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Investments - PPVA Black Elk (Equity) LLC (Details)
€ in Thousands, £ in Thousands, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 22, 2017
USD ($)
Aug. 31, 2017
USD ($)
Aug. 31, 2014
USD ($)
Dec. 31, 2018
USD ($)
Sep. 30, 2025
USD ($)
shares
Sep. 30, 2025
EUR (€)
shares
Sep. 30, 2025
GBP (£)
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2024
EUR (€)
shares
Sep. 30, 2023
USD ($)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
May 03, 2013
USD ($)
shares
Schedule of Investments [Line Items]                          
Cost         $ 3,062,321 [1]     $ 3,101,924 [2]          
Investments at fair value         $ 2,943,619 [1]     $ 3,091,024 [2]          
Black Elk Trustee                          
Schedule of Investments [Line Items]                          
Damages sought $ 20,540 $ 20,540                      
Settlement amount awarded to other party $ 16,000                        
Payment received for settlement       $ 1,500                  
Investment, Identifier [Axis]: AAC Lender Holdings, LLC, Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         758 [3],[4],[5],[6] 758 [3],[4],[5],[6] 758 [3],[4],[5],[6] 758 [7],[8],[9],[10] 758 [7],[8],[9],[10]        
Cost         $ 0 [4],[5],[6]     $ 0 [8],[9],[10]          
Investments at fair value         0 [4],[5],[6]     0 [8],[9],[10]          
Investment, Identifier [Axis]: AAH Topco, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,659 [3],[5],[6],[11]     3,659 [7],[9],[10],[12]          
Cost         (37) [5],[6],[11]     (37) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,560 [3],[5],[13],[14]     22,733 [7],[9],[15],[16]          
Cost         22,444 [5],[13],[14]     22,583 [9],[15],[16]          
Investments at fair value         22,560 [5],[13],[14]     22,734 [9],[15],[16]          
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         20,061 [3],[5],[6],[17]     20,218 [7],[9],[10],[18]          
Cost         19,974 [5],[6],[17]     20,104 [9],[10],[18]          
Investments at fair value         20,061 [5],[6],[17]     20,218 [9],[10],[18]          
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         9,525 [3],[5],[19]     9,599 [7],[9],[20]          
Cost         9,483 [5],[19]     9,545 [9],[20]          
Investments at fair value         9,525 [5],[19]     9,599 [9],[20]          
Investment, Identifier [Axis]: AAH Topco, LLC, First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,319 [3],[5],[19]     7,375 [7],[9],[20]          
Cost         7,282 [5],[19]     7,327 [9],[20]          
Investments at fair value         7,319 [5],[19]     7,375 [9],[20]          
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         17,145 [3],[5],[6],[17]     15,733 [7],[9],[10],[18]          
Cost         17,020 [5],[6],[17]     15,598 [9],[10],[18]          
Investments at fair value         16,901 [5],[6],[17]     15,366 [9],[10],[18]          
Investment, Identifier [Axis]: AAH Topco, LLC, Subordinated 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,724 [3],[5],[19]     6,170 [7],[9],[20]          
Cost         6,674 [5],[19]     6,117 [9],[20]          
Investments at fair value         6,628 [5],[19]     6,027 [9],[20]          
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               235          
Cost [9],[10],[12]               233          
Investments at fair value [9],[10],[12]               228          
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,224                
Cost [5],[6],[11]         1,212                
Investments at fair value [5],[6],[11]         1,102                
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,130 [3],[5],[6],[11],[21]     2,118 [7],[9],[10],[12],[22]          
Cost         (11) [5],[6],[11],[21]     (21) [9],[10],[12],[22]          
Investments at fair value         (113) [5],[6],[11],[21]     (62) [9],[10],[12],[22]          
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,456 [3],[5],[13],[14]     21,910 [7],[9],[15],[16]          
Cost         22,351 [5],[13],[14]     21,782 [9],[15],[16]          
Investments at fair value         20,210 [5],[13],[14]     21,266 [9],[15],[16]          
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,311 [3],[5],[6],[17]     4,206 [7],[9],[10],[18]          
Cost         4,281 [5],[6],[17]     4,170 [9],[10],[18]          
Investments at fair value         3,880 [5],[6],[17]     4,082 [9],[10],[18]          
Investment, Identifier [Axis]: ACI Group Holdings, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,980 [3],[5],[6],[17]     3,884 [7],[9],[10],[18]          
Cost         3,959 [5],[6],[17]     3,858 [9],[10],[18]          
Investments at fair value         $ 3,582 [5],[6],[17]     $ 3,769 [9],[10],[18]          
Investment, Identifier [Axis]: ACI Parent Inc., Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         12,500 [3],[5],[6],[21] 12,500 [3],[5],[6],[21] 12,500 [3],[5],[6],[21] 12,500 [7],[9],[10],[22] 12,500 [7],[9],[10],[22]        
Principal amount, par value         $ 20,249                
Cost         20,124 [5],[6],[21]     $ 18,444 [9],[10],[22]          
Investments at fair value         10,125 [5],[6],[21]     16,419 [9],[10],[22]          
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,062 [3],[5],[6],[17]     3,062 [7],[9],[10],[18]          
Cost         3,050 [5],[6],[17]     3,048 [9],[10],[18]          
Investments at fair value         3,062 [5],[6],[17]     3,062 [9],[10],[18]          
Investment, Identifier [Axis]: AI Altius US Bidco, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,077 [3],[5],[6],[11]     3,077 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Accelya Lux Finco S.a.r.l., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6],[23]         9,552                
Cost [6],[23]         9,361                
Investments at fair value [6],[23]         9,361                
Investment, Identifier [Axis]: Acumatica Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         39,188                
Cost [5],[6],[17]         39,188                
Investments at fair value [5],[6],[17]         39,188                
Investment, Identifier [Axis]: Acumatica Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         9,403                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,739 [3],[5],[6],[17],[23]     4,698 [7],[9],[10],[18],[24]          
Cost         4,701 [5],[6],[17],[23]     4,656 [9],[10],[18],[24]          
Investments at fair value         4,739 [5],[6],[17],[23]     4,698 [9],[10],[18],[24]          
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,048          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,048                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Adelaide Borrower, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         667 [3],[5],[6],[11]     667 [7],[9],[10],[12]          
Cost         (7) [5],[6],[11]     (7) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp. First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         8,414                
Cost [5],[6],[17]         8,324                
Investments at fair value [5],[6],[17]         $ 8,309                
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               8,510          
Cost [9],[10],[18]               8,406          
Investments at fair value [9],[10],[18]               $ 8,404          
Investment, Identifier [Axis]: Ambrosia Holdco Corp., Ordinary shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[16]               126,536 126,536        
Cost [9],[16]               $ 1,348          
Investments at fair value [9],[16]               $ 1,348          
Investment, Identifier [Axis]: Ambrosia Holdco Corp., Ordinary shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10]               122,044 122,044        
Cost [9],[10]               $ 1,300          
Investments at fair value [9],[10]               1,300          
Investment, Identifier [Axis]: Ambrosia Topco LLC, Class A-1 common units 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[14]         126,536 126,536 126,536            
Cost [5],[14]         $ 1,348                
Investments at fair value [5],[14]         $ 590                
Investment, Identifier [Axis]: Ambrosia Topco LLC, Class A-1 common units 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6]         122,044 122,044 122,044            
Cost [5],[6]         $ 1,300                
Investments at fair value [5],[6]         569                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,969          
Cost [9],[10],[12]               (10)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,969                
Cost [5],[6],[11]         (10)                
Investments at fair value [5],[6],[11]         (23)                
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         18,818 [3],[5],[6],[17]     18,964 [7],[9],[15],[16]          
Cost         18,774 [5],[6],[17]     18,908 [9],[15],[16]          
Investments at fair value         18,603 [5],[6],[17]     18,964 [9],[15],[16]          
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,237 [3],[5],[13],[14]     5,277 [7],[9],[15],[16]          
Cost         5,223 [5],[13],[14]     5,259 [9],[15],[16]          
Investments at fair value         5,176 [5],[13],[14]     5,277 [9],[15],[16]          
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         688 [3],[5],[6],[17]     693 [7],[9],[10],[18]          
Cost         686 [5],[6],[17]     690 [9],[10],[18]          
Investments at fair value         680 [5],[6],[17]     693 [9],[10],[18]          
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         31,406                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[8],[9],[10],[12]               2,652          
Cost [8],[9],[10],[12]               0          
Investments at fair value [8],[9],[10],[12]               0          
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[4],[5],[6],[11]         2,652                
Cost [4],[5],[6],[11]         0                
Investments at fair value [4],[5],[6],[11]         0                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         29,879 [3],[5],[14]     29,879 [7],[9],[16]          
Cost         29,842 [5],[14]     29,843 [9],[16]          
Investments at fair value         17,999 [5],[14]     17,999 [9],[16]          
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,527 [3],[5],[6]     1,527 [7],[9],[10]          
Cost         1,527 [5],[6]     1,527 [9],[10]          
Investments at fair value         0 [5],[6]     0 [9],[10]          
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), First lien, Non-accrual status                          
Schedule of Investments [Line Items]                          
Principal amount, par value                   $ 17,927 $ 13,479    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Non-accrual status                          
Schedule of Investments [Line Items]                          
Cost         31,369                
Investments at fair value         17,999                
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,230 [3],[5],[6]     5,230 [7],[9],[10]          
Cost         0 [5],[6]     0 [9],[10]          
Investments at fair value         0 [5],[6]     0 [9],[10]          
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.), Subordinated, Non-accrual status                          
Schedule of Investments [Line Items]                          
Principal amount, par value                       $ 5,230  
Investment, Identifier [Axis]: Anaplan, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,539 [3],[5],[6],[17]     10,618 [7],[9],[10],[18]          
Cost         10,479 [5],[6],[17]     10,548 [9],[10],[18]          
Investments at fair value         $ 10,539 [5],[6],[17]     $ 10,618 [9],[10],[18]          
Investment, Identifier [Axis]: Ancora Acquisition LLC, Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         372 [3],[5],[25] 372 [3],[5],[25] 372 [3],[5],[25] 372 [7],[9],[26] 372 [7],[9],[26]        
Cost         $ 83 [5],[25]     $ 83 [9],[26]          
Investments at fair value         0 [5],[25]     0 [9],[26]          
Investment, Identifier [Axis]: Associations, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         49,057 [3],[5],[6],[17]     49,430 [7],[9],[10],[18]          
Cost         49,038 [5],[6],[17]     49,409 [9],[10],[18]          
Investments at fair value         49,057 [5],[6],[17]     49,430 [9],[10],[18]          
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               641          
Cost [9],[10],[12]               641          
Investments at fair value [9],[10],[12]               641          
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               3,200          
Cost [9],[10],[12]               (2)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,450                
Cost [5],[6],[11]         1,449                
Investments at fair value [5],[6],[11]         1,450                
Investment, Identifier [Axis]: Associations, Inc., First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,539          
Cost [9],[10],[12]               1,538          
Investments at fair value [9],[10],[12]               1,539          
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,380 [3],[5],[6],[11]     1,539 [7],[9],[10],[12]          
Cost         (1) [5],[6],[11]     (1) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Associations, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         3,077                
Cost [5],[6],[11]         (2)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Associations, Inc., Subordinated 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,851 [3],[5],[6]     7,959 [7],[9],[10]          
Cost         8,835 [5],[6]     7,942 [9],[10]          
Investments at fair value         9,028 [5],[6]     7,959 [9],[10]          
Investment, Identifier [Axis]: Associations, Inc., Subordinated 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,380 [3],[5],[6]     3,039 [7],[9],[10]          
Cost         3,374 [5],[6]     3,033 [9],[10]          
Investments at fair value         3,515 [5],[6]     3,039 [9],[10]          
Investment, Identifier [Axis]: Aston FinCo S.a r.l. / Aston US Finco, LLC, Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18],[24]               34,459          
Cost [9],[10],[18],[24]               34,335          
Investments at fair value [9],[10],[18],[24]               34,459          
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[24]               320          
Cost [9],[10],[12],[24]               (5)          
Investments at fair value [9],[10],[12],[24]               0          
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[23]         790                
Cost [5],[6],[11],[23]         (6)                
Investments at fair value [5],[6],[11],[23]         0                
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,474 [3],[5],[13],[14]     3,445 [7],[9],[10],[18]          
Cost         4,464 [5],[13],[14]     3,405 [9],[10],[18]          
Investments at fair value         4,474 [5],[13],[14]     3,445 [9],[10],[18]          
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,419 [3],[5],[6],[17]     1,342 [7],[9],[10],[18]          
Cost         3,384 [5],[6],[17]     1,330 [9],[10],[18]          
Investments at fair value         3,419 [5],[6],[17]     1,342 [9],[10],[18]          
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         1,332                
Cost [5],[6],[17]         1,322                
Investments at fair value [5],[6],[17]         1,332                
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         36,155                
Cost [5],[6],[17]         35,971                
Investments at fair value [5],[6],[17]         35,522                
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               21,624          
Cost [9],[10],[18]               21,492          
Investments at fair value [9],[10],[18]               21,138          
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.), First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               14,624          
Cost [9],[15],[16]               14,534          
Investments at fair value [9],[15],[16]               14,295          
Investment, Identifier [Axis]: Avalara, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               17,198          
Cost [9],[10],[18]               17,045          
Investments at fair value [9],[10],[18]               17,198          
Investment, Identifier [Axis]: Avalara, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,720          
Cost [9],[10],[12]               (21)          
Investments at fair value [9],[10],[12]               $ 0          
Investment, Identifier [Axis]: Bach Special Limited (Bach Preference Limited), Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[10],[18],[24]               138,678 138,678        
Cost [10],[18],[24]               $ 13,788          
Investments at fair value [10],[18],[24]               13,867          
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               13,687          
Cost [9],[10],[18]               13,591          
Investments at fair value [9],[10],[18]               13,585          
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,122 [3],[5],[6],[11]     2,065 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         (11) [5],[6],[11]     (15) [9],[10],[12]          
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,707 [3],[5],[6],[11]     2,894 [7],[9],[10],[12]          
Cost         (26) [5],[6],[11]     (22) [9],[10],[12]          
Investments at fair value         (19) [5],[6],[11]     (22) [9],[10],[12]          
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         15,642                
Cost [5],[6],[17]         15,540                
Investments at fair value [5],[6],[17]         15,642                
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         5,782                
Cost [5],[13],[14]         5,755                
Investments at fair value [5],[13],[14]         5,753                
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         378                
Cost [5],[6],[17]         376                
Investments at fair value [5],[6],[17]         376                
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,046 [3],[5],[6],[17]     6,109 [7],[9],[10],[18],[27]          
Cost         3,036 [5],[6],[17]     6,081 [9],[10],[18],[27]          
Investments at fair value         3,046 [5],[6],[17]     6,109 [9],[10],[18],[27]          
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC), First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         417 [3],[5],[6],[11]     417 [7],[9],[10],[12],[27]          
Cost         (4) [5],[6],[11]     (4) [9],[10],[12],[27]          
Investments at fair value         0 [5],[6],[11]     $ 0 [9],[10],[12],[27]          
