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Transactions with Affiliate Companies - Schedule of Fair Value Roll Forward (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [1],[2]   $ 4,008,973   $ 4,008,973      
PIK interest capitalized (cost) $ 5,676   $ 3,008 8,821 $ 6,002    
Net realized gain (loss)       (1,640) 224    
Net change in unrealized gain (loss)       (10,560) 5,222    
Fair value at the ending [3],[4] 5,087,652     5,087,652      
Non-controlled affiliate company investments              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   145,755 [1],[2]   145,755 [1],[2] 75,314    
Transfers in (out)       0 10,588    
Purchases (cost)       101,207 36,327    
Sales and paydowns (cost)       (2,306) (89)    
PIK interest capitalized (cost) 562   77 1,079 146    
Discount accretion       142 61    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss) (4,043)   (9,412) (4,266) (10,055)    
Fair value at the ending 241,611 [3],[4]   112,292 241,611 [3],[4] 112,292    
Non-controlled affiliate company investments | Baystate Sewage Disposal, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       13,154      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 13,154     13,154      
Non-controlled affiliate company investments | Born To Run, LLC.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   2,308   2,308 0    
Transfers in (out)       0 10,588    
Purchases (cost)       0 865    
Sales and paydowns (cost)       0 (13)    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       261 (9,256)    
Fair value at the ending 2,569   2,184 2,569 2,184    
Non-controlled affiliate company investments | ClearlyRated Capital (Class A Units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   5,500   5,500 5,500    
Transfers in (out)       0 0    
Purchases (cost)       3,000 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       1 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       27 0    
Fair value at the ending 8,528   5,500 8,528 5,500    
Non-controlled affiliate company investments | MC Voyager SPV II LLC (Equity Commitment)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       13,306      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 13,306     13,306      
Non-controlled affiliate company investments | Nastel Technologies, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   8,089   8,089 7,726    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       7 5    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       619 302    
Fair value at the ending 8,715   8,033 8,715 8,033    
Non-controlled affiliate company investments | NFS Intermediate Holdco, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       53,255      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 53,255     53,255      
Non-controlled affiliate company investments | Second Avenue S F R Holdings I I L L C              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         3,323    
Transfers in (out)         0    
Purchases (cost)         0    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         0    
Fair value at the ending     3,323   3,323    
Non-controlled affiliate company investments | S F R Holdco, L L C              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   18,618   18,618 19,123    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       264 (1,439)    
Fair value at the ending 18,882   17,684 18,882 17,684    
Non-controlled affiliate company investments | S F R Holdco 2, L L C              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   3,777   3,777      
Transfers in (out)       0      
Purchases (cost)       2,375      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       96      
Fair value at the ending 6,248     6,248      
Non-controlled affiliate company investments | SheerTrans Solutions, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   19,751   19,751 15,252    
Transfers in (out)       0 0    
Purchases (cost)       1,879 4,478    
Sales and paydowns (cost)       (1,050) (16)    
PIK interest capitalized (cost)       190 146    
Discount accretion       14 11    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       (1,280) 138    
Fair value at the ending 19,504   20,009 19,504 20,009    
Non-controlled affiliate company investments | Summit Professional Education, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   28,065   28,065 0    
Transfers in (out)       0 0    
Purchases (cost)       2,595 26,770    
Sales and paydowns (cost)       (1,196) 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       20 2    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       4 (2)    
Fair value at the ending 29,488   26,770 29,488 26,770    
Non-controlled affiliate company investments | Triad Financial Services, Inc.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   4,803   4,803 0    
Transfers in (out)       0 0    
Purchases (cost)       1,521 4,214    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       16 (313)    
Fair value at the ending 6,340   3,901 6,340 3,901    
Non-controlled affiliate company investments | Whistler Parent Holdings III, Inc.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   26,291   26,291      
Transfers in (out)       0      
Purchases (cost)       1,286      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       889      
Discount accretion       46      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       (6,518)      
Fair value at the ending 21,994     21,994      
Non-controlled affiliate company investments | YBR OZ ECE, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       8,836      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       3      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       38      
Fair value at the ending 8,877     8,877      
Non-controlled affiliate company investments | Zodega Landscaping, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   28,553   28,553 24,390    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       (60) (60)    
PIK interest capitalized (cost)       0 0    
Discount accretion       51 43    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       2,207 515    
Fair value at the ending 30,751   24,888 30,751 24,888    
Investment, Identifier [Axis]: 300 N. Michigan Mezz, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6]   1,000   1,000      
Fair value at the ending [4],[7],[8] 1,000     1,000      
Investment, Identifier [Axis]: 3C Buyer LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,218     1,218      
Investment, Identifier [Axis]: 3C Buyer LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 1,604     1,604      
Investment, Identifier [Axis]: 3C Buyer LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 795     795      
Investment, Identifier [Axis]: 3C Buyer LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,922     2,922      
Investment, Identifier [Axis]: 3C Buyer LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 1,619     1,619      
Investment, Identifier [Axis]: 601 Lafayette Mezz LLC, Junior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   0   0      
Fair value at the ending [4],[8],[9],[13] 0     0      
Investment, Identifier [Axis]: 601 Lafayette Mezz LLC, Junior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   0   0      
Fair value at the ending [4],[8],[9],[13] 2,943     2,943      
Investment, Identifier [Axis]: 8th Avenue Food & Provisions, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[14]   2,947   2,947      
Fair value at the ending [4],[8] 7,857     7,857      
Investment, Identifier [Axis]: 8th Avenue Food & Provisions, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[14]   1,963   1,963      
Fair value at the ending [4],[8] 4,273     4,273      
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   948   948      
Fair value at the ending [4],[16] $ 819     $ 819      
Number of shares held 385,027 [16]     385,027 [16]   385,027 [15]  
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[19]   15,581   $ 15,581      
Fair value at the ending [4],[10],[20],[21] $ 15,581     15,581      
Investment, Identifier [Axis]: 95 Percent Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: A360, Inc., Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   888   888      
Fair value at the ending [4] $ 812     $ 812      
Number of shares held 838     838   838  
Investment, Identifier [Axis]: A360, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   10,343   $ 10,343      
Fair value at the ending [4],[23] $ 10,448     10,448      
Investment, Identifier [Axis]: A360, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: A360, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 885     885      
Investment, Identifier [Axis]: AMS Parent, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   10,943   10,943      
Fair value at the ending [4],[24] 14,362     14,362      
Investment, Identifier [Axis]: API Holdings III Corp., Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,398   1,398      
Fair value at the ending [4] 1,568     1,568      
Investment, Identifier [Axis]: API Holdings III Corp., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   156   156      
Fair value at the ending [4] 163     163      
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   14,981   14,981      
Fair value at the ending [4],[7] 14,981     14,981      
Investment, Identifier [Axis]: ASG II, LLC, Unitranche Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,247   2,247      
Fair value at the ending [4] 2,247     2,247      
Investment, Identifier [Axis]: ASG III, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: ASG III, LLC , Senior Secured Loans2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   8,505   8,505      
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   4,255   4,255      
Fair value at the ending [4],[9],[13] 6,291     6,291      
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[22]   20,200   20,200      
Fair value at the ending [4],[7],[23] 20,175     20,175      
Investment, Identifier [Axis]: ASG III, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 8,495     8,495      
Investment, Identifier [Axis]: Accelevation LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23] 14,056     14,056      
Investment, Identifier [Axis]: Accelevation LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 443     443      
Investment, Identifier [Axis]: Accelevation LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,260     1,260      
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   329   329      
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   15,429   15,429      
Investment, Identifier [Axis]: Acquia Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[25]   3,092   3,092      
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 588     588      
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 15,429     15,429      
Investment, Identifier [Axis]: Acquia Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 3,092     3,092      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held [16] 314,584     314,584      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series B units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held [16] 45,874     45,874      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series C preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held [16] 67,283     67,283      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series L units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held [16] 325     325      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   $ 0      
Number of shares held [15]           314,584  
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series B units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   0      
Number of shares held [15]           45,874  
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series L units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   0      
Number of shares held [15]           325  
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Equity Securities, Series C preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   0      
Number of shares held [15]           67,283  
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[27]   1,674   1,674      
Fair value at the ending [4],[8],[28],[29] $ 1,866     1,866      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[27]   2,037   2,037      
Fair value at the ending [4],[8],[28],[29] 1,489     1,489      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[27],[30]   0   0      
Fair value at the ending [4],[8],[28],[29] 0     0      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,409   1,409      
Fair value at the ending [4],[29] 1,484     1,484      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,715   1,715      
Fair value at the ending [4],[29] 1,186     1,186      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Junior Secured Loans 6              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[30]   0   0      
Fair value at the ending [4],[29] 0     0      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[27]   5,228   5,228      
Fair value at the ending [4],[8],[28],[29] 5,613     5,613      
Investment, Identifier [Axis]: Adept AG Holdings, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   4,402   4,402      
Fair value at the ending [4],[29] 4,471     4,471      
Investment, Identifier [Axis]: Air Transport Components Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 6,913     6,913      
Investment, Identifier [Axis]: Air Transport Components Acquisition, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Air Transport Components Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Aligned Exteriors Group Holdco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   13,755   13,755      
Fair value at the ending [4],[23] 13,770     13,770      
Investment, Identifier [Axis]: Aligned Exteriors Group Holdco, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Aligned Exteriors Group Holdco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Ambient Enterprises Holdco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   24,309   24,309      
Investment, Identifier [Axis]: Ambient Enterprises Holdco, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 1,985     1,985      
Investment, Identifier [Axis]: Ambient Enterprises Holdco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 938     938      
Investment, Identifier [Axis]: Ambient Enterprises Holdco, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 19,398     19,398      
Investment, Identifier [Axis]: Ambient Enterprises Holdco, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 5,392     5,392      
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   68   68      
Fair value at the ending [4] 36     36      
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 2,746     2,746      
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[11],[12]   2,742   2,742      
Investment, Identifier [Axis]: American Broadband and Telecommunications Company LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   252   252      
Fair value at the ending [4],[9] 255     255      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   9,830   9,830      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,702   3,702      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,000   2,000      
Fair value at the ending [4],[9],[13] 3,362     3,362      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[10] 9,829     9,829      
Investment, Identifier [Axis]: Animal Dermatology Group, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 3,702     3,702      
Investment, Identifier [Axis]: AppLogic Networks OpCo I LLC (fka Sandvine Corporation), Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[29] 350     350      
Investment, Identifier [Axis]: AppLogic Networks OpCo I LLC, Equity Securities, (fka Sandvine Corporation) Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] $ 0     $ 0      
Number of shares held [7] 23,212     23,212      
Investment, Identifier [Axis]: AppLogic Networks OpCo I LLC, Equity Securities, (fka Sandvine Corporation) Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] $ 95     $ 95      
Number of shares held [7] 28,198     28,198      
Investment, Identifier [Axis]: Appriss Health, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   6,354   $ 6,354      
Fair value at the ending [4],[21] $ 3,168     3,168      
Investment, Identifier [Axis]: Appriss Health, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   8,736   8,736      
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   143   143      
Investment, Identifier [Axis]: Aptean, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   5,377   5,377      
Fair value at the ending [4],[7],[10] 5,325     5,325      
Investment, Identifier [Axis]: Aras Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   278   278      
Fair value at the ending [4],[9] 278     278      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[18]   11,503   11,503      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   0   0      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13] 0     0      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13] 0     0      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11]   0   0      
Fair value at the ending [4],[8],[9] 114     114      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[10],[26] 12,087     12,087      
Investment, Identifier [Axis]: Arax Midco, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 3,688     3,688      
Investment, Identifier [Axis]: Archtop Fiber Intermediate LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 25,145     25,145      
Investment, Identifier [Axis]: Archtop Fiber Intermediate LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Arcserve Cayman GP LLC (fka Arcstor Midco, LLC), Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           157,895  
Investment, Identifier [Axis]: Arcserve Cayman GP LLC (fka Arcstor Midco, LLC), Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           294,118  
Investment, Identifier [Axis]: Arcserve Cayman GP LLC, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 157,895     157,895      
Investment, Identifier [Axis]: Arcserve Cayman GP LLC, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 294,118     294,118      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,474   $ 1,474      
Number of shares held           157,895  
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,745   2,745      
Number of shares held           294,118  
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   0   0      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   468   468      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP (fka Arcstor Midco, LLC), Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   478   478      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 1,986     $ 1,986      
Number of shares held 157,895     157,895      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 3,700     $ 3,700      
Number of shares held 294,118     294,118      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] $ 0     $ 0      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] 489     489      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Junior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] 501     501      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13],[29] 882     882      
