v3.26.3
Investments - NMFC Senior Loan Program IV LLC (Details)
€ in Thousands, £ in Thousands, $ in Thousands
 3 Months Ended 7 Months Ended 9 Months Ended
Jul. 11, 2025
USD ($)
Sep. 30, 2026
USD ($)
Jul. 10, 2025
USD ($)
Sep. 30, 2026
USD ($)
Sep. 30, 2026
EUR (€)
 [3],[4],[11],[20],[52]
Sep. 30, 2026
GBP (£)
 [3],[4],[11],[20],[52]
Dec. 31, 2025
USD ($)
Dec. 31, 2025
EUR (€)
 [7],[8],[12]
Dec. 31, 2025
GBP (£)
 [7],[8],[12],[16],[51]
Dec. 31, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2021
USD ($)
Mar. 31, 2021
USD ($)
May 03, 2013
USD ($)
Schedule of Investments [Line Items]                            
Cost   $ 2,453,990 [1]   $ 2,453,990 [1]     $ 2,912,115 [2]              
Investments at fair value   2,259,962 [1]   2,259,962 [1]     2,742,013 [2]              
Investment, Identifier [Axis]: AAC Lender Holdings, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[5]   0   0                    
Investments at fair value [3],[4],[5]   0   0                    
Investment, Identifier [Axis]: AAC Lender Holdings, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [6],[7],[8]             0              
Investments at fair value [6],[7],[8]             0              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (37) [3],[4],[9]   (37) [3],[4],[9]     (37) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   3,659 [3],[4],[9],[11]   3,659 [3],[4],[9],[11]     3,659 [7],[8],[10],[12]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   9,402 [3],[13]   9,402 [3],[13]     22,398 [7],[14],[15]              
Investments at fair value   9,426 [3],[13]   9,426 [3],[13]     22,502 [7],[14],[15]              
Principal amount   9,426 [3],[11],[13]   9,426 [3],[11],[13]     22,502 [7],[12],[14],[15]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   7,223 [3],[13]   7,223 [3],[13]     19,932 [7],[8],[16]              
Investments at fair value   7,244 [3],[13]   7,244 [3],[13]     20,009 [7],[8],[16]              
Principal amount   7,244 [3],[11],[13]   7,244 [3],[11],[13]     20,009 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   5,938 [3],[17],[18]   5,938 [3],[17],[18]     9,463 [7],[19]              
Investments at fair value   5,955 [3],[17],[18]   5,955 [3],[17],[18]     9,500 [7],[19]              
Principal amount   5,955 [3],[11],[17],[18]   5,955 [3],[11],[17],[18]     9,500 [7],[12],[19]              
Investment, Identifier [Axis]: AAH Topco, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   3,474 [3],[4],[20]   3,474 [3],[4],[20]     7,267 [7],[19]              
Investments at fair value   3,482 [3],[4],[20]   3,482 [3],[4],[20]     7,300 [7],[19]              
Principal amount   3,482 [3],[4],[11],[20]   3,482 [3],[4],[11],[20]     7,300 [7],[12],[19]              
Investment, Identifier [Axis]: AAH Topco, LLC | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost   7,499 [3],[13]   7,499 [3],[13]     17,527 [7],[8],[16]              
Investments at fair value   7,430 [3],[13]   7,430 [3],[13]     17,418 [7],[8],[16]              
Principal amount   7,543 [3],[11],[13]   7,543 [3],[11],[13]     17,649 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AAH Topco, LLC | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost   883 [3],[4],[20]   883 [3],[4],[20]     6,873 [7],[19]              
Investments at fair value   875 [3],[4],[20]   875 [3],[4],[20]     6,831 [7],[19]              
Principal amount   888 [3],[4],[11],[20]   888 [3],[4],[11],[20]     6,921 [7],[12],[19]              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             2,307              
Investments at fair value [7],[8],[10]             1,864              
Principal amount [7],[8],[10],[12]             2,330              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[21]             0              
Investments at fair value [7],[8],[10],[21]             (5)              
Principal amount [7],[8],[10],[12],[21]             24              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             22,547              
Investments at fair value [7],[14],[15]             18,114              
Principal amount [7],[12],[14],[15]             22,643              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             4,319              
Investments at fair value [7],[8],[16]             3,477              
Principal amount [7],[8],[12],[16]             4,346              
Investment, Identifier [Axis]: ACI Group Holdings, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,994              
Investments at fair value [7],[8],[16]             3,211              
Principal amount [7],[8],[12],[16]             4,014              
Investment, Identifier [Axis]: ACI Parent Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[21]             20,124              
Investments at fair value [7],[8],[21]             2,087              
Principal amount             20,249              
Investment, Identifier [Axis]: AI Altius US Bidco, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,051              
Investments at fair value [7],[8],[16]             3,062              
Principal amount [7],[8],[12],[16]             3,062              
Investment, Identifier [Axis]: AI Altius US Bidco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,077              
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   8,666   8,666                    
Investments at fair value [3],[17],[18]   8,664   8,664                    
Principal amount [3],[11],[17],[18]   8,697   8,697                    
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   403   403                    
Investments at fair value [3],[4],[9],[20]   403   403                    
Principal amount [3],[4],[9],[11],[20]   405   405                    
Investment, Identifier [Axis]: AWP Group Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4)   (4)                    
Investments at fair value [3],[4],[9]   (4)   (4)                    
Principal amount [3],[4],[9],[11]   959   959                    
Investment, Identifier [Axis]: Acumatica Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   13,759 [3],[17],[18]   13,759 [3],[17],[18]     39,188 [7],[14],[15]              
Investments at fair value   13,713 [3],[17],[18]   13,713 [3],[17],[18]     39,188 [7],[14],[15]              
Principal amount   13,759 [3],[11],[17],[18]   13,759 [3],[11],[17],[18]     39,188 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Acumatica Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   (31) [3],[4],[9]   (31) [3],[4],[9]     0 [7],[8],[10]              
Principal amount   9,403 [3],[4],[9],[11]   9,403 [3],[4],[9],[11]     9,403 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   4,748 [3],[4],[20]   4,748 [3],[4],[20]     4,743 [7],[8],[16]              
Investments at fair value   4,780 [3],[4],[20]   4,780 [3],[4],[20]     4,780 [7],[8],[16]              
Principal amount   4,780 [3],[4],[11],[20]   4,780 [3],[4],[11],[20]     4,780 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   285 [3],[4],[9],[20]   285 [3],[4],[9],[20]     119 [7],[8],[10],[16]              
Investments at fair value   288 [3],[4],[9],[20]   288 [3],[4],[9],[20]     120 [7],[8],[10],[16]              
Principal amount   288 [3],[4],[9],[11],[20]   288 [3],[4],[9],[11],[20]     120 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   760 [3],[4],[9],[11]   760 [3],[4],[9],[11]     1,048 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Adelaide Borrower, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (7) [3],[4],[9]   (7) [3],[4],[9]     (5) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   667 [3],[4],[9],[11]   667 [3],[4],[9],[11]     547 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Alegeus Technologies Holdings Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             8,297              
Investments at fair value [7],[8],[16]             8,382              
Principal amount [7],[8],[12],[16]             8,382              
Investment, Identifier [Axis]: Ambrosia Holdco Corp. | Class A-1 Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   1,348   1,348                    
Investments at fair value [3],[18]   37   37                    
Investment, Identifier [Axis]: Ambrosia Holdco Corp. | Class A-1 Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,300   1,300                    
Investments at fair value [3],[4]   36   36                    
Investment, Identifier [Axis]: Ambrosia Topco LLC | Class A-1 common units 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15]             1,348              
Investments at fair value [7],[15]             590              
Investment, Identifier [Axis]: Ambrosia Topco LLC | Class A-1 common units 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             1,300              
Investments at fair value [7],[8]             569              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9]   (10) [3],[4],[9]     (10) [7],[8],[10]              
Investments at fair value   (109) [3],[4],[9]   (109) [3],[4],[9]     (15) [7],[8],[10]              
Principal amount   1,969 [3],[4],[9],[11]   1,969 [3],[4],[9],[11]     1,969 [7],[8],[10],[12]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   18,596 [3],[4],[20]   18,596 [3],[4],[20]     18,729 [7],[8],[16]              
Investments at fair value   17,589 [3],[4],[20]   17,589 [3],[4],[20]     18,626 [7],[8],[16]              
Principal amount   18,623 [3],[4],[11],[20]   18,623 [3],[4],[11],[20]     18,769 [7],[8],[12],[16]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,174 [3],[17],[18]   5,174 [3],[17],[18]     5,211 [7],[14],[15]              
Investments at fair value   4,895 [3],[17],[18]   4,895 [3],[17],[18]     5,183 [7],[14],[15]              
Principal amount   5,183 [3],[11],[17],[18]   5,183 [3],[11],[17],[18]     5,223 [7],[12],[14],[15]              
Investment, Identifier [Axis]: AmeriVet Partners Management, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   679 [3],[4],[20]   679 [3],[4],[20]     684 [7],[8],[16]              
Investments at fair value   643 [3],[4],[20]   643 [3],[4],[20]     681 [7],[8],[16]              
Principal amount   681 [3],[4],[11],[20]   681 [3],[4],[11],[20]     686 [7],[8],[12],[16]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien                            
Schedule of Investments [Line Items]                            
Principal amount   31,406   31,406                    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[5],[9]   0 [3],[4],[5],[9]     0 [6],[7],[8],[10]              
Investments at fair value   0 [3],[4],[5],[9]   0 [3],[4],[5],[9]     0 [6],[7],[8],[10]              
Principal amount   2,652 [3],[4],[5],[9],[11]   2,652 [3],[4],[5],[9],[11]     2,652 [6],[7],[8],[10],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   29,842 [3],[4],[20]   29,842 [3],[4],[20]     29,842 [7],[8],[16]              
Investments at fair value   16,000 [3],[4],[20]   16,000 [3],[4],[20]     17,999 [7],[8],[16]              
Principal amount   29,879 [3],[4],[11],[20]   29,879 [3],[4],[11],[20]     29,879 [7],[8],[12],[16]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,527 [3],[4]   1,527 [3],[4]     1,527 [7],[8]              
Investments at fair value   0 [3],[4]   0 [3],[4]     0 [7],[8]              
Principal amount   1,527 [3],[4],[11]   1,527 [3],[4],[11]     1,527 [7],[8],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Principal amount                     $ 17,927 $ 13,479    
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4]   0 [3],[4]     0 [7],[8]              
Investments at fair value   0 [3],[4]   0 [3],[4]     0 [7],[8]              
Principal amount   5,230 [3],[4],[11]   5,230 [3],[4],[11]     5,230 [7],[8],[12]              
Investment, Identifier [Axis]: American Achievement Corporation (aka AAC Holding Corp.) | Subordinated | Non-accrual status                            
Schedule of Investments [Line Items]                            
Principal amount                         $ 5,230  
Investment, Identifier [Axis]: Anaplan, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             10,456              
Investments at fair value [7],[14],[15]             10,513              
Principal amount [7],[12],[14],[15]             10,513              
Investment, Identifier [Axis]: Associations Finance, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   29,787   29,787                    
Investments at fair value [3],[4],[20]   29,794   29,794                    
Principal amount [3],[4],[11],[20]   29,794   29,794                    
Investment, Identifier [Axis]: Associations Finance, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   2,198   2,198                    
Investments at fair value [3],[4],[9]   2,199   2,199                    
Principal amount [3],[4],[9],[11]   2,199   2,199                    
Investment, Identifier [Axis]: Associations Finance, Inc. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   10,187   10,187                    
Investments at fair value [3],[4]   10,200   10,200                    
Principal amount [3],[4],[11]   10,200   10,200                    
Investment, Identifier [Axis]: Associations Finance, Inc. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,890   3,890                    
Investments at fair value [3],[4]   3,895   3,895                    
Principal amount [3],[4],[11]   3,895   3,895                    
Investment, Identifier [Axis]: Associations, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             48,915              
Investments at fair value [7],[8],[16]             48,932              
Principal amount [7],[8],[12],[16]             48,932              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,639              
Investments at fair value [7],[8],[10]             1,639              
Principal amount [7],[8],[10],[12]             1,639              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (1) [3],[4],[9]   (1) [3],[4],[9]     (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,612 [3],[4],[9],[11]   1,612 [3],[4],[9],[11]     2,186 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Associations, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9]   (2) [3],[4],[9]     (2) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   3,077 [3],[4],[9],[11]   3,077 [3],[4],[9],[11]     3,077 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Associations, Inc. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             9,158              
Investments at fair value [7],[8]             9,356              
Principal amount [7],[8],[12]             9,173              
Investment, Identifier [Axis]: Associations, Inc. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             3,497              
Investments at fair value [7],[8]             3,593              
Principal amount [7],[8],[12]             3,503              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[22]             (6)              
Investments at fair value [7],[8],[10],[22]             0              
Principal amount [7],[8],[10],[12],[22]             790              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   4,421 [3],[17],[18]   4,421 [3],[17],[18]     4,453 [7],[14],[15]              
Investments at fair value   4,429 [3],[17],[18]   4,429 [3],[17],[18]     4,463 [7],[14],[15]              
Principal amount   4,429 [3],[11],[17],[18]   4,429 [3],[11],[17],[18]     4,463 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,357 [3],[4],[20]   3,357 [3],[4],[20]     3,377 [7],[8],[16]              
Investments at fair value   3,385 [3],[4],[20]   3,385 [3],[4],[20]     3,411 [7],[8],[16]              
Principal amount   3,385 [3],[4],[11],[20]   3,385 [3],[4],[11],[20]     3,411 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   1,310 [3],[4],[20]   1,310 [3],[4],[20]     1,319 [7],[8],[16]              
Investments at fair value   1,318 [3],[4],[20]   1,318 [3],[4],[20]     1,328 [7],[8],[16]              
Principal amount   1,318 [3],[4],[11],[20]   1,318 [3],[4],[11],[20]     1,328 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Atlas AU Bidco Pty Ltd| First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[23]   (6)   (6)                    
Investments at fair value [3],[4],[9],[23]   0   0                    
Principal amount [3],[4],[9],[11],[23]   790   790                    
Investment, Identifier [Axis]: Auctane Inc. (fka Stamps.com Inc.) | First lien                            
Schedule of Investments [Line Items]                            
Cost   31,584 [3],[4],[20]   31,584 [3],[4],[20]     35,985 [7],[8],[16]              
Investments at fair value   31,576 [3],[4],[20]   31,576 [3],[4],[20]     36,155 [7],[8],[16]              
Principal amount   31,814 [3],[4],[11],[20]   31,814 [3],[4],[11],[20]     36,155 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   2,367   2,367                    
Investments at fair value [3],[4],[9],[20]   2,383   2,383                    
Principal amount [3],[4],[9],[11],[20]   2,383   2,383                    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (10)   (10)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   1,324   1,324                    
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,122              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (26)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,707              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   15,398 [3],[17],[18]   15,398 [3],[17],[18]     15,504 [7],[14],[15]              
Investments at fair value   15,484 [3],[17],[18]   15,484 [3],[17],[18]     15,602 [7],[14],[15]              
Principal amount   15,484 [3],[11],[17],[18]   15,484 [3],[11],[17],[18]     15,602 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,715 [3],[17],[18]   5,715 [3],[17],[18]     5,756 [7],[14],[15]              
Investments at fair value   5,739 [3],[17],[18]   5,739 [3],[17],[18]     5,782 [7],[14],[15]              
Principal amount   5,739 [3],[11],[17],[18]   5,739 [3],[11],[17],[18]     5,782 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Baker Tilly Advisory Group, LP | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   2,476 [3],[4],[20]   2,476 [3],[4],[20]     376 [7],[8],[16]              
Investments at fair value   2,488 [3],[4],[20]   2,488 [3],[4],[20]     378 [7],[8],[16]              
Principal amount   2,488 [3],[4],[11],[20]   2,488 [3],[4],[11],[20]     378 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC) | First lien                            
Schedule of Investments [Line Items]                            
Cost   3,031 [3],[4],[20]   3,031 [3],[4],[20]     3,038 [7],[8],[16]              
Investments at fair value   3,035 [3],[4],[20]   3,035 [3],[4],[20]     3,046 [7],[8],[16]              
Principal amount   3,035 [3],[4],[11],[20]   3,035 [3],[4],[11],[20]     3,046 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bamboo Health Holdings, LLC (f/k/a Appriss Health, LLC) | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9]   (4) [3],[4],[9]     (4) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   417 [3],[4],[9],[11]   417 [3],[4],[9],[11]     417 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Bonterra LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             14,955              
Investments at fair value [7],[14],[15]             14,952              
Principal amount [7],[12],[14],[15]             14,989              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   520   520                    
Investments at fair value [3],[4],[9]   512   512                    
Principal amount [3],[4],[9],[11]   521   521                    
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,629              
Investments at fair value [7],[8],[10],[16]             1,625              
Principal amount [7],[8],[10],[12],[16]             1,629              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             244              
Investments at fair value [7],[8],[10]             244              
Principal amount [7],[8],[10],[12]             244              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3)   (3)                    
Investments at fair value [3],[4],[9]   (19)   (19)                    
Principal amount [3],[4],[9],[11]   1,107   1,107                    
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             0              
Investment, Identifier [Axis]: Bonterra LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             (3)              
Principal amount [7],[8],[10],[12]             1,384              
Investment, Identifier [Axis]: Bonterra LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   14,846   14,846                    
Investments at fair value [3],[17],[18]   14,615   14,615                    
Principal amount [3],[11],[17],[18]   14,876   14,876                    
Investment, Identifier [Axis]: Bonterra LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,620   1,620                    
Investments at fair value [3],[4],[20]   1,592   1,592                    
Principal amount [3],[4],[11],[20]   1,620   1,620                    
Investment, Identifier [Axis]: Brave Parent Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   20,890 [3],[24]   20,890 [3],[24]     21,040 [7],[25]              
Investments at fair value   20,542 [3],[24]   20,542 [3],[24]     21,124 [7],[25]              
Principal amount   20,963 [3],[11],[24]   20,963 [3],[11],[24]     21,124 [7],[12],[25]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   127 [3],[4],[9]   127 [3],[4],[9]     127 [7],[8],[10]              
Investments at fair value   125 [3],[4],[9]   125 [3],[4],[9]     125 [7],[8],[10]              
Principal amount   125 [3],[4],[9],[11]   125 [3],[4],[9],[11]     125 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (6)   (6)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   811   811                    
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             822              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             811              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,961 [3],[17],[18]   8,961 [3],[17],[18]     13,177 [7],[14],[15]              
Investments at fair value   8,879 [3],[17],[18]   8,879 [3],[17],[18]     13,206 [7],[14],[15]              
Principal amount   8,879 [3],[11],[17],[18]   8,879 [3],[11],[17],[18]     13,206 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,395 [3],[17],[18]   3,395 [3],[17],[18]     8,976 [7],[14],[15]              
Investments at fair value   3,398 [3],[17],[18]   3,398 [3],[17],[18]     8,879 [7],[14],[15]              
Principal amount   3,398 [3],[11],[17],[18]   3,398 [3],[11],[17],[18]     8,879 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   1,023 [3],[4],[20]   1,023 [3],[4],[20]     3,395 [7],[14],[15]              
Investments at fair value   1,025 [3],[4],[20]   1,025 [3],[4],[20]     3,398 [7],[14],[15]              
Principal amount   1,025 [3],[4],[11],[20]   1,025 [3],[4],[11],[20]     3,398 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   759 [3],[17],[18]   759 [3],[17],[18]     1,023 [7],[8],[16]              
Investments at fair value   761 [3],[17],[18]   761 [3],[17],[18]     1,025 [7],[8],[16]              
Principal amount   761 [3],[11],[17],[18]   761 [3],[11],[17],[18]     1,025 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 5                            
Schedule of Investments [Line Items]                            
Cost   340 [3],[17],[18]   340 [3],[17],[18]     759 [7],[14],[15]              
Investments at fair value   341 [3],[17],[18]   341 [3],[17],[18]     761 [7],[14],[15]              
Principal amount   341 [3],[11],[17],[18]   341 [3],[11],[17],[18]     761 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 6                            
Schedule of Investments [Line Items]                            