Investment, Identifier [Axis]: Bamboo Health Intermediate Holdings (fka Appriss Health Intermediate Holdings, Inc.), Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[27]               2,333 2,333        
Cost [9],[10],[27]               $ 3,432          
Investments at fair value [9],[10],[27]               3,371          
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         464 [3],[5],[6],[11]     467 [7],[9],[10],[12]          
Cost         460 [5],[6],[11]     464 [9],[10],[12]          
Investments at fair value         464 [5],[6],[11]     467 [9],[10],[12]          
Investment, Identifier [Axis]: Beacon Pointe Harmony, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,685 [3],[5],[6],[11]     1,685 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Bonterra LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         15,027                
Cost [5],[6],[17]         14,997                
Investments at fair value [5],[6],[17]         14,990                
Investment, Identifier [Axis]: Bonterra LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         244                
Cost [5],[6],[11]         244                
Investments at fair value [5],[6],[11]         244                
Investment, Identifier [Axis]: Bonterra LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,384                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         (3)                
Investment, Identifier [Axis]: Bonterra LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,629                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (4)                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[12],[28]               1,319          
Cost [9],[12],[28]               1,318          
Investments at fair value [9],[12],[28]               1,319          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               516          
Cost [9],[10],[12]               520          
Investments at fair value [9],[10],[12]               516          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,594                
Cost [5],[6],[11]         (6)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               376          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,594          
Cost [9],[10],[12]               (6)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien - Undrawn 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[12],[28]               963          
Cost [9],[12],[28]               (7)          
Investments at fair value [9],[12],[28]               0          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         19,868 [3],[5],[29]     20,019 [7],[9],[28]          
Cost         19,789 [5],[29]     19,931 [9],[28]          
Investments at fair value         19,868 [5],[29]     20,019 [9],[28]          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,768 [3],[5],[13],[14]     7,827 [7],[9],[15],[16]          
Cost         7,768 [5],[13],[14]     7,827 [9],[15],[16]          
Investments at fair value         7,768 [5],[13],[14]     7,827 [9],[15],[16]          
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[29]         1,309                
Cost [5],[29]         1,301                
Investments at fair value [5],[29]         1,309                
Investment, Identifier [Axis]: Brave Parent Holdings, Inc., First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6]         512                
Cost [5],[6]         516                
Investments at fair value [5],[6]         512                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               935          
Cost [9],[10],[12]               (4)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         125 [3],[5],[6],[11]     417 [7],[9],[10],[12]          
Cost         127 [5],[6],[11]     417 [9],[10],[12]          
Investments at fair value         125 [5],[6],[11]     417 [9],[10],[12]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         822 [3],[5],[6],[11]     1,847 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         811                
Cost [5],[6],[11]         (6)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         13,206 [3],[5],[13],[14]     13,206 [7],[9],[15],[16]          
Cost         13,175 [5],[13],[14]     13,170 [9],[15],[16]          
Investments at fair value         13,206 [5],[13],[14]     13,206 [9],[15],[16]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,879 [3],[5],[6],[17]     8,462 [7],[9],[10],[18]          
Cost         8,943 [5],[6],[17]     8,452 [9],[10],[18]          
Investments at fair value         8,879 [5],[6],[17]     8,462 [9],[10],[18]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,398 [3],[5],[13],[14]     3,398 [7],[9],[15],[16]          
Cost         3,394 [5],[13],[14]     3,394 [9],[15],[16]          
Investments at fair value         3,398 [5],[13],[14]     3,398 [9],[15],[16]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,025 [3],[5],[6],[17]     761 [7],[9],[15],[16]          
Cost         1,022 [5],[6],[17]     758 [9],[15],[16]          
Investments at fair value         1,025 [5],[6],[17]     761 [9],[15],[16]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 5                          
Schedule of Investments [Line Items]                          
Principal amount, par value         761 [3],[5],[13],[14]     341 [7],[9],[15],[16]          
Cost         759 [5],[13],[14]     340 [9],[15],[16]          
Investments at fair value         761 [5],[13],[14]     341 [9],[15],[16]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 6                          
Schedule of Investments [Line Items]                          
Principal amount, par value         341 [3],[5],[13],[14]     272 [7],[9],[15],[16]          
Cost         340 [5],[13],[14]     271 [9],[15],[16]          
Investments at fair value         341 [5],[13],[14]     272 [9],[15],[16]          
Investment, Identifier [Axis]: Bullhorn, Inc., First lien 7                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         272                
Cost [5],[13],[14]         271                
Investments at fair value [5],[13],[14]         272                
Investment, Identifier [Axis]: CB Buyer, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               3,308          
Cost [9],[15],[16]               3,293          
Investments at fair value [9],[15],[16]               3,292          
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               364          
Cost [9],[10],[12]               (2)          
Investments at fair value [9],[10],[12]               (2)          
Investment, Identifier [Axis]: CB Buyer, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               934          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               (5)          
Investment, Identifier [Axis]: CFS Management, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         11,997 [3],[5],[6],[17]     11,881 [7],[9],[15],[16]          
Cost         11,997 [5],[6],[17]     11,880 [9],[15],[16]          
Investments at fair value         10,497 [5],[6],[17]     10,693 [9],[15],[16]          
Investment, Identifier [Axis]: CFS Management, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,574 [3],[5],[13],[14]     3,539 [7],[9],[15],[16]          
Cost         3,583 [5],[13],[14]     3,548 [9],[15],[16]          
Investments at fair value         3,127 [5],[13],[14]     3,185 [9],[15],[16]          
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,559 [3],[5],[13],[14]     8,493 [7],[9],[15],[16]          
Cost         8,526 [5],[13],[14]     8,447 [9],[15],[16]          
Investments at fair value         8,559 [5],[13],[14]     8,449 [9],[15],[16]          
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,084 [3],[5],[6],[11],[17]     954 [7],[9],[10],[12],[18]          
Cost         1,072 [5],[6],[11],[17]     945 [9],[10],[12],[18]          
Investments at fair value         1,084 [5],[6],[11],[17]     950 [9],[10],[12],[18]          
Investment, Identifier [Axis]: CG Group Holdings, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         113 [3],[5],[6],[11]     226 [7],[9],[10],[12]          
Cost         (1) [5],[6],[11]     (3) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (1) [9],[10],[12]          
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,467 [3],[5],[13],[14]     6,516 [7],[9],[15],[16]          
Cost         6,438 [5],[13],[14]     6,484 [9],[15],[16]          
Investments at fair value         6,467 [5],[13],[14]     6,483 [9],[15],[16]          
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[18]               489          
Cost [9],[10],[12],[18]               486          
Investments at fair value [9],[10],[12],[18]               486          
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,629 [3],[5],[6],[11]     597 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     (3) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (3) [9],[10],[12]          
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,086 [3],[5],[6],[11]     1,629 [7],[9],[10],[12]          
Cost         (5) [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (8) [9],[10],[12]          
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               850          
Cost [9],[10],[12]               (6)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         637 [3],[6],[11]     637 [7],[9],[10],[12]          
Cost         633 [6],[11]     633 [9],[10],[12]          
Investments at fair value         637 [6],[11]     637 [9],[10],[12]          
Investment, Identifier [Axis]: Calabrio, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6],[11]         850                
Cost [6],[11]         (6)                
Investments at fair value [6],[11]         0                
Investment, Identifier [Axis]: Calabrio, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         12,193 [3],[29]     12,286 [7],[9],[28]          
Cost         12,164 [29]     12,244 [9],[28]          
Investments at fair value         12,193 [29]     12,286 [9],[28]          
Investment, Identifier [Axis]: Calabrio, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,562 [3],[29]     1,574 [7],[9],[28]          
Cost         1,554 [29]     1,562 [9],[28]          
Investments at fair value         1,562 [29]     1,574 [9],[28]          
Investment, Identifier [Axis]: Cardinal Parent, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         11,639 [3],[19]     11,730 [7],[20]          
Cost         11,607 [19]     11,689 [20]          
Investments at fair value         11,582 [19]     11,249 [20]          
Investment, Identifier [Axis]: Cardinal Parent, Inc., Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         9,767 [3],[5],[19]     9,767 [7],[9],[20]          
Cost         9,718 [5],[19]     9,709 [9],[20]          
Investments at fair value         9,757 [5],[19]     9,423 [9],[20]          
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         36,475 [3],[5],[13],[14]     35,797 [7],[9],[15],[16]          
Cost         36,124 [5],[13],[14]     35,399 [9],[15],[16]          
Investments at fair value         36,475 [5],[13],[14]     35,797 [9],[15],[16]          
Investment, Identifier [Axis]: CentralSquare Technologies, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,980 [3],[5],[6],[11]     3,980 [7],[9],[10],[12]          
Cost         (50) [5],[6],[11]     (50) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Ciklum Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16],[24]               9,536          
Cost [9],[15],[16],[24]               9,430          
Investments at fair value [9],[15],[16],[24]               9,536          
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[23]         2,989                
Cost [5],[6],[11],[23]         (37)                
Investments at fair value [5],[6],[11],[23]         0                
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               11,955          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Ciklum Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               2,989          
Cost [9],[10],[12]               (37)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Ciklum Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         9,464                
Cost [5],[13],[14]         9,371                
Investments at fair value [5],[13],[14]         9,464                
Investment, Identifier [Axis]: Ciklum Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         5,353                
Cost [5],[6],[17]         5,290                
Investments at fair value [5],[6],[17]         5,353                
Investment, Identifier [Axis]: Cleanova US Holdings, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14],[23]         8,406                
Cost [5],[13],[14],[23]         8,120                
Investments at fair value [5],[13],[14],[23]         8,406                
Investment, Identifier [Axis]: CommerceHub, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               3,920          
Cost [9],[10],[18]               3,608          
Investments at fair value [9],[10],[18]               3,920          
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         58                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         611                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (5)                
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17]         1,237                
Cost [5],[6],[11],[17]         1,225                
Investments at fair value [5],[6],[11],[17]         1,227                
Investment, Identifier [Axis]: Compsych Investments Corp., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,810 [3],[5],[13],[14]     1,164 [7],[9],[15],[16]          
Cost         7,758 [5],[13],[14]     1,162 [9],[15],[16]          
Investments at fair value         7,810 [5],[13],[14]     1,162 [9],[15],[16]          
Investment, Identifier [Axis]: Compsych Investments Corp., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,253 [3],[5],[6],[11]     333 [7],[9],[10],[12]          
Cost         (14) [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (1) [9],[10],[12]          
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         13,431 [3],[5],[6],[17]     13,152 [7],[9],[10],[18]          
Cost         13,388 [5],[6],[17]     13,101 [9],[10],[18]          
Investments at fair value         11,266 [5],[6],[17]     11,935 [9],[10],[18]          
Investment, Identifier [Axis]: Convey Health Solutions, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,243 [3],[5],[6],[17]     2,196 [7],[9],[10],[18]          
Cost         2,229 [5],[6],[17]     2,180 [9],[10],[18]          
Investments at fair value         1,881 [5],[6],[17]     1,993 [9],[10],[18]          
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,042 [3],[5],[6],[17]     1,050 [7],[9],[10],[18]          
Cost         1,037 [5],[6],[17]     1,045 [9],[10],[18]          
Investments at fair value         1,042 [5],[6],[17]     1,050 [9],[10],[18]          
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               578          
Cost [9],[10],[12]               (3)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         578                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         14,280 [3],[5],[6],[17]     14,388 [7],[9],[10],[18]          
Cost         14,152 [5],[6],[17]     14,243 [9],[10],[18]          
Investments at fair value         14,280 [5],[6],[17]     14,388 [9],[10],[18]          
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,291 [3],[5],[6],[11]     1,291 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Coupa Holdings, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         989 [3],[5],[6],[11]     989 [7],[9],[10],[12]          
Cost         (12) [5],[6],[11]     (12) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.), First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         19,259                
Cost [5],[6],[17]         19,138                
Investments at fair value [5],[6],[17]         19,259                
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.), First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         5,012                
Cost [5],[6],[17]         4,999                
Investments at fair value [5],[6],[17]         5,012                
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.), First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         4,913                
Cost [5],[13],[14]         4,882                
Investments at fair value [5],[13],[14]         4,913                
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.), First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         4,706                
Cost [5],[6],[17]         4,686                
Investments at fair value [5],[6],[17]         4,706                
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,839 [3],[5],[13],[14]     1,804 [7],[9],[15],[16]          
Cost         1,835 [5],[13],[14]     1,798 [9],[15],[16]          
Investments at fair value         1,621 [5],[13],[14]     1,758 [9],[15],[16]          
Investment, Identifier [Axis]: DCA Investment Holding, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,031 [3],[5],[6],[17]     1,011 [7],[9],[10],[18]          
Cost         1,022 [5],[6],[17]     1,000 [9],[10],[18]          
Investments at fair value         912 [5],[6],[17]     987 [9],[10],[18]          
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc., Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         9,512 [3],[5],[6],[17]     20,313 [7],[10],[18]          
Cost         9,465 [5],[6],[17]     20,280 [10],[18]          
Investments at fair value         9,464 [5],[6],[17]     20,281 [10],[18]          
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,405 [3],[5],[6],[11]     2,405 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (13) [9],[10],[12]          
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         18,196 [3],[5],[6],[17]     18,337 [7],[9],[10],[18]          
Cost         18,196 [5],[6],[17]     18,337 [9],[10],[18]          
Investments at fair value         18,196 [5],[6],[17]     18,236 [9],[10],[18]          
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,814 [3],[5],[19]     6,867 [7],[9],[20]          
Cost         6,814 [5],[19]     6,867 [9],[20]          
Investments at fair value         6,814 [5],[19]     6,829 [9],[20]          
Investment, Identifier [Axis]: DOCS, MSO, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         3,363                
Cost [5],[6],[17]         3,342                
Investments at fair value [5],[6],[17]         3,363                
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,046 [3],[5],[6],[11]     3,046 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: DT1 Midco Corp, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         1,345                
Cost [5],[13],[14]         1,338                