Investment, Identifier [Axis]: Arcserve Cayman Opco LP, Senior Secured Loans (fka Arcstor Midco, LLC) (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12],[31]   882   882      
Investment, Identifier [Axis]: Argano, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   533   533      
Fair value at the ending [4],[16] $ 471     $ 471      
Number of shares held 62,574 [16]     62,574 [16]   62,574 [15]  
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,776   $ 1,776      
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18]   13,531   13,531      
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   2,484   2,484      
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   6,739   6,739      
Investment, Identifier [Axis]: Arizona Natural Resources, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   2,910   2,910      
Investment, Identifier [Axis]: Ascent Midco, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   629   629      
Fair value at the ending [4],[16] $ 572     $ 572      
Number of shares held 725,806 [16]     725,806 [16]   725,806 [15]  
Investment, Identifier [Axis]: Assembly Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 28,800     $ 28,800      
Investment, Identifier [Axis]: Assembly Buyer, LLC, Senior Secured Loans (Delayed Draw)1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Assembly Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Assembly Buyer, LLC,Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Aston US Finco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[14],[32]   9,148   9,148      
Fair value at the ending [4],[8],[33] 18,334     18,334      
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[26] 32,605     32,605      
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Attom Intermediate Holdco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   10,075   10,075      
Investment, Identifier [Axis]: Avalara, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Avison Young (USA) Inc, Junior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[31],[34]   1,495   1,495      
Investment, Identifier [Axis]: Avison Young (USA) Inc, Junior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[31],[34]   380   380      
Investment, Identifier [Axis]: Avison Young (USA) Inc., Equity Securities, Class A preferred shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[31],[34]   774   774      
Fair value at the ending [4],[8],[29],[35] $ 176     $ 176      
Number of shares held 2,036,442 [8],[29],[35]     2,036,442 [8],[29],[35]   2,036,442 [6],[31],[34]  
Investment, Identifier [Axis]: Avison Young (USA) Inc., Equity Securities, Class F common shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   0   $ 0      
Fair value at the ending [4],[8],[35] $ 0     $ 0      
Number of shares held 1,521 [8],[35]     1,521 [8],[35]   1,521 [6],[34]  
Investment, Identifier [Axis]: Avison Young (USA) Inc., Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[29],[35] $ 979     $ 979      
Investment, Identifier [Axis]: Avison Young (USA) Inc., Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[29],[35] 149     149      
Investment, Identifier [Axis]: Avison Young (USA) Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[31],[34]   768   768      
Fair value at the ending [4],[8],[29],[35] 732     732      
Investment, Identifier [Axis]: B2B Industrial Products LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   9,469   9,469      
Fair value at the ending [4],[7] 9,391     9,391      
Investment, Identifier [Axis]: B2B Industrial Products LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   2,191   2,191      
Fair value at the ending [4],[7] 2,174     2,174      
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,427   1,427      
Fair value at the ending [4],[9] 3,482     3,482      
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[18],[22],[25]   50,098   50,098      
Fair value at the ending [4],[7],[10],[20],[23],[26] 49,649     49,649      
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   1,909   1,909      
Fair value at the ending [4],[7] 1,891     1,891      
Investment, Identifier [Axis]: BLP Buyer, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   6,027   6,027      
Fair value at the ending [4],[24] 5,973     5,973      
Investment, Identifier [Axis]: BTR Opco LLC (Class A common units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 0     0      
Investment, Identifier [Axis]: BTR Opco LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,131   1,131      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       76      
Fair value at the ending $ 1,207     $ 1,207      
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC) (Class A common units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         0    
Transfers in (out)         677    
Purchases (cost)         0    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         (677)    
Fair value at the ending     0   0    
Number of units held 659     659     659
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         0    
Transfers in (out)         0    
Purchases (cost)         366    
Sales and paydowns (cost)         (11)    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         11    
Fair value at the ending     366   366    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         0    
Transfers in (out)         1,611    
Purchases (cost)         81    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         126    
Fair value at the ending     1,818   1,818    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         0    
Transfers in (out)         8,300    
Purchases (cost)         418    
Sales and paydowns (cost)         (2)    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         (8,716)    
Fair value at the ending     0   0    
Investment, Identifier [Axis]: BTR Opco LLC (fka Born To Run, LLC), Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Number of shares held           659  
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC), Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   1,177   1,177      
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC), Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   0   0      
Investment, Identifier [Axis]: BTR Opco LLC (fka Born to Run, LLC), Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12],[31]   1,131   1,131      
Investment, Identifier [Axis]: BTR Opco LLC 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,177   1,177      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       185      
Fair value at the ending $ 1,362     1,362      
Investment, Identifier [Axis]: BTR Opco LLC 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 0     0      
Investment, Identifier [Axis]: BTR Opco LLC, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 659     659      
Investment, Identifier [Axis]: BTR Opco LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] $ 1,362     $ 1,362      
Investment, Identifier [Axis]: BTR Opco LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] 0     0      
Investment, Identifier [Axis]: BTR Opco LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13],[29] 1,207     1,207      
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   10,000   10,000      
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   842   842      
Investment, Identifier [Axis]: BTRS Holdings Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   400   400      
Investment, Identifier [Axis]: BTRS Holdings Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 26,398     26,398      
Investment, Identifier [Axis]: BTRS Holdings Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 2,255     2,255      
Investment, Identifier [Axis]: BW 51f, L.P, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   9,000   9,000      
Investment, Identifier [Axis]: BW 51f, L.P., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 9,000     9,000      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       4,312      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 4,312     4,312      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC (Class A-1 preferred units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       8,842      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 8,842     $ 8,842      
Number of units held 8,841,724     8,841,724      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   $ 0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 0     0      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 0     0      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC, Equity Securities, Equity commitment (Class A-1 preferred units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 8,842     $ 8,842      
Number of shares held 8,841,724     8,841,724      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 4,312     $ 4,312      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Baystate Sewage Disposal, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Bench Walk Lead, LL, Equity Securities, Commitment to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   1,638   1,638      
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Equity Securities, Commitment to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[16] 1,887     1,887      
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13] 4,181     4,181      
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   28,256   28,256      
Fair value at the ending [4],[8] 30,262     30,262      
Investment, Identifier [Axis]: Bench Walk Lead, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   1,671   1,671      
Fair value at the ending [4],[8] 1,789     1,789      
Investment, Identifier [Axis]: Bloomerang, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18],[22]   15,989   15,989      
Investment, Identifier [Axis]: Bloomerang, LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Bloomerang, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   240   240      
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[10],[23] 16,110     16,110      
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 1,611     1,611      
Investment, Identifier [Axis]: Bloomerang, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 800     800      
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Bluesight, Inc, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19],[22]   30,087   30,087      
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 528     $ 528      
Number of shares held 528     528      
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 28     $ 28      
Number of shares held 282,635     282,635      
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   528   $ 528      
Number of shares held           528  
Investment, Identifier [Axis]: Bluesight, Inc., Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           282,635  
Investment, Identifier [Axis]: Bluesight, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] $ 0     0      
Investment, Identifier [Axis]: Bluesight, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[21],[23] 30,288     30,288      
Investment, Identifier [Axis]: Bluesight, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,924   3,924      
Fair value at the ending [4],[24] 3,951     3,951      
Investment, Identifier [Axis]: Bluesight, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   26,163   26,163      
Fair value at the ending [4],[23] 26,337     26,337      
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,151   1,151      
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   18,875   18,875      
Investment, Identifier [Axis]: Bonterra LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,101   3,101      
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   2,479   2,479      
Investment, Identifier [Axis]: Brickell Bay Acquisition Corp, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   6,898   6,898      
Investment, Identifier [Axis]: Buck Design LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 9,900     9,900      
Investment, Identifier [Axis]: Buck Design LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Buck Design LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   4,395   4,395      
Fair value at the ending [4],[7] 4,188     4,188      
Investment, Identifier [Axis]: CE Intermediate, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18],[19],[25]   37,740   37,740      
Fair value at the ending [4],[7],[10],[21],[26] 36,734     36,734      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 8,440     8,440      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 5,371     5,371      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 10,277     10,277      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   8,485   8,485      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   5,399   5,399      
Investment, Identifier [Axis]: CGI Automated Manufacturing, LLC., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   10,331   10,331      
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   413   413      
Fair value at the ending [4],[9] 413     413      
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   1,170   1,170      
Fair value at the ending [4],[21] 1,169     1,169      
Investment, Identifier [Axis]: Calabrio, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   7,960   7,960      
Fair value at the ending [4],[21] 7,920     7,920      
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   4,912   4,912      
Investment, Identifier [Axis]: Calienger Holdings, L.L.C, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   568   568      
Fair value at the ending [4],[16] $ 568     $ 568      
Number of shares held 568,181 [16]     568,181 [16]   568,181 [15]  
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] $ 4,888     $ 4,888      
Investment, Identifier [Axis]: Calienger Holdings, L.L.C., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Caputo Cheese Interco Corp., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 2,778     $ 2,778      
Number of shares held 2,777,778     2,777,778      
Investment, Identifier [Axis]: Caputo Cheese Interco Corp., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 14,775     $ 14,775      
Investment, Identifier [Axis]: Caputo Cheese Interco Corp., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 123     123      
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   3,600   3,600      
Fair value at the ending [4],[16] $ 3,781     $ 3,781      
Number of shares held 3,781 [16]     3,781 [16]   3,600 [15]  
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Equity Securities, Class B units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   521   $ 521      
Fair value at the ending [4],[16] $ 527     $ 527      
Number of shares held 4,011 [16]     4,011 [16]   4,011 [15]  
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[22]   18,135   $ 18,135      
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] $ 3,683     3,683      
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[23] 18,044     18,044      
Investment, Identifier [Axis]: Caravel Autism Health, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,791     7,791      
Investment, Identifier [Axis]: Cardinal Parent, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 9,650     9,650      
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[36]   4,178   4,178      
Fair value at the ending [4],[37] $ 4,278     $ 4,278      
Number of shares held 4,177 [37]     4,177 [37]   4,177 [36]  
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   16,252   $ 16,252      
Fair value at the ending [4],[26] $ 16,500     16,500      
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 233     233      
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Senior Secured Loans (Delayed Draw) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 129     129      
Investment, Identifier [Axis]: Catalyst Data Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Cdata Software, Inc.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[22]   45,950   45,950      
Investment, Identifier [Axis]: Cdata Software, Inc. (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Cdata Software, Inc. (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,340   2,340      
Investment, Identifier [Axis]: Cdata Software, Inc. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Cdata Software, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[23] 46,065     46,065      
Investment, Identifier [Axis]: Cdata Software, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Cdata Software, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 2,346     2,346      
Investment, Identifier [Axis]: Cdata Software, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,509   3,509      
Fair value at the ending [4] $ 3,509     $ 3,509      
Number of shares held 6,029     6,029   6,029  
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   10,189   $ 10,189      
Fair value at the ending [4] $ 18,165     $ 18,165      
Number of shares held 6,029     6,029   6,029  
Investment, Identifier [Axis]: Central Moloney, LLC, Equity Securities, Class G units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   66   $ 66      
Fair value at the ending [4] $ 149     $ 149      
Number of shares held 63     63   63  
Investment, Identifier [Axis]: Chess.com, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   100   $ 100      
Fair value at the ending [4],[16] $ 130     $ 130      
Number of shares held 5 [16]     5 [16]   5 [15]  
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   12,611   $ 12,611      
Fair value at the ending [4],[20],[21] $ 12,578     12,578      
Investment, Identifier [Axis]: Chess.com, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Cleanova US Holdings LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[38] 13,786     13,786      
Investment, Identifier [Axis]: ClearlyRated Capital, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       1,407      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       1      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       27      
Fair value at the ending 1,435     1,435      
Investment, Identifier [Axis]: ClearlyRated Capital, LLC (Class A units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   5,500   5,500 5,500    
Transfers in (out)       0 0    
Purchases (cost)       1,593 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 7,093   $ 5,500 $ 7,093 $ 5,500    
Number of units held 7,093,224   5,500,000 7,093,224 5,500,000    
Investment, Identifier [Axis]: ClearlyRated Capital, LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   $ 0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 0     0      
Investment, Identifier [Axis]: ClearlyRated Capital, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   5,500   5,500      
Fair value at the ending [4],[16] $ 7,093     $ 7,093      
Number of shares held 7,093,224 [16]     7,093,224 [16]   5,500,000 [15]  
Investment, Identifier [Axis]: ClearlyRated Capital, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 1,435     $ 1,435      
Investment, Identifier [Axis]: ClearlyRated Capital, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Cloud for Good, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 4,950     $ 4,950      