Cost   271 [3],[17],[18]   271 [3],[17],[18]     340 [7],[14],[15]              
Investments at fair value   272 [3],[17],[18]   272 [3],[17],[18]     341 [7],[14],[15]              
Principal amount   272 [3],[11],[17],[18]   272 [3],[11],[17],[18]     341 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Bullhorn, Inc. | First lien 7                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             271              
Investments at fair value [7],[14],[15]             272              
Principal amount [7],[12],[14],[15]             272              
Investment, Identifier [Axis]: CFS Management, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,519 [3],[4],[20]   12,519 [3],[4],[20]     12,124 [7],[8],[16]              
Investments at fair value   10,327 [3],[4],[20]   10,327 [3],[4],[20]     10,608 [7],[8],[16]              
Principal amount   12,518 [3],[4],[11],[20]   12,518 [3],[4],[11],[20]     12,124 [7],[8],[12],[16]              
Investment, Identifier [Axis]: CFS Management, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,739 [3],[17],[18]   3,739 [3],[17],[18]     3,621 [7],[14],[15]              
Investments at fair value   3,077 [3],[17],[18]   3,077 [3],[17],[18]     3,161 [7],[14],[15]              
Principal amount   3,730 [3],[11],[17],[18]   3,730 [3],[11],[17],[18]     3,612 [7],[12],[14],[15]              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             8,553              
Investments at fair value [7],[14],[15]             8,582              
Principal amount [7],[12],[14],[15]             8,582              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,078              
Investments at fair value [7],[8],[10],[16]             1,089              
Principal amount [7],[8],[10],[12],[16]             1,089              
Investment, Identifier [Axis]: CG Group Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (1)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             113              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             6,423              
Investments at fair value [7],[14],[15]             6,451              
Principal amount [7],[12],[14],[15]             6,451              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,629              
Investment, Identifier [Axis]: CRCI Longhorn Holdings, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,086              
Investment, Identifier [Axis]: Capstone Borrower, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   3,286   3,286                    
Investments at fair value [4],[20]   3,621   3,621                    
Principal amount [4],[11],[20]   3,763   3,763                    
Investment, Identifier [Axis]: Cardinal Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   11,500 [13]   11,500 [13]     11,581 [19]              
Investments at fair value   10,358 [13]   10,358 [13]     11,366 [19]              
Principal amount   11,517 [11],[13]   11,517 [11],[13]     11,609 [12],[19]              
Investment, Identifier [Axis]: Cardinal Parent, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost   9,732 [3],[13]   9,732 [3],[13]     9,721 [7],[19]              
Investments at fair value   8,546 [3],[13]   8,546 [3],[13]     9,653 [7],[19]              
Principal amount   9,767 [3],[11],[13]   9,767 [3],[11],[13]     9,767 [7],[12],[19]              
Investment, Identifier [Axis]: Centegix Intermediate II, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   239   239                    
Investments at fair value [3],[17],[18]   239   239                    
Principal amount [3],[11],[17],[18]   240   240                    
Investment, Identifier [Axis]: Centegix Intermediate II, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   (6)   (6)                    
Principal amount [3],[4],[9],[11]   1,177   1,177                    
Investment, Identifier [Axis]: CentralSquare Technologies, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   35,951 [3],[17],[18]   35,951 [3],[17],[18]     36,162 [7],[14],[15]              
Investments at fair value   36,234 [3],[17],[18]   36,234 [3],[17],[18]     36,497 [7],[14],[15]              
Principal amount   36,234 [3],[11],[17],[18]   36,234 [3],[11],[17],[18]     36,497 [7],[12],[14],[15]              
Investment, Identifier [Axis]: CentralSquare Technologies, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (50) [3],[4],[9]   (50) [3],[4],[9]     (50) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   3,980 [3],[4],[9],[11]   3,980 [3],[4],[9],[11]     3,980 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   443   443                    
Investments at fair value [3],[4],[9],[20]   448   448                    
Principal amount [3],[4],[9],[11],[20]   448   448                    
Investment, Identifier [Axis]: Ciklum Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (32) [3],[4],[9],[23]   (32) [3],[4],[9],[23]     (37) [7],[8],[10],[22]              
Investments at fair value   0 [3],[4],[9],[23]   0 [3],[4],[9],[23]     0 [7],[8],[10],[22]              
Principal amount   2,540 [3],[4],[9],[11],[23]   2,540 [3],[4],[9],[11],[23]     2,989 [7],[8],[10],[12],[22]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   9,294 [3],[17],[18]   9,294 [3],[17],[18]     9,351 [7],[14],[15]              
Investments at fair value   9,368 [3],[17],[18]   9,368 [3],[17],[18]     9,440 [7],[14],[15]              
Principal amount   9,368 [3],[11],[17],[18]   9,368 [3],[11],[17],[18]     9,440 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Ciklum Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,657 [3],[4],[20]   4,657 [3],[4],[20]     5,280 [7],[8],[16]              
Investments at fair value   4,701 [3],[4],[20]   4,701 [3],[4],[20]     5,339 [7],[8],[16]              
Principal amount   4,701 [3],[4],[11],[20]   4,701 [3],[4],[11],[20]     5,339 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             1,279              
Investments at fair value [7],[8],[16]             1,291              
Principal amount [7],[8],[12],[16]             1,291              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             9              
Investments at fair value [7],[8],[10],[16]             9              
Principal amount [7],[8],[10],[12],[16]             9              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             602              
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   603   603                    
Investments at fair value [3],[4],[20]   608   608                    
Principal amount [3],[4],[11],[20]   608   608                    
Investment, Identifier [Axis]: Community Management Holdings MidCo 2, LLC | First lien1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,271   1,271                    
Investments at fair value [3],[4],[20]   1,282   1,282                    
Principal amount [3],[4],[11],[20]   1,282   1,282                    
Investment, Identifier [Axis]: Compsych Investments Corp | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (14)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,253              
Investment, Identifier [Axis]: Compsych Investments Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost   7,687 [3],[17],[18]   7,687 [3],[17],[18]     7,741 [7],[14],[15]              
Investments at fair value   7,731 [3],[17],[18]   7,731 [3],[17],[18]     7,790 [7],[14],[15]              
Principal amount   7,731 [3],[11],[17],[18]   7,731 [3],[11],[17],[18]     7,790 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Compsych Investments Corp. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (14)   (14)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   2,253   2,253                    
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,971 [3],[18]   12,971 [3],[18]     13,475 [7],[14],[15]              
Investments at fair value   1,444 [3],[18]   1,444 [3],[18]     9,869 [7],[14],[15]              
Principal amount   13,373 [3],[11],[18]   13,373 [3],[11],[18]     13,518 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,160 [3],[18]   2,160 [3],[18]     2,244 [7],[14],[15]              
Investments at fair value   241 [3],[18]   241 [3],[18]     1,648 [7],[14],[15]              
Principal amount   2,233 [3],[11],[18]   2,233 [3],[11],[18]     2,257 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Convey Health Solutions, Inc. | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   388   1,075                    
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   1,453 [3],[4],[20]   1,453 [3],[4],[20]     1,463 [7],[8],[16]              
Investments at fair value   1,459 [3],[4],[20]   1,459 [3],[4],[20]     1,470 [7],[8],[16]              
Principal amount   1,459 [3],[4],[11],[20]   1,459 [3],[4],[11],[20]     1,470 [7],[8],[12],[16]              
Investment, Identifier [Axis]: CoreTrust Purchasing Group LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (1)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             147              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             14,123              
Investments at fair value [7],[14],[15]             14,243              
Principal amount [7],[12],[14],[15]             14,243              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   651   651                    
Investments at fair value [3],[4],[9],[20]   659   659                    
Principal amount [3],[4],[9],[11],[20]   659   659                    
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4)   (4)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   330   330                    
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,291              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (12)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             989              
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   14,034   14,034                    
Investments at fair value [3],[17],[18]   14,135   14,135                    
Principal amount [3],[11],[17],[18]   14,135   14,135                    
Investment, Identifier [Axis]: Coupa Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,289   1,289                    
Investments at fair value [3],[4],[20]   1,288   1,288                    
Principal amount [3],[4],[11],[20]   1,288   1,288                    
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   24,079 [3],[17],[18]   24,079 [3],[17],[18]     24,034 [7],[14],[15]              
Investments at fair value   23,794 [3],[17],[18]   23,794 [3],[17],[18]     24,172 [7],[14],[15]              
Principal amount   24,172 [3],[11],[17],[18]   24,172 [3],[11],[17],[18]     24,172 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   5,004 [3],[4],[20]   5,004 [3],[4],[20]     5,001 [7],[8],[16]              
Investments at fair value   4,934 [3],[4],[20]   4,934 [3],[4],[20]     5,012 [7],[8],[16]              
Principal amount   5,012 [3],[4],[11],[20]   5,012 [3],[4],[11],[20]     5,012 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Cronos Crimson Holdings, Inc. (f/k/a NMC Crimson Holdings, Inc.) | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   4,693 [3],[17],[18]   4,693 [3],[17],[18]     4,687 [7],[14],[15]              
Investments at fair value   4,632 [3],[17],[18]   4,632 [3],[17],[18]     4,706 [7],[14],[15]              
Principal amount   4,706 [3],[11],[17],[18]   4,706 [3],[11],[17],[18]     4,706 [7],[12],[14],[15]              
Investment, Identifier [Axis]: DCA Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   962   962                    
Investments at fair value [3],[17],[18]   962   962                    
Principal amount [3],[11],[17],[18]   962   962                    
Investment, Identifier [Axis]: DCA Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   539   539                    
Investments at fair value [3],[4],[20]   539   539                    
Principal amount [3],[4],[11],[20]   539   539                    
Investment, Identifier [Axis]: DCA Investment Holding, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             1,781              
Investments at fair value [7],[14],[15]             1,574              
Principal amount [7],[12],[14],[15]             1,786              
Investment, Identifier [Axis]: DCA Investment Holding, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             994              
Investments at fair value [7],[8],[16]             882              
Principal amount [7],[8],[12],[16]             1,000              
Investment, Identifier [Axis]: DCA TopCo LP | Class A Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   617   617                    
Investments at fair value [3],[18]   617   617                    
Investment, Identifier [Axis]: DCA TopCo LP | Class A Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   345   345                    
Investments at fair value [3],[4]   345   345                    
Investment, Identifier [Axis]: DG Investment Intermediate Holdings 2, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             9,466              
Investments at fair value [7],[8],[16]             9,464              
Principal amount [7],[8],[12],[16]             9,512              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[13]   3,215   3,215                    
Investments at fair value [3],[13]   3,215   3,215                    
Principal amount [3],[11],[13]   3,215   3,215                    
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,580   1,580                    
Investments at fair value [3],[4],[20]   1,587   1,587                    
Principal amount [3],[4],[11],[20]   1,587   1,587                    
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   2,405 [3],[4],[9],[11]   2,405 [3],[4],[9],[11]     2,405 [7],[8],[10],[12]              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             18,149              
Investments at fair value [7],[8],[16]             18,149              
Principal amount [7],[8],[12],[16]             18,149              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             6,797              
Investments at fair value [7],[19]             6,797              
Principal amount [7],[12],[19]             6,797              
Investment, Identifier [Axis]: DOCS, MSO, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,335              
Investments at fair value [7],[8],[16]             3,354              
Principal amount [7],[8],[12],[16]             3,354              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             1,335              
Investments at fair value [7],[14],[15]             1,335              
Principal amount [7],[12],[14],[15]             1,342              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             32              
Investments at fair value [7],[8],[10]             32              
Principal amount [7],[8],[10],[12]             32              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             (3)              
Principal amount [7],[8],[10],[12]             674              
Investment, Identifier [Axis]: DT1 Midco Corp | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             (22)              
Principal amount [7],[8],[10],[12]             4,462              
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   1,326   1,326                    
Investments at fair value [3],[17],[18]   1,321   1,321                    
Principal amount [3],[11],[17],[18]   1,331   1,331                    
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   2,612   2,612                    
Investments at fair value [3],[4],[9]   2,605   2,605                    
Principal amount [3],[4],[9],[11]   2,625   2,625                    
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3)   (3)                    
Investments at fair value [3],[4],[9]   (5)   (5)                    
Principal amount [3],[4],[9],[11]   674   674                    
Investment, Identifier [Axis]: DT1 Midco Corp. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   (14)   (14)                    
Principal amount [3],[4],[9],[11]   1,869   1,869                    
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9]   (10) [3],[4],[9]     (10) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   986 [3],[4],[9],[11]   986 [3],[4],[9],[11]     986 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   12,602 [3],[4],[20]   12,602 [3],[4],[20]     12,686 [7],[8],[16]              
Investments at fair value   12,646 [3],[4],[20]   12,646 [3],[4],[20]     12,746 [7],[8],[16]              
Principal amount   12,646 [3],[4],[11],[20]   12,646 [3],[4],[11],[20]     12,746 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,062 [3],[17],[18]   1,062 [3],[17],[18]     1,069 [7],[14],[15]              
Investments at fair value   1,066 [3],[17],[18]   1,066 [3],[17],[18]     1,074 [7],[14],[15]              
Principal amount   1,066 [3],[11],[17],[18]   1,066 [3],[11],[17],[18]     1,074 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Daxko Acquisition Corporation | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   63 [3],[4]   63 [3],[4]     64 [7],[8]              
Investments at fair value   64 [3],[4]   64 [3],[4]     64 [7],[8]              
Principal amount   64 [3],[4],[11]   64 [3],[4],[11]     64 [7],[8],[12]              
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20],[26]   27,082   27,082                    
Investments at fair value [3],[4],[20],[26]   23,727   23,727                    
Principal amount   27,116   27,116     90,671              
Investment, Identifier [Axis]: Dealer Tire Holdings, LLC | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16],[27]             81,859              
Investments at fair value [7],[8],[16],[27]             87,225              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   37,289 [3],[17],[18]   37,289 [3],[17],[18]     36,543 [7],[14],[15]              
Investments at fair value   31,801 [3],[17],[18]   31,801 [3],[17],[18]     35,715 [7],[14],[15]              
Principal amount   37,413 [3],[11],[17],[18]   37,413 [3],[11],[17],[18]     36,710 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,925 [3],[4],[20]   3,925 [3],[4],[20]     3,846 [7],[8],[16]              
Investments at fair value   3,347 [3],[4],[20]   3,347 [3],[4],[20]     3,760 [7],[8],[16]              
Principal amount   3,938 [3],[4],[11],[20]   3,938 [3],[4],[11],[20]     3,864 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   3,071 [3],[4],[20]   3,071 [3],[4],[20]     2,997 [7],[8],[16]              
Investments at fair value   2,636 [3],[4],[20]   2,636 [3],[4],[20]     2,945 [7],[8],[16]              
Principal amount   3,101 [3],[4],[11],[20]   3,101 [3],[4],[11],[20]     3,027 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Deca Dental Holdings LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,156   1,156                    
Investments at fair value [3],[4],[20]   1,156   1,156                    
Principal amount [3],[4],[11],[20]   1,156   1,156                    
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             9,047              
Investments at fair value [7],[14],[15]             9,045              
Principal amount [7],[12],[14],[15]             9,091              
Investment, Identifier [Axis]: Denali Intermediate Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             (5)              
Principal amount [7],[8],[10],[12]             909              
Investment, Identifier [Axis]: Digicert, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   15,253 [3],[17],[18]   15,253 [3],[17],[18]     15,354 [7],[14],[15]              
Investments at fair value   15,345 [3],[17],[18]   15,345 [3],[17],[18]     15,346 [7],[14],[15]              
Principal amount   15,345 [3],[11],[17],[18]   15,345 [3],[11],[17],[18]     15,462 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Digicert, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9]   (8) [3],[4],[9]     (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (8) [7],[8],[10]              
Principal amount   1,119 [3],[4],[9],[11]   1,119 [3],[4],[9],[11]     1,119 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Diligent Corporation | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,496   3,496                    
Investments at fair value [3],[4],[20]   3,391   3,391                    
Principal amount [3],[4],[11],[20]   3,505   3,505                    
Investment, Identifier [Axis]: Diligent Corporation | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,174 [3],[4],[9]   1,174 [3],[4],[9]     530 [7],[8],[10]              
Investments at fair value   1,140 [3],[4],[9]   1,140 [3],[4],[9]     532 [7],[8],[10]              
Principal amount   1,178 [3],[4],[9],[11]   1,178 [3],[4],[9],[11]     532 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (4)   (4)                    
Investments at fair value [3],[4],[9]   (35)   (35)                    
Principal amount [3],[4],[9],[11]   1,087   1,087                    
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,733              
Investment, Identifier [Axis]: Diligent Corporation | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (13)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,398              
Investment, Identifier [Axis]: Diligent Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             19,763              
Investments at fair value [7],[14],[15]             19,821              
Principal amount [7],[12],[14],[15]             19,821              
Investment, Identifier [Axis]: Diligent Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             3,388              
Investments at fair value [7],[8],[16]             3,398              
Principal amount [7],[8],[12],[16]             3,398              
Investment, Identifier [Axis]: Diligent Preferred Issuer, Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[28]             15,702              
Investments at fair value [7],[8],[28]             15,036              
Principal amount             15,827              
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   22,648   22,648     18,337     $ 19,156        
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   10,628 [3],[17],[18],[29]   10,628 [3],[17],[18],[29]     10,628 [7],[14],[15],[30]              
Investments at fair value   10,628 [3],[17],[18],[29]   10,628 [3],[17],[18],[29]     10,628 [7],[14],[15],[30]              
Principal amount   10,628 [3],[11],[17],[18],[29]   10,628 [3],[11],[17],[18],[29]     10,628 [7],[12],[14],[15],[30]              
Investment, Identifier [Axis]: Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   340 [3],[4],[29]   340 [3],[4],[29]     340 [7],[8],[30]              
Investments at fair value   340 [3],[4],[29]   340 [3],[4],[29]     340 [7],[8],[30]              
Principal amount   340 [3],[4],[11],[29]   340 [3],[4],[11],[29]     340 [7],[8],[12],[30]              
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[29]   4,103   4,103                    
Investments at fair value [3],[4],[29]   11,680   11,680                    
Investment, Identifier [Axis]: Eagle Infrastructure Super HoldCo, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[30]             4,104              
Investments at fair value [7],[8],[30]             7,369              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   7,086 [3],[13],[31]   7,086 [3],[13],[31]     7,082 [7],[19],[32]              
Investments at fair value   7,007 [3],[13],[31]   7,007 [3],[13],[31]     7,113 [7],[19],[32]              
Principal amount   7,113 [3],[11],[13],[31]   7,113 [3],[11],[13],[31]     7,113 [7],[12],[19],[32]              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[31]   (21)   (21)                    
Investments at fair value [3],[4],[9],[31]   (62)   (62)                    