Investments at fair value [5],[13],[14]         1,338                
Investment, Identifier [Axis]: DT1 Midco Corp, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         32                
Cost [5],[6],[11]         32                
Investments at fair value [5],[6],[11]         32                
Investment, Identifier [Axis]: DT1 Midco Corp, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         674                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         (3)                
Investment, Identifier [Axis]: DT1 Midco Corp, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         4,462                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (22)                
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         986 [3],[5],[6],[11]     986 [7],[9],[10],[12]          
Cost         (10) [5],[6],[11]     (10) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         12,779 [3],[5],[6],[17]     12,878 [7],[9],[10],[18]          
Cost         12,714 [5],[6],[17]     12,799 [9],[10],[18]          
Investments at fair value         12,779 [5],[6],[17]     12,878 [9],[10],[18]          
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,077 [3],[5],[13],[14]     1,085 [7],[9],[15],[16]          
Cost         1,071 [5],[13],[14]     1,078 [9],[15],[16]          
Investments at fair value         1,077 [5],[13],[14]     1,085 [9],[15],[16]          
Investment, Identifier [Axis]: Daxko Acquisition Corporation, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         64 [3],[5],[6]     65 [7],[9],[10]          
Cost         64 [5],[6]     64 [9],[10]          
Investments at fair value         64 [5],[6]     $ 65 [9],[10]          
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC, Preferred Shares                          
Schedule of Investments [Line Items]                          
Principal amount, par value         $ 84,739                
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC, Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         56,271 [3],[5],[6],[17],[30] 56,271 [3],[5],[6],[17],[30] 56,271 [3],[5],[6],[17],[30] 56,271 [7],[9],[10],[18] 56,271 [7],[9],[10],[18]        
Cost         $ 75,927 [5],[6],[17],[30]     $ 75,927 [9],[10],[18]          
Investments at fair value         81,078 [5],[6],[17],[30]     79,222 [9],[10],[18]          
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[18]               3,027          
Cost [9],[10],[12],[18]               2,997          
Investments at fair value [9],[10],[12],[18]               2,987          
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17]         3,027                
Cost [5],[6],[11],[17]         2,997                
Investments at fair value [5],[6],[11],[17]         2,947                
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         36,806 [3],[5],[13],[14]     37,094 [7],[9],[15],[16]          
Cost         36,624 [5],[13],[14]     36,871 [9],[15],[16]          
Investments at fair value         35,834 [5],[13],[14]     36,604 [9],[15],[16]          
Investment, Identifier [Axis]: Deca Dental Holdings LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,874 [3],[5],[6],[17]     3,905 [7],[9],[10],[18]          
Cost         3,854 [5],[6],[17]     3,880 [9],[10],[18]          
Investments at fair value         3,772 [5],[6],[17]     3,853 [9],[10],[18]          
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         9,091                
Cost [5],[13],[14]         9,046                
Investments at fair value [5],[13],[14]         9,045                
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         909                
Cost [5],[6],[11]         (5)                
Investments at fair value [5],[6],[11]         (5)                
Investment, Identifier [Axis]: Digicert, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,119                
Cost [5],[6],[11]         (8)                
Investments at fair value [5],[6],[11]         (8)                
Investment, Identifier [Axis]: Digicert, Inc.., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         15,500                
Cost [5],[13],[14]         15,387                
Investments at fair value [5],[13],[14]         15,384                
Investment, Identifier [Axis]: Diligent Corporation, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         249                
Cost [5],[6],[11]         248                
Investments at fair value [5],[6],[11]         249                
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,016 [3],[5],[6],[11]     2,265 [7],[9],[10],[12]          
Cost         (8) [5],[6],[11]     (8) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Diligent Corporation, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,398 [3],[5],[6],[11]     3,398 [7],[9],[10],[12]          
Cost         (13) [5],[6],[11]     (13) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Diligent Corporation, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         19,821 [3],[5],[13],[14]     19,821 [7],[9],[15],[16]          
Cost         19,760 [5],[13],[14]     19,753 [9],[15],[16]          
Investments at fair value         19,821 [5],[13],[14]     19,821 [9],[15],[16]          
Investment, Identifier [Axis]: Diligent Corporation, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,398 [3],[5],[6],[17]     3,398 [7],[9],[10],[18]          
Cost         3,387 [5],[6],[17]     3,386 [9],[10],[18]          
Investments at fair value         $ 3,398 [5],[6],[17]     $ 3,398 [9],[10],[18]          
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc., Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         10,000 [3],[5],[6],[31] 10,000 [3],[5],[6],[31] 10,000 [3],[5],[6],[31] 10,000 [7],[9],[10],[32] 10,000 [7],[9],[10],[32]        
Principal amount, par value         $ 15,827                
Cost         15,702 [5],[6],[31]     $ 14,162 [9],[10],[32]          
Investments at fair value         15,036 [5],[6],[31]     13,609 [9],[10],[32]          
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,628 [3],[5],[13],[14],[33]     10,628 [7],[9],[15],[16],[34]          
Cost         10,628 [5],[13],[14],[33]     10,628 [9],[15],[16],[34]          
Investments at fair value         10,628 [5],[13],[14],[33]     10,628 [9],[15],[16],[34]          
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.), First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         340 [3],[5],[6],[33]     340 [7],[9],[10],[34]          
Cost         340 [5],[6],[33]     340 [9],[10],[34]          
Investments at fair value         $ 340 [5],[6],[33]     $ 340 [9],[10],[34]          
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC, Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         72,536 [3],[5],[6],[33] 72,536 [3],[5],[6],[33] 72,536 [3],[5],[6],[33] 72,536 [7],[9],[10],[34] 72,536 [7],[9],[10],[34]        
Cost         $ 4,104 [5],[6],[33]     $ 4,104 [9],[10],[34]          
Investments at fair value         7,368 [5],[6],[33]     8,188 [9],[10],[34]          
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,113 [3],[5],[19],[35]     7,113 [7],[9],[20],[36]          
Cost         7,081 [5],[19],[35]     7,078 [9],[20],[36]          
Investments at fair value         7,113 [5],[19],[35]     7,078 [9],[20],[36]          
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,206 [3],[5],[11],[19]     1,206 [7],[9],[12],[20]          
Cost         0 [5],[11],[19]     0 [9],[12],[20]          
Investments at fair value         0 [5],[11],[19]     (6) [9],[12],[20]          
Investment, Identifier [Axis]: Eclipse Buyer Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,190 [3],[5],[6],[11]     4,190 [7],[9],[10],[12]          
Cost         (21) [5],[6],[11]     (21) [9],[10],[12]          
Investments at fair value         $ 0 [5],[6],[11]     $ (21) [9],[10],[12]          
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         290 [3],[5],[6] 290 [3],[5],[6] 290 [3],[5],[6] 290 [7],[9],[10] 290 [7],[9],[10]        
Cost         $ 145 [5],[6]     $ 145 [9],[10]          
Investments at fair value         $ 305 [5],[6]     $ 305 [9],[10]          
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Preferred shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10]               2,900 2,900        
Cost [9],[10]               $ 2,900          
Investments at fair value [9],[10]               $ 2,900          
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Preferred shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10]               3,691 3,691        
Cost [9],[10]               $ 2,565          
Investments at fair value [9],[10]               $ 2,702          
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Series A preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6]         2,900 2,900 2,900            
Principal amount, par value         $ 3,335                
Cost [5],[6]         3,335                
Investments at fair value [5],[6]         $ 3,335                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.), Series B preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6]         3,691 3,691 3,691            
Principal amount, par value         $ 4,116                
Cost [5],[6]         2,565                
Investments at fair value [5],[6]         2,703                
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc., Junior preferred shares, Non-accrual status                          
Schedule of Investments [Line Items]                          
Cost         2,565                
Investments at fair value         $ 2,703                
Investment, Identifier [Axis]: Eclipse Topco, Inc., Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         190 [3],[5],[19],[35] 190 [3],[5],[19],[35] 190 [3],[5],[19],[35] 190 [7],[9],[20],[36] 190 [7],[9],[20],[36]        
Principal amount, par value         $ 2,094                
Cost         2,075 [5],[19],[35]     $ 1,952 [9],[20],[36]          
Investments at fair value         2,094 [5],[19],[35]     1,952 [9],[20],[36]          
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC, Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value         25,465 [3],[5],[6],[33],[37]     22,290 [7],[9],[10],[34]          
Cost         25,410 [5],[6],[33],[37]     22,223 [9],[10],[34]          
Investments at fair value         25,465 [5],[6],[33],[37]     22,290 [9],[10],[34]          
Investment, Identifier [Axis]: Einstein Parent, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         55,582                
Cost [5],[6],[17]         55,074                
Investments at fair value [5],[6],[17]         55,026                
Investment, Identifier [Axis]: Einstein Parent, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         5,750                
Cost [5],[6],[11]         (57)                
Investments at fair value [5],[6],[11]         (57)                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[38]               1,400          
Cost [9],[10],[12],[38]               (14)          
Investments at fair value [9],[10],[12],[38]               0          
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         909                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[11],[29]         2,723                
Cost [5],[11],[29]         0                
Investments at fair value [5],[11],[29]         0                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien - Undrawn 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,400                
Cost [5],[6],[11]         (14)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,475 [3],[5],[29]     10,185 [7],[9],[28]          
Cost         8,434 [5],[29]     10,127 [9],[28]          
Investments at fair value         8,475 [5],[29]     10,185 [9],[28]          
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,725 [3],[5],[6],[17]     5,677 [7],[9],[10],[18]          
Cost         4,695 [5],[6],[17]     5,636 [9],[10],[18]          
Investments at fair value         4,725 [5],[6],[17]     5,677 [9],[10],[18]          
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,845 [3],[5],[29]     3,419 [7],[9],[28]          
Cost         2,830 [5],[29]     3,398 [9],[28]          
Investments at fair value         2,845 [5],[29]     3,419 [9],[28]          
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC, First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,827 [3],[5],[29]     3,397 [7],[9],[28]          
Cost         2,813 [5],[29]     3,378 [9],[28]          
Investments at fair value         $ 2,827 [5],[29]     $ 3,397 [9],[28]          
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC, Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         50,000 [3],[5],[29],[39] 50,000 [3],[5],[29],[39] 50,000 [3],[5],[29],[39] 50,000 [7],[9],[28],[38] 50,000 [7],[9],[28],[38]        
Cost         $ 5,000 [5],[29],[39]     $ 5,000 [9],[28],[38]          
Investments at fair value         5,000 [5],[29],[39]     4,618 [9],[28],[38]          
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         8,150                
Cost [5],[6],[17]         8,131                
Investments at fair value [5],[6],[17]         8,130                
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         733                
Cost [5],[6],[11]         731                
Investments at fair value [5],[6],[11]         731                
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,422                
Cost [5],[6],[11]         (4)                
Investments at fair value [5],[6],[11]         (4)                
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         4,005                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         $ (10)                
Investment, Identifier [Axis]: Firebird Co-Invest L.P., LP Interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[40]         3,358,474 3,358,474 3,358,474            
Cost [5],[6],[40]         $ 3,358                
Investments at fair value [5],[6],[40]         3,358                
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.), Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[19]         10,719                
Cost [5],[19]         10,640                
Investments at fair value [5],[19]         9,248                
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.), Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         1,429                
Cost [5],[6],[17]         1,425                
Investments at fair value [5],[6],[17]         1,233                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         386                
Cost [5],[6],[11]         383                
Investments at fair value [5],[6],[11]         386                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         277                
Cost [5],[6],[11]         277                
Investments at fair value [5],[6],[11]         277                
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,924 [3],[5],[6],[11]     3,312 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,034 [3],[5],[6],[11]     2,095 [7],[9],[10],[12]          
Cost         (20) [5],[6],[11]     (21) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         36,905 [3],[5],[13],[14]     33,356 [7],[9],[15],[16]          
Cost         36,761 [5],[13],[14]     33,163 [9],[15],[16]          
Investments at fair value         36,905 [5],[13],[14]     33,356 [9],[15],[16]          
Investment, Identifier [Axis]: Foreside Financial Group, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,043 [3],[5],[6],[17]     4,075 [7],[9],[10],[18]          
Cost         4,019 [5],[6],[17]     4,041 [9],[10],[18]          
Investments at fair value         4,043 [5],[6],[17]     4,075 [9],[10],[18]          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17]         715                
Cost [5],[6],[11],[17]         708                
Investments at fair value [5],[6],[11],[17]         715                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,001          
Cost [9],[10],[12]               990          
Investments at fair value [9],[10],[12]               1,001          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               342          
Cost [9],[10],[12]               343          
Investments at fair value [9],[10],[12]               342          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         2,145                
Cost [5],[6],[11]         (21)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               3,360          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,859          
Cost [9],[10],[12]               (19)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         17,043 [3],[5],[13],[14]     17,176 [7],[9],[15],[16]          
Cost         16,953 [5],[13],[14]     17,066 [9],[15],[16]          
Investments at fair value         17,043 [5],[13],[14]     17,176 [9],[15],[16]          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         12,267 [3],[5],[6],[17]     12,020 [7],[9],[10],[18]          
Cost         12,206 [5],[6],[17]     11,946 [9],[10],[18]          
Investments at fair value         12,267 [5],[6],[17]     12,020 [9],[10],[18]          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         974 [3],[5],[6],[17]     80 [7],[9],[10]          
Cost         976 [5],[6],[17]     79 [9],[10]          
Investments at fair value         974 [5],[6],[17]     80 [9],[10]          
Investment, Identifier [Axis]: Fortis Solutions Group, LLC, First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6]         79                
Cost [5],[6]         79                
Investments at fair value [5],[6]         79                
Investment, Identifier [Axis]: Foundational Education Group, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         6,367                
Cost [13],[14]         5,847                
Investments at fair value [13],[14]         5,683                
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,500 [3],[5],[29]     22,500 [7],[9],[28]          
Cost         22,433 [5],[29]     22,423 [9],[28]          
Investments at fair value         22,500 [5],[29]     22,500 [9],[28]          
Investment, Identifier [Axis]: Foundational Education Group, Inc., Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,965 [3],[5],[6],[17]     7,009 [7],[9],[15],[16]          
Cost         10,742 [5],[6],[17]     6,992 [9],[15],[16]          
Investments at fair value         10,965 [5],[6],[17]     7,009 [9],[15],[16]          
Investment, Identifier [Axis]: Fullsteam Operations LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         6,223                
Cost [5],[13],[14]         6,192                
Investments at fair value [5],[13],[14]         6,192                
Investment, Identifier [Axis]: Fullsteam Operations LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         2,074                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Fullsteam Operations LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         691                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         (3)                