Number of shares held 5,000,000     5,000,000      
Investment, Identifier [Axis]: Cloud for Good, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] $ 17,456     $ 17,456      
Investment, Identifier [Axis]: Cloud for Good, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Cloud for Good, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,302   2,302      
Fair value at the ending [4],[9],[13] 3,474     3,474      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   4,977   4,977      
Fair value at the ending [4],[7] 4,940     4,940      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[19]   4,977   4,977      
Fair value at the ending [4],[7],[21] 4,940     4,940      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[25]   14,531   14,531      
Fair value at the ending [4],[7],[20],[26] 14,449     14,449      
Investment, Identifier [Axis]: Clydesdale Holdings, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   20,666   20,666      
Fair value at the ending [4],[23] 20,552     20,552      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 889     889      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[20] 13,475     13,475      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 2,474     2,474      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 6,712     6,712      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 2,899     2,899      
Investment, Identifier [Axis]: Cohere Beauty, Phoenix LLC (fka Arizona Natural Resources, LLC), Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,754     2,754      
Investment, Identifier [Axis]: Commscope, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[14]   3,053   3,053      
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   1,729   1,729      
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19],[22]   36,306   36,306      
Investment, Identifier [Axis]: Cosmos Bidco, Inc, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   6,807   6,807      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Equity Securities, Class A Membership Interest              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,780   2,780      
Fair value at the ending [4] $ 2,730     $ 2,730      
Number of shares held 2,250,000     2,250,000   2,250,000  
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] $ 0     $ 0      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 4,110     4,110      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[21],[23] 35,964     35,964      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 6,743     6,743      
Investment, Identifier [Axis]: Cosmos Bidco, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 18,808     18,808      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   36,216   36,216      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,168   2,168      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 4,070     4,070      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 3,484     3,484      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[21] 36,108     36,108      
Investment, Identifier [Axis]: Cpex Purchaser, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 6,467     6,467      
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   125   125      
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   1,022   1,022      
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   15   15      
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   320   320      
Investment, Identifier [Axis]: Crownpeak Technology, Inc, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   852   852      
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 125     125      
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 1,066     1,066      
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 16     16      
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 335     335      
Investment, Identifier [Axis]: Crownpeak Technology, Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 888     888      
Investment, Identifier [Axis]: DRI Holding Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,939     2,939      
Investment, Identifier [Axis]: DS Parent, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 17,857     17,857      
Investment, Identifier [Axis]: DS Parent, Inc.., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   18,947   18,947      
Investment, Identifier [Axis]: DataOnline Corp, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[19],[22],[25]   34,762   34,762      
Investment, Identifier [Axis]: DataOnline Corp, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   555   555      
Investment, Identifier [Axis]: DataOnline Corp., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 2,591     2,591      
Investment, Identifier [Axis]: DataOnline Corp., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 8,630     8,630      
Investment, Identifier [Axis]: DataOnline Corp., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[20],[21],[23],[26] 34,579     34,579      
Investment, Identifier [Axis]: Demakes Borrower, LLC , Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   4,865   4,865      
Investment, Identifier [Axis]: Demakes Borrower, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] 4,841     4,841      
Investment, Identifier [Axis]: Demakes Borrower, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   134   134      
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[25]   6,531   6,531      
Investment, Identifier [Axis]: Destination Media, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,506   1,506      
Investment, Identifier [Axis]: Destination Media, Inc. , Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 4,790     $ 4,790      
Number of shares held 4,790     4,790      
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   $ 0      
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[19]   13,206   13,206      
Investment, Identifier [Axis]: Dorado Acquisition, Inc, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   10,938   10,938      
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities, Class A-1 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   390   390      
Fair value at the ending [4] $ 453     $ 453      
Number of shares held 531,783     531,783   531,783  
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Equity Securities, Class A-2 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 531,783     531,783   531,783  
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] $ 0     $ 0      
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[21] 12,945     12,945      
Investment, Identifier [Axis]: Dorado Acquisition, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 10,732     10,732      
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Delayed Draw) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Douglas Holdings, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Douglas Holdings, Inc., Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   597   597      
Fair value at the ending [4] $ 614     $ 614      
Number of shares held 573,847     573,847   573,847  
Investment, Identifier [Axis]: Douglas Holdings, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   24,912   $ 24,912      
Fair value at the ending [4],[10] $ 24,943     24,943      
Investment, Identifier [Axis]: Douglas Holdings, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 651     651      
Investment, Identifier [Axis]: Douglas Holdings, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   481   481      
Fair value at the ending [4],[9],[13] 1,176     1,176      
Investment, Identifier [Axis]: Douglas Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Equity Securities, Class A-1 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   783   783      
Fair value at the ending [4] $ 828     $ 828      
Number of shares held 652,174     652,174   652,174  
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   15,000   $ 15,000      
Fair value at the ending [4],[21] $ 15,000     15,000      
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   3,974   3,974      
Fair value at the ending [4],[9],[13] 3,974     3,974      
Investment, Identifier [Axis]: Drawbridge Partners, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Dusk Acquisition II Corporation, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[25]   27,651   27,651      
Fair value at the ending [4],[26] 27,624     27,624      
Investment, Identifier [Axis]: Dusk Acquisition II Corporation, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   37,177   37,177      
Fair value at the ending [4] 37,141     37,141      
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 909     909      
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   20,400   20,400      
Fair value at the ending [4],[7],[10] 20,200     20,200      
Investment, Identifier [Axis]: E-Discovery Acquireco, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   3,273   3,273      
Fair value at the ending [4],[7] 3,281     3,281      
Investment, Identifier [Axis]: EOS Finco S.A.R.L, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[17],[39]   4,820   4,820      
Investment, Identifier [Axis]: EOS Finco S.A.R.L., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[20],[29],[40] 1,983     1,983      
Investment, Identifier [Axis]: Edustaff, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   1,025   1,025      
Fair value at the ending [4],[16] $ 1,066     $ 1,066      
Number of shares held 591 [16]     591 [16]   591 [15]  
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   11,773   $ 11,773      
Fair value at the ending [4],[7],[10] $ 11,773     11,773      
Investment, Identifier [Axis]: Edustaff, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Einstein Parent, INC., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24],[26] 36,133     36,133      
Investment, Identifier [Axis]: Einstein Parent, INC., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   656   656      
Investment, Identifier [Axis]: Epika Fleet Services, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   9,775   9,775      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,129   1,129      
Number of shares held           44,348  
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,744   2,744      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,128   2,128      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   16,943   16,943      
Fair value at the ending [4],[23],[24] 49,307     49,307      
Investment, Identifier [Axis]: Epika Fleet Services, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 13,135     13,135      
Investment, Identifier [Axis]: Equine Network, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   123   123      
Fair value at the ending [4],[16] $ 130     $ 130      
Number of shares held 92 [16]     92 [16]   92 [15]  
Investment, Identifier [Axis]: EverService Midco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[22],[25]   54,725   $ 54,725      
Fair value at the ending [4],[7],[20],[23],[26] $ 38,943     38,943      
Investment, Identifier [Axis]: EverService Midco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities, Warrant to purchase the equity 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   0   0      
Fair value at the ending [4],[8] 0     0      
Investment, Identifier [Axis]: Evolve Biologics Inc., Equity Securities, Warrant to purchase the equity 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6]   111   111      
Fair value at the ending [4],[7],[8] 110     110      
Investment, Identifier [Axis]: Excelligence Learning Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   12,109   12,109      
Fair value at the ending [4],[7],[20] 11,882     11,882      
Investment, Identifier [Axis]: Excelligence Learning Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   205   205      
Fair value at the ending [4],[9] 1,182     1,182      
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[19],[25]   11,973   11,973      
Fair value at the ending [4],[10],[20],[21],[26] 9,035     9,035      
Investment, Identifier [Axis]: Expedited Travel, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   0      
Fair value at the ending [4],[16] $ 2     $ 2      
Number of shares held 34,944 [16]     34,944 [16]   34,944 [15]  
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   15   $ 15      
Fair value at the ending [4],[16] $ 8     $ 8      
Number of shares held 35 [16]     35 [16]   35 [15]  
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class A-1 preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 50     $ 50      
Number of shares held [16] 41     41      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   $ 0      
Fair value at the ending [4],[16] $ 11     $ 11      
Number of shares held 164,381 [16]     164,381 [16]   164,381 [15]  
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Equity Securities, Class B preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   0   $ 0      
Fair value at the ending [4],[16] $ 13     $ 13      
Number of shares held 164 [16]     164 [16]   164 [15]  
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 18,753     $ 18,753      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   294   294      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   9,948   9,948      
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,108   2,108      
Investment, Identifier [Axis]: FH BMX Buyer, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   9,145   9,145      
Investment, Identifier [Axis]: FH BMX Buyer, Inc, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: FH BMX Buyer, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 9,068     9,068      
Investment, Identifier [Axis]: FH BMX Buyer, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: FH BMX Buyer, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 4,084     4,084      
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   6,702   6,702      
Fair value at the ending [4],[23] 6,685     6,685      
Investment, Identifier [Axis]: Fiasco Enterprises, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   8,084   8,084      
Fair value at the ending [4],[7],[23] 8,100     8,100      
Investment, Identifier [Axis]: First Brands Group, LLC, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[22]   13,137   13,137      
Fair value at the ending [4],[20],[23] 12,992     12,992      
Investment, Identifier [Axis]: First Brands Group, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23],[24] 47,081     47,081      
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   841   841      
Fair value at the ending [4],[16] $ 906     $ 906      
Number of shares held 906 [16]     906 [16]   906 [15]  
Investment, Identifier [Axis]: Forest Buyer, LLC, Equity Securities, Class B units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   849   $ 849      
Fair value at the ending [4],[16] $ 1,120     $ 1,120      
Number of shares held 906 [16]     906 [16]   906 [15]  
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   $ 0      
Fair value at the ending [4],[9] $ 0     0      
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   21,456   21,456      
Fair value at the ending [4],[10],[24] 21,349     21,349      
Investment, Identifier [Axis]: Forest Buyer, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[19],[22]   14,572   14,572      
Fair value at the ending [4],[7],[21],[23] 14,499     14,499      
Investment, Identifier [Axis]: Fortra, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   13,109   13,109      
Fair value at the ending [4],[23] 14,089     14,089      
Investment, Identifier [Axis]: Freedom U.S. Acquisition Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[25]   51,439   51,439      
Fair value at the ending [4],[10],[24],[26] 51,300     51,300      
Investment, Identifier [Axis]: Freedom U.S. Acquisition Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   692   692      
Fair value at the ending [4],[9] 721     721      
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   5,402   5,402      
Fair value at the ending [4] 5,615     5,615      
Investment, Identifier [Axis]: Fueled Digital Media, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   476   476      
Fair value at the ending [4] 495     495      
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   7,270   7,270      
Fair value at the ending [4],[9],[13] 7,251     7,251      
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   12,837   12,837      
Fair value at the ending [4],[21] 12,804     12,804      
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   3,566   3,566      
Fair value at the ending [4],[7] 3,557     3,557      
Investment, Identifier [Axis]: GC Champion Acquisition LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   10,698   10,698      
Fair value at the ending [4],[7] 10,670     10,670      
Investment, Identifier [Axis]: Gainsight, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 26,999     26,999      
Investment, Identifier [Axis]: Gargoyle Enterprises, Inc., Unitranche Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[41]   997   997      
Fair value at the ending [4],[42] 997     997      
Investment, Identifier [Axis]: Gas Media Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24],[26] 56,145     56,145      
Investment, Identifier [Axis]: Gas Media Holdings, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Gas Media Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Gibson Brands, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,037   3,037      
Investment, Identifier [Axis]: Gibson Brands, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 13,840     13,840      
Investment, Identifier [Axis]: Golden State Buyer, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   9,611   9,611      
Investment, Identifier [Axis]: Golden State Buyer, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] 9,486     9,486      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[25]   11,850   11,850      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   6,713   6,713      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 12,090     12,090      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 12,273     12,273      
Investment, Identifier [Axis]: Guardian Restoration Partners Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 440     440      
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   220   220      
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   3,860   3,860      
Investment, Identifier [Axis]: HS4 Acquisitionco, Inc, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   4,194   4,194      
Investment, Identifier [Axis]: Harlem Acquisition, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 1,474     $ 1,474      
Number of shares held 1,523,811     1,523,811      
Investment, Identifier [Axis]: Harlem Acquisition, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,524   $ 1,524      
Number of shares held           1,523,811  
Investment, Identifier [Axis]: Harlem Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   31,440   31,440      
Fair value at the ending [4],[23] $ 32,373     32,373      
Investment, Identifier [Axis]: Harlem Acquisition, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 2,040     2,040      