Principal amount [3],[4],[9],[11],[31]   4,190   4,190                    
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[19]             0              
Investments at fair value [7],[10],[19]             0              
Principal amount [7],[10],[12],[19]             1,206              
Investment, Identifier [Axis]: Eclipse Buyer Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (21)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,190              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   145   145                    
Investments at fair value [3],[4]   41   41                    
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             145              
Investments at fair value [7],[8]             0              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series A Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,835   3,835                    
Investments at fair value [3],[4]   3,835   3,835                    
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series A preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             3,335              
Investments at fair value [7],[8]             3,335              
Principal amount   3,835   3,835     3,335              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series B Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   2,565   2,565                    
Investments at fair value [3],[4]   3,068   3,068                    
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. (fka Transcendia Holdings, Inc.) | Series B preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             2,565              
Investments at fair value [7],[8]             3,009              
Principal amount   3,691   3,691     4,116              
Investment, Identifier [Axis]: Eclipse Topco Holdings, Inc. | Series B preferred shares | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   132   374                    
Investment, Identifier [Axis]: Eclipse Topco, Inc. | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[13],[31]   1,620   1,620                    
Investments at fair value [3],[13],[31]   1,616   1,616                    
Investment, Identifier [Axis]: Eclipse Topco, Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[19],[32]             2,207              
Investments at fair value [7],[19],[32]             2,228              
Principal amount   1,632   1,632     2,226              
Investment, Identifier [Axis]: Edmentum Ultimate Holdings, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   30,383 [3],[4],[29],[33]   30,383 [3],[4],[29],[33]     26,596 [7],[8],[30],[34]              
Investments at fair value   30,418 [3],[4],[29],[33]   30,418 [3],[4],[29],[33]     26,646 [7],[8],[30],[34]              
Principal amount   30,418 [3],[4],[11],[29],[33]   30,418 [3],[4],[11],[29],[33]     26,646 [7],[8],[12],[30],[34]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (57) [3],[4],[9]   (57) [3],[4],[9]     (57) [7],[8],[10]              
Investments at fair value   (129) [3],[4],[9]   (129) [3],[4],[9]     (57) [7],[8],[10]              
Principal amount   5,750 [3],[4],[9],[11]   5,750 [3],[4],[9],[11]     5,750 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   35,308 [3],[4],[20]   35,308 [3],[4],[20]     35,292 [7],[8],[16]              
Investments at fair value   34,782 [3],[4],[20]   34,782 [3],[4],[20]     35,226 [7],[8],[16]              
Principal amount   35,582 [3],[4],[11],[20]   35,582 [3],[4],[11],[20]     35,582 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Einstein Parent, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   19,845 [3],[17],[18]   19,845 [3],[17],[18]     19,800 [7],[14],[15]              
Investments at fair value   19,550 [3],[17],[18]   19,550 [3],[17],[18]     19,800 [7],[14],[15]              
Principal amount   20,000 [3],[11],[17],[18]   20,000 [3],[11],[17],[18]     20,000 [7],[12],[14],[15]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   156   156                    
Investments at fair value [3],[4],[9],[20]   158   158                    
Principal amount [3],[4],[9],[11],[20]   158   158                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             2,508              
Investments at fair value [7],[10],[25]             2,533              
Principal amount [7],[10],[12],[25]             2,533              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (12)   (12)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   1,243   1,243                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             64              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             0              
Investments at fair value [7],[10],[25]             0              
Principal amount [7],[10],[12],[25]             191              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (14)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,400              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,338 [3],[24]   8,338 [3],[24]     8,410 [7],[25]              
Investments at fair value   8,370 [3],[24]   8,370 [3],[24]     8,449 [7],[25]              
Principal amount   8,370 [3],[11],[24]   8,370 [3],[11],[24]     8,449 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,644 [3],[4],[20]   4,644 [3],[4],[20]     4,682 [7],[8],[16]              
Investments at fair value   4,667 [3],[4],[20]   4,667 [3],[4],[20]     4,710 [7],[8],[16]              
Principal amount   4,667 [3],[4],[11],[20]   4,667 [3],[4],[11],[20]     4,710 [7],[8],[12],[16]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   2,798 [3],[24]   2,798 [3],[24]     2,822 [7],[25]              
Investments at fair value   2,810 [3],[24]   2,810 [3],[24]     2,836 [7],[25]              
Principal amount   2,810 [3],[11],[24]   2,810 [3],[11],[24]     2,836 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   2,781 [3],[24]   2,781 [3],[24]     2,805 [7],[25]              
Investments at fair value   2,792 [3],[24]   2,792 [3],[24]     2,818 [7],[25]              
Principal amount   2,792 [3],[11],[24]   2,792 [3],[11],[24]     2,818 [7],[12],[25]              
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 5                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   2,682   2,682                    
Investments at fair value [3],[24]   2,704   2,704                    
Principal amount [3],[11],[24]   2,704   2,704                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien 6                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   895   895                    
Investments at fair value [3],[4],[20]   903   903                    
Principal amount [3],[4],[11],[20]   903   903                    
Investment, Identifier [Axis]: FS WhiteWater Borrower, LLC | First lien- Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             837              
Investments at fair value [7],[8],[10],[16]             846              
Principal amount [7],[8],[10],[12],[16]             846              
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[24],[35]   5,000   5,000                    
Investments at fair value [3],[24],[35]   6,117   6,117                    
Investment, Identifier [Axis]: FS WhiteWater Holdings, LLC | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[25],[36]             5,000              
Investments at fair value [7],[25],[36]             5,357              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   8,282 [3],[4],[20]   8,282 [3],[4],[20]     8,169 [7],[8],[16]              
Investments at fair value   8,299 [3],[4],[20]   8,299 [3],[4],[20]     8,167 [7],[8],[16]              
Principal amount   8,299 [3],[4],[11],[20]   8,299 [3],[4],[11],[20]     8,187 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   3,201 [3],[4],[9]   3,201 [3],[4],[9]     1,914 [7],[8],[10]              
Investments at fair value   3,208 [3],[4],[9]   3,208 [3],[4],[9]     1,914 [7],[8],[10]              
Principal amount   3,208 [3],[4],[9],[11]   3,208 [3],[4],[9],[11]     1,919 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (4)              
Investments at fair value [7],[8],[10]             (4)              
Principal amount [7],[8],[10],[12]             1,422              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9]   (4) [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (7) [7],[8],[10]              
Principal amount   1,422 [3],[4],[9],[11]   1,422 [3],[4],[9],[11]     2,814 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Firebird Acquisition Corp, Inc. | First lien - Undrawn1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   1,504   1,504                    
Investment, Identifier [Axis]: Firebird Co-Invest L.P. | LP Interest                            
Schedule of Investments [Line Items]                            
Cost   3,358 [3],[4],[37]   3,358 [3],[4],[37]     3,358 [7],[8],[38]              
Investments at fair value   4,350 [3],[4],[37]   4,350 [3],[4],[37]     3,358 [7],[8],[38]              
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.) | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost [19]             6,463              
Investments at fair value [19]             5,697              
Principal amount [12],[19]             6,474              
Investment, Identifier [Axis]: Flash Charm Inc. (fka Idera, Inc.) | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost [8],[16]             862              
Investments at fair value [8],[16]             760              
Principal amount [8],[12],[16]             863              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             457              
Investments at fair value [7],[8],[10]             460              
Principal amount [7],[8],[10],[12]             460              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (23)   (23)                    
Investments at fair value [3],[4],[9]   (12)   (12)                    
Principal amount [3],[4],[9],[11]   2,311   2,311                    
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,849              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (21)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             2,311              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   7,716 [3],[17],[18]   7,716 [3],[17],[18]     36,683 [7],[14],[15]              
Investments at fair value   7,688 [3],[17],[18]   7,688 [3],[17],[18]     36,810 [7],[14],[15]              
Principal amount   7,726 [3],[11],[17],[18]   7,726 [3],[11],[17],[18]     36,810 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Foreside Financial Group, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   271 [3],[4],[20]   271 [3],[4],[20]     4,012 [7],[8],[16]              
Investments at fair value   271 [3],[4],[20]   271 [3],[4],[20]     4,033 [7],[8],[16]              
Principal amount   272 [3],[4],[11],[20]   272 [3],[4],[11],[20]     4,033 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,994 [3],[4],[9],[20]   1,994 [3],[4],[9],[20]     826 [7],[8],[10],[16]              
Investments at fair value   2,014 [3],[4],[9],[20]   2,014 [3],[4],[9],[20]     834 [7],[8],[10],[16]              
Principal amount   2,014 [3],[4],[9],[11],[20]   2,014 [3],[4],[9],[11],[20]     834 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9]   (8) [3],[4],[9]     (20) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   846 [3],[4],[9],[11]   846 [3],[4],[9],[11]     2,026 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   28,900 [3],[17],[18]   28,900 [3],[17],[18]     29,095 [7],[14],[15]              
Investments at fair value   29,006 [3],[17],[18]   29,006 [3],[17],[18]     29,234 [7],[14],[15]              
Principal amount   29,006 [3],[11],[17],[18]   29,006 [3],[11],[17],[18]     29,234 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   968 [3],[4],[20]   968 [3],[4],[20]     974 [7],[8],[16]              
Investments at fair value   965 [3],[4],[20]   965 [3],[4],[20]     972 [7],[8],[16]              
Principal amount   965 [3],[4],[11],[20]   965 [3],[4],[11],[20]     972 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fortis Solutions Group, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   78 [3],[4]   78 [3],[4]     78 [7],[8]              
Investments at fair value   78 [3],[4]   78 [3],[4]     79 [7],[8]              
Principal amount   78 [3],[4],[11]   78 [3],[4],[11]     79 [7],[8],[12]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,947 [17],[18]   5,947 [17],[18]     5,871 [14],[15]              
Investments at fair value   5,885 [17],[18]   5,885 [17],[18]     5,871 [14],[15]              
Principal amount   6,301 [11],[17],[18]   6,301 [11],[17],[18]     6,350 [12],[14],[15]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost   22,447 [3],[24]   22,447 [3],[24]     22,436 [7],[25]              
Investments at fair value   22,500 [3],[24]   22,500 [3],[24]     22,500 [7],[25]              
Principal amount   22,500 [3],[11],[24]   22,500 [3],[11],[24]     22,500 [7],[12],[25]              
Investment, Identifier [Axis]: Foundational Education Group, Inc. | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost   10,791 [3],[4],[20]   10,791 [3],[4],[20]     10,754 [7],[8],[16]              
Investments at fair value   10,965 [3],[4],[20]   10,965 [3],[4],[20]     10,965 [7],[8],[16]              
Principal amount   10,965 [3],[4],[11],[20]   10,965 [3],[4],[11],[20]     10,965 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,197 [3],[17],[18]   6,197 [3],[17],[18]     6,193 [7],[14],[15]              
Investments at fair value   6,192 [3],[17],[18]   6,192 [3],[17],[18]     6,192 [7],[14],[15]              
Principal amount   6,223 [3],[11],[17],[18]   6,223 [3],[11],[17],[18]     6,223 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   375   375                    
Investments at fair value [3],[4],[9],[20]   375   375                    
Principal amount [3],[4],[9],[11],[20]   377   377                    
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9]   (3) [3],[4],[9]     (3) [7],[8],[10]              
Investments at fair value   (3) [3],[4],[9]   (3) [3],[4],[9]     (3) [7],[8],[10]              
Principal amount   691 [3],[4],[9],[11]   691 [3],[4],[9],[11]     691 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Fullsteam Operations LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   (8) [3],[4],[9]   (8) [3],[4],[9]     (10) [7],[8],[10]              
Principal amount   1,698 [3],[4],[9],[11]   1,698 [3],[4],[9],[11]     2,074 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Funded Investments - First lien | Convey Health Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Unearned income   77   241                    
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [24]   21,027   21,027                    
Investments at fair value [24]   21,072   21,072                    
Principal amount [11],[24]   21,072   21,072                    
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (30) [4],[9]   (30) [4],[9]     (30) [7],[8],[10]              
Investments at fair value   0 [4],[9]   0 [4],[9]     0 [7],[8],[10]              
Principal amount   3,951 [4],[9],[11]   3,951 [4],[9],[11]     3,951 [7],[8],[10],[12]              
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             35,742              
Investments at fair value [7],[14],[15]             35,918              
Principal amount [7],[12],[14],[15]             35,918              
Investment, Identifier [Axis]: GC Waves Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[25]             21,180              
Investments at fair value [7],[25]             21,233              
Principal amount [7],[12],[25]             21,233              
Investment, Identifier [Axis]: GEDC Equity, LLC | Participation Interest                            
Schedule of Investments [Line Items]                            
Cost   190 [3],[4]   190 [3],[4]     190 [7],[8]              
Investments at fair value   0 [3],[4]   0 [3],[4]     50 [7],[8]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   4,793   4,793                    
Investments at fair value [3],[4],[9]   4,213   4,213                    
Principal amount [3],[4],[9],[11]   4,818   4,818                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,779              
Investments at fair value [7],[8],[10]             1,786              
Principal amount [7],[8],[10],[12]             1,786              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             446              
Investments at fair value [7],[8],[10]             448              
Principal amount [7],[8],[10],[12]             448              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   (1)   (1)                    
Principal amount [3],[4],[9],[11]   3   3                    
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             759              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (19)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,036              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   20,888 [3],[24]   20,888 [3],[24]     25,049 [7],[14],[15]              
Investments at fair value   18,280 [3],[24]   18,280 [3],[24]     25,079 [7],[14],[15]              
Principal amount   20,906 [3],[11],[24]   20,906 [3],[11],[24]     25,079 [7],[12],[14],[15]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   442 [3],[4]   442 [3],[4]     21,048 [7],[25]              
Investments at fair value   389 [3],[4]   389 [3],[4]     21,074 [7],[25]              
Principal amount   445 [3],[4],[11]   445 [3],[4],[11]     21,074 [7],[12],[25]              
Investment, Identifier [Axis]: GS Acquisitionco, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             2,874              
Investments at fair value [7],[8],[16]             2,878              
Principal amount [7],[8],[12],[16]             2,878              
Investment, Identifier [Axis]: Greenway Health, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,140 [3],[4],[20]   6,140 [3],[4],[20]     6,175 [7],[8],[16]              
Investments at fair value   6,033 [3],[4],[20]   6,033 [3],[4],[20]     6,238 [7],[8],[16]              
Principal amount   6,190 [3],[4],[11],[20]   6,190 [3],[4],[11],[20]     6,238 [7],[8],[12],[16]              
Investment, Identifier [Axis]: HBWM Holdings, LLC | Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[39],[40]   4,827   4,827                    
Investments at fair value [3],[39],[40]   11,659   11,659                    
Investment, Identifier [Axis]: HBWM Holdings, LLC | Common units                            
Schedule of Investments [Line Items]                            
Cost [7],[41],[42]             4,776              
Investments at fair value [7],[41],[42]             10,854              
Principal amount   4,827   4,827     4,776              
Investment, Identifier [Axis]: HP TLE Buyer, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   8,132 [3],[17],[18]   8,132 [3],[17],[18]     8,129 [7],[14],[15]              
Investments at fair value   8,168 [3],[17],[18]   8,168 [3],[17],[18]     8,127 [7],[14],[15]              
Principal amount   8,168 [3],[11],[17],[18]   8,168 [3],[11],[17],[18]     8,168 [7],[12],[14],[15]              
Investment, Identifier [Axis]: HP TLE Buyer, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (9) [3],[4],[9]   (9) [3],[4],[9]     (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (9) [7],[8],[10]              
Principal amount   1,797 [3],[4],[9],[11]   1,797 [3],[4],[9],[11]     1,797 [7],[8],[10],[12]              
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. | Second lien 1                            
Schedule of Investments [Line Items]                            
Cost   25,381 [3],[24]   25,381 [3],[24]     23,683 [7],[25]              
Investments at fair value   15,637 [3],[24]   15,637 [3],[24]     19,640 [7],[25]              
Principal amount   25,426 [3],[11],[24]   25,426 [3],[11],[24]     23,738 [7],[12],[25]              
Investment, Identifier [Axis]: HS Purchaser, LLC / Help/Systems Holdings, Inc. | Second lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,740 [3],[18]   4,740 [3],[18]     4,421 [7],[14],[15]              
Investments at fair value   2,924 [3],[18]   2,924 [3],[18]     3,673 [7],[14],[15]              
Principal amount   4,755 [3],[11],[18]   4,755 [3],[11],[18]     4,440 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             4,980              
Investments at fair value [7],[8],[16]             5,018              
Principal amount [7],[8],[12],[16]             5,018              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (12) [4],[9]   (12) [4],[9]     (12) [7],[8],[10]              
Investments at fair value   0 [4],[9]   0 [4],[9]     0 [7],[8],[10]              
Principal amount   1,229 [4],[9],[11]   1,229 [4],[9],[11]     1,229 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [17],[18]   31,936   31,936                    
Investments at fair value [17],[18]   32,239   32,239                    
Principal amount [11],[17],[18]   32,239   32,239                    
Investment, Identifier [Axis]: Healthspan Buyer, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   4,947   4,947                    
Investments at fair value [4],[20]   4,980   4,980                    
Principal amount [4],[11],[20]   4,980   4,980                    
Investment, Identifier [Axis]: Houghton Mifflin Harcourt Company | First lien                            
Schedule of Investments [Line Items]                            
Cost   13,988 [17],[18]   13,988 [17],[18]     14,044 [14],[15]              
Investments at fair value   9,691 [17],[18]   9,691 [17],[18]     12,689 [14],[15]              
Principal amount   14,225 [11],[17],[18]   14,225 [11],[17],[18]     14,336 [12],[14],[15]              
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (2)   (2)                    
Investments at fair value [3],[4],[9]   (2)   (2)                    
Principal amount [3],[4],[9],[11]   220   220                    
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   3,554   3,554                    
Investments at fair value [3],[17],[18]   3,552   3,552                    
Principal amount [3],[11],[17],[18]   3,587   3,587                    
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   948   948                    
Investments at fair value [3],[4],[20]   948   948                    
Principal amount [3],[4],[11],[20]   958   958                    
Investment, Identifier [Axis]: ICAT Intermediate Holdings, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   511   511                    
Investments at fair value [3],[4],[20]   511   511                    
Principal amount [3],[4],[11],[20]   516   516                    
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (38) [3],[4],[9]   (38) [3],[4],[9]     (38) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   3,780 [3],[4],[9],[11]   3,780 [3],[4],[9],[11]     3,780 [7],[8],[10],[12]              
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   32,121 [3],[17],[18]   32,121 [3],[17],[18]     32,329 [7],[14],[15]              
Investments at fair value   32,225 [3],[17],[18]   32,225 [3],[17],[18]     32,471 [7],[14],[15]              
Principal amount   32,225 [3],[11],[17],[18]   32,225 [3],[11],[17],[18]     32,471 [7],[12],[14],[15]              
Investment, Identifier [Axis]: IG Investments Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,500 [3],[4],[20]   2,500 [3],[4],[20]     2,517 [7],[8],[16]              
Investments at fair value   2,498 [3],[4],[20]   2,498 [3],[4],[20]     2,517 [7],[8],[16]              
Principal amount   2,498 [3],[4],[11],[20]   2,498 [3],[4],[11],[20]     2,517 [7],[8],[12],[16]              