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,951 [3],[5],[6],[11]     3,951 [7],[9],[10],[12]          
Cost         (30) [5],[6],[11]     (30) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         40,009 [3],[5],[13],[14]     40,312 [7],[9],[15],[16]          
Cost         39,806 [5],[13],[14]     40,084 [9],[15],[16]          
Investments at fair value         40,009 [5],[13],[14]     40,312 [9],[15],[16]          
Investment, Identifier [Axis]: GC Waves Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         21,287 [3],[5],[29]     21,448 [7],[9],[28]          
Cost         21,232 [5],[29]     21,386 [9],[28]          
Investments at fair value         $ 21,287 [5],[29]     $ 21,448 [9],[28]          
Investment, Identifier [Axis]: GEDC Equity, LLC, Participation Interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         190,000 [3],[5],[6] 190,000 [3],[5],[6] 190,000 [3],[5],[6] 190,000 [7],[9],[10] 190,000 [7],[9],[10]        
Cost         $ 190 [5],[6]     $ 190 [9],[10]          
Investments at fair value         50 [5],[6]     50 [9],[10]          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               319          
Cost [9],[10],[12]               319          
Investments at fair value [9],[10],[12]               319          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,607                
Cost [5],[6],[11]         1,601                
Investments at fair value [5],[6],[11]         1,607                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         450                
Cost [5],[6],[11]         448                
Investments at fair value [5],[6],[11]         450                
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         759 [3],[5],[6],[11]     1,120 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,214 [3],[5],[6],[11]     4,821 [7],[9],[10],[12]          
Cost         (20) [5],[6],[11]     (26) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         25,145 [3],[5],[13],[14]     34,719 [7],[9],[15],[16]          
Cost         25,113 [5],[13],[14]     34,663 [9],[15],[16]          
Investments at fair value         25,145 [5],[13],[14]     34,719 [9],[15],[16]          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         21,130 [3],[5],[29]     21,297 [7],[9],[28]          
Cost         21,102 [5],[29]     21,263 [9],[28]          
Investments at fair value         21,130 [5],[29]     21,297 [9],[28]          
Investment, Identifier [Axis]: GS Acquisitionco, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,886 [3],[5],[6],[17]     2,909 [7],[9],[10],[18]          
Cost         2,881 [5],[6],[17]     2,902 [9],[10],[18]          
Investments at fair value         2,886 [5],[6],[17]     2,909 [9],[10],[18]          
Investment, Identifier [Axis]: Galway Borrower LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,081 [3],[5],[13],[14]     1,090 [7],[9],[15],[16]          
Cost         1,076 [5],[13],[14]     1,083 [9],[15],[16]          
Investments at fair value         1,081 [5],[13],[14]     1,080 [9],[15],[16]          
Investment, Identifier [Axis]: Galway Borrower LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,792 [3],[5],[6],[11],[17]     1,806 [7],[9],[10],[12]          
Cost         1,768 [5],[6],[11],[17]     1,779 [9],[10],[12]          
Investments at fair value         1,792 [5],[6],[11],[17]     1,788 [9],[10],[12]          
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               17,901          
Cost [9],[15],[16]               17,858          
Investments at fair value [9],[15],[16]               17,856          
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               448          
Cost [9],[10],[12]               445          
Investments at fair value [9],[10],[12]               446          
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,682          
Cost [9],[10],[12]               (4)          
Investments at fair value [9],[10],[12]               (4)          
Investment, Identifier [Axis]: GraphPAD Software, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               4,038          
Cost [9],[10],[12]               (10)          
Investments at fair value [9],[10],[12]               (10)          
Investment, Identifier [Axis]: Greenway Health, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,254 [3],[5],[6],[17]     6,302 [7],[9],[10],[18]          
Cost         6,186 [5],[6],[17]     6,221 [9],[10],[18]          
Investments at fair value         $ 6,254 [5],[6],[17]     6,302 [9],[10],[18]          
Investment, Identifier [Axis]: Groundworks, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[20]               18,908          
Cost [20]               18,734          
Investments at fair value [20]               19,034          
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[12],[20]               557          
Cost [12],[20]               552          
Investments at fair value [12],[20]               560          
Investment, Identifier [Axis]: Groundworks, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[12],[20]               2,938          
Cost [12],[20]               (15)          
Investments at fair value [12],[20]               $ 20          
Investment, Identifier [Axis]: HBWM Holdings, LLC, Common units                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[41],[42]         47,114 47,114 47,114            
Cost [5],[41],[42]         $ 4,767                
Investments at fair value [5],[41],[42]         9,564                
Investment, Identifier [Axis]: HBWM Holdings, LLC, Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[43]               47,114 47,114        
Cost [9],[43]               $ 4,717          
Investments at fair value [9],[43]               9,532          
Investment, Identifier [Axis]: HBWM Holdings, LLC.                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,767                
Investment, Identifier [Axis]: HP TLE Buyer, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6]         8,168                
Cost [5],[6]         8,128                
Investments at fair value [5],[6]         8,127                
Investment, Identifier [Axis]: HP TLE Buyer, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,797                
Cost [5],[6],[11]         (9)                
Investments at fair value [5],[6],[11]         (9)                
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,500 [3],[5],[29]     22,500 [7],[28]          
Cost         22,441 [5],[29]     22,441 [28]          
Investments at fair value         19,384 [5],[29]     14,513 [28]          
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc., Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,208 [3],[5],[13],[14]     4,208 [7],[15],[16]          
Cost         4,188 [5],[13],[14]     4,188 [15],[16]          
Investments at fair value         3,625 [5],[13],[14]     2,714 [15],[16]          
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,031 [3],[5],[6],[17]     5,069 [7],[9],[10],[18]          
Cost         4,991 [5],[6],[17]     5,025 [9],[10],[18]          
Investments at fair value         5,031 [5],[6],[17]     5,069 [9],[10],[18]          
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,229                
Cost [5],[6],[11]         (12)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Healthspan Buyer, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,229          
Cost [9],[10],[12]               (12)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,779 [3],[5],[6],[17]     3,808 [7],[9],[10],[18]          
Cost         3,779 [5],[6],[17]     3,808 [9],[10],[18]          
Investments at fair value         3,779 [5],[6],[17]     3,808 [9],[10],[18]          
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,556 [3],[5],[6],[11]     2,313 [7],[9],[10],[12]          
Cost         4,537 [5],[6],[11]     2,302 [9],[10],[12]          
Investments at fair value         4,556 [5],[6],[11]     2,313 [9],[10],[12]          
Investment, Identifier [Axis]: Higginbotham Insurance Agency, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,402 [3],[5],[6],[11]     5,676 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         14,373 [3],[6],[17]     14,484 [7],[10],[18]          
Cost         14,059 [6],[17]     14,108 [10],[18]          
Investments at fair value         12,917 [6],[17]     14,291 [10],[18]          
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,780 [3],[5],[6],[11]     3,780 [7],[9],[10],[12]          
Cost         (38) [5],[6],[11]     (38) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         32,553 [3],[5],[13],[14]     32,799 [7],[9],[15],[16]          
Cost         32,399 [5],[13],[14]     32,611 [9],[15],[16]          
Investments at fair value         32,553 [5],[13],[14]     32,799 [9],[15],[16]          
Investment, Identifier [Axis]: IG Investments Holdings, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,523 [3],[5],[6],[17]     2,542 [7],[9],[10],[18]          
Cost         2,523 [5],[6],[17]     2,540 [9],[10],[18]          
Investments at fair value         2,523 [5],[6],[17]     2,542 [9],[10],[18]          
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,422 [3],[5],[6]     8,696 [7],[9],[10],[18]          
Cost         8,357 [5],[6]     8,619 [9],[10],[18]          
Investments at fair value         8,422 [5],[6]     8,696 [9],[10],[18]          
Investment, Identifier [Axis]: Icefall Parent, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         828 [3],[5],[6],[11]     828 [7],[9],[10],[12]          
Cost         (8) [5],[6],[11]     (8) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Idera, Inc., Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[20]               15,091          
Cost [9],[20]               14,961          
Investments at fair value [9],[20]               15,091          
Investment, Identifier [Axis]: Idera, Inc., Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               2,012          
Cost [9],[10],[18]               2,006          
Investments at fair value [9],[10],[18]               2,012          
Investment, Identifier [Axis]: Infogain Corporation, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,827 [3],[5],[6],[11]     3,827 [7],[9],[10],[12]          
Cost         (29) [5],[6],[11]     (29) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Infogain Corporation, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         18,372 [3],[5],[13],[14]     18,372 [7],[9],[15],[16]          
Cost         18,305 [5],[13],[14]     18,291 [9],[15],[16]          
Investments at fair value         18,372 [5],[13],[14]     18,372 [9],[15],[16]          
Investment, Identifier [Axis]: Infogain Corporation, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,704 [3],[5],[6],[17]     7,764 [7],[9],[10],[18]          
Cost         7,663 [5],[6],[17]     7,713 [9],[10],[18]          
Investments at fair value         7,704 [5],[6],[17]     7,764 [9],[10],[18]          
Investment, Identifier [Axis]: Infogain Corporation, Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value         16,953 [3],[5],[6]     16,953 [7],[9],[10]          
Cost         16,816 [5],[6]     16,795 [9],[10]          
Investments at fair value         16,953 [5],[6]     16,953 [9],[10]          
Investment, Identifier [Axis]: Integro Parent Inc., Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18],[24]               7,091          
Cost [9],[10],[18],[24]               6,405          
Investments at fair value [9],[10],[18],[24]               $ 6,331          
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd, Structured Finance Obligation                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[23]         3,232                
Cost [5],[6],[23]         3,232                
Investments at fair value [5],[6],[23]         3,257                
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd, Structured Finance Obligations                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[10],[24]               3,232 3,232        
Cost [10],[24]               $ 3,232          
Investments at fair value [10],[24]               3,232          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               19          
Cost [9],[10],[12]               19          
Investments at fair value [9],[10],[12]               18          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,568          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               (47)          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,774 [3],[5],[6],[17]     6,827 [7],[9],[10],[18]          
Cost         6,739 [5],[6],[17]     6,785 [9],[10],[18]          
Investments at fair value         6,283 [5],[6],[17]     6,570 [9],[10],[18]          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,140 [3],[5],[6],[17]     1,149 [7],[9],[10],[18]          
Cost         1,133 [5],[6],[17]     1,140 [9],[10],[18]          
Investments at fair value         1,057 [5],[6],[17]     1,106 [9],[10],[18]          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         776 [3],[5],[6],[17]     782 [7],[9],[10],[18]          
Cost         772 [5],[6],[17]     777 [9],[10],[18]          
Investments at fair value         720 [5],[6],[17]     752 [9],[10],[18]          
Investment, Identifier [Axis]: KPSKY Acquisition Inc., First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6]         19                
Cost [5],[6]         18                
Investments at fair value [5],[6]         17                
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[18]               973          
Cost [9],[10],[12],[18]               966          
Investments at fair value [9],[10],[12],[18]               973          
Investment, Identifier [Axis]: Kaseya Inc., First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               751          
Cost [9],[10],[12]               746          
Investments at fair value [9],[10],[12]               751          
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               2,865          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Kaseya Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               2,888          
Cost [9],[10],[12]               (22)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Kaseya Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               64,124          
Cost [9],[15],[16]               63,786          
Investments at fair value [9],[15],[16]               64,124          
Investment, Identifier [Axis]: Kaseya Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               238          
Cost [9],[10],[18]               237          
Investments at fair value [9],[10],[18]               238          
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17]         990                
Cost [5],[6],[11],[17]         985                
Investments at fair value [5],[6],[11],[17]         990                
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         810 [3],[5],[6],[11]     1,799 [7],[9],[10],[12]          
Cost         (4) [5],[6],[11]     (9) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         14,513 [3],[5],[29]     14,635 [7],[9],[28]          
Cost         14,500 [5],[29]     14,617 [9],[28]          
Investments at fair value         14,513 [5],[29]     14,635 [9],[28]          
Investment, Identifier [Axis]: Kele Holdco, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,248 [3],[5],[29]     2,268 [7],[9],[28]          
Cost         1,242 [5],[29]     2,254 [9],[28]          
Investments at fair value         1,248 [5],[29]     2,268 [9],[28]          
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,483 [3],[5],[13],[14]     3,509 [7],[9],[15],[16]          
Cost         3,454 [5],[13],[14]     3,477 [9],[15],[16]          
Investments at fair value         3,483 [5],[13],[14]     3,509 [9],[15],[16]          
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         161 [3],[5],[6],[11]     162 [7],[9],[10],[12]          
Cost         160 [5],[6],[11]     161 [9],[10],[12]          
Investments at fair value         161 [5],[6],[11]     162 [9],[10],[12]          
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,398 [3],[5],[6],[11]     1,398 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Kene Acquisition, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         468 [3],[5],[6],[11]     468 [7],[9],[10],[12]          
Cost         (5) [5],[6],[11]     (5) [9],[10],[12]          
Investments at fair value         $ 0 [5],[6],[11]     $ 0 [9],[10],[12]          
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc., Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         8,313 [3],[5],[6],[44] 8,313 [3],[5],[6],[44] 8,313 [3],[5],[6],[44] 15,150 [7],[9],[10],[45] 15,150 [7],[9],[10],[45]        
Principal amount, par value         $ 12,400                
Cost         12,324 [5],[6],[44]     $ 20,819 [9],[10],[45]          
Investments at fair value         12,400 [5],[6],[44]     21,010 [9],[10],[45]          
Investment, Identifier [Axis]: LSCS Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         5,155                
Cost [13],[14]         5,056                
Investments at fair value [13],[14]         5,086                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,206 [3],[5],[29]     6,124 [7],[9],[28]          
Cost         6,153 [5],[29]     6,065 [9],[28]          
Investments at fair value         6,206 [5],[29]     6,062 [9],[28]          
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               72          
Cost [9],[10],[12]               71          
Investments at fair value [9],[10],[12]               71          
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[11],[29]         221                
Cost [5],[11],[29]         219                
Investments at fair value [5],[11],[29]         221                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         72                
Cost [5],[6],[11]         71                
Investments at fair value [5],[6],[11]         72                
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         136 [3],[5],[11],[29]     358 [7],[9],[12],[28]          
Cost         0 [5],[11],[29]     0 [9],[12],[28]          
Investments at fair value         0 [5],[11],[29]     (4) [9],[12],[28]          
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         644 [3],[5],[6],[11]     644 [7],[9],[10],[12]          
Cost         (6) [5],[6],[11]     (6) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (6) [9],[10],[12]          
Investment, Identifier [Axis]: Logrhythm, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,196 [3],[5],[6]     4,196 [7],[9],[10],[18]          
Cost         4,145 [5],[6]     4,138 [9],[10],[18]          