Investment, Identifier [Axis]: Harlem Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   479   479      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Hart Halsey, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,425     7,425      
Investment, Identifier [Axis]: Hart Halsey, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Hart Halsey, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Hart Halsey, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,485     1,485      
Investment, Identifier [Axis]: Helping Hands Childrens Services Management, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   11,356   11,356      
Fair value at the ending [4] 11,428     11,428      
Investment, Identifier [Axis]: Helping Hands Childrens Services Management, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Helping Hands Childrens Services Management, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Hostaway Midco Oy, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[8],[35] 25,000     25,000      
Investment, Identifier [Axis]: Hostaway Midco Oy, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13],[35] 0     0      
Investment, Identifier [Axis]: Hostaway Midco Oy, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[35] 0     0      
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[25]   29,775   29,775      
Fair value at the ending [4],[7],[20],[26] 29,625     29,625      
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Huckabee Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securities, Class X units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 34     $ 34      
Number of shares held [16] 34,043,000     34,043,000      
Investment, Identifier [Axis]: IDIG Parent, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15],[43]   188   $ 188      
Fair value at the ending [4],[16] $ 179     $ 179      
Number of shares held 192,908 [16]     192,908 [16]   192,908 [15],[43]  
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,229   $ 1,229      
Fair value at the ending [4] $ 564     $ 564      
Number of shares held 1,566     1,566   1,566  
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 1,566     1,566   1,566  
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   $ 0      
Fair value at the ending [4],[9],[13] $ 0     0      
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   2,825   2,825      
Fair value at the ending [4],[9] 4,413     4,413      
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   23,389   23,389      
Fair value at the ending [4],[7],[20] 22,867     22,867      
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   6,567   6,567      
Fair value at the ending [4],[7] 6,487     6,487      
Investment, Identifier [Axis]: IF & P Holdings Company, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,106   1,106      
Fair value at the ending [4] 1,070     1,070      
Investment, Identifier [Axis]: INH Buyer, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   2,524   2,524      
Investment, Identifier [Axis]: INH Buyer, Inc., Equity Securities, A-1 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 2,713,147     2,713,147   2,713,147  
Investment, Identifier [Axis]: INH Buyer, Inc., Equity Securities, Preferred stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 3     3   3  
Investment, Identifier [Axis]: INH Buyer, Inc., Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] $ 1,152     $ 1,152      
Investment, Identifier [Axis]: INH Buyer, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] 32     32      
Investment, Identifier [Axis]: INH Buyer, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13],[29] 0     0      
Investment, Identifier [Axis]: Incompass, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,159   2,159      
Investment, Identifier [Axis]: Incompass, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,139     2,139      
Investment, Identifier [Axis]: Incompass, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[25]   24,580   24,580      
Fair value at the ending [4],[7],[20],[26] 24,349     24,349      
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   10,773   10,773      
Investment, Identifier [Axis]: Independence Buyer, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   574   574      
Investment, Identifier [Axis]: Independence Buyer, Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   52   52      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 169     169   169  
Investment, Identifier [Axis]: Independence Buyer, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20],[21] $ 9,725     $ 9,725      
Investment, Identifier [Axis]: Independence Buyer, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 163     163      
Investment, Identifier [Axis]: Innovative Artists Entertainment, LLC, Equity Securities, Equity commitment              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16],[44] 2,474     2,474      
Amount of total commitment [16],[44]       2,445      
Total equity investment [16],[44] 3,536     3,536      
Investment, Identifier [Axis]: Innovative Artists Entertainment, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 22,170     22,170      
Investment, Identifier [Axis]: Innovative Artists Entertainment, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: InsideRE, LLC, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   412   412      
Fair value at the ending [4],[16] $ 310     $ 310      
Number of shares held 284,853 [16]     284,853 [16]   284,853 [15]  
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] $ 384     $ 384      
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 64     64      
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   7,278   7,278      
Fair value at the ending [4],[20],[21] 7,240     7,240      
Investment, Identifier [Axis]: InsideRE, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   2,828   2,828      
Fair value at the ending [4],[10] 2,813     2,813      
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[25]   14,828   14,828      
Fair value at the ending [4],[7],[20],[26] 14,834     14,834      
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   7,161   7,161      
Fair value at the ending [4],[23] 7,165     7,165      
Investment, Identifier [Axis]: Interstate BidCo, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   8,263   8,263      
Fair value at the ending [4] 8,267     8,267      
Investment, Identifier [Axis]: Inversiones DP6 (BVI) Numero Dos, Ltd., Unitranche Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[45]   27,468   27,468      
Investment, Identifier [Axis]: Ivanti Software, Inc., Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[14]   15,365   15,365      
Investment, Identifier [Axis]: Ivanti Software, Inc., Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 3,686     3,686      
Investment, Identifier [Axis]: Ivanti Software, Inc., Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[46] 2,531     2,531      
Investment, Identifier [Axis]: Ivanti Software, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,539     2,539      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[34]   815   815      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12],[34]   0   0      
Fair value at the ending [4],[8],[9],[13],[47] 0     0      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[47] 1,522     1,522      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   14,120   14,120      
Fair value at the ending [4],[8],[23],[47] 14,049     14,049      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   6,767   6,767      
Fair value at the ending [4],[8],[23],[47] 6,675     6,675      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   3,645   3,645      
Fair value at the ending [4],[8],[23],[47] 3,595     3,595      
Investment, Identifier [Axis]: Ivex Holdco Inc. and Induspac Holdco Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   1,487   1,487      
Fair value at the ending [4],[8],[23],[47] 1,480     1,480      
Investment, Identifier [Axis]: Izzio Artisan Bakery, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[22]   14,464   14,464      
Fair value at the ending [4],[10],[23] 14,463     14,463      
Investment, Identifier [Axis]: Izzio Artisan Bakery, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 7,470     7,470      
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Equity Securities, Commitment to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15],[48]   443   443      
Fair value at the ending [4],[8],[16],[49] 619     619      
Investment, Identifier [Axis]: J2 BWA Funding III, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   2,572   2,572      
Fair value at the ending [4],[8],[9],[13] 3,238     3,238      
Investment, Identifier [Axis]: J2 BWA Funding LLC, Equity Securities, Profit sharing              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   52   52      
Fair value at the ending [4],[8],[16] 54     54      
Investment, Identifier [Axis]: J2 BWA Funding LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11]   1,746   1,746      
Fair value at the ending [4],[8] 1,746     1,746      
Investment, Identifier [Axis]: JDX Studio, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   800   800      
Fair value at the ending [4],[16] $ 800     $ 800      
Number of shares held 799,232 [16]     799,232 [16]   799,232 [15]  
Investment, Identifier [Axis]: JDX Studio, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   9,825   $ 9,825      
Fair value at the ending [4],[23] $ 9,839     9,839      
Investment, Identifier [Axis]: JDX Studio, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: JDX Studio, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   314   314      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Jesse Studio Mezz, LLC, Junior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   34,404   34,404      
Fair value at the ending [4],[8],[9],[13] 36,379     36,379      
Investment, Identifier [Axis]: Jobnimbus Holdings, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   790   790      
Fair value at the ending [4] $ 841     $ 841      
Number of shares held 214,092     214,092   214,092  
Investment, Identifier [Axis]: Jobnimbus Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[22]   31,520   $ 31,520      
Fair value at the ending [4],[10],[23],[24] $ 32,000     32,000      
Investment, Identifier [Axis]: Jobnimbus Holdings, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Jobnimbus Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 1,566,667     1,566,667      
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   754   $ 754      
Number of shares held           1,566,667  
Investment, Identifier [Axis]: Jumpstart Holdco, Inc., Unitranche Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   21,467   21,467      
Fair value at the ending [4],[7] $ 16,642     16,642      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Equity Securities, Equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   229   229      
Fair value at the ending [4] 263     263      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,074     1,074      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   4,074   4,074      
Fair value at the ending [4] 4,154     4,154      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   9,502   9,502      
Fair value at the ending [4] 9,687     9,687      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 1,931     1,931      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   895   895      
Investment, Identifier [Axis]: KL Moon Acquisition, LLC., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,895   1,895      
Investment, Identifier [Axis]: KT Naples UB LLC, Junior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   9,629   9,629      
Fair value at the ending [4],[8],[9],[13] 13,775     13,775      
Investment, Identifier [Axis]: Keel Platform, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   7,856   7,856      
Investment, Identifier [Axis]: Keel Platform, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   952   952      
Fair value at the ending [4] 1,196     1,196      
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   2,924   2,924      
Fair value at the ending [4],[7] 2,924     2,924      
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   938   938      
Fair value at the ending [4],[20] 938     938      
Investment, Identifier [Axis]: Kingsley Gate Partners, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,357   1,357      
Fair value at the ending [4] 1,357     1,357      
Investment, Identifier [Axis]: LVF Holdings, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   225   225      
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   3,403   3,403      
Investment, Identifier [Axis]: LVF Holdings, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   3,257   3,257      
Investment, Identifier [Axis]: Lessen LLC, Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,407   1,407      
Fair value at the ending [4] $ 1,305     $ 1,305      
Number of shares held 128,737     128,737   128,737  
Investment, Identifier [Axis]: Lessen LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   8,487   $ 8,487      
Fair value at the ending [4] $ 8,728     8,728      
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities (Class A shares)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 256     $ 256      
Number of shares held [16] 158,730     158,730      
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Equity Securities, Class A shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   174   $ 174      
Number of shares held [15]           158,730  
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   9,642   9,642      
Fair value at the ending [4],[20],[21] $ 9,650     9,650      
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 397     397      
Investment, Identifier [Axis]: Lifted Trucks Holdings, LLC, Senior Secured Loans, (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   316   316      
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   2,829   2,829      
Fair value at the ending [4],[16] $ 2,889     $ 2,889      
Number of shares held 314,621 [16]     314,621 [16]   314,621 [15]  
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   $ 0      
Fair value at the ending [4],[9] $ 1,977     1,977      
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   4,946   4,946      
Fair value at the ending [4] 2,919     2,919      
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   528   528      
Fair value at the ending [4] 4,914     4,914      
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[22],[25]   26,871   26,871      
Fair value at the ending [4] 524     524      
Investment, Identifier [Axis]: Light Wave Dental Management, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[20],[23],[26] 26,694     26,694      
Investment, Identifier [Axis]: Long Grove Pharmaceuticals, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 14,157     14,157      
Investment, Identifier [Axis]: Long Grove Pharmaceuticals, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[25]   14,887   14,887      
Fair value at the ending [4],[20],[26] 14,813     14,813      
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   6,211   6,211      
Fair value at the ending [4],[9],[13] 11,629     11,629      
Investment, Identifier [Axis]: MB Purchaser, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: MC Aviation Limited, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 6,990     $ 6,990      
Number of shares held 6,990,330     6,990,330      
Investment, Identifier [Axis]: MC Voyager SPV II LLC (Equity Commitment)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   $ 0      
Transfers in (out)       0      
Purchases (cost)       13,306      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 13,306     13,306      
Investment, Identifier [Axis]: MC Voyager SPV II LLC (Equity commitment)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Amount of total commitment       13,306      
Total equity investment 45,000     45,000      
Investment, Identifier [Axis]: MC Voyager SPV II LLC, Equity Securities, Equity commitment              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[50] 13,306     13,306      
Amount of total commitment [8],[50]       13,306      
Total equity investment [8],[50] 45,000     45,000      
Investment, Identifier [Axis]: MEI Buyer LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 4,439     $ 4,439      
Number of shares held 2,275     2,275      
Investment, Identifier [Axis]: MEI Buyer LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,413   $ 3,413      
Number of shares held           2,275  
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] $ 0     0      
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   478   478      
Fair value at the ending [4],[9] 716     716      
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[22]   25,794   25,794      
Fair value at the ending [4],[20],[23] 25,412     25,412      
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22],[25]   14,482   14,482      
Fair value at the ending [4],[23],[26] 14,281     14,281      
Investment, Identifier [Axis]: MEI Buyer LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   4,135   4,135      
Fair value at the ending [4] 4,064     4,064      
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[16] $ 0     $ 0      
Number of shares held [8],[16] 1,822     1,822      
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[16] $ 0     $ 0      
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   0   0      
Number of shares held [6],[15]           1,822  
Investment, Identifier [Axis]: MV Receivables II, LLC, Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   0   0      
Investment, Identifier [Axis]: MV Receivables II, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[31]   6,042   6,042      
Fair value at the ending [4],[8],[29] 4,949     4,949      
Investment, Identifier [Axis]: MYOB US Borrower, LLC (fka ETA Australia Holdings III Pty Ltd and MYOB US Borrower LLC), Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[51],[52] 25,798     25,798      
Investment, Identifier [Axis]: Madison Logic Holdings, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   13,425   13,425      
Fair value at the ending [4],[7] 13,320     13,320      
Investment, Identifier [Axis]: Madison Logic Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Maltese Diplomat Owner 100 LLC, Junior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13] 46,520     46,520      
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 540     540      
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22],[25]   21,773   21,773      
Fair value at the ending [4],[23],[26] 21,297     21,297      
Investment, Identifier [Axis]: Mammoth Holdings, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   5,472   5,472      
Fair value at the ending [4] 5,353     5,353      
Investment, Identifier [Axis]: Medallia, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   12,117   12,117      
Investment, Identifier [Axis]: Medallia, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 11,155     11,155      
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   462   462      
Fair value at the ending [4],[9] 462     462      
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[25]   44,660   44,660      
Fair value at the ending [4],[7],[20],[26] 44,367     44,367      