Investment, Identifier [Axis]: IMA Financial Group, Inc. | Class C Common Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   4,411   4,411                    
Investments at fair value [3],[4]   4,411   4,411                    
Investment, Identifier [Axis]: Icefall Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   4,672   4,672                    
Investments at fair value [3],[4],[20]   4,828   4,828                    
Principal amount [3],[4],[11],[20]   4,828   4,828                    
Investment, Identifier [Axis]: Icefall Parent, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (17)   (17)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   475   475                    
Investment, Identifier [Axis]: Infogain Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (28) [3],[4],[9]   (28) [3],[4],[9]     (29) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   3,757 [3],[4],[9],[11]   3,757 [3],[4],[9],[11]     3,827 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Infogain Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   7,598 [3],[17],[18]   7,598 [3],[17],[18]     18,263 [7],[14],[15]              
Investments at fair value   7,625 [3],[17],[18]   7,625 [3],[17],[18]     18,324 [7],[14],[15]              
Principal amount   7,625 [3],[11],[17],[18]   7,625 [3],[11],[17],[18]     18,324 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Infogain Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   70 [3],[4],[9]   70 [3],[4],[9]     7,647 [7],[14],[15]              
Investments at fair value   70 [3],[4],[9]   70 [3],[4],[9]     7,685 [7],[14],[15]              
Principal amount   70 [3],[4],[9],[11]   70 [3],[4],[9],[11]     7,685 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Infogain Corporation | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   6,226 [3],[4]   6,226 [3],[4]     16,534 [7],[8]              
Investments at fair value   6,265 [3],[4]   6,265 [3],[4]     16,661 [7],[8]              
Principal amount   6,265 [3],[4],[11]   6,265 [3],[4],[11]     16,661 [7],[8],[12]              
Investment, Identifier [Axis]: Ivy Hill Middle Market Credit Fund, Ltd | Structured Finance Obligation                            
Schedule of Investments [Line Items]                            
Cost   3,232 [3],[4],[23]   3,232 [3],[4],[23]     3,232 [7],[8],[22]              
Investments at fair value   3,217 [3],[4],[23]   3,217 [3],[4],[23]     3,277 [7],[8],[22]              
Principal amount   3,232 [3],[4],[11],[23]   3,232 [3],[4],[11],[23]     3,232 [7],[8],[12],[22]              
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   (8)   (8)                    
Principal amount [3],[4],[9],[11]   1,503   1,503                    
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (8)   (8)                    
Investments at fair value [3],[4],[9]   (8)   (8)                    
Principal amount [3],[4],[9],[11]   1,503   1,503                    
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   7,740   7,740                    
Investments at fair value [3],[17],[18]   7,738   7,738                    
Principal amount [3],[11],[17],[18]   7,777   7,777                    
Investment, Identifier [Axis]: Jawbreaker Parent, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,718   3,718                    
Investments at fair value [3],[4],[20]   3,700   3,700                    
Principal amount [3],[4],[11],[20]   3,718   3,718                    
Investment, Identifier [Axis]: Jawbreaker Topco, L.P. | Class A-1 Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[43]   2,476   2,476                    
Investments at fair value [3],[4],[43]   2,476   2,476                    
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   6,680 [3],[4],[20]   6,680 [3],[4],[20]     6,724 [7],[8],[16]              
Investments at fair value   6,140 [3],[4],[20]   6,140 [3],[4],[20]     6,331 [7],[8],[16]              
Principal amount   6,703 [3],[4],[11],[20]   6,703 [3],[4],[11],[20]     6,756 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,123 [3],[4],[20]   1,123 [3],[4],[20]     1,130 [7],[8],[16]              
Investments at fair value   1,033 [3],[4],[20]   1,033 [3],[4],[20]     1,066 [7],[8],[16]              
Principal amount   1,128 [3],[4],[11],[20]   1,128 [3],[4],[11],[20]     1,137 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   765 [3],[4],[20]   765 [3],[4],[20]     770 [7],[8],[16]              
Investments at fair value   703 [3],[4],[20]   703 [3],[4],[20]     726 [7],[8],[16]              
Principal amount   768 [3],[4],[11],[20]   768 [3],[4],[11],[20]     774 [7],[8],[12],[16]              
Investment, Identifier [Axis]: KPSKY Acquisition Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   18 [3],[4]   18 [3],[4]     18 [7],[8]              
Investments at fair value   17 [3],[4]   17 [3],[4]     18 [7],[8]              
Principal amount   18 [3],[4],[11]   18 [3],[4],[11]     19 [7],[8],[12]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   537 [3],[4],[9],[20]   537 [3],[4],[9],[20]     269 [7],[8],[10],[16]              
Investments at fair value   540 [3],[4],[9],[20]   540 [3],[4],[9],[20]     270 [7],[8],[10],[16]              
Principal amount   540 [3],[4],[9],[11],[20]   540 [3],[4],[9],[11],[20]     270 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9]   (6) [3],[4],[9]     (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,259 [3],[4],[9],[11]   1,259 [3],[4],[9],[11]     1,529 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   14,343 [3],[24]   14,343 [3],[24]     14,461 [7],[25]              
Investments at fair value   14,352 [3],[24]   14,352 [3],[24]     14,473 [7],[25]              
Principal amount   14,352 [3],[11],[24]   14,352 [3],[11],[24]     14,473 [7],[12],[25]              
Investment, Identifier [Axis]: Kele Holdco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,106 [3],[24]   1,106 [3],[24]     1,236 [7],[25]              
Investments at fair value   1,109 [3],[24]   1,109 [3],[24]     1,241 [7],[25]              
Principal amount   1,109 [3],[11],[24]   1,109 [3],[11],[24]     1,241 [7],[12],[25]              
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc. | Preferred Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[44]   14,203   14,203                    
Investments at fair value [3],[4],[44]   9,674   9,674                    
Investment, Identifier [Axis]: Knockout Intermediate Holdings I Inc. | Preferred shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[45]             13,248              
Investments at fair value [7],[8],[45]             13,324              
Principal amount   14,279   14,279     13,323              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[25]             6,198              
Investments at fair value [7],[25]             6,250              
Principal amount [7],[12],[25]             6,250              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   177   177                    
Investments at fair value [3],[4],[9]   174   174                    
Principal amount [3],[4],[9],[11]   179   179                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             293              
Investments at fair value [7],[10],[25]             296              
Principal amount [7],[10],[12],[25]             296              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             230              
Investments at fair value [7],[8],[10]             233              
Principal amount [7],[8],[10],[12]             233              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (5)   (5)                    
Investments at fair value [3],[4],[9]   (13)   (13)                    
Principal amount [3],[4],[9],[11]   537   537                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[25]             0              
Investments at fair value [7],[10],[25]             0              
Principal amount [7],[10],[12],[25]             61              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (5)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             483              
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   6,264   6,264                    
Investments at fair value [3],[24]   6,215   6,215                    
Principal amount [3],[11],[24]   6,310   6,310                    
Investment, Identifier [Axis]: Legends Hospitality Holding Company, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[24]   351   351                    
Investments at fair value [3],[24]   345   345                    
Principal amount [3],[11],[24]   354   354                    
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   4,189   4,189                    
Investments at fair value [3],[4]   3,454   3,454                    
Principal amount [3],[4],[11]   4,231   4,231                    
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   72   72                    
Investments at fair value [3],[4],[9],[20]   73   73                    
Principal amount [3],[4],[9],[11],[20]   73   73                    
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (5)   (5)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   346   346                    
Investment, Identifier [Axis]: LogRhythm, Inc. | First lien | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   245   245                    
Investment, Identifier [Axis]: Logrhythm, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8]             4,148              
Investments at fair value [7],[8]             3,994              
Principal amount [7],[8],[12]             4,196              
Investment, Identifier [Axis]: Logrhythm, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             (20)              
Principal amount [7],[8],[10],[12]             420              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   895   895                    
Investments at fair value [3],[4],[9]   898   898                    
Principal amount [3],[4],[9],[11]   898   898                    
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     (3) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (3) [7],[8],[10]              
Principal amount   2,738 [3],[4],[9],[11]   2,738 [3],[4],[9],[11]     819 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9]   (3) [3],[4],[9]     (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (9) [7],[8],[10]              
Principal amount   819 [3],[4],[9],[11]   819 [3],[4],[9],[11]     2,317 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost   (5) [3],[4],[9]   (5) [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (14) [7],[8],[10]              
Principal amount   1,419 [3],[4],[9],[11]   1,419 [3],[4],[9],[11]     3,698 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   18,311 [3],[17],[18]   18,311 [3],[17],[18]     16,979 [7],[14],[15]              
Investments at fair value   18,368 [3],[17],[18]   18,368 [3],[17],[18]     16,975 [7],[14],[15]              
Principal amount   18,368 [3],[11],[17],[18]   18,368 [3],[11],[17],[18]     17,038 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Low Voltage Holdings Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   953 [3],[4],[20]   953 [3],[4],[20]     1,417 [7],[8],[16]              
Investments at fair value   955 [3],[4],[20]   955 [3],[4],[20]     1,417 [7],[8],[16]              
Principal amount   955 [3],[4],[11],[20]   955 [3],[4],[11],[20]     1,422 [7],[8],[12],[16]              
Investment, Identifier [Axis]: MRI Software LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   498 [3],[4],[9]   498 [3],[4],[9]     398 [7],[8],[10]              
Investments at fair value   493 [3],[4],[9]   493 [3],[4],[9]     400 [7],[8],[10]              
Principal amount   501 [3],[4],[9],[11]   501 [3],[4],[9],[11]     400 [7],[8],[10],[12]              
Investment, Identifier [Axis]: MRI Software LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9]   (8) [3],[4],[9]     (8) [7],[8],[10]              
Investments at fair value   (23) [3],[4],[9]   (23) [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,502 [3],[4],[9],[11]   1,502 [3],[4],[9],[11]     1,602 [7],[8],[10],[12]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,021 [3],[24]   21,021 [3],[24]     21,183 [7],[25]              
Investments at fair value   20,721 [3],[24]   20,721 [3],[24]     21,205 [7],[25]              
Principal amount   21,036 [3],[11],[24]   21,036 [3],[11],[24]     21,205 [7],[12],[25]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   7,451 [3],[4],[20]   7,451 [3],[4],[20]     7,506 [7],[8],[16]              
Investments at fair value   7,341 [3],[4],[20]   7,341 [3],[4],[20]     7,512 [7],[8],[16]              
Principal amount   7,453 [3],[4],[11],[20]   7,453 [3],[4],[11],[20]     7,512 [7],[8],[12],[16]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   4,438 [3],[17],[18]   4,438 [3],[17],[18]     4,471 [7],[14],[15]              
Investments at fair value   4,372 [3],[17],[18]   4,372 [3],[17],[18]     4,474 [7],[14],[15]              
Principal amount   4,439 [3],[11],[17],[18]   4,439 [3],[11],[17],[18]     4,474 [7],[12],[14],[15]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost   3,049 [3],[17],[18]   3,049 [3],[17],[18]     3,072 [7],[14],[15]              
Investments at fair value   3,005 [3],[17],[18]   3,005 [3],[17],[18]     3,075 [7],[14],[15]              
Principal amount   3,050 [3],[11],[17],[18]   3,050 [3],[11],[17],[18]     3,075 [7],[12],[14],[15]              
Investment, Identifier [Axis]: MRI Software LLC | First lien 5                            
Schedule of Investments [Line Items]                            
Cost   778 [3],[4],[20]   778 [3],[4],[20]     784 [7],[8],[16]              
Investments at fair value   767 [3],[4],[20]   767 [3],[4],[20]     785 [7],[8],[16]              
Principal amount   779 [3],[4],[11],[20]   779 [3],[4],[11],[20]     785 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   1,861   1,861                    
Investments at fair value [3],[4],[9],[20]   1,878   1,878                    
Principal amount [3],[4],[9],[11],[20]   1,878   1,878                    
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             1,959              
Investments at fair value [7],[8],[10],[16]             1,979              
Principal amount [7],[8],[10],[12],[16]             1,979              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             57              
Investments at fair value [7],[8],[10]             57              
Principal amount [7],[8],[10],[12]             57              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,099 [3],[4],[9],[11]   1,099 [3],[4],[9],[11]     1,709 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Mai Capital Management Intermediate LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9]   (2) [3],[4],[9]     (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   308 [3],[4],[9],[11]   308 [3],[4],[9],[11]     251 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Matterhorn Finco, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[23]   (10)   (10)                    
Investments at fair value [3],[4],[9],[23]   (10)   (10)                    
Principal amount [3],[4],[9],[11],[23]   1,985   1,985                    
Investment, Identifier [Axis]: Matterhorn Finco, Inc., | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18],[23]   7,925   7,925                    
Investments at fair value [3],[17],[18],[23]   7,923   7,923                    
Principal amount [3],[11],[17],[18],[23]   7,963   7,963                    
Investment, Identifier [Axis]: Meta Buyer LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [14],[15]             2,972              
Investments at fair value [14],[15]             2,972              
Principal amount [12],[14],[15]             2,987              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   175   175                    
Investments at fair value [3],[4],[9]   175   175                    
Principal amount [3],[4],[9],[11]   176   176                    
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   159   159                    
Investments at fair value [3],[4],[9]   159   159                    
Principal amount [3],[4],[9],[11]   160   160                    
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   (1) [3],[4],[9]   (1) [3],[4],[9]     0 [8],[10]              
Investments at fair value   (2) [3],[4],[9]   (2) [3],[4],[9]     0 [8],[10]              
Principal amount   376 [3],[4],[9],[11]   376 [3],[4],[9],[11]     819 [8],[10],[12]              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [8],[10]              
Investments at fair value   (3) [3],[4],[9]   (3) [3],[4],[9]     0 [8],[10]              
Principal amount   642 [3],[4],[9],[11]   642 [3],[4],[9],[11]     409 [8],[10],[12]              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost [8],[10]             (2)              
Investments at fair value [8],[10]             (2)              
Principal amount [8],[10],[12]             536              
Investment, Identifier [Axis]: Meta Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   2,958   2,958                    
Investments at fair value [3],[17],[18]   2,957   2,957                    
Principal amount [3],[11],[17],[18]   2,972   2,972                    
Investment, Identifier [Axis]: Meta Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   405   405                    
Investments at fair value [3],[4]   406   406                    
Principal amount [3],[4],[11]   408   408                    
Investment, Identifier [Axis]: Model N, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             43,592              
Investments at fair value [7],[14],[15]             43,774              
Principal amount [7],[12],[14],[15]             43,774              
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (24)   (24)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   4,825   4,825                    
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             9,047              
Investment, Identifier [Axis]: Model N, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (24)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,825              
Investment, Identifier [Axis]: Model N, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   43,281   43,281                    
Investments at fair value [3],[17],[18]   43,442   43,442                    
Principal amount [3],[11],[17],[18]   43,442   43,442                    
Investment, Identifier [Axis]: Model N, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   4,479   4,479                    
Investments at fair value [3],[4],[20]   4,501   4,501                    
Principal amount [3],[4],[11],[20]   4,501   4,501                    
Investment, Identifier [Axis]: NC Topco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             5,838              
Investments at fair value [7],[14],[15]             5,862              
Principal amount [7],[12],[14],[15]             5,862              
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   5,797   5,797                    
Investments at fair value [3],[17],[18]   5,819   5,819                    
Principal amount [3],[11],[17],[18]   5,819   5,819                    
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,652   1,652                    
Investments at fair value [3],[4],[20]   1,660   1,660                    
Principal amount [3],[4],[11],[20]   1,660   1,660                    
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (3)   (3)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   669   669                    
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,672              
Investment, Identifier [Axis]: NC Topco, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (3)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             669              
Investment, Identifier [Axis]: NHME Holdings Corp. | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             4,000              
Investments at fair value [7],[8],[46],[47]             0              
Investment, Identifier [Axis]: NHME Holdings Corp. | Warrants                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             1,000              
Investments at fair value [7],[8],[46],[47]             0              
Investment, Identifier [Axis]: NM GP Holdco, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   406   406     390     322        
Investment, Identifier [Axis]: NM GP Holdco, LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[23],[48],[49]   862   862                    
Investments at fair value [3],[23],[48],[49]   406   406                    
Investment, Identifier [Axis]: NM GP Holdco, LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[22],[47],[50]             850              
Investments at fair value [7],[22],[47],[50]             390              
Investment, Identifier [Axis]: NM NL Holdings, L.P.                            
Schedule of Investments [Line Items]                            
Investments at fair value   111,959   111,959     106,096     104,512        
Investment, Identifier [Axis]: NM NL Holdings, L.P. | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[23],[48],[49]   73,202   73,202                    
Investments at fair value [3],[23],[48],[49]   111,959   111,959                    
Investment, Identifier [Axis]: NM NL Holdings, L.P. | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[22],[47],[50]             74,248              
Investments at fair value [7],[22],[47],[50]             106,096              
Investment, Identifier [Axis]: NM YI LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value             8,641     9,960        
Investment, Identifier [Axis]: NM YI, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   8,784   8,784     8,641              
Investment, Identifier [Axis]: NM YI, LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[48],[49]   6,272   6,272                    
Investments at fair value [3],[48],[49]   8,784   8,784                    
Investment, Identifier [Axis]: NM YI, LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[47],[50]             6,272              
Investments at fair value [7],[47],[50]             8,641              
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   155,200   155,200     160,000     160,000        
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[23],[49]   160,000   160,000                    
Investments at fair value [3],[4],[23],[49]   155,200   155,200                    
Investment, Identifier [Axis]: NMFC Senior Loan Program III LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[22],[47]             160,000              
Investments at fair value [7],[8],[22],[47]             160,000              
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   102,284   102,284     112,400     112,400        
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC | Membership Interest                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[23],[49]   112,400   112,400                    
Investments at fair value [3],[4],[23],[49]   102,284   102,284                    
Investment, Identifier [Axis]: NMFC Senior Loan Program IV LLC | Membership interest                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[22],[47]             112,400              
Investments at fair value [7],[8],[22],[47]             112,400              
Investment, Identifier [Axis]: National HME, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[46],[47]             7,872              
Investments at fair value [7],[8],[46],[47]             0              
Principal amount [7],[8],[12],[46],[47]             8,281              
Investment, Identifier [Axis]: National HME, Inc./NHME Holdings Corp.                            