Investments at fair value         4,047 [5],[6]     4,196 [9],[10],[18]          
Investment, Identifier [Axis]: Logrhythm, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         420 [3],[5],[6],[11]     420 [7],[9],[10],[12]          
Cost         (6) [5],[6],[11]     (6) [9],[10],[12]          
Investments at fair value         (15) [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Low Voltage Holdings Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         16,902                
Cost [5],[6],[17]         16,841                
Investments at fair value [5],[6],[17]         16,839                
Investment, Identifier [Axis]: Low Voltage Holdings Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         819                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         (3)                
Investment, Identifier [Axis]: Low Voltage Holdings Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         2,317                
Cost [5],[6],[11]         (9)                
Investments at fair value [5],[6],[11]         (9)                
Investment, Identifier [Axis]: Low Voltage Holdings Inc., First lien - Undrawn 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         5,257                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (19)                
Investment, Identifier [Axis]: MRI Software LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         200 [3],[5],[6],[11]     111 [7],[9],[10],[12]          
Cost         199 [5],[6],[11]     111 [9],[10],[12]          
Investments at fair value         200 [5],[6],[11]     111 [9],[10],[12]          
Investment, Identifier [Axis]: MRI Software LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,802 [3],[5],[6],[11]     1,891 [7],[9],[10],[12]          
Cost         (9) [5],[6],[11]     (9) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: MRI Software LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         21,261 [3],[5],[29]     21,430 [7],[9],[28]          
Cost         21,240 [5],[29]     21,398 [9],[28]          
Investments at fair value         21,261 [5],[29]     21,430 [9],[28]          
Investment, Identifier [Axis]: MRI Software LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,532 [3],[5],[6],[17]     7,591 [7],[9],[10],[18]          
Cost         7,524 [5],[6],[17]     7,580 [9],[10],[18]          
Investments at fair value         7,532 [5],[6],[17]     7,591 [9],[10],[18]          
Investment, Identifier [Axis]: MRI Software LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,486 [3],[5],[13],[14]     4,521 [7],[9],[15],[16]          
Cost         4,483 [5],[13],[14]     4,516 [9],[15],[16]          
Investments at fair value         4,486 [5],[13],[14]     4,521 [9],[15],[16]          
Investment, Identifier [Axis]: MRI Software LLC, First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,083 [3],[5],[13],[14]     3,107 [7],[9],[15],[16]          
Cost         3,080 [5],[13],[14]     3,103 [9],[15],[16]          
Investments at fair value         3,083 [5],[13],[14]     3,107 [9],[15],[16]          
Investment, Identifier [Axis]: MRI Software LLC, First lien 5                          
Schedule of Investments [Line Items]                          
Principal amount, par value         787 [3],[5],[6],[17]     793 [7],[9],[10],[18]          
Cost         786 [5],[6],[17]     792 [9],[10],[18]          
Investments at fair value         787 [5],[6],[17]     793 [9],[10],[18]          
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         55                
Cost [5],[6],[11]         55                
Investments at fair value [5],[6],[11]         55                
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         3,692                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         252                
Cost [5],[6],[11]         (1)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Michael Baker International, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[10],[18]               4,892          
Cost [10],[18]               4,869          
Investments at fair value [10],[18]               4,910          
Investment, Identifier [Axis]: Model N, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               44,218          
Cost [9],[15],[16]               44,008          
Investments at fair value [9],[15],[16]               43,997          
Investment, Identifier [Axis]: Model N, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         43,885                
Cost [5],[13],[14]         43,696                
Investments at fair value [5],[13],[14]         43,885                
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         9,047 [3],[5],[6],[11]     4,825 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     (24) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (24) [9],[10],[12]          
Investment, Identifier [Axis]: Model N, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,825 [3],[5],[6],[11]     9,047 [7],[9],[10],[12]          
Cost         (24) [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (45) [9],[10],[12]          
Investment, Identifier [Axis]: NC Topco, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,877 [3],[5],[13],[14]     5,853 [7],[9],[15],[16]          
Cost         5,851 [5],[13],[14]     5,825 [9],[15],[16]          
Investments at fair value         5,877 [5],[13],[14]     5,824 [9],[15],[16]          
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,672 [3],[5],[6],[11]     669 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     (3) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     (3) [9],[10],[12]          
Investment, Identifier [Axis]: NC Topco, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         669 [3],[5],[6],[11]     1,672 [7],[9],[10],[12]          
Cost         (3) [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         $ 0 [5],[6],[11]     $ (8) [9],[10],[12]          
Investment, Identifier [Axis]: NHME Holdings Corp., Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         640,000 [3],[5],[6],[46],[47] 640,000 [3],[5],[6],[46],[47] 640,000 [3],[5],[6],[46],[47] 640,000 [7],[9],[10],[48],[49] 640,000 [7],[9],[10],[48],[49]        
Cost         $ 4,000 [5],[6],[46],[47]     $ 4,000 [9],[10],[48],[49]          
Investments at fair value         $ 0 [5],[6],[46],[47]     $ 0 [9],[10],[48],[49]          
Investment, Identifier [Axis]: NHME Holdings Corp., Warrants                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         160,000 [3],[5],[6],[46],[47] 160,000 [3],[5],[6],[46],[47] 160,000 [3],[5],[6],[46],[47] 160,000 [7],[9],[10],[48],[49] 160,000 [7],[9],[10],[48],[49]        
Cost         $ 1,000 [5],[6],[46],[47]     $ 1,000 [9],[10],[48],[49]          
Investments at fair value         $ 0 [5],[6],[46],[47]     $ 0 [9],[10],[48],[49]          
Investment, Identifier [Axis]: NM GP Holdco, LLC, Membership interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         0 [3],[5],[23],[47],[50] 0 [3],[5],[23],[47],[50] 0 [3],[5],[23],[47],[50] 0 [7],[9],[24],[49],[51] 0 [7],[9],[24],[49],[51]        
Cost         $ 850 [5],[23],[47],[50]     $ 850 [9],[24],[49],[51]          
Investments at fair value         $ 393 [5],[23],[47],[50]     $ 322 [9],[24],[49],[51]          
Investment, Identifier [Axis]: NM NL Holdings, L.P., Membership interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         0 [3],[5],[23],[47],[50] 0 [3],[5],[23],[47],[50] 0 [3],[5],[23],[47],[50] 0 [7],[9],[24],[49],[51] 0 [7],[9],[24],[49],[51]        
Cost         $ 74,248 [5],[23],[47],[50]     $ 74,248 [9],[24],[49],[51]          
Investments at fair value         $ 105,878 [5],[23],[47],[50]     $ 104,512 [9],[24],[49],[51]          
Investment, Identifier [Axis]: NM YI, LLC, Membership interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         0 [3],[5],[47],[50] 0 [3],[5],[47],[50] 0 [3],[5],[47],[50] 0 [7],[9],[49],[51] 0 [7],[9],[49],[51]        
Cost         $ 6,272 [5],[47],[50]     $ 6,272 [9],[49],[51]          
Investments at fair value         $ 8,673 [5],[47],[50]     9,960 [9],[49],[51]          
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               19,259          
Cost [9],[10],[18]               19,106          
Investments at fair value [9],[10],[18]               19,259          
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               5,012          
Cost [9],[10],[18]               4,996          
Investments at fair value [9],[10],[18]               5,012          
Investment, Identifier [Axis]: NMC Crimson Holdings, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               4,913          
Cost [9],[15],[16]               4,874          
Investments at fair value [9],[15],[16]               $ 4,913          
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC, Membership interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         0 [3],[5],[6],[23],[47] 0 [3],[5],[6],[23],[47] 0 [3],[5],[6],[23],[47] 0 [7],[9],[10],[24],[49] 0 [7],[9],[10],[24],[49]        
Cost         $ 160,000 [5],[6],[23],[47]     $ 160,000 [9],[10],[24],[49]          
Investments at fair value         $ 160,000 [5],[6],[23],[47]     $ 160,000 [9],[10],[24],[49]          
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC, Membership interest                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         0 [3],[5],[6],[23],[47] 0 [3],[5],[6],[23],[47] 0 [3],[5],[6],[23],[47] 0 [7],[9],[10],[24],[49] 0 [7],[9],[10],[24],[49]        
Cost         $ 112,400 [5],[6],[23],[47]     $ 112,400 [9],[10],[24],[49]          
Investments at fair value         112,400 [5],[6],[23],[47]     112,400 [9],[10],[24],[49]          
Investment, Identifier [Axis]: National HME, Inc., Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,281 [3],[5],[6],[46],[47]     8,281 [7],[9],[10],[48],[49]          
Cost         7,872 [5],[6],[46],[47]     7,871 [9],[10],[48],[49]          
Investments at fair value         3,000 [5],[6],[46],[47]     3,000 [9],[10],[48],[49]          
Investment, Identifier [Axis]: Nelipak Holding Company First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value               17,109          
Investment, Identifier [Axis]: Nelipak Holding Company First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value               406          
Investment, Identifier [Axis]: Nelipak Holding Company First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value               6,638          
Investment, Identifier [Axis]: Nelipak Holding Company First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value               833          
Investment, Identifier [Axis]: Nelipak Holding Company, Drawn Revolver                          
Schedule of Investments [Line Items]                          
Principal amount, par value         92                
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,620 [3],[5],[6],[11],[17],[52]     1,097 [7],[9],[10],[12],[18],[53]          
Cost         1,608 [5],[6],[11],[17],[52]     1,089 [9],[10],[12],[18],[53]          
Investments at fair value         1,620 [5],[6],[11],[17],[52]     1,097 [9],[10],[12],[18],[53]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value           € 78 [3],[5],[6],[11]   392 [7],[9],[10],[12]          
Cost         90 [5],[6],[11]     406 [9],[10],[12]          
Investments at fair value         92 [5],[6],[11]     405 [9],[10],[12]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,501 [3],[5],[6],[11]     3,501 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value | €           6,411 [3],[5],[6],[11],[17],[52]     € 6,411 [7],[9],[10],[12],[18],[53]        
Cost         0 [5],[6],[11],[17],[52]     0 [9],[10],[12],[18],[53]          
Investments at fair value         0 [5],[6],[11],[17],[52]     0 [9],[10],[12],[18],[53]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         993 [3],[5],[6],[11]       804 [7],[9],[10],[12],[18],[53]        
Cost         (7) [5],[6],[11]     (6) [9],[10],[12],[18],[53]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12],[18],[53]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien - Undrawn 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value           1,118 [3],[5],[6],[11],[17],[52]   1,515 [7],[9],[10],[12]          
Cost         (8) [5],[6],[11],[17],[52]     (11) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11],[17],[52]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         19,243 € 16,399 [3],[5],[6],[17],[52]     € 16,523 [7],[9],[10],[18],[53]        
Cost         17,644 [5],[6],[17],[52]     17,776 [9],[10],[18],[53]          
Investments at fair value         19,241 [5],[6],[17],[52]     17,108 [9],[10],[18],[53]          
Investment, Identifier [Axis]: Nelipak Holding Company, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         8,955 [3],[5],[13],[14]     9,023 [7],[9],[15],[16]          
Cost         8,899 [5],[13],[14]     8,961 [9],[15],[16]          
Investments at fair value         8,955 [5],[13],[14]     9,023 [9],[15],[16]          
Investment, Identifier [Axis]: Nelipak Holding Company, Undrawn Delayed Draw Term Loan                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,522                
Investment, Identifier [Axis]: Nelipak Holding Company, Undrawn Revolver                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,311                
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         50,388 [3],[5],[14],[47]     46,068 [7],[9],[16],[49]          
Cost         50,388 [5],[14],[47]     46,068 [9],[16],[49]          
Investments at fair value         50,388 [5],[14],[47]     46,068 [9],[16],[49]          
Investment, Identifier [Axis]: New Benevis Holdco, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         39,834 [3],[5],[6],[17],[47]     33,155 [7],[9],[10],[18],[49]          
Cost         39,834 [5],[6],[17],[47]     33,155 [9],[10],[18],[49]          
Investments at fair value         39,834 [5],[6],[17],[47]     33,155 [9],[10],[18],[49]          
Investment, Identifier [Axis]: New Benevis Holdco, Inc., Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value         26,071 [3],[5],[6],[47]     23,814 [7],[9],[10],[49]          
Cost         25,550 [5],[6],[47]     22,942 [9],[10],[49]          
Investments at fair value         $ 20,857 [5],[6],[47]     $ 19,051 [9],[10],[49]          
Investment, Identifier [Axis]: New Benevis Topco, LLC, Common stock 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[14],[47]         325,516 325,516 325,516            
Cost [5],[14],[47]         $ 27,154                
Investments at fair value [5],[14],[47]         $ 27,721                
Investment, Identifier [Axis]: New Benevis Topco, LLC, Common stock 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[47]         152,548 152,548 152,548            
Cost [5],[6],[47]         $ 12,768                
Investments at fair value [5],[6],[47]         $ 12,992                
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[16],[49]               325,516 325,516        
Cost [9],[16],[49]               $ 27,154          
Investments at fair value [9],[16],[49]               $ 28,481          
Investment, Identifier [Axis]: New Benevis Topco, LLC, Ordinary shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[49]               152,548 152,548        
Cost [9],[10],[49]               $ 12,768          
Investments at fair value [9],[10],[49]               $ 13,347          
Investment, Identifier [Axis]: New Permian Holdco, Inc., Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         100 [3],[5],[6],[47] 100 [3],[5],[6],[47] 100 [3],[5],[6],[47] 100 [7],[9],[10],[49] 100 [7],[9],[10],[49]        
Cost         $ 11,155 [5],[6],[47]     $ 11,155 [9],[10],[49]          
Investments at fair value         13,000 [5],[6],[47]     18,900 [9],[10],[49]          
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         23,336 [3],[5],[6],[17],[47]     23,336 [7],[9],[10],[18],[49]          
Cost         23,336 [5],[6],[17],[47]     23,336 [9],[10],[18],[49]          
Investments at fair value         23,336 [5],[6],[17],[47]     23,336 [9],[10],[18],[49]          
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17],[47]         26,998                
Cost [5],[6],[11],[17],[47]         26,998                
Investments at fair value [5],[6],[11],[17],[47]         26,998                
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[18],[49]               20,840          
Cost [9],[10],[12],[18],[49]               20,840          
Investments at fair value [9],[10],[12],[18],[49]               20,840          
Investment, Identifier [Axis]: New Permian Holdco, L.L.C., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,897 [3],[5],[6],[11],[47]     1,055 [7],[9],[10],[12],[49]          
Cost         0 [5],[6],[11],[47]     0 [9],[10],[12],[49]          
Investments at fair value         0 [5],[6],[11],[47]     0 [9],[10],[12],[49]          
Investment, Identifier [Axis]: Next Holdco, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,280 [3],[5],[13],[14]     3,494 [7],[9],[15],[16]          
Cost         6,247 [5],[13],[14]     3,471 [9],[15],[16]          
Investments at fair value         6,280 [5],[13],[14]     3,494 [9],[15],[16]          
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               903          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               339          
Cost [9],[10],[12]               (3)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         903                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Next Holdco, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         339                
Cost [5],[6],[11]         (3)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Notorious Topco, LLC , First lien                          
Schedule of Investments [Line Items]                          
Cost         21,816                
Investments at fair value         13,715                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         880                
Cost [5],[6],[11]         874                
Investments at fair value [5],[6],[11]         551                
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               880          
Cost [9],[10],[12]               (7)          
Investments at fair value [9],[10],[12]               (71)          
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,135 [3],[5],[6],[17]     10,058 [7],[9],[10],[18]          
Cost         10,097 [5],[6],[17]     10,017 [9],[10],[18]          
Investments at fair value         6,345 [5],[6],[17]     9,241 [9],[10],[18]          
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,008 [3],[5],[6],[17]     9,932 [7],[9],[10],[18]          
Cost         9,968 [5],[6],[17]     9,889 [9],[10],[18]          
Investments at fair value         6,266 [5],[6],[17]     9,126 [9],[10],[18]          
Investment, Identifier [Axis]: Notorious Topco, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         883 [3],[5],[6],[17]     877 [7],[9],[10],[18]          
