
Investments          
Investments, at fair value $ 3,507   $ 4,063    
Secured loans and investments $ 4,200   $ 4,210    
Weighted average current interest rate on secured loans 10.07%   10.16%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Tait LLC          
Investments          
Investments, at fair value     $ 4,026    
Secured loans and investments     $ 4,040    
Weighted average current interest rate on secured loans     10.00%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Tait LLC (Revolver)          
Investments          
Investments, at fair value     $ 0    
Secured loans and investments     $ 769    
Weighted average current interest rate on secured loans     10.00%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Teneo Holdings LLC          
Investments          
Investments, at fair value     $ 4,791    
Secured loans and investments     $ 4,787    
Weighted average current interest rate on secured loans     10.71%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments          
Investments          
Secured loans and investments $ 26,366   $ 26,415    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Trident Maritime Systems, Inc. (Revolver)          
Investments          
Investments, at fair value 317   315    
Secured loans and investments $ 319   $ 319    
Weighted average current interest rate on secured loans 10.93%   10.96%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Trident Maritime Systems, Inc. 1          
Investments          
Investments, at fair value $ 2,388   $ 2,385    
Secured loans and investments $ 2,406   $ 2,414    
Weighted average current interest rate on secured loans 10.96%   10.95%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Trident Maritime Systems, Inc. 2          
Investments          
Investments, at fair value $ 741   $ 737    
Secured loans and investments $ 746   $ 746    
Weighted average current interest rate on secured loans 10.96%   10.95%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Trident Maritime Systems, Inc. 3          
Investments          
Investments, at fair value $ 186   $ 186    
Secured loans and investments $ 188   $ 188    
Weighted average current interest rate on secured loans 10.96%   10.96%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Truck-Lite Co., LLC 1          
Investments          
Investments, at fair value     $ 1,670    
Secured loans and investments     $ 1,674    
Weighted average current interest rate on secured loans     11.71%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Truck-Lite Co., LLC 2          
Investments          
Investments, at fair value     $ 248    
Secured loans and investments     $ 248    
Weighted average current interest rate on secured loans     11.71%    
MRCC Senior Loan Fund I, LLC | Investment, Identifier [Axis]: Truck-Lite Co., LLC 3          
Investments          
Investments, at fair value     $ 42    
Secured loans and investments     $ 42    
Weighted average current interest rate on secured loans     11.71%    
MRCC Senior Loan Fund I, LLC | Equity Interest Subscriptions          
Investments          
Investment company, contributed capital $ 42,650   $ 42,650    
Other commitment $ 50,000   $ 50,000    
LSW          
Investments          
Number of representatives | representative 1        
[1] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940 (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[2] Because there is no readily available market value for these investments, the fair value of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).
[3] All of the Company's investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940 (the “1940 Act”), unless otherwise noted. All of the Company's investments are issued by U.S. portfolio companies unless otherwise noted.
[4] Because there is no readily available market value for these investments, the fair value of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements.)
[5] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings.
[6] All or a portion of this commitment was unfunded at March 31, 2024. As such, interest is earned only on the funded portion of this commitment.
[7] All or a portion of this commitment was unfunded at December 31, 2023. As such, interest is earned only on the funded portion of this commitment.
[8] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings.
[9] As of March 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $189.
[10] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of March 31, 2024, non-qualifying assets totaled 23.6% of the Company’s total assets.
[11] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2023, non-qualifying assets totaled 23.6% of the Company’s total assets.
[12] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[13] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[14] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[15] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[16] This position was on non-accrual status as of March 31, 2024, meaning that the Company has ceased accruing interest income on the position. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s accounting policies.
[17] The Company restructured its investments in HFZ Capital Group LLC (“HFZ”) and HFZ Member RB portfolio, LLC (“Member RB”) during 2020. As part of the restructuring of HFZ, the Company obtained a 15.9% equity interest in MC Asset Management (Corporate), LLC (“Corporate”). As part of the Member RB restructuring, the Company exchanged its loan in Member RB for a promissory note in MC Asset Management (Industrial), LLC (“Industrial”). Corporate owns 100% of the equity of Industrial. In conjunction with these restructurings, the Company participated $4,758 of principal of its loan to HFZ as an equity contribution to Industrial. This participation did not qualify for sale accounting under ASC Topic 860–Transfers and Servicing because the sale did not meet the definition of a “participating interest”, as defined in the guidance, in order for sale treatment to be allowed. As a result, the Company continues to reflect its full investment in HFZ but has split the loan into two investments.
[18] The Company restructured its investments in HFZ Capital Group LLC (“HFZ”) and HFZ Member RB portfolio, LLC (“Member RB”) during 2020. As part of the restructuring of HFZ, the Company obtained a 15.9% equity interest in MC Asset Management (Corporate), LLC (“Corporate”). As part of the Member RB restructuring, the Company exchanged its loan in Member RB for a promissory note in MC Asset Management (Industrial), LLC (“Industrial”). Corporate owns 100% of the equity of Industrial. In conjunction with these restructurings, the Company participated $4,758 of principal of its loan to HFZ as an equity contribution to Industrial. This participation did not qualify for sale accounting under ASC Topic 860–Transfers and Servicing because the sale did not meet the definition of a “participating interest”, as defined in the guidance, in order for sale treatment to be allowed. As a result, the Company continues to reflect its full investment in HFZ but has split the loan into two investments.
[19] As of March 31, 2024, the Company was party to a subscription agreement with a commitment to fund an equity investment of $43.
[20] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an equity investment of $43.
[21] This is an international company.
[22] This is an international company.
[23] As of March 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $16.
[24] As of December 31, 2023, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $16.
[25] As of December 31, 2023, the company was party to a subscription agreement with a commitment to fund an additional equity investment of $189.
[26] This investment represents a note convertible to preferred shares of the borrower.
[27] This investment represents a note convertible to preferred shares of the borrower.
[28] During the year ended December 31, 2023, the senior secured lender group of Vice Group Inc. ("Vice OldCo") established Vice Acquisition Holdco, LLC ("Vice NewCo") in order to acquire a substantial portion of the assets of Vice OldCo as a part of a bankruptcy restructuring. Vice NewCo credit bid a portion of the senior secured debt in Vice OldCo to acquire certain assets of Vice OldCo which constitute the ongoing operations of the portfolio company. The Company's outstanding senior secured debt investment in Vice OldCo was reduced and rolled into new secured debt investments and the remaining amount of the credit bid established the cost basis of its new equity investment. While the Company still has loans outstanding at Vice OldCo, the Company has valued these positions at zero as end of the period.