Schedule of Investments [Line Items]                            
Investments at fair value   0   0     0     3,000        
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9],[20]   425   425                    
Investments at fair value [3],[4],[9],[20]   428   428                    
Principal amount [3],[4],[9],[11],[20]   428   428                    
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             2,152              
Investments at fair value [7],[8],[10],[16]             2,168              
Principal amount [7],[8],[10],[12],[16]             2,168              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16],[51]             389              
Investments at fair value [7],[8],[10],[16],[51]             392              
Principal amount [7],[8],[10],[12],[16],[51]             392              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Drawn 3                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             121              
Investments at fair value [7],[8],[10]             123              
Principal amount             123 € 105 [10]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,332 [3],[4],[9],[11]   1,332 [3],[4],[9],[11]     1,332 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[20],[52]   0 [3],[4],[9],[20],[52]     0 [7],[8],[10],[16],[51]              
Investments at fair value   0 [3],[4],[9],[20],[52]   0 [3],[4],[9],[20],[52]     0 [7],[8],[10],[16],[51]              
Principal amount   7,264   7,264 € 6,411 [9]   7,529 6,411 [10],[16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 3                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9],[20],[52]   (10) [3],[4],[9],[20],[52]     (8) [7],[8],[10],[16],[51]              
Investments at fair value   0 [3],[4],[9],[20],[52]   0 [3],[4],[9],[20],[52]     0 [7],[8],[10],[16],[51]              
Principal amount   1,355   1,355 1,196 [9]   1,282 1,092 [10],[16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien - Undrawn 4                            
Schedule of Investments [Line Items]                            
Cost   (16) [3],[4],[9]   (16) [3],[4],[9]     (17) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   2,185 [3],[4],[9],[11]   2,185 [3],[4],[9],[11]     2,221 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   17,495 [3],[4],[20],[52]   17,495 [3],[4],[20],[52]     17,614 [7],[8],[16],[51]              
Investments at fair value   18,398 [3],[4],[20],[52]   18,398 [3],[4],[20],[52]     19,214 [7],[8],[16],[51]              
Principal amount   18,398   18,398 € 16,234   19,212 € 16,357 [16],[51]            
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   8,818 [3],[17],[18]   8,818 [3],[17],[18]     8,878 [7],[14],[15]              
Investments at fair value   8,865 [3],[17],[18]   8,865 [3],[17],[18]     8,932 [7],[14],[15]              
Principal amount   8,865 [3],[11],[17],[18]   8,865 [3],[11],[17],[18]     8,932 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Nelipak Holding Company | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   2,138   2,138                    
Investments at fair value [3],[4],[20]   2,152   2,152                    
Principal amount [3],[4],[11],[20]   2,152   2,152                    
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   3,563   3,563                    
Investments at fair value [3],[17],[18]   3,563   3,563                    
Principal amount [3],[11],[17],[18]   3,563   3,563                    
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   1,836   1,836                    
Investments at fair value [3],[18]   1,836   1,836                    
Principal amount [3],[11],[18]   1,836   1,836                    
Investment, Identifier [Axis]: New ACI Buyer LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,682   1,682                    
Investments at fair value [3],[4]   1,682   1,682                    
Principal amount [3],[4],[11]   1,682   1,682                    
Investment, Identifier [Axis]: New ACI Buyer LLC | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   3,256   3,256                    
Investments at fair value [3],[18]   3,256   3,256                    
Principal amount [3],[11],[18]   3,256   3,256                    
Investment, Identifier [Axis]: New ACI Buyer LLC | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   1,537   1,537                    
Investments at fair value [3],[4]   1,537   1,537                    
Principal amount [3],[4],[11]   1,537   1,537                    
Investment, Identifier [Axis]: New ACI Holdings LLC | Class A Common Units 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18]   7,587   7,587                    
Investments at fair value [3],[18]   7,587   7,587                    
Investment, Identifier [Axis]: New ACI Holdings LLC | Class A Common Units 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   3,582   3,582                    
Investments at fair value [3],[4]   3,582   3,582                    
Investment, Identifier [Axis]: New ACI Holdings LLC | Class B Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   630   630                    
Investments at fair value [3],[4]   630   630                    
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   26,421   26,421                    
Investments at fair value [3],[18],[49]   26,421   26,421                    
Principal amount [3],[11],[18],[49]   26,421   26,421                    
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             51,933              
Investments at fair value [7],[15],[47]             51,933              
Principal amount [7],[12],[15],[47]             51,933              
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16],[47]             45,204              
Investments at fair value [7],[8],[16],[47]             45,204              
Principal amount [7],[8],[12],[16],[47]             45,204              
Investment, Identifier [Axis]: New Benevis Holdco, Inc. | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   29,300 [3],[4],[49]   29,300 [3],[4],[49]     26,483 [7],[8],[47]              
Investments at fair value   29,426 [3],[4],[49]   29,426 [3],[4],[49]     26,878 [7],[8],[47]              
Principal amount   29,426 [3],[4],[11],[49]   29,426 [3],[4],[11],[49]     26,878 [7],[8],[12],[47]              
Investment, Identifier [Axis]: New Benevis Topco, LLC / New Benevis Holdco, Inc.                            
Schedule of Investments [Line Items]                            
Investments at fair value   91,749   91,749     154,464     140,102        
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common Stock 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   27,154   27,154                    
Investments at fair value [3],[18],[49]   24,446   24,446                    
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common Stock 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   12,768   12,768                    
Investments at fair value [3],[4],[49]   11,456   11,456                    
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common stock 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             27,155              
Investments at fair value [7],[15],[47]             20,733              
Investment, Identifier [Axis]: New Benevis Topco, LLC | Common stock 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             12,768              
Investments at fair value [7],[8],[47]             9,716              
Investment, Identifier [Axis]: New Permian Holdco, Inc. / New Permian Holdco, L.L.C.                            
Schedule of Investments [Line Items]                            
Investments at fair value   67,394   67,394     63,833     63,076        
Investment, Identifier [Axis]: New Permian Holdco, Inc. | Ordinary Shares                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   11,155   11,155                    
Investments at fair value [3],[4],[49]   11,000   11,000                    
Investment, Identifier [Axis]: New Permian Holdco, Inc. | Ordinary shares                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             11,155              
Investments at fair value [7],[8],[47]             12,000              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien                            
Schedule of Investments [Line Items]                            
Cost   23,336 [3],[4],[20],[49]   23,336 [3],[4],[20],[49]     23,336 [7],[8],[16],[47]              
Investments at fair value   23,336 [3],[4],[20],[49]   23,336 [3],[4],[20],[49]     23,336 [7],[8],[16],[47]              
Principal amount   23,336 [3],[4],[11],[20],[49]   23,336 [3],[4],[11],[20],[49]     23,336 [7],[8],[12],[16],[47]              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   33,058 [3],[4],[9],[20],[49]   33,058 [3],[4],[9],[20],[49]     28,497 [7],[8],[10],[16],[47]              
Investments at fair value   33,058 [3],[4],[9],[20],[49]   33,058 [3],[4],[9],[20],[49]     28,497 [7],[8],[10],[16],[47]              
Principal amount   33,058 [3],[4],[9],[11],[20],[49]   33,058 [3],[4],[9],[11],[20],[49]     28,497 [7],[8],[10],[12],[16],[47]              
Investment, Identifier [Axis]: New Permian Holdco, L.L.C. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[49]   0 [3],[4],[9],[49]     0 [7],[8],[10],[47]              
Investments at fair value   0 [3],[4],[9],[49]   0 [3],[4],[9],[49]     0 [7],[8],[10],[47]              
Principal amount   836 [3],[4],[9],[11],[49]   836 [3],[4],[9],[11],[49]     3,397 [7],[8],[10],[12],[47]              
Investment, Identifier [Axis]: Next Holdco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,189 [3],[17],[18]   6,189 [3],[17],[18]     6,232 [7],[14],[15]              
Investments at fair value   6,217 [3],[17],[18]   6,217 [3],[17],[18]     6,264 [7],[14],[15]              
Principal amount   6,217 [3],[11],[17],[18]   6,217 [3],[11],[17],[18]     6,264 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Next Holdco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9]   (3) [3],[4],[9]     (3) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   339 [3],[4],[9],[11]   339 [3],[4],[9],[11]     339 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Notorious Buyer, LLC | Common Stock                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[53]   7,339   7,339                    
Investments at fair value [3],[4],[53]   4,859   4,859                    
Investment, Identifier [Axis]: Notorious Buyer, LLC | Common stock                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[54]             7,339              
Investments at fair value [7],[8],[54]             7,339              
Investment, Identifier [Axis]: Notorious Topco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,117 [3],[4]   5,117 [3],[4]     4,692 [7],[8]              
Investments at fair value   5,117 [3],[4]   5,117 [3],[4]     4,692 [7],[8]              
Principal amount   5,117 [3],[4],[11]   5,117 [3],[4],[11]     4,692 [7],[8],[12]              
Investment, Identifier [Axis]: Notorious Topco, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[53]   0 [3],[4],[9],[53]     0 [7],[8],[10],[54]              
Investments at fair value   0 [3],[4],[9],[53]   0 [3],[4],[9],[53]     0 [7],[8],[10],[54]              
Principal amount   938 [3],[4],[9],[11],[53]   938 [3],[4],[9],[11],[53]     938 [7],[8],[10],[12],[54]              
Investment, Identifier [Axis]: Notorious Topco, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   2,490 [3],[4]   2,490 [3],[4]     2,252 [7],[8]              
Investments at fair value   2,490 [3],[4]   2,490 [3],[4]     2,252 [7],[8]              
Principal amount   2,490 [3],[4],[11]   2,490 [3],[4],[11]     2,252 [7],[8],[12]              
Investment, Identifier [Axis]: OEConnection LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   6,585 [3],[17],[18]   6,585 [3],[17],[18]     6,582 [14],[15]              
Investments at fair value   6,560 [3],[17],[18]   6,560 [3],[17],[18]     6,620 [14],[15]              
Principal amount   6,609 [3],[11],[17],[18]   6,609 [3],[11],[17],[18]     6,609 [12],[14],[15]              
Investment, Identifier [Axis]: OEConnection LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     0 [8],[10]              
Investments at fair value   (4) [3],[4],[9]   (4) [3],[4],[9]     1 [8],[10]              
Principal amount   495 [3],[4],[9],[11]   495 [3],[4],[9],[11]     495 [8],[10],[12]              
Investment, Identifier [Axis]: OEConnection LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (3) [3],[4],[9]   (3) [3],[4],[9]     (3) [8],[10]              
Investments at fair value   (5) [3],[4],[9]   (5) [3],[4],[9]     0 [8],[10]              
Principal amount   618 [3],[4],[9],[11]   618 [3],[4],[9],[11]     618 [8],[10],[12]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             1,335              
Investments at fair value [7],[8],[10]             1,342              
Principal amount [7],[8],[10],[12]             1,342              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (2)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             488              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   22,205 [3],[13]   22,205 [3],[13]     22,081 [7],[19]              
Investments at fair value   21,057 [3],[13]   21,057 [3],[13]     22,171 [7],[19]              
Principal amount   22,283 [3],[11],[13]   22,283 [3],[11],[13]     22,171 [7],[12],[19]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   1,822 [3],[4]   1,822 [3],[4]     509 [7],[8],[16]              
Investments at fair value   1,730 [3],[4]   1,730 [3],[4]     509 [7],[8],[16]              
Principal amount   1,830 [3],[4],[11]   1,830 [3],[4],[11]     509 [7],[8],[12],[16]              
Investment, Identifier [Axis]: PDI TA Holdings, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   512   512                    
Investments at fair value [3],[4],[20]   484   484                    
Principal amount [3],[4],[11],[20]   512   512                    
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   196 [3],[4],[9],[20]   196 [3],[4],[9],[20]     64 [7],[8],[10],[16]              
Investments at fair value   191 [3],[4],[9],[20]   191 [3],[4],[9],[20]     61 [7],[8],[10],[16]              
Principal amount   195 [3],[4],[9],[11],[20]   195 [3],[4],[9],[11],[20]     61 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9]   (6) [3],[4],[9]     (9) [7],[8],[10]              
Investments at fair value   (6) [3],[4],[9]   (6) [3],[4],[9]     0 [7],[8],[10]              
Principal amount   292 [3],[4],[9],[11]   292 [3],[4],[9],[11]     426 [7],[8],[10],[12]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,958 [3],[13]   21,958 [3],[13]     22,118 [7],[19]              
Investments at fair value   21,554 [3],[13]   21,554 [3],[13]     22,163 [7],[19]              
Principal amount   21,994 [3],[11],[13]   21,994 [3],[11],[13]     22,163 [7],[12],[19]              
Investment, Identifier [Axis]: PPV Intermediate Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   8,113 [3],[17],[18]   8,113 [3],[17],[18]     8,175 [7],[14],[15]              
Investments at fair value   7,951 [3],[17],[18]   7,951 [3],[17],[18]     8,175 [7],[14],[15]              
Principal amount   8,113 [3],[11],[17],[18]   8,113 [3],[11],[17],[18]     8,175 [7],[12],[14],[15]              
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC | Claim                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   14,500   14,500                    
Investments at fair value [3],[4]   2,755   2,755                    
Principal amount [3],[4],[11]   14,500   14,500                    
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   14,500   14,500     14,500 [7],[8]              
Investments at fair value   2,755   2,755     6,525 [7],[8]              
Principal amount [7],[8],[12]             14,500              
Investment, Identifier [Axis]: PPVA Black Elk (Equity) LLC, Subordinated                            
Schedule of Investments [Line Items]                            
Principal amount                           $ 20,000
Investment, Identifier [Axis]: PPVA Fund, L.P. | Claim                            
Schedule of Investments [Line Items]                            
Cost [55]   0   0                    
Investments at fair value [55]   0   0                    
Principal amount [11],[55]   0   0                    
Investment, Identifier [Axis]: PPVA Fund, L.P. | Collateralized Financing                            
Schedule of Investments [Line Items]                            
Cost [56],[57]             0              
Investments at fair value [56],[57]             0              
Principal amount [12],[56],[57]             0              
Investment, Identifier [Axis]: Permian Trust | First lien                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[29]   0 [3],[4],[29]     0 [7],[8],[30]              
Investments at fair value   0 [3],[4],[29]   0 [3],[4],[29]     0 [7],[8],[30]              
Principal amount   3,409 [3],[4],[11],[29]   3,409 [3],[4],[11],[29]     3,409 [7],[8],[12],[30]              
Investment, Identifier [Axis]: Permian Trust | Trust Claim                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[29],[58]   0 [3],[29],[58]     0 [7],[30],[59]              
Investments at fair value   0 [3],[29],[58]   0 [3],[29],[58]     0 [7],[30],[59]              
Principal amount   247 [3],[11],[29],[58]   247 [3],[11],[29],[58]     247 [7],[12],[30],[59]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   27,462 [3],[17],[18]   27,462 [3],[17],[18]     27,646 [7],[14],[15]              
Investments at fair value   23,788 [3],[17],[18]   23,788 [3],[17],[18]     26,649 [7],[14],[15]              
Principal amount   27,648 [3],[11],[17],[18]   27,648 [3],[11],[17],[18]     27,861 [7],[12],[14],[15]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,468 [3],[4],[9],[20]   1,468 [3],[4],[9],[20]     367 [7],[8],[10],[16]              
Investments at fair value   1,276 [3],[4],[9],[20]   1,276 [3],[4],[9],[20]     355 [7],[8],[10],[16]              
Principal amount   1,483 [3],[4],[9],[11],[20]   1,483 [3],[4],[9],[11],[20]     371 [7],[8],[10],[12],[16]              
Investment, Identifier [Axis]: PetVet Care Centers, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (22) [3],[4],[9]   (22) [3],[4],[9]     (33) [7],[8],[10]              
Investments at fair value   (311) [3],[4],[9]   (311) [3],[4],[9]     (145) [7],[8],[10]              
Principal amount   2,225 [3],[4],[9],[11]   2,225 [3],[4],[9],[11]     3,337 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Pioneer Topco I, L.P. | Class A-2 Common Units                            
Schedule of Investments [Line Items]                            
Cost [3],[60]   2,000   2,000                    
Investments at fair value [3],[60]   1,600   1,600                    
Investment, Identifier [Axis]: Pioneer Topco I, L.P. | Class A-2 common units                            
Schedule of Investments [Line Items]                            
Cost [7],[61]             2,000              
Investments at fair value [7],[61]             2,200              
Investment, Identifier [Axis]: Planview Parent, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20]   3,201   3,201                    
Investments at fair value [4],[20]   3,137   3,137                    
Principal amount [4],[11],[20]   3,745   3,745                    
Investment, Identifier [Axis]: Planview Parent, Inc. | Second lien                            
Schedule of Investments [Line Items]                            
Cost   9,216 [3],[4],[20]   9,216 [3],[4],[20]     9,212 [7],[8],[16]              
Investments at fair value   6,415 [3],[4],[20]   6,415 [3],[4],[20]     8,827 [7],[8],[16]              
Principal amount   9,231 [3],[4],[11],[20]   9,231 [3],[4],[11],[20]     9,231 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             15,511              
Investments at fair value [7],[19]             15,597              
Principal amount [7],[12],[19]             15,597              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             425              
Investments at fair value [7],[8],[10]             429              
Principal amount [7],[8],[10],[12]             429              
Investment, Identifier [Axis]: Power Grid Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (39)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,861              
Investment, Identifier [Axis]: Project Accelerate Parent, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   10,298 [3],[24]   10,298 [3],[24]     10,372 [7],[25]              
Investments at fair value   10,334 [3],[24]   10,334 [3],[24]     10,413 [7],[25]              
Principal amount   10,334 [3],[11],[24]   10,334 [3],[11],[24]     10,413 [7],[12],[25]              
Investment, Identifier [Axis]: Project Accelerate Parent, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [3],[4],[9]   (8) [3],[4],[9]     (8) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   1,510 [3],[4],[9],[11]   1,510 [3],[4],[9],[11]     1,510 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   10,242 [3],[4],[20]   10,242 [3],[4],[20]     5,816 [14],[15]              
Investments at fair value   8,439 [3],[4],[20]   8,439 [3],[4],[20]     4,419 [14],[15]              
Principal amount   18,528 [3],[4],[11],[20]   18,528 [3],[4],[11],[20]     7,184 [12],[14],[15]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   6,124 [3],[17],[18]   6,124 [3],[17],[18]     4,109 [14],[15]              
Investments at fair value   3,247 [3],[17],[18]   3,247 [3],[17],[18]     2,613 [14],[15]              
Principal amount   7,128 [3],[11],[17],[18]   7,128 [3],[11],[17],[18]     4,163 [12],[14],[15]              
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[17],[18]   4,091   4,091                    
Investments at fair value [3],[17],[18]   1,882   1,882                    
Principal amount [3],[11],[17],[18]   4,131   4,131                    
Investment, Identifier [Axis]: RLG Holdings, LLC | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   625   625                    
Investments at fair value [3],[4],[20]   541   541                    
Principal amount [3],[4],[11],[20]   1,188   1,188                    
Investment, Identifier [Axis]: RLG Holdings, LLC | Second lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   1,542   1,542                    
Investments at fair value [3],[4],[20]   1,077   1,077                    
Principal amount [3],[4],[11],[20]   10,768   10,768                    
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,761 [3],[17],[18]   5,761 [3],[17],[18]     5,801 [7],[14],[15]              
Investments at fair value   5,784 [3],[17],[18]   5,784 [3],[17],[18]     5,799 [7],[14],[15]              
Principal amount   5,784 [3],[11],[17],[18]   5,784 [3],[11],[17],[18]     5,828 [7],[12],[14],[15]              
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   534   534                    
Investments at fair value [3],[4],[9]   537   537                    
Principal amount [3],[4],[9],[11]   537   537                    
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     (4) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (4) [7],[8],[10]              
Principal amount   1,258 [3],[4],[9],[11]   1,258 [3],[4],[9],[11]     899 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RailPros Parent, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (4) [3],[4],[9]   (4) [3],[4],[9]     0 [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     (9) [7],[8],[10]              
Principal amount   899 [3],[4],[9],[11]   899 [3],[4],[9],[11]     1,798 [7],[8],[10],[12]              
Investment, Identifier [Axis]: RealPage, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [17],[18]   1,857   1,857                    
Investments at fair value [17],[18]   1,934   1,934                    
Principal amount [11],[17],[18]   1,953   1,953                    
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Trust Claim 1                            
Schedule of Investments [Line Items]                            
Cost   152 [3],[18]   152 [3],[18]     152 [7],[15]              
Investments at fair value   152 [3],[18]   152 [3],[18]     152 [7],[15]              
Principal amount   152 [3],[11],[18]   152 [3],[11],[18]     152 [7],[12],[15]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Trust Claim 2                            
Schedule of Investments [Line Items]                            
Cost   52 [3],[4]   52 [3],[4]     52 [7],[8]              
Investments at fair value   52 [3],[4]   52 [3],[4]     52 [7],[8]              
Principal amount   52 [3],[4],[11]   52 [3],[4],[11]     52 [7],[8],[12]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Warrants 1                            
Schedule of Investments [Line Items]                            
Cost   182 [3],[18]   182 [3],[18]     182 [7],[15]              
Investments at fair value   272 [3],[18]   272 [3],[18]     272 [7],[15]              
Investment, Identifier [Axis]: Reorganized Careismatic Brands, LLC | Warrants 2                            