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,611   1,611      
Fair value at the ending [4],[24] 1,601     1,601      
Investment, Identifier [Axis]: Milrose Consultants, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,585   3,585      
Fair value at the ending [4],[24] 3,561     3,561      
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   1,867   1,867      
Investment, Identifier [Axis]: Mindbody, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   2,270   2,270      
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 689     689      
Investment, Identifier [Axis]: Mindbody, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 22,609     22,609      
Investment, Identifier [Axis]: Mission Critical Group, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 6,934     6,934      
Investment, Identifier [Axis]: Mission Critical Group, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Mission Critical Group, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   6,860   6,860      
Investment, Identifier [Axis]: Moonraker Acquisitionco LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   280   280      
Investment, Identifier [Axis]: Mooring Primary, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 2,574     $ 2,574      
Number of shares held 2,576     2,576      
Investment, Identifier [Axis]: Mooring Primary, LLC, Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 3     $ 3      
Number of shares held 2,574     2,574      
Investment, Identifier [Axis]: Mooring Primary, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] $ 14,972     $ 14,972      
Investment, Identifier [Axis]: Mooring Primary, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Mooring Primary, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 416     416      
Investment, Identifier [Axis]: NBPT Acquisition LLC, Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[53] $ 4,522     $ 4,522      
Number of shares held [53] 4,421     4,421      
Investment, Identifier [Axis]: NBPT Acquisition LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] $ 20,991     $ 20,991      
Investment, Identifier [Axis]: NBPT Acquisition LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: NBPT Acquisition LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18],[19]   13,245   13,245      
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   830   830      
Investment, Identifier [Axis]: NFM & J, L.P, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[10],[21] 13,138     13,138      
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 823     823      
Investment, Identifier [Axis]: NFM & J, L.P., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,187     1,187      
Investment, Identifier [Axis]: NFS Intermediate HoldCo, LLC (Series B preferred units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       53,255      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 53,255     $ 53,255      
Number of units held 53,255     53,255      
Investment, Identifier [Axis]: NFS Intermediate HoldCo, LLC, Equity Securities, Series B preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[16] $ 53,255     $ 53,255      
Number of shares held [8],[16] 53,255     53,255      
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   12,832   $ 12,832      
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   278   278      
Fair value at the ending [4] $ 137     $ 137      
Number of shares held 1,364,614     1,364,614   1,364,614  
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[20] $ 12,728     $ 12,728      
Investment, Identifier [Axis]: NQ PE Project Colosseum Midco Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Nastel Technologies, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   3,478   3,478 $ 3,500    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       7 5    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       6 (5)    
Fair value at the ending 3,491   $ 3,500 3,491 3,500    
Investment, Identifier [Axis]: Nastel Technologies, LLC (Class A units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   4,611   4,611 4,226    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       613 307    
Fair value at the ending $ 5,224   $ 4,533 $ 5,224 $ 4,533    
Number of units held 3,408   3,408 3,408 3,408    
Investment, Identifier [Axis]: Nastel Technologies, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   $ 0 $ 0    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 0   $ 0 0 0    
Investment, Identifier [Axis]: Nastel Technologies, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   4,611   4,611      
Fair value at the ending [4],[16] $ 5,224     $ 5,224      
Number of shares held 3,408 [16]     3,408 [16]   3,408 [15]  
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   3,478   $ 3,478      
Fair value at the ending [4],[21] $ 3,491     3,491      
Investment, Identifier [Axis]: Nastel Technologies, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Nasuni Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[22]   15,062   15,062      
Fair value at the ending [4],[10],[23] 15,150     15,150      
Investment, Identifier [Axis]: Nasuni Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Nasuni Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   2,805   2,805      
Fair value at the ending [4],[16] $ 2,813     $ 2,813      
Number of shares held 326,667 [16]     326,667 [16]   326,667 [15]  
Investment, Identifier [Axis]: NationsBenefits, LLC, Equity Securities, Series B units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   5,523   $ 5,523      
Fair value at the ending [4],[16] $ 5,421     $ 5,421      
Number of shares held 369,827 [16]     369,827 [16]   369,827 [15]  
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23],[24],[26] $ 64,649     $ 64,649      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 2,888     2,888      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   11,883   11,883      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   14,163   14,163      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   15,355   15,355      
Investment, Identifier [Axis]: NationsBenefits, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   6,179   6,179      
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,308     1,308      
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 24,625     24,625      
Investment, Identifier [Axis]: Nellson Nutraceutical, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,311     7,311      
Investment, Identifier [Axis]: New Engen, Inc. , Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 443     $ 443      
Number of shares held 417     417      
Investment, Identifier [Axis]: New Engen, Inc., Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1   $ 1      
Fair value at the ending [4] $ 67     $ 67      
Number of shares held 5,067     5,067   5,067  
Investment, Identifier [Axis]: New Engen, Inc., Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   532   $ 532      
Number of shares held           417  
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   9,203   9,203      
Fair value at the ending [4],[20],[21] $ 9,203     9,203      
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   7,772   7,772      
Fair value at the ending [4],[20],[21] 7,772     7,772      
Investment, Identifier [Axis]: New Engen, Inc., Unitranche Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   2,393   2,393      
Fair value at the ending [4],[10] 2,370     2,370      
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Equity Securities, Class A-2 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   5,447   5,447      
Fair value at the ending [4],[16] $ 5,200     $ 5,200      
Number of shares held 5,364,700 [16]     5,364,700 [16]   5,364,700 [15]  
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   7,489   $ 7,489      
Fair value at the ending [4] $ 7,440     7,440      
Investment, Identifier [Axis]: Northeast Contracting Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 681     681      
Investment, Identifier [Axis]: OPOC Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   12,805   12,805      
Fair value at the ending [4],[23] 12,981     12,981      
Investment, Identifier [Axis]: OPOC Acquisition, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: OPOC Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   119   119      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: OWL Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 17,278     17,278      
Investment, Identifier [Axis]: OWL Acquisition, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: OWL Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 110     110      
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6],[54],[55]   29,528   29,528      
Investment, Identifier [Axis]: Oceana Australian Fixed Income Trust, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[54],[55]   13,719   13,719      
Investment, Identifier [Axis]: Off Hours Spirits, Inc. / Hour Barrel, LLC, Unitranche Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[56]   203   203      
Investment, Identifier [Axis]: Onit, Inc., Unitranche Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   16,800   16,800      
Investment, Identifier [Axis]: Onix Networking Corp., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,802   1,802      
Fair value at the ending [4] $ 2,061     $ 2,061      
Number of shares held 2,000,000     2,000,000   2,000,000  
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   14,850   $ 14,850      
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] $ 0     0      
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 4,489     4,489      
Investment, Identifier [Axis]: Onix Networking Corp., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[20] 14,775     14,775      
Investment, Identifier [Axis]: Optomi, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   529   529      
Fair value at the ending [4],[16] $ 600     $ 600      
Number of shares held 278 [16]     278 [16]   278 [15]  
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   850   $ 850      
Fair value at the ending [4],[9] $ 1,063     1,063      
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   5,590   5,590      
Fair value at the ending [4],[7],[10] 5,541     5,541      
Investment, Identifier [Axis]: Optomi, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   13,178   13,178      
Fair value at the ending [4],[10],[21] 13,061     13,061      
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   29,053   29,053      
Investment, Identifier [Axis]: Oranje Holdco, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   14,140   14,140      
Investment, Identifier [Axis]: Oranje Holdco, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Oranje Holdco, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 29,090     29,090      
Investment, Identifier [Axis]: Oranje Holdco, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[10] 14,140     14,140      
Investment, Identifier [Axis]: PAI Middle Tier, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 17,772     17,772      
Investment, Identifier [Axis]: PAI Middle Tier, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   13,958   13,958      
Fair value at the ending [4],[7],[20] 13,972     13,972      
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   13,107   13,107      
Fair value at the ending [4],[9],[13] 18,180     18,180      
Investment, Identifier [Axis]: PC Pest Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[19],[22]   13,916   13,916      
Fair value at the ending [4],[7],[20],[21],[23] 13,922     13,922      
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   4,415   4,415      
Fair value at the ending [4],[9],[13] 4,439     4,439      
Investment, Identifier [Axis]: PNE Interco LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   786   786      
Fair value at the ending [4],[9] 1,573     1,573      
Investment, Identifier [Axis]: PRGX Global, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   49,799   49,799      
Investment, Identifier [Axis]: PRGX Global, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: PRGX Global, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23] 36,192     36,192      
Investment, Identifier [Axis]: PRGX Global, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,535     1,535      
Investment, Identifier [Axis]: Panda Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   8,402   8,402      
Fair value at the ending [4],[7] 8,564     8,564      
Investment, Identifier [Axis]: Park County Holdings, LLC, Unitranche Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   45,000   45,000      
Fair value at the ending [4] 44,967     44,967      
Investment, Identifier [Axis]: Parkhub, Inc., Equity Securities, Series A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,502   1,502      
Fair value at the ending [4] $ 1,675     $ 1,675      
Number of shares held 1,178,344     1,178,344   1,049,936  
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,910   $ 2,910      
Fair value at the ending [4],[9],[13] $ 2,895     2,895      
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 507     507      
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans (Delayed Draw) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12],[57]   0   0      
Fair value at the ending [4],[8],[9],[13],[58] 1,060     1,060      
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 2,020     2,020      
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   16,451   16,451      
Fair value at the ending [4],[7] 16,369     16,369      
Investment, Identifier [Axis]: Parkhub, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[57]   33,962   33,962      
Fair value at the ending [4],[8],[58] 37,076     37,076      
Investment, Identifier [Axis]: Patagonia Holdco LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6]   13,130   13,130      
Fair value at the ending [4],[7],[8] 11,944     11,944      
Investment, Identifier [Axis]: Polychem Acquisition, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   1,642   1,642      
Fair value at the ending [4],[7] 1,669     1,669      
Investment, Identifier [Axis]: Power Stop, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   5,244   5,244      
Fair value at the ending [4],[23] 4,142     4,142      
Investment, Identifier [Axis]: PrecisionX Group, LLC , Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,532   2,532      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 3,117     3,117      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 597     597      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   3,128   3,128      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   596   596      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[22],[25]   15,682   15,682      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   8,044   8,044      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   5,959   5,959      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans (fka Specialty Manufacturing Buyer, LLC) 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   5,959   5,959      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 2,523     2,523      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20],[23],[26] 15,622     15,622      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,994     7,994      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 5,921     5,921      
Investment, Identifier [Axis]: PrecisionX Group, LLC, Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 5,936     5,936      
Investment, Identifier [Axis]: Premier Roofing L.L.C, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   3,034   3,034      
Investment, Identifier [Axis]: Premier Roofing L.L.C, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,069   1,069      
Investment, Identifier [Axis]: Premier Roofing L.L.C., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] 2,908     2,908      
Investment, Identifier [Axis]: Premier Roofing L.L.C., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,031     1,031      
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   11,816   11,816      
Fair value at the ending [4] 11,756     11,756      
Investment, Identifier [Axis]: Project Accelerate Parent, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   6,372   6,372      
Fair value at the ending [4],[29] 4,994     4,994      
Investment, Identifier [Axis]: Prototek LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[31]   0   0      
Fair value at the ending [4],[9],[29] 0     0      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   472   472      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[25]   909   909      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   4,543   4,543      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   4,361   4,361      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   909   909      
Investment, Identifier [Axis]: QF Holdings, Inc, Senior Secured Loans. 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   909   909      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 73     73      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 908     908      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[26] 905     905      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 4,527     4,527      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 4,346     4,346      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 905     905      
Investment, Identifier [Axis]: QF Holdings, Inc., Senior Secured Loans 6              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 905     905      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant to purchase the equity 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 41     41      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant to purchase the equity 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   306   306      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant to purchase the equity 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   214   214      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Equity Securities, Warrant to purchase the equity) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 51     51      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 13,075     13,075      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   15,000   15,000      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Quest Resource Management Group, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: RC & CY New Orleans Sole Member, LLC, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 29,942     29,942      
Investment, Identifier [Axis]: RS Acquisition, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   288   288      
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held 838,077 [16]     838,077 [16]   838,077 [15]  
Investment, Identifier [Axis]: RS Acquisition, LLC, Equity Securities, Series A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   47   $ 47      
Fair value at the ending [4],[16] $ 0     $ 0      
Number of shares held 46,462 [16]     46,462 [16]   46,462 [15]  
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   838   $ 838      
Fair value at the ending [4],[9] $ 832     832      
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   10,125   10,125      