Cost         877 [5],[6],[17]     870 [9],[10],[18]          
Investments at fair value         553 [5],[6],[17]     805 [9],[10],[18]          
Investment, Identifier [Axis]: OA Buyer, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[54]               3,600          
Cost [9],[10],[12],[54]               (36)          
Investments at fair value [9],[10],[12],[54]               0          
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               31,513          
Cost [9],[15],[16]               31,442          
Investments at fair value [9],[15],[16]               31,513          
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               27,425          
Cost [9],[15],[16]               27,248          
Investments at fair value [9],[15],[16]               27,425          
Investment, Identifier [Axis]: OA Buyer, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               1,736          
Cost [9],[15],[16]               1,724          
Investments at fair value [9],[15],[16]               $ 1,736          
Investment, Identifier [Axis]: OA Topco, L.P., Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[54]               2,000,000 2,000,000        
Cost [9],[10],[54]               $ 2,000          
Investments at fair value [9],[10],[54]               7,646          
Investment, Identifier [Axis]: OEConnection LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               46,430          
Cost [9],[15],[16]               46,214          
Investments at fair value [9],[15],[16]               46,430          
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6],[11]         5,063                
Cost [6],[11]         (25)                
Investments at fair value [6],[11]         0                
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               8,101          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: OEConnection LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               5,063          
Cost [9],[10],[12]               (25)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: OEConnection LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         46,080                
Cost [13],[14]         45,885                
Investments at fair value [13],[14]         46,234                
Investment, Identifier [Axis]: OEConnection LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6],[17]         8,040                
Cost [6],[17]         8,004                
Investments at fair value [6],[17]         8,067                
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,860          
Cost [9],[10],[12]               (23)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               7,440          
Cost [9],[15],[16]               7,370          
Investments at fair value [9],[15],[16]               7,440          
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10]               7,440          
Cost [9],[10]               7,369          
Investments at fair value [9],[10]               7,440          
Investment, Identifier [Axis]: Oranje Holdco, Inc., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10]               5,454          
Cost [9],[10]               5,404          
Investments at fair value [9],[10]               5,454          
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[20]               18,161          
Cost [9],[20]               18,078          
Investments at fair value [9],[20]               18,161          
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         732 [3],[5],[6],[11]     2,360 [7],[9],[12],[20]          
Cost         728 [5],[6],[11]     2,348 [9],[12],[20]          
Investments at fair value         732 [5],[6],[11]     2,360 [9],[12],[20]          
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,098                
Cost [5],[6],[11]         (5)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[12],[20]               1,865          
Cost [9],[12],[20]               0          
Investments at fair value [9],[12],[20]               0          
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,830          
Cost [9],[10],[12]               (9)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[19]         22,227                
Cost [5],[19]         22,133                
Investments at fair value [5],[19]         22,227                
Investment, Identifier [Axis]: PDI TA Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         510                
Cost [5],[6],[17]         510                
Investments at fair value [5],[6],[17]         510                
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         486 [3],[5],[6],[11]     486 [7],[9],[10],[12]          
Cost         (5) [5],[6],[11]     (5) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,219 [3],[5],[19]     22,388 [7],[9],[20]          
Cost         22,172 [5],[19]     22,332 [9],[20]          
Investments at fair value         22,219 [5],[19]     22,388 [9],[20]          
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               8,258          
Cost [9],[15],[16]               8,258          
Investments at fair value [9],[15],[16]               8,258          
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         8,196                
Cost [5],[13],[14]         8,196                
Investments at fair value [5],[13],[14]         8,196                
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares                         20,000,000
Principal amount, par value         14,500 [3],[5],[6]     14,500 [7],[9],[10]         $ 20,000
Repurchase amount                         $ 20,000
Proceeds from sale of investment     $ 20,540                    
Cost         14,500 [5],[6]     14,500 [9],[10]          
Investments at fair value         6,525 [5],[6]     6,525 [9],[10]          
Investment, Identifier [Axis]: PPVA Fund, L.P., Collateralized Financing                          
Schedule of Investments [Line Items]                          
Principal amount, par value         0 [3],[55],[56]     0 [7],[57],[58]          
Cost         0 [55],[56]     0 [57],[58]          
Investments at fair value         0 [55],[56]     0 [57],[58]          
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               7,654          
Cost [9],[15],[16]               7,635          
Investments at fair value [9],[15],[16]               7,635          
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         312 [3],[6],[11],[17]     258 [7],[9],[10],[12],[18]          
Cost         312 [6],[11],[17]     258 [9],[10],[12],[18]          
Investments at fair value         312 [6],[11],[17]     258 [9],[10],[12],[18]          
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6],[11]         589                
Cost [6],[11]         (1)                
Investments at fair value [6],[11]         0                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               643          
Cost [9],[10],[12]               (2)          
Investments at fair value [9],[10],[12]               (2)          
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,201          
Cost [9],[10],[12]               (3)          
Investments at fair value [9],[10],[12]               (3)          
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         7,596                
Cost [13],[14]         7,579                
Investments at fair value [13],[14]         7,596                
Investment, Identifier [Axis]: Park Place Technologies, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[6]         622                
Cost [6]         619                
Investments at fair value [6]         621                
Investment, Identifier [Axis]: Permian Trust, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,409 [3],[5],[6],[33]     3,409 [7],[9],[10],[34]          
Cost         0 [5],[6],[33]     0 [9],[10],[34]          
Investments at fair value         0 [5],[6],[33]     0 [9],[10],[34]          
Investment, Identifier [Axis]: Permian Trust, Trust Claim                          
Schedule of Investments [Line Items]                          
Principal amount, par value         247 [3],[5],[33],[59]     247 [7],[9],[34],[60]          
Cost         0 [5],[33],[59]     0 [9],[34],[60]          
Investments at fair value         0 [5],[33],[59]     0 [9],[34],[60]          
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         27,932 [3],[5],[6],[17]     28,145 [7],[9],[15],[16]          
Cost         27,708 [5],[6],[17]     27,895 [9],[15],[16]          
Investments at fair value         26,717 [5],[6],[17]     28,145 [9],[15],[16]          
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,708 [3],[5],[6],[11]     3,708 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         (161) [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: PetVet Care Centers, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,708 [3],[5],[6],[11]     3,708 [7],[9],[10],[12]          
Cost         (37) [5],[6],[11]     (37) [9],[10],[12]          
Investments at fair value         (161) [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,284 [3],[5],[6],[11],[61]     3,284 [7],[9],[10],[12],[62]          
Cost         (26) [5],[6],[11],[61]     (26) [9],[10],[12],[62]          
Investments at fair value         0 [5],[6],[11],[61]     0 [9],[10],[12],[62]          
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         23,089 [3],[5],[6],[17]     23,089 [7],[9],[10],[18]          
Cost         23,012 [5],[6],[17]     22,997 [9],[10],[18]          
Investments at fair value         23,089 [5],[6],[17]     23,089 [9],[10],[18]          
Investment, Identifier [Axis]: Pioneer Buyer I, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,374 [3],[5],[6]     2,374 [7],[9],[10],[18]          
Cost         2,366 [5],[6]     2,364 [9],[10],[18]          
Investments at fair value         $ 2,374 [5],[6]     $ 2,374 [9],[10],[18]          
Investment, Identifier [Axis]: Pioneer Topco I, L.P., Class A-2 common units                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[61],[63]         199,980 199,980 199,980            
Cost [5],[61],[63]         $ 2,000                
Investments at fair value [5],[61],[63]         2,086                
Investment, Identifier [Axis]: Pioneer Topco I, L.P., Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[62],[64]               199,980 199,980        
Cost [9],[62],[64]               $ 2,000          
Investments at fair value [9],[62],[64]               2,000          
Investment, Identifier [Axis]: Planview Parent, Inc., Second lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         9,231 [3],[5],[6],[17]     9,231 [7],[15],[16]          
Cost         9,211 [5],[6],[17]     9,208 [15],[16]          
Investments at fair value         8,952 [5],[6],[17]     9,208 [15],[16]          
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,218 [3],[5],[19]     22,387 [7],[9],[20]          
Cost         22,076 [5],[19]     22,228 [9],[20]          
Investments at fair value         22,218 [5],[19]     22,387 [9],[20]          
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         515                
Cost [5],[6],[11]         510                
Investments at fair value [5],[6],[11]         515                
Investment, Identifier [Axis]: Power Grid Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,775 [3],[5],[6],[11]     4,289 [7],[9],[10],[12]          
Cost         (38) [5],[6],[11]     (43) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,440 [3],[5],[29]     10,519 [7],[9],[28]          
Cost         10,396 [5],[29]     10,470 [9],[28]          
Investments at fair value         10,441 [5],[29]     10,519 [9],[28]          
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,510 [3],[5],[6],[11]     1,510 [7],[9],[10],[12]          
Cost         (8) [5],[6],[11]     (8) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     $ 0 [9],[10],[12]          
Investment, Identifier [Axis]: Project Essential Super Parent, Inc., Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10]               10,000 10,000        
Cost [9],[10]               $ 15,929          
Investments at fair value [9],[10]               14,833          
Investment, Identifier [Axis]: RLG Holdings, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[15],[16]               3,970          
Cost [15],[16]               3,970          
Investments at fair value [15],[16]               3,934          
Investment, Identifier [Axis]: RLG Holdings, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         3,939                
Cost [13],[14]         3,939                
Investments at fair value [13],[14]         3,315                
Investment, Identifier [Axis]: RLG Holdings, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         1,067                
Cost [13],[14]         883                
Investments at fair value [13],[14]         883                
Investment, Identifier [Axis]: RailPros Parent, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         5,843                
Cost [5],[13],[14]         5,815                
Investments at fair value [5],[13],[14]         5,813                
Investment, Identifier [Axis]: RailPros Parent, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         899                
Cost [5],[6],[11]         (4)                
Investments at fair value [5],[6],[11]         (4)                
Investment, Identifier [Axis]: RailPros Parent, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,798                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (9)                
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         152 [3],[5],[14]     152 [7],[9],[16]          
Cost         152 [5],[14]     152 [9],[16]          
Investments at fair value         152 [5],[14]     152 [9],[16]          
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Trust Claim 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         52 [3],[5],[6]     52 [7],[9],[10]          
Cost         52 [5],[6]     52 [9],[10]          
Investments at fair value         $ 52 [5],[6]     $ 52 [9],[10]          
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         138,622 [3],[5],[14] 138,622 [3],[5],[14] 138,622 [3],[5],[14] 138,622 [7],[9],[16] 138,622 [7],[9],[16]        
Cost         $ 182 [5],[14]     $ 182 [9],[16]          
Investments at fair value         $ 272 [5],[14]     $ 327 [9],[16]          
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC, Warrants 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         47,459 [3],[5],[6] 47,459 [3],[5],[6] 47,459 [3],[5],[6] 47,459 [7],[9],[10] 47,459 [7],[9],[10]        
Cost         $ 62 [5],[6]     $ 62 [9],[10]          
Investments at fair value         93 [5],[6]     112 [9],[10]          
Investment, Identifier [Axis]: Riskonnect Parent, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               6,349          
Cost [9],[10],[12]               0          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Riskonnect Parent, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         6,349                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Rithum Holdings, Inc. (fka CommerceHub, Inc.), First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[13],[14]         7,111                
Cost [13],[14]         6,971                
Investments at fair value [13],[14]         7,118                
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               384          
Cost [9],[10],[12]               (2)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         166 [3],[5],[6],[11]     128 [7],[9],[10],[12]          
Cost         165 [5],[6],[11]     127 [9],[10],[12]          
Investments at fair value         166 [5],[6],[11]     128 [9],[10],[12]          
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,390 [3],[5],[13],[14]     7,446 [7],[9],[15],[16]          
Cost         7,375 [5],[13],[14]     7,425 [9],[15],[16]          
Investments at fair value         7,390 [5],[13],[14]     7,446 [9],[15],[16]          
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         1,511 [3],[5],[6],[17]     1,523 [7],[9],[10],[18]          
Cost         1,511 [5],[6],[17]     1,523 [9],[10],[18]          
Investments at fair value         1,511 [5],[6],[17]     1,523 [9],[10],[18]          
Investment, Identifier [Axis]: Safety Borrower Holdings LLC, First lien- Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         345                
Cost [5],[6],[11]         (2)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Sierra Enterprises, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         21,411 [3],[5],[13],[14]     42,450 [7],[9],[10],[18]          
Cost         21,260 [5],[13],[14]     38,840 [9],[10],[18]          
Investments at fair value         21,250 [5],[13],[14]     $ 42,450 [9],[10],[18]          
Investment, Identifier [Axis]: Sierra Enterprises, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         2,717                
Cost [5],[6],[11]         (20)                
Investments at fair value [5],[6],[11]         $ (20)                
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         25,000,000 [3],[5],[14],[33] 25,000,000 [3],[5],[14],[33] 25,000,000 [3],[5],[14],[33] 25,000,000 [7],[9],[16],[34] 25,000,000 [7],[9],[16],[34]        
Cost         $ 11,501 [5],[14],[33]     $ 11,501 [9],[16],[34]          
Investments at fair value         $ 1,799 [5],[14],[33]     $ 1,799 [9],[16],[34]          
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation, Ordinary shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         2,786,000 [3],[5],[6],[33] 2,786,000 [3],[5],[6],[33] 2,786,000 [3],[5],[6],[33] 2,786,000 [7],[9],[10],[34] 2,786,000 [7],[9],[10],[34]        
Cost         $ 1,282 [5],[6],[33]     $ 1,282 [9],[10],[34]          
Investments at fair value         201 [5],[6],[33]     201 [9],[10],[34]          
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12],[18]               324          
Cost [9],[10],[12],[18]               319          
Investments at fair value [9],[10],[12],[18]               315          
Investment, Identifier [Axis]: Specialtycare, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               235          
Cost [9],[10],[12]               (4)          
Investments at fair value [9],[10],[12]               (7)          
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               10,247          
Cost [9],[15],[16]               10,167          
Investments at fair value [9],[15],[16]               9,953          
Investment, Identifier [Axis]: Specialtycare, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               77          
Cost [9],[10],[18]               76          
Investments at fair value [9],[10],[18]               $ 75          
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc.                          