Schedule of Investments [Line Items]                            
Cost   62 [3],[4]   62 [3],[4]     62 [7],[8]              
Investments at fair value   93 [3],[4]   93 [3],[4]     93 [7],[8]              
Investment, Identifier [Axis]: Riskonnect Parent, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             6,349              
Investment, Identifier [Axis]: Sierra Enterprises, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             21,213              
Investments at fair value [7],[14],[15]             21,197              
Principal amount [7],[12],[14],[15]             21,357              
Investment, Identifier [Axis]: Sierra Enterprises, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (20)              
Investments at fair value [7],[8],[10]             (20)              
Principal amount [7],[8],[10],[12]             2,717              
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation                            
Schedule of Investments [Line Items]                            
Investments at fair value   1,889   1,889     2,000     2,000        
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[29]   11,501   11,501                    
Investments at fair value [3],[18],[29]   1,700   1,700                    
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[29]   1,282   1,282                    
Investments at fair value [3],[4],[29]   189   189                    
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[30]             11,501              
Investments at fair value [7],[15],[30]             1,799              
Investment, Identifier [Axis]: Sierra Hamilton Holdings Corporation | Ordinary shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[30]             1,282              
Investments at fair value [7],[8],[30]             201              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A Preferred Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[13]   19,636   19,636                    
Investments at fair value [3],[13]   15,467   15,467                    
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A Preferred Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   91   91                    
Investments at fair value [3],[4]   71   71                    
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares                            
Schedule of Investments [Line Items]                            
Principal amount   19,839   19,839     25,639              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[19]             18,953              
Investments at fair value [7],[19]             18,204              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             6,534              
Investments at fair value [7],[8],[16]             6,276              
Investment, Identifier [Axis]: Symplr Software Intermediate Holdings, Inc. | Series A preferred shares | Non-accrual status                            
Schedule of Investments [Line Items]                            
Unearned income   738   1,447                    
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9],[62]   0 [3],[4],[9],[62]     0 [7],[8],[10],[63]              
Investments at fair value   0 [3],[4],[9],[62]   0 [3],[4],[9],[62]     0 [7],[8],[10],[63]              
Principal amount   2,695 [3],[4],[9],[11],[62]   2,695 [3],[4],[9],[11],[62]     2,695 [7],[8],[10],[12],[63]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   24,795 [3],[4],[20]   24,795 [3],[4],[20]     22,392 [7],[8],[16]              
Investments at fair value   17,123 [3],[4],[20]   17,123 [3],[4],[20]     14,820 [7],[8],[16]              
Principal amount   27,354 [3],[4],[11],[20]   27,354 [3],[4],[11],[20]     22,939 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   6,233 [3],[4],[20]   6,233 [3],[4],[20]     2,878 [7],[8],[16]              
Investments at fair value   6,393 [3],[4],[20]   6,393 [3],[4],[20]     2,594 [7],[8],[16]              
Principal amount   10,213 [3],[4],[11],[20]   10,213 [3],[4],[11],[20]     4,057 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | Subordinated 1                            
Schedule of Investments [Line Items]                            
Cost   359 [3],[4]   359 [3],[4]     337 [7],[15]              
Investments at fair value   424 [3],[4]   424 [3],[4]     337 [7],[15]              
Principal amount   424 [3],[4],[11]   424 [3],[4],[11]     337 [7],[12],[15]              
Investment, Identifier [Axis]: TMK Hawk Parent, Corp. | Subordinated 2                            
Schedule of Investments [Line Items]                            
Cost   366 [3],[18]   366 [3],[18]     325 [7],[8]              
Investments at fair value   366 [3],[18]   366 [3],[18]     325 [7],[8]              
Principal amount   366 [3],[11],[18]   366 [3],[11],[18]     325 [7],[8],[12]              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC                            
Schedule of Investments [Line Items]                            
Investments at fair value   45,155   45,155     40,365     91,620        
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Class B-1 Common Shares                            
Schedule of Investments [Line Items]                            
Cost   43,212 [3],[4],[29]   43,212 [3],[4],[29]     43,212 [8],[30],[51]              
Investments at fair value   5,000 [3],[4],[29]   5,000 [3],[4],[29]     5,000 [8],[30],[51]              
Principal amount   48,080   48,080     48,080              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Class B-2 Common Shares                            
Schedule of Investments [Line Items]                            
Cost   24,839 [3],[4],[29]   24,839 [3],[4],[29]     24,839 [8],[30],[51]              
Investments at fair value   0 [3],[4],[29]   0 [3],[4],[29]     0 [8],[30],[51]              
Principal amount   29,707   29,707     29,707              
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Series C-2 Preferred Shares                            
Schedule of Investments [Line Items]                            
Principal amount   9,737   9,737                    
Investment, Identifier [Axis]: TVG-Edmentum Holdings, LLC | Series C-2 Preferred Units                            
Schedule of Investments [Line Items]                            
Cost   9,737 [3],[4],[29]   9,737 [3],[4],[29]     8,719 [7],[8],[30]              
Investments at fair value   9,737 [3],[4],[29]   9,737 [3],[4],[29]     8,719 [7],[8],[30]              
Investment, Identifier [Axis]: Tempo Acquisition, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [4],[20],[23]   20,457   20,457                    
Investments at fair value [4],[20],[23]   21,864   21,864                    
Principal amount [4],[11],[20],[23]   27,466   27,466                    
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   20,296 [3],[4],[20]   20,296 [3],[4],[20]     19,903 [7],[8],[16]              
Investments at fair value   20,218 [3],[4],[20]   20,218 [3],[4],[20]     19,815 [7],[8],[16]              
Principal amount   20,218 [3],[4],[11],[20]   20,218 [3],[4],[11],[20]     19,815 [7],[8],[12],[16]              
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   16,576 [3],[17],[18]   16,576 [3],[17],[18]     16,245 [7],[14],[15]              
Investments at fair value   16,576 [3],[17],[18]   16,576 [3],[17],[18]     16,245 [7],[14],[15]              
Principal amount   16,576 [3],[11],[17],[18]   16,576 [3],[11],[17],[18]     16,245 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Tennessee Bidco Limited | First lien 3                            
Schedule of Investments [Line Items]                            
Cost   899 [3],[17],[18]   899 [3],[17],[18]     890 [7],[14],[15]              
Investments at fair value   899 [3],[17],[18]   899 [3],[17],[18]     890 [7],[14],[15]              
Principal amount   899 [3],[11],[17],[18]   899 [3],[11],[17],[18]     890 [7],[12],[14],[15]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Drawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[10],[15]             3,741              
Investments at fair value [7],[10],[15]             3,741              
Principal amount [7],[10],[12],[15]             3,741              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Drawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             42              
Investments at fair value [7],[8],[10]             42              
Principal amount [7],[8],[10],[12]             42              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (43)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             4,267              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   29,755 [3],[4],[20]   29,755 [3],[4],[20]     29,728 [7],[8],[16]              
Investments at fair value   29,576 [3],[4],[20]   29,576 [3],[4],[20]     29,875 [7],[8],[16]              
Principal amount   29,875 [3],[4],[11],[20]   29,875 [3],[4],[11],[20]     29,875 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   3,741 [3],[18]   3,741 [3],[18]     3,033 [7],[8],[16]              
Investments at fair value   3,704 [3],[18]   3,704 [3],[18]     3,054 [7],[8],[16]              
Principal amount   3,741 [3],[11],[18]   3,741 [3],[11],[18]     3,054 [7],[8],[12],[16]              
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 3                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   3,037   3,037                    
Investments at fair value [3],[4],[20]   3,023   3,023                    
Principal amount [3],[4],[11],[20]   3,054   3,054                    
Investment, Identifier [Axis]: TigerConnect, Inc. | First lien 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4]   42   42                    
Investments at fair value [3],[4]   41   41                    
Principal amount [3],[4],[11]   42   42                    
Investment, Identifier [Axis]: TigerConnect, Inc.| First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (43)   (43)                    
Investments at fair value [3],[4],[9]   (43)   (43)                    
Principal amount [3],[4],[9],[11]   4,267   4,267                    
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (8) [4],[9]   (8) [4],[9]     (8) [7],[8],[10]              
Investments at fair value   0 [4],[9]   0 [4],[9]     0 [7],[8],[10]              
Principal amount   818 [4],[9],[11]   818 [4],[9],[11]     818 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   8,275 [17],[18]   8,275 [17],[18]     8,310 [7],[14],[15]              
Investments at fair value   8,303 [17],[18]   8,303 [17],[18]     8,345 [7],[14],[15]              
Principal amount   8,303 [11],[17],[18]   8,303 [11],[17],[18]     8,345 [7],[12],[14],[15]              
Investment, Identifier [Axis]: Trinity Air Consultants Holdings Corporation | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,773 [17],[18]   2,773 [17],[18]     2,784 [7],[14],[15]              
Investments at fair value   2,784 [17],[18]   2,784 [17],[18]     2,798 [7],[14],[15]              
Principal amount   2,784 [11],[17],[18]   2,784 [11],[17],[18]     2,798 [7],[12],[14],[15]              
Investment, Identifier [Axis]: USRP Holdings, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost   12,253 [3],[17],[18]   12,253 [3],[17],[18]     12,341 [7],[14],[15]              
Investments at fair value   12,299 [3],[17],[18]   12,299 [3],[17],[18]     12,396 [7],[14],[15]              
Principal amount   12,299 [3],[11],[17],[18]   12,299 [3],[11],[17],[18]     12,396 [7],[12],[14],[15]              
Investment, Identifier [Axis]: USRP Holdings, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (9) [3],[4],[9]   (9) [3],[4],[9]     (9) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   893 [3],[4],[9],[11]   893 [3],[4],[9],[11]     893 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             9,073              
Investments at fair value [7],[14],[15]             9,070              
Principal amount [7],[12],[14],[15]             9,116              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (6)              
Investments at fair value [7],[8],[10]             (6)              
Principal amount [7],[8],[10],[12]             1,139              
Investment, Identifier [Axis]: Ultimus Group Midco, LLC | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             (15)              
Principal amount [7],[8],[10],[12]             3,039              
Investment, Identifier [Axis]: UniTek Global Services, Inc.                            
Schedule of Investments [Line Items]                            
Investments at fair value   93,084   93,084     73,181     $ 107,524        
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   1,925   1,925                    
Investments at fair value [3],[18],[49]   0   0                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   532   532                    
Investments at fair value [3],[4],[49]   0   0                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             1,925              
Investments at fair value [7],[15],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Ordinary shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             532              
Investments at fair value [7],[8],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   71,326   71,326                    
Investments at fair value [3],[4],[49]   74,650   74,650                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   29,318   29,318                    
Investments at fair value [3],[4],[49]   18,434   18,434                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 3                            
Schedule of Investments [Line Items]                            
Cost [3],[18],[49]   26,946   26,946                    
Investments at fair value [3],[18],[49]   0   0                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 4                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   7,447   7,447                    
Investments at fair value [3],[4],[49]   0   0                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred Shares 5                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[49]   0   0                    
Investments at fair value [3],[4],[49]   0   0                    
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             61,162              
Investments at fair value [7],[8],[47]             64,486              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             29,318              
Investments at fair value [7],[8],[47]             8,695              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 3                            
Schedule of Investments [Line Items]                            
Cost [7],[15],[47]             26,946              
Investments at fair value [7],[15],[47]             0              
Investment, Identifier [Axis]: UniTek Global Services, Inc. | Preferred shares 4                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[47]             7,447              
Investments at fair value [7],[8],[47]             0              
Investment, Identifier [Axis]: Vehlo Purchaser, LLC | First lien                            
Schedule of Investments [Line Items]                            
Cost   5,991 [3],[4]   5,991 [3],[4]     6,022 [8]              
Investments at fair value   6,027 [3],[4]   6,027 [3],[4]     6,042 [8]              
Principal amount   6,027 [3],[4],[11]   6,027 [3],[4],[11]     6,073 [8],[12]              
Investment, Identifier [Axis]: Viper Bidco, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   0   0                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   1,838   1,838                    
Investment, Identifier [Axis]: Viper Bidco, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[9]   (17)   (17)                    
Investments at fair value [3],[4],[9]   0   0                    
Principal amount [3],[4],[9],[11]   3,320   3,320                    
Investment, Identifier [Axis]: Viper Bidco,Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Principal amount   15,686   15,686                    
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,838              
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (17)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             3,320              
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   14,931 [3],[4],[20],[52]   14,931 [3],[4],[20],[52]     15,037 [7],[8],[16],[51]              
Investments at fair value   15,686 [3],[4],[20],[52]   15,686 [3],[4],[20],[52]     16,051 [7],[8],[16],[51]              
Principal amount           £ 11,819 16,051   £ 11,910          
Investment, Identifier [Axis]: Viper Bidco. Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   2,278 [3],[4],[20]   2,278 [3],[4],[20]     2,294 [7],[8],[16]              
Investments at fair value   2,288 [3],[4],[20]   2,288 [3],[4],[20]     2,306 [7],[8],[16]              
Principal amount   2,288 [3],[4],[11],[20]   2,288 [3],[4],[11],[20]     2,306 [7],[8],[12],[16]              
Investment, Identifier [Axis]: WEG Sub Intermediate Holdings, LLC | Subordinated                            
Schedule of Investments [Line Items]                            
Cost   5,101 [3],[4]   5,101 [3],[4]     4,623 [7],[8]              
Investments at fair value   5,140 [3],[4]   5,140 [3],[4]     4,665 [7],[8]              
Principal amount   5,140 [3],[4],[11]   5,140 [3],[4],[11]     4,665 [7],[8],[12]              
Investment, Identifier [Axis]: Wealth Enhancement Group, LLC | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (6) [3],[4],[9]   (6) [3],[4],[9]     (6) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   2,040 [3],[4],[9],[11]   2,040 [3],[4],[9],[11]     2,040 [7],[8],[10],[12]              
Investment, Identifier [Axis]: Xactly Corporation | First lien                            
Schedule of Investments [Line Items]                            
Cost   22,493 [3],[13]   22,493 [3],[13]     22,489 [7],[19]              
Investments at fair value   21,263 [3],[13]   21,263 [3],[13]     22,232 [7],[19]              
Principal amount   22,500 [3],[11],[13]   22,500 [3],[11],[13]     22,500 [7],[12],[19]              
Investment, Identifier [Axis]: Xactly Corporation | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (10) [3],[4],[9]   (10) [3],[4],[9]     (10) [7],[8],[10]              
Investments at fair value   (55) [3],[4],[9]   (55) [3],[4],[9]     (12) [7],[8],[10]              
Principal amount   992 [3],[4],[9],[11]   992 [3],[4],[9],[11]     992 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   619 [3],[4],[9]   619 [3],[4],[9]     392 [7],[8],[10]              
Investments at fair value   623 [3],[4],[9]   623 [3],[4],[9]     394 [7],[8],[10]              
Principal amount   623 [3],[4],[9],[11]   623 [3],[4],[9],[11]     394 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost   0 [3],[4],[9]   0 [3],[4],[9]     (1) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   39 [3],[4],[9],[11]   39 [3],[4],[9],[11]     271 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost   (2) [3],[4],[9]   (2) [3],[4],[9]     (2) [7],[8],[10]              
Investments at fair value   0 [3],[4],[9]   0 [3],[4],[9]     0 [7],[8],[10]              
Principal amount   309 [3],[4],[9],[11]   309 [3],[4],[9],[11]     309 [7],[8],[10],[12]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost   21,477 [3],[24]   21,477 [3],[24]     21,638 [7],[25]              
Investments at fair value   21,498 [3],[24]   21,498 [3],[24]     21,661 [7],[25]              
Principal amount   21,498 [3],[11],[24]   21,498 [3],[11],[24]     21,661 [7],[12],[25]              
Investment, Identifier [Axis]: YLG Holdings, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost   4,259 [3],[17],[18]   4,259 [3],[17],[18]     4,289 [7],[14],[15]              
Investments at fair value   4,276 [3],[17],[18]   4,276 [3],[17],[18]     4,309 [7],[14],[15]              
Principal amount   4,276 [3],[11],[17],[18]   4,276 [3],[11],[17],[18]     4,309 [7],[12],[14],[15]              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10],[16]             290              
Investments at fair value [7],[8],[10],[16]             301              
Principal amount [7],[8],[10],[12],[16]             301              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Undrawn 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             0              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,847              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien - Undrawn 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[10]             (11)              
Investments at fair value [7],[8],[10]             0              
Principal amount [7],[8],[10],[12]             1,074              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[14],[15]             11,275              
Investments at fair value [7],[14],[15]             11,380              
Principal amount [7],[12],[14],[15]             11,380              
Investment, Identifier [Axis]: eResearchTechnology, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             1,877              
Investments at fair value [7],[8],[16]             1,889              
Principal amount [7],[8],[12],[16]             1,889              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien                            
Schedule of Investments [Line Items]                            
Cost [3],[4],[20]   7,341   7,341                    
Investments at fair value [3],[4],[20]   6,782   6,782                    
Principal amount [3],[4],[11],[20]   7,366   7,366                    
Investment, Identifier [Axis]: iCIMS, Inc. | First lien - Drawn                            
Schedule of Investments [Line Items]                            
Cost   1,580 [3],[4],[9]   1,580 [3],[4],[9]     1,160 [7],[8],[10]              
Investments at fair value   1,444 [3],[4],[9]   1,444 [3],[4],[9]     1,134 [7],[8],[10]              
Principal amount   1,588 [3],[4],[9],[11]   1,588 [3],[4],[9],[11]     1,165 [7],[8],[10],[12]              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien - Undrawn                            
Schedule of Investments [Line Items]                            
Cost   (17) [3],[4],[9]   (17) [3],[4],[9]     (21) [7],[8],[10]              
Investments at fair value   (175) [3],[4],[9]   (175) [3],[4],[9]     (64) [7],[8],[10]              
Principal amount   1,941 [3],[4],[9],[11]   1,941 [3],[4],[9],[11]     2,365 [7],[8],[10],[12]              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien 1                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             44,590              
Investments at fair value [7],[8],[16]             43,538              
Principal amount [7],[8],[12],[16]             44,742              
Investment, Identifier [Axis]: iCIMS, Inc. | First lien 2                            
Schedule of Investments [Line Items]                            
Cost [7],[8],[16]             7,332              
Investments at fair value [7],[8],[16]             7,253              
Principal amount [7],[8],[12],[16]             7,366              
SLP IV                            
Schedule of Investments [Line Items]                            
Cost   112,400   112,400                    
SLP IV | Revolving Credit Facility | Line of Credit                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity $ 600,000   $ 370,000                      
SLP IV | Revolving Credit Facility | Line Of Credit, Class A Advance                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity 530,000                          
SLP IV | Revolving Credit Facility | Line Of Credit, Class B Advance                            
Schedule of Investments [Line Items]                            
Maximum borrowing capacity $ 70,000                          
SLP IV | SkyKnight Alpha                            
Schedule of Investments [Line Items]                            
Cost   30,600   $ 30,600                    
SLP IV                            
Schedule of Investments [Line Items]                            
Investment period       5 years                    
Investment additional period       1 year                    
Cost   627,324   $ 627,324     654,867              
Investments at fair value   592,086   592,086     641,452              
Principal amount   633,916   633,916     664,399              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | ADG, LLC                            
Schedule of Investments [Line Items]                            
Cost   18,326   18,326     18,215              
Investments at fair value   11,846   11,846     14,574              
Principal amount   18,327   18,327     18,217              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | ADMI Corp. (aka Aspen Dental)                            
Schedule of Investments [Line Items]                            
Cost   1,779   1,779     1,792              
Investments at fair value   1,688   1,688     1,708              
Principal amount   1,781   1,781     1,795              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Accelya Lux Finco S.a r.l.                            