Fair value at the ending [4],[21] 10,002     10,002      
Investment, Identifier [Axis]: RS Acquisition, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   9,356   9,356      
Fair value at the ending [4] 9,243     9,243      
Investment, Identifier [Axis]: Radiate Holdco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[14]   10,965   10,965      
Fair value at the ending [4] 9,396     9,396      
Investment, Identifier [Axis]: Radiology Partners, Inc, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   17,166   17,166      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   7,481   7,481      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc., Equity Securities, Series A-2 preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,176   2,176      
Fair value at the ending [4] $ 3,628     $ 3,628      
Number of shares held 3,295     3,295   2,206  
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] $ 0     $ 0      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,474     7,474      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,136     7,136      
Investment, Identifier [Axis]: Rampart Exterior Services Buyer, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 5,174     5,174      
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18],[19]   16,705   16,705      
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   1,679   1,679      
Investment, Identifier [Axis]: Randys Holdings, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   772   772      
Investment, Identifier [Axis]: Randys Holdings, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[10],[21] 16,661     16,661      
Investment, Identifier [Axis]: Randys Holdings, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 3,494     3,494      
Investment, Identifier [Axis]: Randys Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 1,397     1,397      
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18]   11,790   11,790      
Investment, Identifier [Axis]: Really Great Reading Company, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Equity Securities, Series A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   329   329      
Fair value at the ending [4] $ 208     $ 208      
Number of shares held 369     369   369  
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[20] $ 11,730     $ 11,730      
Investment, Identifier [Axis]: Really Great Reading Company, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Recorded Future, Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[59]   93   93      
Fair value at the ending [4] $ 7     $ 7      
Number of shares held 40,243     40,243   40,243 [59]  
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   4,387   $ 4,387      
Fair value at the ending [4],[21] $ 4,270     4,270      
Investment, Identifier [Axis]: Recycled Plastics Industries, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Relevant Industrial, LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 4,877     $ 4,877      
Number of shares held 4,877,048     4,877,048      
Investment, Identifier [Axis]: Relevant Industrial, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 17,281     $ 17,281      
Investment, Identifier [Axis]: Relevant Industrial, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Relevant Industrial, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Relevant Industrial, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities, Class B common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 96     96   96  
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities, Class X common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 14     14   14  
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities, Class X preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   14   $ 14      
Fair value at the ending [4] $ 14     $ 14      
Number of shares held 14     14   14  
Investment, Identifier [Axis]: Relevate Health Group, LLC, Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   63   $ 63      
Fair value at the ending [4] $ 36     $ 36      
Number of shares held 96     96   96  
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   421   $ 421      
Fair value at the ending [4],[9] $ 368     368      
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,102   1,102      
Fair value at the ending [4] 1,104     1,104      
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   1,904   1,904      
Fair value at the ending [4],[10],[21] 1,906     1,906      
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18]   5,075   5,075      
Fair value at the ending [4],[10],[20] 5,081     5,081      
Investment, Identifier [Axis]: Relevate Health Group, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   852   852      
Fair value at the ending [4],[20] 853     853      
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC (fka Matrix Parent, Inc.), Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   735   735      
Number of shares held [5]           37,185  
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] $ 588     $ 588      
Number of shares held [7] 37,185     37,185      
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[29] $ 850     $ 850      
Investment, Identifier [Axis]: Reorganized Mobileum AcquisitionCo, LLC, Senior Secured Loans (fka Matrix Parent, Inc.)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[31]   888   888      
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   888   888      
Fair value at the ending [4],[7] $ 1,046     $ 1,046      
Number of shares held 50,029 [7]     50,029 [7]   50,029 [5]  
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   3,396   $ 3,396      
Fair value at the ending [4],[7] $ 3,211     3,211      
Investment, Identifier [Axis]: Research Now Group, Inc. and Survey Sampling International, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   559   559      
Fair value at the ending [4] 553     553      
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Equity Securities, Series A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   1,663   1,663      
Fair value at the ending [4],[8],[16] $ 2,818     $ 2,818      
Number of shares held 736,539 [8],[16]     736,539 [8],[16]   446,794 [6],[15]  
Investment, Identifier [Axis]: Residential Homes for Rent LLC, Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   777   $ 777      
Fair value at the ending [4],[8],[16] $ 943     943      
Investment, Identifier [Axis]: Resolute Investment Managers, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 17,844     17,844      
Investment, Identifier [Axis]: Respida Software Equity CI LP, Equity Securities, Series B Preferred Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   5,039   5,039      
Fair value at the ending [4],[16] $ 5,553     $ 5,553      
Number of shares held 5,346,496 [16]     5,346,496 [16]   5,000,000 [15]  
Investment, Identifier [Axis]: Rita's Franchise Company, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   14,566   $ 14,566      
Fair value at the ending [4],[23] $ 14,669     14,669      
Investment, Identifier [Axis]: Rita's Franchise Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Ro Health, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 4,016     4,016      
Investment, Identifier [Axis]: Ro Health, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Russell Investments US Institutional Holdco, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[14]   8,121   8,121      
Fair value at the ending [4],[8],[46] 16,221     16,221      
Investment, Identifier [Axis]: Russell Investments US Institutional Holdco, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[14]   0   0      
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[46] 1,606     1,606      
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   9,972   9,972      
Investment, Identifier [Axis]: S&S Holdings LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   2,885   2,885      
Investment, Identifier [Axis]: SCP Baked Goods Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 8,888     8,888      
Investment, Identifier [Axis]: SCP Baked Goods Holdings, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: SCP Baked Goods Holdings, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   209   209      
Fair value at the ending [4],[9],[13] 1,562     1,562      
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18]   9,083   9,083      
Fair value at the ending [4],[7],[10] 9,023     9,023      
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   10,201   10,201      
Fair value at the ending [4] 10,135     10,135      
Investment, Identifier [Axis]: SCP Eye Care Holdco, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   7,980   7,980      
Fair value at the ending [4] 7,928     7,928      
Investment, Identifier [Axis]: SCP Intermediate Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[17]   2,940   2,940      
Fair value at the ending [4],[8],[20] 2,925     2,925      
Investment, Identifier [Axis]: SCP Intermediate Holdings, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   0   0      
Fair value at the ending [4],[8],[9],[13] 0     0      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17],[22],[25]   21,236   21,236      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,821   2,821      
Fair value at the ending [4],[9],[13] 2,403     2,403      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Delayed Draw) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Delayed Draw) 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[20],[23],[26] 21,128     21,128      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 8,538     8,538      
Investment, Identifier [Axis]: SDG Mgmt Company, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 11,792     11,792      
Investment, Identifier [Axis]: SFR Holdco 2, LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   2,267   2,267      
Transfers in (out)       0      
Purchases (cost)       1,425      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       (5)      
Fair value at the ending 3,687     3,687      
Investment, Identifier [Axis]: SFR Holdco 2, LLC (Equity commitments)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   $ 1,510   1,510      
Transfers in (out)       0      
Purchases (cost)       950      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       101      
Fair value at the ending 2,561     $ 2,561      
Percentage of equity commitments   24.40% [6]   24.40%      
Investment, Identifier [Axis]: SFR Holdco 2, LLC, Equity Securities, Equity commitments              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 2,561     $ 2,561      
Percentage of equity commitments [8]       24.40%      
Investment, Identifier [Axis]: SFR Holdco 2, LLC, Junior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   $ 2,267   $ 2,267      
Fair value at the ending [4],[8],[9],[13],[60] 3,687     3,687      
Investment, Identifier [Axis]: SFR Holdco, LLC (Equity commitments) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   4,797   4,797 4,371    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       119 89    
Fair value at the ending 4,916   4,460 $ 4,916 $ 4,460    
Percentage of equity commitments       13.90% 13.90%    
Investment, Identifier [Axis]: SFR Holdco, LLC (Equity commitments) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   3,597   $ 3,597 $ 3,278    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       90 67    
Fair value at the ending 3,687   3,345 $ 3,687 $ 3,345    
Percentage of equity commitments       10.50% 10.50%    
Investment, Identifier [Axis]: SFR Holdco, LLC 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   5,593   $ 5,593 $ 6,557    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       5 (1,145)    
Fair value at the ending 5,598   5,412 5,598 5,412    
Investment, Identifier [Axis]: SFR Holdco, LLC 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   4,631   4,631 4,917    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       50 (450)    
Fair value at the ending 4,681   4,467 4,681 4,467    
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities, Equity commitments 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   $ 4,797   4,797      
Fair value at the ending [4],[8] 4,916     $ 4,916      
Percentage of equity commitments   13.90% [6]   13.90% [8]      
Investment, Identifier [Axis]: SFR Holdco, LLC, Equity Securities, Equity commitments 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   $ 3,597   $ 3,597      
Fair value at the ending [4],[8] 3,687     $ 3,687      
Percentage of equity commitments   10.50% [6]   10.50% [8]      
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   $ 5,593   $ 5,593      
Fair value at the ending [4],[8] 5,598     5,598      
Investment, Identifier [Axis]: SFR Holdco, LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   4,631   4,631      
Fair value at the ending [4],[8] 4,681     4,681      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   5,686   5,686      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   1,895   1,895      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   989   989      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   1,711   1,711      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   1,003   1,003      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 6              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   979   979      
Investment, Identifier [Axis]: SI Holdings, Inc. (Integrated Polymer Solutions), Senior Secured Loans 7              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[18],[19]   2,181   2,181      
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   736   736      
Fair value at the ending [4] 741     741      
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   145   145      
Fair value at the ending [4],[7] 146     146      
Investment, Identifier [Axis]: SIP Care Services, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[19]   3,580   3,580      
Fair value at the ending [4],[7],[21] 3,585     3,585      
Investment, Identifier [Axis]: STATS Intermediate Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   14,152   14,152      
Fair value at the ending [4] 13,948     13,948      
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class A interests              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 171,429     171,429      
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AA units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 7,022     7,022      
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AAA units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 8,322     8,322      
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class A interest              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Number of shares held           171,429  
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AA units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           7,022  
Investment, Identifier [Axis]: Sabrosura Foods, LLC et al, Equity Securities, Class AAA units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           8,322  
Investment, Identifier [Axis]: Sandvine Corporation, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   0   0      
Number of shares held [5]           23,212  
Investment, Identifier [Axis]: Sandvine Corporation, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[31]   221   221      
Investment, Identifier [Axis]: Sandvine Corporation, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[11],[12],[31]   0   0      
Investment, Identifier [Axis]: Sandvine Corporation, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[31]   217   217      
Investment, Identifier [Axis]: Sandvine Corporation, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[31]   43   43      
Investment, Identifier [Axis]: Second Avenue SFR Holdings II LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         3,323    
Transfers in (out)         0    
Purchases (cost)         0    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         0    
Fair value at the ending     3,323   3,323    
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[22]   43,723   43,723      
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[22]   13,575   13,575      
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[22]   13,411   13,411      
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[23] $ 43,242     43,242      
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[23] 13,425     13,425      
Investment, Identifier [Axis]: Security Services Acquisition Sub Corp., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[23] 13,262     13,262      
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   969   969      
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   3,702   3,702      
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   8,400   8,400      
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   1,938   1,938      
Investment, Identifier [Axis]: Securly, Inc, Senior Secured Loans. 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   2,488   2,488      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 1,615     1,615      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 3,702     3,702      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 8,400     8,400      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 1,938     1,938      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 2,488     2,488      
Investment, Identifier [Axis]: Securly, Inc., Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10] 457     457      
Investment, Identifier [Axis]: Seran BioScience, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   637   637      
Fair value at the ending [4] $ 706     $ 706      
Number of shares held 26,666     26,666   26,666  
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] $ 0     $ 0      
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   1,923   1,923      
Fair value at the ending [4],[20],[21] 1,915     1,915      
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22],[25]   1,148   1,148      
Fair value at the ending [4],[23],[26] 227     227      
Investment, Identifier [Axis]: Seran BioScience, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   2,181   2,181      
Fair value at the ending [4],[20] 431     431      
Investment, Identifier [Axis]: SheerTrans Solutions, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         5,101    
Transfers in (out)         0    
Purchases (cost)         0    
Sales and paydowns (cost)         (13)    
PIK interest capitalized (cost)         105    
Discount accretion         9    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         (10)    
Fair value at the ending     5,192   5,192    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Preferred interests)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   11,989   11,989 9,192    
Transfers in (out)       0 0    
Purchases (cost)       1,879 3,042    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       (1,267) 122    
Fair value at the ending $ 12,601   $ 12,356 $ 12,601 $ 12,356    
Number of shares held 14,113,182   12,233,889 14,113,182 12,233,889    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   998   $ 998 $ 959    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       (1,017) 0    