Schedule of Investments [Line Items]                          
Principal amount, par value         $ 24,733                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[20]               7,500 7,500        
Cost [9],[20]               $ 16,363          
Investments at fair value [9],[20]               $ 16,450          
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Preferred shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[18]               2,586 2,586        
Cost [9],[10],[18]               $ 5,641          
Investments at fair value [9],[10],[18]               5,671          
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Series A preferred shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[19]         7,500 7,500 7,500            
Cost [5],[19]         $ 18,280                
Investments at fair value [5],[19]         $ 17,609                
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc., Series A preferred shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[17]         2,586 2,586 2,586            
Cost [5],[6],[17]         $ 6,302                
Investments at fair value [5],[6],[17]         6,070                
Investment, Identifier [Axis]: Syndigo LLC, Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[20]               22,500          
Cost [9],[20]               22,397          
Investments at fair value [9],[20]               22,500          
Investment, Identifier [Axis]: Syndigo LLC, Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               5,697          
Cost [9],[15],[16]               5,706          
Investments at fair value [9],[15],[16]               5,697          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,695 [3],[5],[6],[11]     2,695 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         12,631 [3],[5],[14]     12,327 [7],[9],[16]          
Cost         12,153 [5],[14]     11,782 [9],[16]          
Investments at fair value         8,161 [5],[14]     10,402 [9],[16]          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         10,169 [3],[5],[6],[17]     9,925 [7],[9],[10]          
Cost         10,076 [5],[6],[17]     9,818 [9],[10]          
Investments at fair value         6,570 [5],[6],[17]     8,374 [9],[10]          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,036 [3],[5],[6],[17]     2,843 [7],[9],[10]          
Cost         2,794 [5],[6],[17]     2,317 [9],[10]          
Investments at fair value         2,581 [5],[6],[17]     2,351 [9],[10]          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         328 [3],[5],[14]     302 [7],[9],[16]          
Cost         328 [5],[14]     302 [9],[16]          
Investments at fair value         328 [5],[14]     302 [9],[16]          
Investment, Identifier [Axis]: TMK Hawk Parent, Corp., Subordinated 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         316 [3],[5],[6]     291 [7],[9],[10]          
Cost         316 [5],[6]     291 [9],[10]          
Investments at fair value         $ 316 [5],[6]     $ 291 [9],[10]          
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Class B-1 Common Shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[33]         24,450 24,450 24,450            
Principal amount, par value         $ 48,080                
Cost [5],[6],[33]         43,212                
Investments at fair value [5],[6],[33]         $ 40,481                
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Class B-2 Common Shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[33]         24,450 24,450 24,450            
Principal amount, par value         $ 29,707                
Cost [5],[6],[33]         24,839                
Investments at fair value [5],[6],[33]         $ 0                
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Ordinary shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[34]               48,899 48,899        
Cost [9],[10],[34]               $ 66,651          
Investments at fair value [9],[10],[34]               $ 59,978          
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Preferred shares                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[34]               3,480 3,480        
Cost [9],[10],[34]               $ 7,525          
Investments at fair value [9],[10],[34]               9,352          
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC, Series C-2 Preferred Units                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [3],[5],[6],[33]         3,480 3,480 3,480            
Cost [5],[6],[33]         $ 8,404                
Investments at fair value [5],[6],[33]         8,404                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18],[24]               19,418          
Cost [9],[10],[18],[24]               19,326          
Investments at fair value [9],[10],[18],[24]               19,321          
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         19,815                
Cost [5],[6],[17]         19,852                
Investments at fair value [5],[6],[17]         19,815                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         16,245                
Cost [5],[13],[14]         16,245                
Investments at fair value [5],[13],[14]         16,245                
Investment, Identifier [Axis]: Tennessee Bidco Limited, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         881                
Cost [5],[13],[14]         881                
Investments at fair value [5],[13],[14]         881                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               29,868          
Cost [9],[15],[16]               29,689          
Investments at fair value [9],[15],[16]               29,868          
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,273 [3],[5],[11],[14]     2,440 [7],[9],[12],[16]          
Cost         3,273 [5],[11],[14]     2,440 [9],[12],[16]          
Investments at fair value         3,273 [5],[11],[14]     2,440 [9],[12],[16]          
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         468 [3],[5],[11],[14]     1,301 [7],[9],[12],[16]          
Cost         0 [5],[11],[14]     0 [9],[12],[16]          
Investments at fair value         0 [5],[11],[14]     0 [9],[12],[16]          
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         46 [3],[5],[6],[11]     4,267 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     (43) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: TigerConnect, Inc., First lien - Undrawn 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         4,267                
Cost [5],[6],[11]         (43)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         29,868                
Cost [5],[6],[17]         29,714                
Investments at fair value [5],[6],[17]         29,868                
Investment, Identifier [Axis]: TigerConnect, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         3,054                
Cost [5],[6],[17]         3,032                
Investments at fair value [5],[6],[17]         3,054                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,501                
Cost [5],[6],[11]         (15)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[12],[15],[16]               785          
Cost [9],[12],[15],[16]               0          
Investments at fair value [9],[12],[15],[16]               0          
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[12]               1,501          
Cost [9],[10],[12]               (15)          
Investments at fair value [9],[10],[12]               0          
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         15,343 [3],[5],[13],[14]     15,382 [7],[9],[15],[16]          
Cost         15,280 [5],[13],[14]     15,303 [9],[15],[16]          
Investments at fair value         15,343 [5],[13],[14]     15,382 [9],[15],[16]          
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,145 [3],[5],[13],[14]     4,467 [7],[9],[15],[16]          
Cost         5,118 [5],[13],[14]     4,438 [9],[15],[16]          
Investments at fair value         5,145 [5],[13],[14]     4,467 [9],[15],[16]          
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         893 [3],[5],[6],[11]     893 [7],[9],[10],[12]          
Cost         (9) [5],[6],[11]     (9) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         6,930 [3],[5],[6],[17]     6,984 [7],[9],[10],[18]          
Cost         6,897 [5],[6],[17]     6,946 [9],[10],[18]          
Investments at fair value         6,930 [5],[6],[17]     6,984 [9],[10],[18]          
Investment, Identifier [Axis]: USRP Holdings, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         5,498 [3],[5],[13],[14]     5,541 [7],[9],[15],[16]          
Cost         5,473 [5],[13],[14]     5,512 [9],[15],[16]          
Investments at fair value         5,498 [5],[13],[14]     $ 5,541 [9],[15],[16]          
Investment, Identifier [Axis]: Ultimus Group Midco, LLC, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         9,116                
Cost [5],[6],[17]         9,071                
Investments at fair value [5],[6],[17]         9,070                
Investment, Identifier [Axis]: Ultimus Group Midco, LLC, First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         3,039                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: Ultimus Group Midco, LLC, First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,139                
Cost [5],[6],[11]         (6)                
Investments at fair value [5],[6],[11]         $ (6)                
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         2,096,477 [3],[5],[14],[47] 2,096,477 [3],[5],[14],[47] 2,096,477 [3],[5],[14],[47] 2,096,477 [7],[9],[16],[49] 2,096,477 [7],[9],[16],[49]        
Cost         $ 1,925 [5],[14],[47]     $ 1,925 [9],[16],[49]          
Investments at fair value         $ 0 [5],[14],[47]     $ 0 [9],[16],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Ordinary shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         9,236,492 [3],[5],[6],[47] 9,236,492 [3],[5],[6],[47] 9,236,492 [3],[5],[6],[47] 1,993,749 [7],[9],[10],[49] 1,993,749 [7],[9],[10],[49]        
Cost         $ 532 [5],[6],[47]     $ 532 [9],[10],[49]          
Investments at fair value         $ 0 [5],[6],[47]     $ 0 [9],[10],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 1                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         61,414,892 [3],[5],[6],[47] 61,414,892 [3],[5],[6],[47] 61,414,892 [3],[5],[6],[47] 22,803,214 [7],[9],[10],[49] 22,803,214 [7],[9],[10],[49]        
Cost         $ 58,091 [5],[6],[47]     $ 22,803 [9],[10],[49]          
Investments at fair value         $ 61,415 [5],[6],[47]     $ 20,646 [9],[10],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 2                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         80,994,293 [3],[5],[6],[47] 80,994,293 [3],[5],[6],[47] 80,994,293 [3],[5],[6],[47] 13,553,020 [7],[9],[10],[49] 13,553,020 [7],[9],[10],[49]        
Cost         $ 29,318 [5],[6],[47]     $ 13,553 [9],[10],[49]          
Investments at fair value         $ 8,675 [5],[6],[47]     $ 12,682 [9],[10],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 3                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         29,326,545 [3],[5],[14],[47] 29,326,545 [3],[5],[14],[47] 29,326,545 [3],[5],[14],[47] 19,795,435 [7],[9],[10],[49] 19,795,435 [7],[9],[10],[49]        
Cost         $ 26,946 [5],[14],[47]     $ 19,795 [9],[10],[49]          
Investments at fair value         $ 0 [5],[14],[47]     $ 3,080 [9],[10],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 4                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares         141,354,439 [3],[5],[6],[47] 141,354,439 [3],[5],[6],[47] 141,354,439 [3],[5],[6],[47] 29,326,545 [7],[9],[16],[49] 29,326,545 [7],[9],[16],[49]        
Cost         $ 7,447 [5],[6],[47]     $ 26,946 [9],[16],[49]          
Investments at fair value         0 [5],[6],[47]     $ 0 [9],[16],[49]          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Preferred shares 5                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[49]               8,104,462 8,104,462        
Cost [9],[10],[49]               $ 7,447          
Investments at fair value [9],[10],[49]               0          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[49]               15,608          
Cost [9],[10],[49]               15,608          
Investments at fair value [9],[10],[49]               15,459          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Second lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[49]               6,919          
Cost [9],[10],[49]               6,919          
Investments at fair value [9],[10],[49]               $ 6,853          
Investment, Identifier [Axis]: UniTek Global Services, Inc., Warrants                          
Schedule of Investments [Line Items]                          
Principal amount, shares (in shares) | shares [7],[9],[10],[49]               13,339 13,339        
Cost [9],[10],[49]               $ 0          
Investments at fair value [9],[10],[49]               48,804          
Investment, Identifier [Axis]: Vehlo Purchaser, LLC, First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         6,073                
Cost [5],[6],[11]         6,032                
Investments at fair value [5],[6],[11]         6,042                
Investment, Identifier [Axis]: Vehlo Purchaser, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         3,897                
Cost [5],[6],[11]         (39)                
Investments at fair value [5],[6],[11]         (19)                
Investment, Identifier [Axis]: Viper Bidco,Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         16,059                
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value             £ 11,940 [3],[5],[6],[17],[52] 12,030 [7],[9],[10],[18],[53]          
Cost         15,066 [5],[6],[17],[52]     15,181 [9],[10],[18],[53]          
Investments at fair value         15,979 [5],[6],[17],[52]     14,981 [9],[10],[18],[53]          
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         3,320 [3],[5],[6],[11]     4,150 [7],[9],[10],[12]          
Cost         (17) [5],[6],[11]     0 [9],[10],[12]          
Investments at fair value         (17) [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         4,150 [3],[5],[6],[11]     3,320 [7],[9],[10],[12]          
Cost         0 [5],[6],[11]     (17) [9],[10],[12]          
Investments at fair value         (21) [5],[6],[11]     (17) [9],[10],[12]          
Investment, Identifier [Axis]: Viper Bidco. Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value               15,057          
Investment, Identifier [Axis]: WEG Sub Intermediate Holdings, LLC, Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6]         4,515                
Cost [5],[6]         4,472                
Investments at fair value [5],[6]         4,515                
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,040 [3],[5],[6],[11]     2,040 [7],[9],[10],[12]          
Cost         (6) [5],[6],[11]     (6) [9],[10],[12]          
Investments at fair value         0 [5],[6],[11]     0 [9],[10],[12]          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               15,593          
Cost [9],[15],[16]               15,565          
Investments at fair value [9],[15],[16]               15,593          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               11,908          
Cost [9],[10],[18]               11,887          
Investments at fair value [9],[10],[18]               11,908          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 3                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[15],[16]               6,659          
Cost [9],[15],[16]               6,644          
Investments at fair value [9],[15],[16]               6,659          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 4                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               1,228          
Cost [9],[10],[18]               1,221          
Investments at fair value [9],[10],[18]               1,228          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, First lien 5                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10],[18]               824          
Cost [9],[10],[18]               819          
Investments at fair value [9],[10],[18]               824          
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC, Subordinated                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[10]               4,231          
Cost [9],[10]               4,185          
Investments at fair value [9],[10]               4,231          
Investment, Identifier [Axis]: Xactly Corporation, First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value         22,500 [3],[5],[19]     22,500 [7],[9],[20]          
Cost         22,487 [5],[19]     22,483 [9],[20]          
Investments at fair value         22,241 [5],[19]     22,250 [9],[20]          
Investment, Identifier [Axis]: Xactly Corporation, First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         992 [3],[5],[6],[11]     992 [7],[9],[10],[12]          
Cost         (10) [5],[6],[11]     (10) [9],[10],[12]          
Investments at fair value         (11) [5],[6],[11]     (11) [9],[10],[12]          
Investment, Identifier [Axis]: YLG Holding, Inc, First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[13],[14]         4,320                
Cost [5],[13],[14]         4,299                
Investments at fair value [5],[13],[14]         4,320                
Investment, Identifier [Axis]: YLG Holding, Inc, First lien - Drawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         19                
Cost [5],[6],[11]         18                
Investments at fair value [5],[6],[11]         19                
Investment, Identifier [Axis]: YLG Holding, Inc, First lien - Drawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         395                
Cost [5],[6],[11]         393                
Investments at fair value [5],[6],[11]         395                
Investment, Identifier [Axis]: YLG Holding, Inc, First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[29]         21,716                
Cost [5],[29]         21,692                
Investments at fair value [5],[29]         21,716                
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien                          
Schedule of Investments [Line Items]                          
Principal amount, par value [7],[9],[28]               21,825          
Cost [9],[28]               21,798          
Investments at fair value [9],[28]               21,825          
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         291                
Cost [5],[6],[11]         (1)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: YLG Holdings, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         271                
Cost [5],[6],[11]         (1)                
Investments at fair value [5],[6],[11]         0                
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11],[17]         301                
Cost [5],[6],[11],[17]         289                
Investments at fair value [5],[6],[11],[17]         298                
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Undrawn 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,074                
Cost [5],[6],[11]         (11)                
Investments at fair value [5],[6],[11]         (11)                
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien - Undrawn 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[11]         1,847                
Cost [5],[6],[11]         0                
Investments at fair value [5],[6],[11]         (18)                
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         11,380                
Cost [5],[6],[17]         11,271                
Investments at fair value [5],[6],[17]         11,266                
Investment, Identifier [Axis]: eResearchTechnology, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value [3],[5],[6],[17]         1,889                
Cost [5],[6],[17]         1,876                
Investments at fair value [5],[6],[17]         1,871                
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Drawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         988 [3],[5],[6],[11]     706 [7],[9],[10],[12]          
Cost         985 [5],[6],[11]     705 [9],[10],[12]          
Investments at fair value         964 [5],[6],[11]     701 [9],[10],[12]          
Investment, Identifier [Axis]: iCIMS, Inc., First lien - Undrawn                          
Schedule of Investments [Line Items]                          
Principal amount, par value         2,542 [3],[5],[6],[11]     2,824 [7],[9],[10],[12]          
Cost         (22) [5],[6],[11]     (25) [9],[10],[12]          
Investments at fair value         (64) [5],[6],[11]     (21) [9],[10],[12]          
Investment, Identifier [Axis]: iCIMS, Inc., First lien 1                          
Schedule of Investments [Line Items]                          
Principal amount, par value         44,742 [3],[5],[13],[14]     44,742 [7],[9],[15],[16]          
Cost         44,576 [5],[13],[14]     44,537 [9],[15],[16]          
Investments at fair value         43,623 [5],[13],[14]     44,406 [9],[15],[16]          
Investment, Identifier [Axis]: iCIMS, Inc., First lien 2                          
Schedule of Investments [Line Items]                          
Principal amount, par value         7,366 [3],[5],[13],[14]     7,366 [7],[9],[15],[16]          
Cost         7,329 [5],[13],[14]     7,321 [9],[15],[16]          
Investments at fair value         $ 7,274 [5],[13],[14]     $ 7,311 [9],[15],[16]          
[1] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[2] New Mountain Finance Corporation (the "Company") generally acquires its investments in private transactions exempt from registration under the Securities Act of 1933, as amended (the "Securities Act"). These investments are generally subject to certain limitations on resale, and may be deemed to be "restricted securities" under the Securities Act.