Schedule of Investments [Line Items]                            
Cost   10,232   10,232     10,292              
Investments at fair value   9,430   9,430     10,466              
Principal amount   10,420   10,420     10,498              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Allium Buyer LLC                            
Schedule of Investments [Line Items]                            
Cost   5,938   5,938                    
Investments at fair value   6,051   6,051                    
Principal amount   6,028   6,028                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | AmSpec Parent, LLC                            
Schedule of Investments [Line Items]                            
Cost   5,473   5,473     5,514              
Investments at fair value   5,498   5,498     5,547              
Principal amount   5,478   5,478     5,519              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC                            
Schedule of Investments [Line Items]                            
Cost   3,118   3,118                    
Investments at fair value   2,911   2,911                    
Principal amount   3,134   3,134                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 1                            
Schedule of Investments [Line Items]                            
Cost             9,542              
Investments at fair value             9,622              
Principal amount             9,593              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 2                            
Schedule of Investments [Line Items]                            
Cost             1,759              
Investments at fair value             1,811              
Principal amount             1,809              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Asurion, LLC 3                            
Schedule of Investments [Line Items]                            
Cost             979              
Investments at fair value             994              
Principal amount             992              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             8,473              
Investments at fair value             8,434              
Principal amount             8,509              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   7,809   7,809                    
Investments at fair value   7,593   7,593                    
Principal amount   7,838   7,838                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BCPE Empire Holdings, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   3,583   3,583                    
Investments at fair value   3,505   3,505                    
Principal amount   3,633   3,633                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BIFM CA Buyer Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,547   6,547     6,585              
Investments at fair value   6,567   6,567     6,664              
Principal amount   6,561   6,561     6,611              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BW Holding, Inc.                            
Schedule of Investments [Line Items]                            
Cost             441              
Investments at fair value             454              
Principal amount             445              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Bach Finance Limited                            
Schedule of Investments [Line Items]                            
Cost             1,592              
Investments at fair value             1,602              
Principal amount             1,595              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Bella Holding Company, LLC                            
Schedule of Investments [Line Items]                            
Cost   1,714   1,714     1,736              
Investments at fair value   1,733   1,733     1,746              
Principal amount   1,729   1,729     1,737              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Berlin Packaging L.L.C.                            
Schedule of Investments [Line Items]                            
Cost   4,892   4,892     4,930              
Investments at fair value   4,860   4,860     4,944              
Principal amount   4,890   4,890     4,927              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Boxer Parent Company Inc.                            
Schedule of Investments [Line Items]                            
Cost             5,205              
Investments at fair value             5,208              
Principal amount             5,216              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | BradyPLUS Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost             3,596              
Investments at fair value             3,618              
Principal amount             3,650              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | CVET Midco 2, L.P.                            
Schedule of Investments [Line Items]                            
Cost   6,374   6,374     6,402              
Investments at fair value   6,300   6,300     5,879              
Principal amount   6,472   6,472     6,522              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Capstone Borrower, Inc.                            
Schedule of Investments [Line Items]                            
Cost             1,979              
Investments at fair value             1,991              
Principal amount             1,989              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cardinal Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,930   6,930     6,947              
Investments at fair value   6,287   6,287     6,898              
Principal amount   6,990   6,990     7,046              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Chrysaor Bidco S.a r.l.                            
Schedule of Investments [Line Items]                            
Cost   1,549   1,549     1,561              
Investments at fair value   1,556   1,556     1,574              
Principal amount   1,549   1,549     1,561              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Citrin Cooperman Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   2,665   2,665     4,173              
Investments at fair value   2,648   2,648     4,196              
Principal amount   2,677   2,677     4,179              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cleanova US Holdings LLC                            
Schedule of Investments [Line Items]                            
Cost   10,988   10,988     11,846              
Investments at fair value   11,103   11,103     11,973              
Principal amount   11,096   11,096     11,973              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cloudera, Inc.                            
Schedule of Investments [Line Items]                            
Cost   9,475   9,475     9,524              
Investments at fair value   8,924   8,924     9,247              
Principal amount   9,550   9,550     9,625              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Clydesdale Acquisition Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,505   5,505     5,523              
Investments at fair value   5,410   5,410     5,525              
Principal amount   5,504   5,504     5,521              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cohnreznick Advisory LLC                            
Schedule of Investments [Line Items]                            
Cost   4,397   4,397     5,463              
Investments at fair value   4,380   4,380     5,513              
Principal amount   4,410   4,410     5,475              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Confluence Technologies, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   9,510   9,510     9,579              
Investments at fair value   7,772   7,772     8,058              
Principal amount   9,525   9,525     9,600              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Confluence Technologies, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   943   943     942              
Investments at fair value   941   941     943              
Principal amount   943   943     943              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Confluent Health, LLC                            
Schedule of Investments [Line Items]                            
Cost   3,051   3,051     3,074              
Investments at fair value   2,856   2,856     2,758              
Principal amount   3,057   3,057     3,082              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Confluent Medical Technologies, Inc.                            
Schedule of Investments [Line Items]                            
Cost             6,723              
Investments at fair value             6,799              
Principal amount             6,740              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | ConnectWise, LLC                            
Schedule of Investments [Line Items]                            
Cost   6,561   6,561     6,614              
Investments at fair value   6,450   6,450     6,503              
Principal amount   6,555   6,555     6,606              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Convey Health Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,349   3,349     3,466              
Investments at fair value   376   376     2,562              
Principal amount   3,484   3,484     3,509              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | CoreLogic, Inc. (fka First American Corporation, The)                            
Schedule of Investments [Line Items]                            
Cost   6,374   6,374                    
Investments at fair value   6,167   6,167                    
Principal amount   6,500   6,500                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cornerstone OnDemand, Inc.                            
Schedule of Investments [Line Items]                            
Cost   1,792   1,792     1,805              
Investments at fair value   1,139   1,139     1,668              
Principal amount   1,795   1,795     1,809              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Cub Financing Intermediate, LLC                            
Schedule of Investments [Line Items]                            
Cost   583   583                    
Investments at fair value   593   593                    
Principal amount   589   589                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | DG Investment Intermediate Holdings 2, Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,208   8,208     7,264              
Investments at fair value   8,247   8,247     7,310              
Principal amount   8,226   8,226     7,283              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Dayforce Bidco, LLC                            
Schedule of Investments [Line Items]                            
Cost   2,919   2,919                    
Investments at fair value   2,889   2,889                    
Principal amount   2,996   2,996                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Dealer Tire Financial, LLC                            
Schedule of Investments [Line Items]                            
Cost   10,259   10,259     10,333              
Investments at fair value   10,215   10,215     10,402              
Principal amount   10,297   10,297     10,376              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Disco Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost             4,614              
Investments at fair value             4,660              
Principal amount             4,625              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Discovery Purchaser Corporation                            
Schedule of Investments [Line Items]                            
Cost   6,653   6,653     8,958              
Investments at fair value   6,800   6,800     8,889              
Principal amount   6,816   6,816     9,227              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | EAB Global, Inc.                            
Schedule of Investments [Line Items]                            
Cost   6,760   6,760     6,801              
Investments at fair value   6,081   6,081     6,131              
Principal amount   6,824   6,824     6,876              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Eagle Parent Corp.                            
Schedule of Investments [Line Items]                            
Cost   8,703   8,703     8,753              
Investments at fair value   8,834   8,834     8,878              
Principal amount   8,775   8,775     8,844              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Eisner Advisory Group LLC                            
Schedule of Investments [Line Items]                            
Cost   6,761   6,761     4,937              
Investments at fair value   6,823   6,823     5,017              
Principal amount   6,826   6,826     4,976              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Embecta Corp.                            
Schedule of Investments [Line Items]                            
Cost   1,582   1,582     1,688              
Investments at fair value   1,340   1,340     1,689              
Principal amount   1,579   1,579     1,684              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | FNZ Group Entities Limited                            
Schedule of Investments [Line Items]                            
Cost   7,048   7,048     7,088              
Investments at fair value   4,630   4,630     5,742              
Principal amount   7,161   7,161     7,216              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Finastra USA, Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,147   8,147     8,181              
Investments at fair value   7,943   7,943     8,097              
Principal amount   8,214   8,214     8,255              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | First Advantage Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost             1,759              
Investments at fair value             1,762              
Principal amount             1,777              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Flash Charm, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,890   3,890     9,924              
Investments at fair value   3,443   3,443     9,315              
Principal amount   3,898   3,898     9,955              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Forgent Intermediate IV LLC                            
Schedule of Investments [Line Items]                            
Cost             8,037              
Investments at fair value             8,077              
Principal amount             8,118              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Foundational Education Group, Inc.                            
Schedule of Investments [Line Items]                            
Cost   10,787   10,787     10,852              
Investments at fair value   10,129   10,129     10,105              
Principal amount   10,844   10,844     10,930              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Groundworks, LLC                            
Schedule of Investments [Line Items]                            
Cost   6,375   6,375     6,297              
Investments at fair value   6,412   6,412     6,492              
Principal amount   6,404   6,404     6,452              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Finance 2 Limited                            
Schedule of Investments [Line Items]                            
Cost   2,889   2,889                    
Investments at fair value   2,873   2,873                    
Principal amount   2,977   2,977                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             7,123              
Investments at fair value             7,123              
Principal amount             7,123              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   7,069   7,069                    
Investments at fair value   7,069   7,069                    
Principal amount   7,069   7,069                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | HIG Operations Holdings, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   1,224   1,224                    
Investments at fair value   1,229   1,229                    
Principal amount   1,230   1,230                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | HP PHRG Borrower, LLC                            
Schedule of Investments [Line Items]                            
Cost   10,454   10,454     10,527              
Investments at fair value   10,474   10,474     10,553              
Principal amount   10,517   10,517     10,597              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Heartland Dental, LLC                            
Schedule of Investments [Line Items]                            
Cost   2,648   2,648     9,886              
Investments at fair value   2,650   2,650     9,963              
Principal amount   2,652   2,652     9,910              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Help/Systems Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,995   5,995     6,039              
Investments at fair value   4,549   4,549     5,494              
Principal amount   6,002   6,002     6,047              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Houghton Mifflin Harcourt Company                            
Schedule of Investments [Line Items]                            
Cost   7,953   7,953     7,975              
Investments at fair value   5,524   5,524     7,233              
Principal amount   8,109   8,109     8,172              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Inizio Group Limited                            
Schedule of Investments [Line Items]                            
Cost   9,624   9,624     9,595              
Investments at fair value   9,496   9,496     9,472              
Principal amount   9,702   9,702     9,702              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Jones DesLauriers Insurance Management Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,039   3,039     1,707              
Investments at fair value   3,063   3,063     1,715              
Principal amount   3,099   3,099     1,711              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Kaseya Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,076   8,076     8,135              
Investments at fair value   6,773   6,773     8,169              
Principal amount   8,090   8,090     8,152              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Kestra Advisor Services Holdings A, Inc.                            
Schedule of Investments [Line Items]                            
Cost             2,277              
Investments at fair value             2,287              
Principal amount             2,280              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | KnowBe4, Inc.                            
Schedule of Investments [Line Items]                            
Cost   4,751   4,751     8,762              
Investments at fair value   3,369   3,369     8,778              
Principal amount   4,751   4,751     8,761              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | LSCS Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   10,072   10,072     10,144              
Investments at fair value   10,063   10,063     10,010              
Principal amount   10,119   10,119     10,197              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | LTR Intermediate Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   4,993   4,993     5,016              
Investments at fair value   5,035   5,035     5,061              
Principal amount   5,016   5,016     5,041              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | MED ParentCo, LP                            
Schedule of Investments [Line Items]                            
Cost   6,017   6,017     7,259              
Investments at fair value   6,036   6,036     7,321              
Principal amount   6,039   6,039     7,291              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Marcel Bidco LLC (Marcel Bidco GmbH)                            
Schedule of Investments [Line Items]                            
Cost   2,975   2,975     1,996              
Investments at fair value   2,928   2,928     2,032              
Principal amount   2,999   2,999     2,019              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Mavis Tire Express Services Topco, Corp.                            
Schedule of Investments [Line Items]                            
Cost   8,831   8,831     8,473              
Investments at fair value   8,802   8,802     8,533              
Principal amount   8,875   8,875     8,493              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC                            
Schedule of Investments [Line Items]                            
Cost             3,829              
Investments at fair value             3,843              
Principal amount             3,829              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   3,800   3,800                    
Investments at fair value   3,806   3,806                    
Principal amount   3,800   3,800                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Michael Baker International, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   1,230   1,230                    
Investments at fair value   1,261   1,261                    
Principal amount   1,259   1,259                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Neon Maple Purchaser Inc.                            
Schedule of Investments [Line Items]                            
Cost   2,213   2,213     1,483              
Investments at fair value   2,153   2,153     1,481              
Principal amount   2,210   2,210     1,477              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Nexus Buyer LLC                            
Schedule of Investments [Line Items]                            
Cost   8,802   8,802     8,864              
Investments at fair value   8,761   8,761     8,855              
Principal amount   8,842   8,842     8,909              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Nielsen Consumer, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,501   3,501     3,504              
Investments at fair value   3,643   3,643     3,692              
Principal amount   3,654   3,654     3,682              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | OCM System One Buyer CTB, LLC (Sentinel Purchaser II Holdco, LLC)                            
Schedule of Investments [Line Items]                            
Cost   4,799   4,799                    
Investments at fair value   4,817   4,817                    
Principal amount   4,823   4,823                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | OSTTRA Group Ltd                            
Schedule of Investments [Line Items]                            
Cost   5,617   5,617                    
Investments at fair value   5,629   5,629                    
Principal amount   5,622   5,622                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | OVG Business Services, LLC                            
Schedule of Investments [Line Items]                            
Cost   1,742   1,742     1,755              
Investments at fair value   1,759   1,759     1,769              
Principal amount   1,750   1,750     1,763              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Oceankey (U.S.) II Corp.                            
Schedule of Investments [Line Items]                            
Cost   9,170   9,170     9,243              
Investments at fair value   9,070   9,070     9,126              
Principal amount   9,167   9,167     9,239              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Orbit Private Holdings I Ltd                            
Schedule of Investments [Line Items]                            
Cost   5,921   5,921     5,763              
Investments at fair value   5,951   5,951     5,816              
Principal amount   5,941   5,941     5,785              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Orion Advisor Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost             956              
Investments at fair value             962              
Principal amount             955              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Orion Midco Ltd                            
Schedule of Investments [Line Items]                            
Cost             5,231              
Investments at fair value             5,267              
Principal amount             5,237              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Osaic Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,532   3,532     8,861              
Investments at fair value   3,504   3,504     8,930              
Principal amount   3,532   3,532     8,883              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Osmose Utilities Services, Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,570   8,570     8,543              
Investments at fair value   8,795   8,795     8,742              
Principal amount   8,805   8,805     8,875              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Outcomes Group Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   2,799   2,799     2,819              
Investments at fair value   2,824   2,824     2,850              
Principal amount   2,808   2,808     2,829              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Paradigm Parent, LLC                            
Schedule of Investments [Line Items]                            
Cost   354   354                    
Investments at fair value   372   372                    
Principal amount   398   398                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Pearls (Netherlands) Bidco B.V.                            
Schedule of Investments [Line Items]                            
Cost   737   737     5,436              
Investments at fair value   723   723     5,150              
Principal amount   762   762     5,679              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Perforce Software, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,163   3,163     3,186              
Investments at fair value   1,629   1,629     2,715              
Principal amount   3,173   3,173     3,198              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Physician Partners, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   2,673   2,673     1,740              
Investments at fair value   2,804   2,804     1,492              
Principal amount   2,763   2,763     1,784              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Physician Partners, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   2,137   2,137     2,109              
Investments at fair value   2,075   2,075     1,022              
Principal amount   2,147   2,147     2,120              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Pioneer AcquisitionCo, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,004   4,004     5,033              
Investments at fair value   3,993   3,993     5,074              
Principal amount   4,013   4,013     5,046              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Planview Parent, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,840   7,840     7,876              
Investments at fair value   6,599   6,599     7,641              
Principal amount   7,879   7,879     7,940              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Pretium PKG Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,550   3,550                    
Investments at fair value   3,538   3,538                    
Principal amount   3,566   3,566                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Project Alpha Intermediate Holding, Inc.                            
Schedule of Investments [Line Items]                            
Cost   9,508   9,508     9,561              
Investments at fair value   6,809   6,809     9,704              
Principal amount   9,634   9,634     9,708              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Pushpay USA Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,790   8,790     8,858              
Investments at fair value   7,966   7,966     8,858              
Principal amount   8,786   8,786     8,853              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Quartz AcquireCo, LLC                            
Schedule of Investments [Line Items]                            
Cost   1,098   1,098     1,472              
Investments at fair value   960   960     1,477              
Principal amount   1,102   1,102     1,477              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | RealPage, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   3,502   3,502     1,938              
Investments at fair value   3,466   3,466     1,941              
Principal amount   3,508   3,508     1,940              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | RealPage, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   4,006   4,006     1,978              
Investments at fair value   4,024   4,024     1,994              
Principal amount   4,063   4,063     1,985              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Rithum Holdings, Inc. (fka CommerceHub, Inc.)                            