PIK interest capitalized (cost)       19 19    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 0   $ 978 0 978    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   5,261   5,261 0    
Transfers in (out)       0 0    
Purchases (cost)       0 1,436    
Sales and paydowns (cost)       (25) (3)    
PIK interest capitalized (cost)       133 22    
Discount accretion       11 2    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       (11) 26    
Fair value at the ending 5,369   1,483 5,369 1,483    
Investment, Identifier [Axis]: SheerTrans Solutions, LLC 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,503   1,503      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       (8)      
PIK interest capitalized (cost)       38      
Discount accretion       3      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       (2)      
Fair value at the ending 1,534     1,534      
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Equity Securities, Preferred interests              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   11,989   11,989      
Fair value at the ending [4],[16] $ 12,601     $ 12,601      
Number of shares held 14,113,182 [16]     14,113,182 [16]   12,233,889 [15]  
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   998   $ 998      
Fair value at the ending [4],[9] $ 0     0      
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   5,261   5,261      
Fair value at the ending [4] 5,369     5,369      
Investment, Identifier [Axis]: SheerTrans Solutions, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,503   1,503      
Fair value at the ending [4] 1,534     1,534      
Investment, Identifier [Axis]: Signal 88, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   23,529   23,529      
Fair value at the ending [4],[7] 23,411     23,411      
Investment, Identifier [Axis]: Signiant Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   14,775   14,775      
Fair value at the ending [4],[23] 15,000     15,000      
Investment, Identifier [Axis]: Signiant Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Signiant Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Skillsoft Corp., Equity Securities, Class A shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6],[61]   31   31      
Fair value at the ending [4],[7],[8],[62] $ 21     $ 21      
Number of shares held 1,308 [7],[8],[62]     1,308 [7],[8],[62]   1,308 [5],[6],[61]  
Investment, Identifier [Axis]: Slater Slater Schulman LLP, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   20,774   $ 20,774      
Fair value at the ending [4] $ 18,875     18,875      
Investment, Identifier [Axis]: SonicWall US Holdings Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[14]   5,985   5,985      
Fair value at the ending [4],[46] 15,630     15,630      
Investment, Identifier [Axis]: Sparq Holdings, In, Senior Secured Loansc. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   41   41      
Investment, Identifier [Axis]: Sparq Holdings, Inc, Senior Secured Loans. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Sparq Holdings, Inc, Senior Secured Loans. 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   444   444      
Investment, Identifier [Axis]: Sparq Holdings, Inc., Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   645   645      
Fair value at the ending [4] $ 373     $ 373      
Number of shares held 600,000     600,000   600,000  
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] $ 0     $ 0      
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 224     224      
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   1,982   1,982      
Fair value at the ending [4],[21] 1,894     1,894      
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   434   434      
Fair value at the ending [4] 415     415      
Investment, Identifier [Axis]: Sparq Holdings, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 424     424      
Investment, Identifier [Axis]: Spherix Global Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   2,757   2,757      
Investment, Identifier [Axis]: Spherix Global Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Spherix Global Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 333     333   333  
Investment, Identifier [Axis]: Spherix Global Inc., Equity Securities, Class A-2 units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   12   $ 12      
Fair value at the ending [4] $ 71     $ 71      
Number of shares held 52     52   52  
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] $ 3,079     $ 3,079      
Investment, Identifier [Axis]: Spherix Global Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   4,888   4,888      
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,198   2,198      
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 4,863     4,863      
Investment, Identifier [Axis]: Sports Operating Holdings II, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 3,965     3,965      
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   2,921   2,921      
Fair value at the ending [4],[9] 2,286     2,286      
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   443   443      
Fair value at the ending [4],[10],[24] 441     441      
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19],[22],[25]   27,478   27,478      
Fair value at the ending [4],[10],[21],[23],[24],[26] 27,409     27,409      
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   4,269   4,269      
Fair value at the ending [4],[21],[24] 4,259     4,259      
Investment, Identifier [Axis]: StarCompliance MidCo, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   2,519   2,519      
Fair value at the ending [4],[23] 2,513     2,513      
Investment, Identifier [Axis]: Steel City Wash, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 14,049     14,049      
Investment, Identifier [Axis]: Steel City Wash, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Steel City Wash, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities, Class A common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   407   407      
Fair value at the ending [4],[16] $ 602     $ 602      
Number of shares held 640,000 [16]     640,000 [16]   640,000 [15]  
Investment, Identifier [Axis]: StormTrap, LLC, Equity Securities, Class A preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   640   $ 640      
Fair value at the ending [4],[16] $ 640     $ 640      
Number of shares held 640,000 [16]     640,000 [16]   640,000 [15]  
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 427     $ 427      
Number of shares held 8,812     8,812      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Equity Securities, Warrant to purchase the equity 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Equity Securities, Warrant to purchase the equity 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] $ 872     872      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   1,212   1,212      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   328   328      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[29] 917     917      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[29] 53     53      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   175   175      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   175   175      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   58   58      
Investment, Identifier [Axis]: Streamland Media MidCo LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   58   58      
Investment, Identifier [Axis]: Summit Professional Education, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[15]   16,676   16,676      
Number of shares held [15]           16,676  
Investment, Identifier [Axis]: Summit Professional Education, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   10,244   10,244 0    
Transfers in (out)       0 0    
Purchases (cost)       0 10,094    
Sales and paydowns (cost)       (51) 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       20 2    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       4 (2)    
Fair value at the ending 10,217   10,094 10,217 10,094    
Investment, Identifier [Axis]: Summit Professional Education, LLC (Class A units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   16,676   16,676 0    
Transfers in (out)       0 0    
Purchases (cost)       2,105 16,676    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 18,781   $ 16,676 $ 18,781 $ 16,676    
Number of shares held 18,781   16,676 18,781 16,676    
Investment, Identifier [Axis]: Summit Professional Education, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,145   $ 1,145 $ 0    
Transfers in (out)       0 0    
Purchases (cost)       490 0    
Sales and paydowns (cost)       (1,145) 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 490   $ 0 490 0    
Investment, Identifier [Axis]: Summit Professional Education, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 18,781     $ 18,781      
Number of shares held [16] 18,781     18,781      
Investment, Identifier [Axis]: Summit Professional Education, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   10,244   $ 10,244      
Fair value at the ending [4],[23] $ 10,217     10,217      
Investment, Identifier [Axis]: Summit Professional Education, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,145   1,145      
Fair value at the ending [4],[9] 490     490      
Investment, Identifier [Axis]: Sundy Village West Mezz Borrower, LLC, Junior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   27,772   27,772      
Fair value at the ending [4],[8],[9],[13] 27,768     27,768      
Investment, Identifier [Axis]: Sundy Village West Mezz Borrower, LLC, Junior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12]   3,598   3,598      
Fair value at the ending [4],[8],[9],[13] 10,366     10,366      
Investment, Identifier [Axis]: Sunstates Security, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   20,400   20,400      
Fair value at the ending [4] 20,200     20,200      
Investment, Identifier [Axis]: Sunstates Security, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Symplr Software, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,580   3,580      
Fair value at the ending [4] 3,538     3,538      
Investment, Identifier [Axis]: Syniverse Holdings, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   7,026   7,026      
Fair value at the ending [4],[8] 11,362     11,362      
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20],[21] 4,320     4,320      
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] 5,275     5,275      
Investment, Identifier [Axis]: TCFIII OWL Buyer LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20],[21] 4,735     4,735      
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   4,343   4,343      
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   5,303   5,303      
Investment, Identifier [Axis]: TCFIII Owl Buyer LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   4,759   4,759      
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   4,499   4,499      
Fair value at the ending [4],[7] 4,430     4,430      
Investment, Identifier [Axis]: TEAM Public Choices, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   1,495   1,495      
Fair value at the ending [4],[23] 1,472     1,472      
Investment, Identifier [Axis]: TIC Bidco Limited, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[32],[57]   14,289   14,289      
Investment, Identifier [Axis]: TIC Bidco Limited, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[33],[58] 15,729     15,729      
Investment, Identifier [Axis]: TIC Bidco Limited, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[33],[58] 2,145     2,145      
Investment, Identifier [Axis]: Talent Systems, LLC (fka Moonraker Acquisitionco LLC), Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 6,825     6,825      
Investment, Identifier [Axis]: Talent Systems, LLC (fka Moonraker Acquisitionco LLC), Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 47     47      
Investment, Identifier [Axis]: Talos Energy Inc., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7],[8],[62] $ 103     $ 103      
Number of shares held [7],[8],[62] 12,138     12,138      
Investment, Identifier [Axis]: Talos Energy Inc., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[6],[61]   118   $ 118      
Number of shares held [5],[6],[61]           12,138  
Investment, Identifier [Axis]: Tavoron Buyer Corp., Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 2,350     $ 2,350      
Number of shares held 2,417,450     2,417,450      
Investment, Identifier [Axis]: Tavoron Buyer Corp., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] $ 7,600     $ 7,600      
Investment, Identifier [Axis]: Tavoron Buyer Corp., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 1,070     1,070      
Investment, Identifier [Axis]: Tavoron Buyer Corp., Senior Secured Loans (Revolver) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[28] 0     0      
Investment, Identifier [Axis]: Tavoron Buyer Corp., Senior Secured Loans (Revolver) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Tax Protection BuyCo, LLC, Equity Securities, Common units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 1,159     $ 1,159      
Number of shares held [16] 1,159     1,159      
Investment, Identifier [Axis]: Tax Protection BuyCo, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24],[26] $ 23,640     $ 23,640      
Investment, Identifier [Axis]: Tax Protection BuyCo, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Tax Protection BuyCo, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Tegra118 Wealth Solutions, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 1,761     1,761      
Investment, Identifier [Axis]: Teneo Holdings LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[14],[22]   8,280   8,280      
Fair value at the ending [4],[23] 8,243     8,243      
Investment, Identifier [Axis]: Tenneco Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[14],[17]   12,774   12,774      
Fair value at the ending [4],[7],[20] 15,282     15,282      
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[25]   10,437   10,437      
Fair value at the ending [4],[10],[20],[26] 9,444     9,444      
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 584     584      
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: The Black Tux, LLC, Senior Secured Loans(Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans (Revolver) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[63]   0   0      
Fair value at the ending [4],[8],[9],[64] 2,041     2,041      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans (Revolver) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,274   1,274      
Fair value at the ending [4],[9] 3,334     3,334      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[63]   5,637   5,637      
Fair value at the ending [4],[8],[64] 6,448     6,448      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[63]   17,252   17,252      
Fair value at the ending [4],[8],[64] 19,733     19,733      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   6,305   6,305      
Fair value at the ending [4],[23] 6,329     6,329      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   13,348   13,348      
Investment, Identifier [Axis]: The Gersh Agency, LLC, Senior Secured Loans4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23] 13,398     13,398      
Investment, Identifier [Axis]: The Hertz Corporation, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   7,491   7,491      
Fair value at the ending [4],[8] 6,892     6,892      
Investment, Identifier [Axis]: The Hertz Corporation, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   1,463   1,463      
Fair value at the ending [4],[8] 1,332     1,332      
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   268   268      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[19]   2,905   2,905      
Fair value at the ending [4],[7],[21] 2,744     2,744      
Investment, Identifier [Axis]: The Kyjen Company, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3   3      
Fair value at the ending [4] 3     3      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 6,245     6,245      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   5,349   5,349      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   28,669   28,669      
Fair value at the ending [4],[23] 28,653     28,653      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   7,751   7,751      
Fair value at the ending [4] 7,746     7,746      
Investment, Identifier [Axis]: The Smilist DSO, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 6,221     6,221      
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 31,764     31,764      
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 2,162,506     2,162,506      
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   874   $ 874      
Number of shares held           31,764  
Investment, Identifier [Axis]: Thrasio, LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   0      
Number of shares held           2,162,506  
Investment, Identifier [Axis]: Thrasio, LLC, Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   1,397   1,397      
Fair value at the ending [4],[29] $ 1,323     1,323      
Investment, Identifier [Axis]: Thrasio, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   546   546      
Fair value at the ending [4],[29] 574     574      
Investment, Identifier [Axis]: Thryv, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   7,895   7,895      
Investment, Identifier [Axis]: Thryv, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 7,039     7,039      
Investment, Identifier [Axis]: TigerConnect, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 9     9      
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   811   811      
Fair value at the ending [4],[9],[13] 1,001     1,001      
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   9,925   9,925      
Fair value at the ending [4],[21] 10,000     10,000      
Investment, Identifier [Axis]: TigerConnect, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   567   567      
Fair value at the ending [4] 571     571      
Investment, Identifier [Axis]: Tiugo Group Holdings Corp, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23],[24],[26] 65,892     65,892      
Investment, Identifier [Axis]: Tiugo Group Holdings Corp, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Tiugo Group Holdings Corp, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Touchmath Acquisition LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   9,516   9,516      
Fair value at the ending [4],[23] 9,269     9,269      
Investment, Identifier [Axis]: Touchmath Acquisition LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Touchtunes Music Group, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 4,605     4,605      
Investment, Identifier [Axis]: Transnetwork LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   15,838   15,838      
Fair value at the ending [4],[23],[24] 15,709     15,709      
Investment, Identifier [Axis]: Triad Financial Services, Inc (equity commitment)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         0    
Transfers in (out)         0    
Purchases (cost)         4,214    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         (313)    
Fair value at the ending     3,901   3,901    
Amount of total commitment         4,214    