[3] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[4] The Company holds ordinary shares in AAC Lender Holdings, LLC and two first lien term loans, a first lien revolver and subordinated notes in American Achievement Corporation, a partially-owned subsidiary of AAC Lender Holdings, LLC.
[5] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[6] Investment is held by New Mountain Finance Corporation
[7] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[8] The Company holds ordinary shares in AAC Lender Holdings, LLC and two first lien term loans, a first lien revolver and subordinated notes in American Achievement Corporation, a partially-owned subsidiary of AAC Lender Holdings, LLC.
[9] The fair value of the Company's investment is determined using unobservable inputs that are significant to the overall fair value measurement. See Note 4. Fair Value, for details.
[10] Investment is held by New Mountain Finance Corporation
[11] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolvers or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[12] Par value amounts represent the drawn or undrawn (as indicated in type of investment) portion of revolving credit facilities or delayed draws. Cost amounts represent the cash received at settlement date net of the impact of paydowns and cash paid for drawn revolvers or delayed draws.
[13] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. as the Borrower, Wells Fargo Securities, LLC, as the Administrative Agent, and Wells Fargo Bank, National Association, as the Lender and Collateral Custodian.. See Note 7. Borrowings, for details.
[14] Investment is held by New Mountain Finance Holdings, L.L.C.
[15] Investment is pledged as collateral for the Holdings Credit Facility, a revolving credit facility among the Company, as the Collateral Manager, New Mountain Finance Holdings, L.L.C. as the Borrower, Wells Fargo Securities, LLC, as the Administrative Agent, and Wells Fargo Bank, National Association, as the Lender and Collateral Custodian.. See Note 7. Borrowings, for details.
[16] Investment is held by New Mountain Finance Holdings, L.L.C.
[17] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower, Sumitomo Mitsui Banking Corporation, as administrative agent, sole lead arranger, and sole book runner, and the lenders party thereto. See Note 7. Borrowings, for details.
[18] Investment is pledged as collateral for the NMFC Credit Facility, a revolving credit facility among the Company as the Borrower, Sumitomo Mitsui Banking Corporation, as administrative agent, sole lead arranger, and sole book runner, and the lenders party thereto. See Note 7. Borrowings, for details
[19] Investment is held by New Mountain Finance SBIC, L.P.
[20] Investment is held by New Mountain Finance SBIC, L.P.
[21] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, two first lien delayed draws and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2025, the Company's stated value of it's equity investment, plus unpaid compounded dividends, was $20,249.
[22] The Company holds investments in ACI Parent Inc. and a wholly-owned subsidiary of ACI Parent Inc. The Company holds a first lien term loan, two first lien delayed draws and a first lien revolver in ACI Group Holdings, Inc. and preferred equity in ACI Parent Inc.
[23] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of September 30, 2025, 15.1% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[24] Indicates assets that the Company deems to be “non-qualifying assets” under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70.0% of the Company’s total assets at the time of acquisition of any additional non-qualifying assets. As of December 31, 2024, 14.6% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[25] Investment is held by NMF Ancora Holdings, Inc.
[26] Investment is held by NMF Ancora Holdings, Inc.
[27] The Company holds preferred equity in Bamboo Health Intermediate Holdings, Inc.(fka Appriss Health Intermediate Holdings, Inc.) and holds a first lien term loan and a first lien revolver in Bamboo Health Holdings, LLC (fka Appriss Health, LLC), a wholly-owned subsidiary of Bamboo Health Intermediate Holdings, Inc.
[28] Investment is held by New Mountain Finance SBIC II, L.P.
[29] Investment is held by New Mountain Finance SBIC II, L.P.
[30] The Company's preferred equity investment in Dealer Tire Holdings, LLC is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2025, the Company's stated value of it's share, plus unpaid compounded dividends, was $84,739.
[31] The Company holds investments in two wholly-owned subsidiaries of Diamond Parent Holdings Corp. The Company holds two first lien term loans, a first lien delayed draw and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer, Inc. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2025, the Company's stated value of it's equity investment, plus unpaid compounded dividends, was $15,827.
[32] The Company holds investments in two wholly-owned subsidiaries of Diamond Parent Holdings Corp. The Company holds two first lien term loans, a first lien delayed draw and a first lien revolver in Diligent Corporation and preferred equity in Diligent Preferred Issuer Inc.
[33] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of September 30, 2025 and December 31, 2024, along with transactions during the nine months ended September 30, 2025 in which the issuer was a non-controlled/affiliated investment, is as follows:
Portfolio CompanyFair Value at December 31, 2024Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2025Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$19,156 $— $— $(820)$18,336 $— $994 $— $— 
Sierra Hamilton Holdings Corporation2,000 — — — 2,000 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC91,620 5,465 — (22,735)74,350 — 3,171 2,279 188 
Total Non-Controlled/Affiliated Investments$112,776 $5,465 $ $(23,555)$94,686 $ $4,165 $2,279 $188 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind (“PIK”) interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[34] Denotes investments in which the Company is an “Affiliated Person”, as defined in the Investment Company Act of 1940, as amended (the "1940 Act"), due to owning or holding the power to vote 5.0% or more of the outstanding voting securities of the investment but not controlling the company. Fair value as of December 31, 2024 and December 31, 2023 along with transactions during the year ended December 31, 2024 in which the issuer was a non-controlled/affiliated investment is as follows:
Portfolio CompanyFair Value at December 31, 2023Gross
Additions (A)
Gross
Redemptions
(B)
Net Change In Unrealized Appreciation (Depreciation)Fair Value at December 31, 2024Net Realized Gains (Losses)Interest
Income
Dividend
Income
Other
Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$17,873 $— $(50)$1,333 $19,156 $— $1,432 $— $— 
Sierra Hamilton Holdings Corporation2,000 — — — 2,000 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC113,786 16,409 — (38,575)91,620 — 3,659 5,843 250 
Total Non-Controlled/Affiliated Investments$133,659 $16,409 $(50)$(37,242)$112,776 $ $5,091 $5,843 $250 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, payment-in-kind (“PIK”) interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[35] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Eclipse Buyer, Inc., a wholly-owned subsidiary of Eclipse Topco, Inc. The Company's preferred equity investment is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2025, the Company's stated value of it's equity investment, plus unpaid compounded dividends, was $2,094.
[36] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan, a first lien revolver and a first lien delayed draw in Eclipse Buyer, Inc., a wholly-owned subsidiary of Eclipse Topco, Inc.
[37] The Company holds ordinary shares and Class B-1 and Class B-2 of preferred equity in TVG-Edmentum Holdings, LLC and subordinated notes in Edmentum Ultimate Holdings, LLC, a wholly-owned subsidiary of TVG-Edmentum Holdings, LLC. As of September 30, 2025, the Company's stated value of the Company's Class B-1 and Class B-2 preferred equity investments, plus unpaid compounded dividends, was $48,080 and $29,707, respectively.
[38] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and three first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[39] The Company holds ordinary shares in FS WhiteWater Holdings, LLC, and a first lien term loan, a first lien revolver, and five first lien delayed draws in FS WhiteWater Borrower, LLC, a partially-owned subsidiary of FS WhiteWater Holdings, LLC.
[40] The Company holds an LP Interest in Firebird Co-Invest L.P. and holds a first lien term loan, a first lien delayed and a first lien revolver in Firebird Acquisition Corp, Inc., a wholly-owned subsidiary of Firebird Co-Invest L.P. .
[41] The Company's common equity investment in HBWM Holdings, LLC. is entitled to receive cumulative return that are calculated using the unreturned original investment plus any unpaid capitalized dividends. As of September 30, 2025, the Company's unreturned original investment, plus any unpaid compounded dividends, was $4,767.
[42] Investment is held by NMF HB, Inc.
[43] Investment is held by NMF HB, Inc.
[44] The Company's preferred equity investment in Knockout Intermediate Holdings I, Inc. is entitled to receive cumulative preferred dividends that are calculated using the stated value of the Company's equity investment plus the aggregate unpaid compounded dividends as of the date of determination. As of September 30, 2025, the Company's stated value of it's share, plus unpaid compounded dividends, was $12,400.
[45] The Company holds preferred equity in Knockout Intermediate Holdings I Inc. and a first lien term loan, a first lien revolver and two first lien delayed draws in Kaseya, Inc., a wholly-owned subsidiary of Knockout Intermediate Holdings I Inc.
[46] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as a second lien Tranche A Term Loan in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp. The second lien Tranche A Term Loan is entitled to receive 20% of the interest earned on the first lien Tranche A Term Loan, which accrues interest at a rate of SOFR + 5.00%, and 20% of the interest earned on the first lien Tranche B Term Loan, which accrues interest at a rate of SOFR + 6.00%.
[47] Denotes investments in which the Company "controls", as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of September 30, 2025 and December 31, 2024, along with transactions during the nine months ended September 30, 2025 in which the issuer was a controlled investment, is as follows:
Portfolio Company (1)Fair Value at December 31, 2024Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2025Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
National HME, Inc./NHME Holdings Corp.$3,000 $— $— $— $3,000 $— $— $— $— 
New Benevis Topco, LLC / New Benevis Holdco, Inc.140,102 13,606 — (1,916)151,792 — 10,489 — 1,383 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,076 6,159 — (5,901)63,334 — 4,260 — 375 
NM NL Holdings, L.P.104,512 — — 1,366 105,878 — — 6,564 — 
NM GP Holdco, LLC322 — — 71 393 — — 33 — 
NM YI LLC9,960 — — (1,287)8,673 — — 674 — 
NMFC Senior Loan Program III LLC160,000 — — — 160,000 — — 17,000 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 11,521 — 
UniTek Global Services, Inc.107,524 69,314 (60,582)(46,166)70,090 38,898 516 7,781 820 
Total Controlled Investments$700,896 $89,079 $(60,582)$(53,833)$675,560 $38,898 $15,265 $43,573 $2,578 
(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[48] The Company holds ordinary shares and warrants in NHME Holdings Corp., as well as a second lien Tranche A Term Loan in National HME, Inc., a wholly-owned subsidiary of NHME Holdings Corp. The second lien Tranche A Term Loan is entitled to receive 20% of the interest earned on the first lien Tranche A Term Loan, which accrues interest at a rate of SOFR + 5.00%, and 20% of the interest earned on the first lien Tranche B Term Loan, which accrues interest at a rate of SOFR + 6.00%.
[49] Denotes investments in which the Company is in “Control”, as defined in the 1940 Act, due to owning or holding the power to vote more than 25.0% of the outstanding voting securities of the investment. Fair value as of December 31, 2024 and December 31, 2023 along with transactions during the year ended December 31, 2024 in which the issuer was a controlled investment, is as follows:
Portfolio CompanyFair Value at December 31, 2023Gross
Additions
(A)
Gross
Redemptions
(B)
Net Change In
Unrealized
Appreciation
(Depreciation)
Fair Value at December 31, 2024Net Realized Gains (Losses)Interest
Income
Dividend
Income
Other
Income
Haven Midstream LLC / Haven Midstream Holdings LLC / QID TRH Holdings LLC $3,419 $— $— $(3,419)$— $4,981 $— $— $41 
National HME, Inc./NHME Holdings Corp.3,000 — — — 3,000 — — — — 
New Benevis Topco, LLC / New Benevis Holdco, Inc.135,401 10,595 — (5,894)140,102 — 12,934 — 375 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,170 7,005 — (7,099)63,076 — 5,382 — 500 
NM APP CANADA CORP— — (7)— 31 — — — 
NM CLFX LP11,731 — (12,279)548 — (2,461)— 24 845 
NM NL Holdings, L.P.96,071 — (2,123)10,564 104,512 (548)— 8,116 181 
NM GP Holdco, LLC1,048 — (11)(715)322 (3)— 89 — 
NM YI LLC9,550 — — 410 9,960 — — 879 — 
NMFC Senior Loan Program III LLC140,000 20,000 — — 160,000 — — 23,304 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 16,228 — 
UniTek Global Services, Inc.91,999 9,577 — 5,948 107,524 — 3,133 6,446 1,450 
Total Controlled Investments$667,796 $47,177 $(14,413)$336 $700,896 $2,000 $21,449 $55,086 $3,392 

(A)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest or dividends, the amortization of discounts, reorganizations or restructurings and the movement of an existing portfolio company into this category from a different category.
(B)Gross redemptions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, reorganizations or restructurings and the movement of an existing portfolio company out of this category into a different category.
[50] Investment is held by New Mountain Net Lease Corporation.
[51] Investment is held by New Mountain Net Lease Corporation.
[52] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of September 30, 2025, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $16,059 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan, undrawn revolver and drawn revolver is $19,243, $7,522, $1,311 and $92, respectively. See Note 2. Summary of Significant Accounting Policies, for details
[53] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2024, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $15,057 and the Nelipak Holding Company first lien term loan, drawn revolver, undrawn delayed draw term loan and undrawn revolver is $17,109, $406 $6,638 and $833, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[54] The Company holds ordinary shares in OA Topco, L.P., and three first lien term loans and a first lien revolver in OA Buyer, Inc., a wholly-owned subsidiary of OA Topco, L.P.
[55] Investment is on non-accrual status as of September 30, 2025. See Note 3. Investments, for details.
[56] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $13,500 as of September 30, 2025. See Note 2. Summary of Significant Accounting Policies, for details.
[57] Investment is on non-accrual status. See Note 3. Investments, for details.
[58] The Company holds one security purchased under a collateralized agreement to resell on its Consolidated Statement of Assets and Liabilities with a cost basis of $30,000 and a fair value of $13,500 as of December 31, 2024. See Note 2. Summary of Significant Accounting Policies, for details.
[59] Investment is held by NMF Permian Holdings, LLC.
[60] Investment is held by NMF Permian Holdings, LLC.
[61] The Company holds ordinary shares in Pioneer Topco I, L.P., and two first lien term loans and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[62] The Company holds ordinary shares in Pioneer Topco I, L.P., and two first lien term loans and a first lien revolver in Pioneer Buyer I, LLC, a wholly-owned subsidiary of Pioneer Topco I, L.P.
[63] Investment is held by NMF Pioneer, Inc.
[64] Investment is held by NMF Pioneer, Inc.