Schedule of Investments [Line Items]                            
Cost   9,921   9,921     9,990              
Investments at fair value   9,421   9,421     10,076              
Principal amount   9,985   9,985     10,061              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | RxB Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,185   3,185     3,218              
Investments at fair value   3,246   3,246     3,246              
Principal amount   3,242   3,242     3,283              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | STATS Intermediate Holdings, LLC                            
Schedule of Investments [Line Items]                            
Cost   6,740   6,740                    
Investments at fair value   6,904   6,904                    
Principal amount   6,965   6,965                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | STATS Intermediate Holdings, LLC 1                            
Schedule of Investments [Line Items]                            
Cost             4,902              
Investments at fair value             4,868              
Principal amount             4,940              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | STATS Intermediate Holdings, LLC 2                            
Schedule of Investments [Line Items]                            
Cost             2,210              
Investments at fair value             2,225              
Principal amount             2,225              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Secretariat Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   6,227   6,227     6,083              
Investments at fair value   6,060   6,060     6,134              
Principal amount   6,249   6,249     6,110              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Secure Acquisition, Inc.                            
Schedule of Investments [Line Items]                            
Cost   2,578   2,578     331              
Investments at fair value   2,588   2,588     333              
Principal amount   2,580   2,580     330              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | SonarSource Financing, LLC                            
Schedule of Investments [Line Items]                            
Cost   6,744   6,744     6,994              
Investments at fair value   6,663   6,663     7,029              
Principal amount   6,834   6,834     7,100              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Sovos Compliance, LLC (fka Taxware, LLC)                            
Schedule of Investments [Line Items]                            
Cost   6,617   6,617     5,566              
Investments at fair value   6,486   6,486     5,584              
Principal amount   6,660   6,660     5,561              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Spring Education Group, Inc.                            
Schedule of Investments [Line Items]                            
Cost   10,001   10,001     10,066              
Investments at fair value   10,086   10,086     10,225              
Principal amount   10,076   10,076     10,154              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Storable, Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,522   5,522     3,818              
Investments at fair value   4,806   4,806     3,843              
Principal amount   5,547   5,547     3,820              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Summit Acquisition Inc.                            
Schedule of Investments [Line Items]                            
Cost   743   743                    
Investments at fair value   747   747                    
Principal amount   744   744                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Sword Purchaser, LLC                            
Schedule of Investments [Line Items]                            
Cost   2,705   2,705                    
Investments at fair value   2,838   2,838                    
Principal amount   2,840   2,840                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Symplr Software, Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,618   3,618     3,646              
Investments at fair value   3,035   3,035     3,109              
Principal amount   3,621   3,621     3,650              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | TRC Companies LLC                            
Schedule of Investments [Line Items]                            
Cost             5,318              
Investments at fair value             5,355              
Principal amount             5,332              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Team.blue Finco SARL                            
Schedule of Investments [Line Items]                            
Cost   5,978   5,978     7,205              
Investments at fair value   5,873   5,873     7,267              
Principal amount   5,985   5,985     7,220              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Tegra118 Wealth Solutions, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,249   7,249                    
Investments at fair value   7,347   7,347                    
Principal amount   7,304   7,304                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Tempo Acquisition, LLC                            
Schedule of Investments [Line Items]                            
Cost   1,970   1,970                    
Investments at fair value   1,820   1,820                    
Principal amount   2,286   2,286                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Therapy Brands Holdings LLC                            
Schedule of Investments [Line Items]                            
Cost   5,792   5,792     5,834              
Investments at fair value   5,801   5,801     5,412              
Principal amount   5,801   5,801     5,847              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Thermostat Purchaser III, Inc.                            
Schedule of Investments [Line Items]                            
Cost   8,547   8,547     8,612              
Investments at fair value   8,430   8,430     8,602              
Principal amount   8,551   8,551     8,617              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | TransDigm Inc. 1                            
Schedule of Investments [Line Items]                            
Cost             1,481              
Investments at fair value             1,485              
Principal amount             1,477              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | TransDigm Inc. 2                            
Schedule of Investments [Line Items]                            
Cost             889              
Investments at fair value             891              
Principal amount             886              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Tricorbraun Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,005   7,005     7,057              
Investments at fair value   6,738   6,738     6,876              
Principal amount   7,027   7,027     7,082              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | TruGreen Limited Partnership                            
Schedule of Investments [Line Items]                            
Cost   3,244   3,244                    
Investments at fair value   3,306   3,306                    
Principal amount   3,385   3,385                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | UKG Inc.                            
Schedule of Investments [Line Items]                            
Cost   3,372   3,372                    
Investments at fair value   3,331   3,331                    
Principal amount   3,428   3,428                    
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | US Fertility Enterprises, LLC                            
Schedule of Investments [Line Items]                            
Cost   4,725   4,725     4,356              
Investments at fair value   4,763   4,763     4,400              
Principal amount   4,747   4,747     4,378              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | VSTG Intermediate Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,021   7,021     7,074              
Investments at fair value   6,917   6,917     7,082              
Principal amount   7,027   7,027     7,082              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | VT Topco, Inc.                            
Schedule of Investments [Line Items]                            
Cost             6,769              
Investments at fair value             6,781              
Principal amount             6,865              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Valcour Packaging, LLC 1                            
Schedule of Investments [Line Items]                            
Cost   6,975   6,975     1,629              
Investments at fair value   7,006   7,006     1,660              
Principal amount   6,943   6,943     1,641              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Valcour Packaging, LLC 2                            
Schedule of Investments [Line Items]                            
Cost   2,336   2,336     2,311              
Investments at fair value   1,861   1,861     1,804              
Principal amount   2,337   2,337     2,311              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Viant Medical Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost   7,668   7,668     7,724              
Investments at fair value   7,562   7,562     7,680              
Principal amount   7,686   7,686     7,745              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Xplor T1, LLC                            
Schedule of Investments [Line Items]                            
Cost   10,710   10,710     12,516              
Investments at fair value   10,404   10,404     12,600              
Principal amount   10,753   10,753     12,569              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Zelis Cost Management Buyer, Inc.                            
Schedule of Investments [Line Items]                            
Cost   12,301   12,301     12,395              
Investments at fair value   12,257   12,257     12,316              
Principal amount   12,300   12,300     12,394              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Zest Acquisition Corp.                            
Schedule of Investments [Line Items]                            
Cost   3,821   3,821     3,822              
Investments at fair value   3,821   3,821     3,884              
Principal amount   3,879   3,879     3,884              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Zone Climate Services, Inc. 1                            
Schedule of Investments [Line Items]                            
Cost   9,495   9,495     9,543              
Investments at fair value   9,454   9,454     9,625              
Principal amount   9,550   9,550     9,625              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | Zone Climate Services, Inc. 2                            
Schedule of Investments [Line Items]                            
Cost   2,087   2,087     2,098              
Investments at fair value   2,078   2,078     2,116              
Principal amount   2,099   2,099     2,116              
SLP IV | Investment, Identifier [Axis]: Funded Investments - First lien | athenahealth Group Inc.                            
Schedule of Investments [Line Items]                            
Cost   5,217   5,217     4,717              
Investments at fair value   5,234   5,234     4,737              
Principal amount   5,234   5,234     4,722              
SLP IV | Investment, Identifier [Axis]: Largest Portfolio Company Investment                            
Schedule of Investments [Line Items]                            
Principal amount   18,327   18,327     18,217              
SLP IV | Investment, Identifier [Axis]: Top Five Largest Portfolio Company Investments                            
Schedule of Investments [Line Items]                            
Principal amount   64,843   64,843     64,111              
SLP IV | Investment, Identifier [Axis]: Unfunded Investments - First lien | Citrin Cooperman Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   (6)   (6)     (14)              
Investments at fair value   (9)   (9)     6              
Principal amount   615   615     1,364              
SLP IV | Investment, Identifier [Axis]: Unfunded Investments - First lien | Cohnreznick Advisory LLC                            
Schedule of Investments [Line Items]                            
Cost             (3)              
Investments at fair value             5              
Principal amount             791              
SLP IV | Investment, Identifier [Axis]: Unfunded Investments - First lien | HIG Operations Holdings, Inc.                            
Schedule of Investments [Line Items]                            
Cost             0              
Investments at fair value             0              
Principal amount             1,236              
SLP IV | Investment, Identifier [Axis]: Unfunded Investments - First lien | Secretariat Advisors LLC                            
Schedule of Investments [Line Items]                            
Cost   0   0     0              
Investments at fair value   (23)   (23)     3              
Principal amount   764   764     742              
SLP IV | Investment, Identifier [Axis]: Unfunded Investments - First lien | US Fertility Enterprises, LLC                            
Schedule of Investments [Line Items]                            
Cost   (1)   (1)     0              
Investments at fair value   1   1     3              
Principal amount   244   244     663              
SLP IV | Unfunded Investments                            
Schedule of Investments [Line Items]                            
Cost   (7)   (7)     (17)              
Investments at fair value   (31)   (31)     17              
Principal amount   1,623   1,623     4,796              
SLP IV | Revolving Credit Facility                            
Schedule of Investments [Line Items]                            
Credit facility   $ 522,137   $ 522,137     $ 471,737              
SLP IV | Revolving Credit Facility | Line of Credit                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate     1.50%                      
SLP IV | Revolving Credit Facility | Line Of Credit, Class A Advance                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 1.50%                          
SLP IV | Revolving Credit Facility | Line Of Credit, Class B Advance                            
Schedule of Investments [Line Items]                            
Basis spread on variable rate 4.75%                          
[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] 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
[4] Investment is held by New Mountain Finance Corporation.
[5] 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.
[6] 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.
[7] 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.
[8] Investment is held by New Mountain Finance Corporation
[9] 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
[10] 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.
[11] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€")
[12] Par amount is denominated in United States Dollar unless otherwise noted, which may include British Pound ("£") and/or Euro ("€").
[13] Investment is held by New Mountain Finance SBIC, L.P.
[14] 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.
[15] Investment is held by New Mountain Finance Holdings, L.L.C.
[16] 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.
[17] 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
[18] Investment is held by New Mountain Finance Holdings, L.L.C.
[19] Investment is held by New Mountain Finance SBIC, L.P.
[20] 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 Book Runner and Joint Lead Arrangers along with Deutsche Bank Securities Inc., State Street Bank and Trust Company and Wells Fargo Securities, LLC, and the lenders party thereto. See Note 7. Borrowings, for details.
[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 December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $20,249.
[22] 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, 2025, 15.4% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[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, 2026, 19.9% of the Company’s total assets are represented by investments at fair value that are considered non-qualifying assets.
[24] Investment is held by New Mountain Finance SBIC II, L.P.
[25] Investment is held by New Mountain Finance SBIC II, L.P.
[26] 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, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $27,116.
[27] 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 December 31, 2025, the Company's stated value of its share, plus unpaid compounded dividends, was $90,671.
[28] 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 December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $15,827.
[29] 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, 2026 and December 31, 2025, along with transactions during the nine months ended September 30, 2026 in which the issuer was a non-controlled/affiliated investment, is as follows:
Portfolio CompanyFair Value at December 31, 2025Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2026Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$18,337 $— $— $4,311 $22,648 $— $944 $1,423 $— 
Sierra Hamilton Holdings Corporation2,000 — — (111)1,889 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC40,365 4,804 — (14)45,155 — 3,789 1,019 188 
Total Non-Controlled/Affiliated Investments$60,702 $4,804 $— $4,186 $69,692 $— $4,733 $2,442 $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.
[30] 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, 2025 and December 31, 2024 along with transactions during the year ended December 31, 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 December 31, 2025Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
Eagle Infrastructure Services, LLC (fka FR Arsenal Holdings II Corp.) / Eagle Infrastructure Super HoldCo, LLC$19,156 $— $— $(819)$18,337 $— $1,321 $— $— 
Sierra Hamilton Holdings Corporation2,000 — — — 2,000 — — — — 
TVG-Edmentum Holdings, LLC / Edmentum Ultimate Holdings, LLC91,620 6,967 — (58,222)40,365 — 4,357 2,594 250 
Total Non-Controlled/Affiliated Investments$112,776 $6,967 $— $(59,041)$60,702 $— $5,678 $2,594 $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 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.
[31] The Company holds preferred equity in Eclipse Topco, Inc. and a first lien term loan and a first lien revolver 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, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $1,632.
[32] 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 December 31, 2025, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $2,226.
[33] The Company holds Series C-2 preferred units and Class B-1 and Class B-2 of common 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, 2026, the Company's stated value of its Series C-2 preferred shares, Class B-1 and Class B-2 common equity investments, plus unpaid compounded dividends, was $9,737, $48,080 and $29,707, respectively.
[34] The Company holds ordinary shares and Class B-1 and 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 December 31, 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.
[35] 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.
[36] 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.
[37] The Company holds an LP Interest in Firebird Co-Invest L.P. and a first lien term loan, a first lien delayed draw and a first lien revolver in Firebird Acquisition Corp, Inc., a wholly-owned subsidiary of Firebird Co-Invest L.P.
[38] 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.
[39] The Company's common equity investment in HBWM Holdings, LLC is entitled to receive a cumulative return that is calculated using the unreturned original investment plus any unpaid compounded dividends. As of September 30, 2026, the Company's unreturned original investment, plus any unpaid compounded dividends, was $4,827.
[40] Investment is held by NMF HB, Inc.
[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 December 31, 2025, the Company's unreturned original investment, plus any unpaid compounded dividends, was $4,776.
[42] Investment is held by NMF HB, Inc.
[43] The Company holds Class A-1 common units in Jawbreaker Topco, L.P., and two first lien term loans, a first lien delayed draw term loan and a first lien revolver in Jawbreaker Parent, Inc., a wholly-owned subsidiary of Jawbreaker Topco, L.P.
[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, 2026, the Company's stated value of its equity investment, plus unpaid compounded dividends, was $14,279.
[45] 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 December 31, 2025, the Company's stated value of its share, plus unpaid compounded dividends, was $13,323.
[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 December 31, 2025 and December 31, 2024 along with transactions during the year ended December 31, 2025 in which the issuer was a controlled 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 December 31, 2025Net Realized Gains (Losses)Interest
Income		Dividend
Income		Other
Income
National HME, Inc./NHME Holdings Corp.$3,000 $— $— $(3,000)$— $— $— $— $— 
New Benevis Topco, LLC / New Benevis Holdco, Inc.140,102 21,456 — (7,094)154,464 — 14,309 — 1,383 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,076 7,657 — (6,900)63,833 — 5,759 — 500 
NM NL Holdings, L.P.104,512 — — 1,584 106,096 — — 8,740 — 
NM GP Holdco, LLC322 — — 68 390 — — 44 — 
NM YI LLC9,960 — — (1,319)8,641 — — 886 — 
NMFC Senior Loan Program III LLC160,000 — — — 160,000 — — 22,600 — 
NMFC Senior Loan Program IV LLC112,400 — — — 112,400 — — 15,315 — 
UniTek Global Services, Inc.107,524 72,385 (60,582)(46,146)73,181 38,898 516 10,851 1,070 
Total Controlled Investments$700,896 $101,498 $(60,582)$(62,807)$679,005 $38,898 $20,584 $58,436 $2,953 

(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] Investment is held by New Mountain Net Lease Corporation.
[49] 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, 2026 and December 31, 2025, along with transactions during the nine months ended September 30, 2026 in which the issuer was a controlled investment, is as follows:
Portfolio CompanyFair Value at December 31, 2025Gross Additions (A)Gross Redemptions (B)Net Change In Unrealized Appreciation (Depreciation)Fair Value at September 30, 2026Net Realized Gains (Losses)Interest IncomeDividend IncomeOther Income
National HME, Inc./NHME Holdings Corp.$— $— $(12,872)$12,872 $— $(12,872)$— $— $— 
New Benevis Topco, LLC / New Benevis Holdco, Inc.154,464 8,931 (76,831)5,185 91,749 (5,718)6,855 — — 
New Permian Holdco, Inc. / New Permian Holdco, L.L.C.63,833 4,561 — (1,000)67,394 — 4,563 — 375 
NM NL Holdings, L.P.106,096 5,926 (6,972)6,909 111,959 (3)— 6,601 185 
NM GP Holdco, LLC390 75 (64)5 406 — — 33 — 
NM YI, LLC8,641 — — 143 8,784 — — 697 — 
NMFC Senior Loan Program III LLC160,000 — — (4,800)155,200 — — 14,260 — 
NMFC Senior Loan Program IV LLC112,400 — — (10,116)102,284 — — 9,695 — 
UniTek Global Services, Inc.73,181 10,164 — 9,739 93,084 — — 10,164 750 
Total Controlled Investments$679,005 $29,657 $(96,739)$18,937 $630,860 $(18,593)$11,418 $41,450 $1,310 
(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 denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of December 31, 2025, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loans is $16,051 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan, undrawn revolver and drawn revolver is $19,212, $7,529, $1,282 and $123, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[52] Investment is denominated in foreign currency and is translated into U.S. dollars as of the valuation date. As of September 30, 2026, the par value U.S. dollar equivalent of the Viper Bidco, Inc. first lien term loan is $15,686 and the Nelipak Holding Company first lien term loan, undrawn delayed draw term loan and undrawn revolver are $18,398, $7,264 and $1,355, respectively. See Note 2. Summary of Significant Accounting Policies, for details.
[53] The Company holds common stock in Notorious Buyer, LLC, and a first lien term loan, a subordinated loan, and a first lien revolver in Notorious Topco, LLC and Notorious Holdings, LLC, two wholly-owned subsidiaries of Notorious Buyer, LLC.
[54] The Company holds common units in Notorious Buyer, LLC, and a first lien term loan, a subordinated loan, and a first lien revolver in Notorious Topco, LLC and Notorious Holdings, LLC, two wholly-owned subsidiaries of Notorious Buyer, LLC.
[55] The Company holds one claim related to a collateralized agreement to resell on its Consolidated Statements of Assets and Liabilities with a cost basis of $30,000 and a fair value of $5,700 as of September 30, 2026. See Note 2. Summary of Significant Accounting Policies, for details.
[56] Investment is on non-accrual status as of December 31, 2025. See Note 3. Investments, for details.
[57] 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, 2025. See Note 2. Summary of Significant Accounting Policies, for details.
[58] Investment is held by NMF Permian Holdings, LLC.
[59] Investment is held by NMF Permian Holdings, LLC.
[60] Investment is held by NMF Pioneer, Inc.
[61] Investment is held by NMF Pioneer, Inc.
[62] The Company holds Class A-1 Common Units in Ambrosia Holdco Corp. and two first lien term loans, two subordinated loans and a first lien delayed draw in TMK Hawk Parent, Corp. TMK Hawk Parent, Corp. is a wholly-owned subsidiary of Ambrosia Intermediate Holdco Corp., which is a wholly-owned subsidiary of Ambrosia Holdco Corp
[63] The Company holds Class A-1 Common Units in Ambrosia Topco LLC and two first lien term loans, a subordinated loan and a first lien delayed draw in TMK Hawk Parent, Corp., a wholly-owned subsidiary of Ambrosia Topco LLC.