Total equity investment     41,855   41,855    
Investment, Identifier [Axis]: Triad Financial Services, Inc. (Equity commitment)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   4,803   4,803      
Transfers in (out)       0      
Purchases (cost)       1,521      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       16      
Fair value at the ending 6,340     6,340      
Amount of total commitment       6,324      
Total equity investment 41,855     41,855      
Investment, Identifier [Axis]: Triad Financial Services, Inc., Equity Securities, Equity commitment              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[65]   4,803   4,803      
Fair value at the ending [4],[8],[66] 6,340     6,340      
Amount of total commitment   4,803 [6],[65]   6,324 [8],[66]      
Total equity investment 41,855 [8],[66]     41,855 [8],[66]   $ 41,855 [6],[65]  
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,614   2,614      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   609   609      
Fair value at the ending [4],[9] 2,179     2,179      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,603   3,603      
Fair value at the ending [4],[10],[20],[21],[26] 11,664     11,664      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[18],[19],[25]   11,729   11,729      
Fair value at the ending [4] 3,583     3,583      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   370   370      
Fair value at the ending [4] 12,083     12,083      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 368     368      
Investment, Identifier [Axis]: Trilon Group, LLC, Senior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 10,046     10,046      
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   9,861   9,861      
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Truck-Lite Co., LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   20,832   20,832      
Fair value at the ending [4],[23],[26] 20,707     20,707      
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   2,987   2,987      
Fair value at the ending [4],[9],[13] 3,715     3,715      
Investment, Identifier [Axis]: Ultra Clean Holdco LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   22,000   22,000      
Investment, Identifier [Axis]: Unanet, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Unanet, Inc., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   2,804   2,804      
Fair value at the ending [4] $ 2,934     $ 2,934      
Number of shares held 1,621,053     1,621,053   1,621,053  
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[21] $ 22,000     $ 22,000      
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   3,393   3,393      
Fair value at the ending [4],[9],[13] 4,226     4,226      
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Unanet, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   18,005   18,005      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 2,100     2,100      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   4,639   4,639      
Fair value at the ending [4],[9],[13] 621     621      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Delayed Draw) 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 1,684     1,684      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 18,049     18,049      
Investment, Identifier [Axis]: Valkyrie Buyer, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 7,518     7,518      
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   26,428   26,428      
Fair value at the ending [4],[8],[47] 28,027     28,027      
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12],[30],[34]   0   0      
Fair value at the ending [4],[8],[9],[13],[47] 0     0      
Investment, Identifier [Axis]: Varicent Intermediate Holdings Corporation, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[34]   0   0      
Fair value at the ending [4],[8],[9],[47] 0     0      
Investment, Identifier [Axis]: Velociti, LLC, Equity Securities, Units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[16] $ 6,076     $ 6,076      
Number of shares held [16] 6,075,951     6,075,951      
Investment, Identifier [Axis]: Velociti, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[23] $ 12,000     $ 12,000      
Investment, Identifier [Axis]: Velociti, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Vero Biotech Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   29,471   29,471      
Investment, Identifier [Axis]: Vero Biotech Inc., Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 176     176      
Investment, Identifier [Axis]: Vero Biotech Inc., Equity Securities, Warrant to purchase the equity              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   182   182      
Investment, Identifier [Axis]: Vero Biotech Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 29,535     29,535      
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18]   10,075   10,075      
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   504   504      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[26] 29,333     29,333      
Investment, Identifier [Axis]: Vhagar Purchaser, LLC, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] 13,133     13,133      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 1,110,000     1,110,000      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Number of shares held           1,110,000  
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31],[67]   0   0      
Fair value at the ending [4],[29],[68] $ 0     0      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31],[67]   0   0      
Fair value at the ending [4],[29],[68] 0     0      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31],[67]   0   0      
Fair value at the ending [4],[29],[68] 0     0      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31],[67]   0   0      
Fair value at the ending [4],[29],[68] 0     0      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   246   246      
Fair value at the ending [4],[29] 133     133      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 6              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   74   74      
Fair value at the ending [4],[29] 40     40      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 7              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   130   130      
Fair value at the ending [4],[29] 70     70      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Junior Secured Loans 8              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   0   0      
Fair value at the ending [4],[29] 0     0      
Investment, Identifier [Axis]: Vice Acquisition Holdco, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[31]   417   417      
Fair value at the ending [4],[29] 427     427      
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[22]   1,717   1,717      
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   987   987      
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans.1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   9,136   9,136      
Investment, Identifier [Axis]: Volt Bidco, Inc, Senior Secured Loans.3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   712   712      
Investment, Identifier [Axis]: Volt Bidco, Inc. , Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 975     $ 975      
Number of shares held 878     878      
Investment, Identifier [Axis]: Volt Bidco, Inc., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   1,092   $ 1,092      
Number of shares held           878  
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] $ 0     0      
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 9,471     9,471      
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[23] 1,780     1,780      
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 738     738      
Investment, Identifier [Axis]: Volt Bidco, Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[24] 1,023     1,023      
Investment, Identifier [Axis]: WPEngine, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[18],[19]   16,640   16,640      
Investment, Identifier [Axis]: WPEngine, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: WPEngine, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[10],[21] 16,492     16,492      
Investment, Identifier [Axis]: WPEngine, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Watchguard Technologies, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   20,532   20,532      
Investment, Identifier [Axis]: Watchguard Technologies, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] 20,444     20,444      
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[25]   9,950   9,950      
Fair value at the ending [4],[26] 9,890     9,890      
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   0   0      
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: Water Buyer, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   5,000   5,000      
Investment, Identifier [Axis]: WebPT, Inc, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   275   275      
Investment, Identifier [Axis]: WebPT, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] 4,799     4,799      
Investment, Identifier [Axis]: WebPT, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 437     437      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   22,772   22,772      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       776      
Discount accretion       46      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       (6,518)      
Fair value at the ending 17,076     17,076      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,980   1,980      
Transfers in (out)       0      
Purchases (cost)       840      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       68      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 2,888     2,888      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   1,539   1,539      
Transfers in (out)       0      
Purchases (cost)       446      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       45      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 2,030     2,030      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series A preferred stock)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 0     $ 0      
Number of shares held 518,970     518,970      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series A preferred stock) 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Number of shares held           518,970  
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series B preferred stock)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 0     $ 0      
Number of shares held 116,083     116,083      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc. (Series B preferred stock) 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   0   $ 0      
Number of shares held           116,083  
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Equity Securities, Series A preferred stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 518,970     518,970      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Equity Securities, Series B preferred stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 0     $ 0      
Number of shares held 116,083     116,083      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Junior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   22,772   $ 22,772      
Fair value at the ending [4] $ 17,076     17,076      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   1,980   1,980      
Fair value at the ending [4],[9],[13] 2,888     2,888      
Investment, Identifier [Axis]: Whistler Parent Holdings III, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   1,539   1,539      
Fair value at the ending [4] 2,030     2,030      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Equity Securities, Preferred units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[15]   5,200   5,200      
Fair value at the ending [4],[8],[16] $ 6,312     $ 6,312      
Number of shares held 2,992 [8],[16]     2,992 [8],[16]   2,992 [6],[15]  
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   455   $ 455      
Fair value at the ending [4],[8] $ 1,654     1,654      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   10,033   10,033      
Fair value at the ending [4],[8] 486     486      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   1,736   1,736      
Fair value at the ending [4],[8] 10,730     10,730      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   3,114   3,114      
Fair value at the ending [4],[8] 1,856     1,856      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 5              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6]   2,135   2,135      
Fair value at the ending [4],[8] 3,331     3,331      
Investment, Identifier [Axis]: Witkoff/Monroe 700 JV LLC, Junior Secured Loans 6              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8] 2,283     2,283      
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17],[19]   5,596   5,596      
Investment, Identifier [Axis]: XanEdu Publishing, Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[17]   2,224   2,224      
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   278   278      
Fair value at the ending [4] $ 224     $ 224      
Number of shares held 65,104     65,104   65,104  
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] $ 0     $ 0      
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20],[21] 5,549     5,549      
Investment, Identifier [Axis]: XanEdu Publishing, Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[20] 2,205     2,205      
Investment, Identifier [Axis]: Xpress Wellness, LLC, Equity Securities, Series A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   18,535   18,535      
Fair value at the ending [4] $ 14,294     $ 14,294      
Number of shares held 18,310     18,310   18,310  
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5],[17]   40,112   $ 40,112      
Fair value at the ending [4],[7],[20] $ 37,943     37,943      
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11],[12]   451   451      
Fair value at the ending [4],[9],[13] 2,330     2,330      
Investment, Identifier [Axis]: Xpress Wellness, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   6,462   6,462      
Fair value at the ending [4],[9] 4,341     4,341      
Investment, Identifier [Axis]: YBR OZ ECE, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       1,961      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       3      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       38      
Fair value at the ending 2,002     2,002      
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Class A units)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       6,875      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 6,875     $ 6,875      
Number of shares held 6,875     6,875      
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   $ 0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending $ 0     0      
Investment, Identifier [Axis]: YBR OZ ECE, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   0   0      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       0      
Fair value at the ending 0     0      
Investment, Identifier [Axis]: YBR OZ ECE, LLC, Equity Securities, Class A units              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 6,875     $ 6,875      
Number of shares held 6,875     6,875      
Investment, Identifier [Axis]: YBR OZ ECE, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4] $ 2,002     $ 2,002      
Investment, Identifier [Axis]: YBR OZ ECE, LLC, Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9],[13] 0     0      
Investment, Identifier [Axis]: YBR OZ ECE, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: ZI Intermediate II, Inc, Senior Secured Loans.              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   57,078   57,078      
Investment, Identifier [Axis]: ZI Intermediate II, Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   0   0      
Investment, Identifier [Axis]: ZI Intermediate II, Inc., Equity Securities, Shares of common stock              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2]   3,920   3,920      
Fair value at the ending [4] $ 4,237     $ 4,237      
Number of shares held 3,790     3,790   3,790  
Investment, Identifier [Axis]: ZI Intermediate II, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[7] $ 57,193     $ 57,193      
Investment, Identifier [Axis]: ZI Intermediate II, Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[9] 0     0      
Investment, Identifier [Axis]: Zodega Landscaping, LLC              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   12,431   12,431 11,969    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       (60) (60)    
PIK interest capitalized (cost)       0 0    
Discount accretion       51 43    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       (11) 473    
Fair value at the ending $ 12,411   12,425 $ 12,411 12,425    
Investment, Identifier [Axis]: Zodega Landscaping, LLC ( preferred interests)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Number of units held 146,757     146,757      
Investment, Identifier [Axis]: Zodega Landscaping, LLC (Preferred interestes)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning         12,421    
Transfers in (out)         0    
Purchases (cost)         0    
Sales and paydowns (cost)         0    
PIK interest capitalized (cost)         0    
Discount accretion         0    
Net realized gain (loss)         0    
Net change in unrealized gain (loss)         42    
Fair value at the ending     $ 12,463   $ 12,463    
Number of units held     124,206   124,206    
Investment, Identifier [Axis]: Zodega Landscaping, LLC (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   992   $ 992 $ 0    
Transfers in (out)       0 0    
Purchases (cost)       0 0    
Sales and paydowns (cost)       0 0    
PIK interest capitalized (cost)       0 0    
Discount accretion       0 0    
Net realized gain (loss)       0 0    
Net change in unrealized gain (loss)       0 0    
Fair value at the ending $ 992   $ 0 992 $ 0    
Investment, Identifier [Axis]: Zodega Landscaping, LLC (preferred interests)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning   15,130   15,130      
Transfers in (out)       0      
Purchases (cost)       0      
Sales and paydowns (cost)       0      
PIK interest capitalized (cost)       0      
Discount accretion       0      
Net realized gain (loss)       0      
Net change in unrealized gain (loss)       2,218      
Fair value at the ending 17,348     17,348      
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Equity Securities, Preferred interests              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[69]   15,130   15,130      
Fair value at the ending [4],[70] $ 17,348     $ 17,348      
Number of shares held 146,757 [70]     146,757 [70]   146,757 [69]  
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[5]   12,431   $ 12,431      
Fair value at the ending [4],[7] $ 12,411     12,411      
Investment, Identifier [Axis]: Zodega Landscaping, LLC, Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[11]   992   992      
Fair value at the ending [4],[9] 992     992      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[12],[34]   2,149   2,149      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[11],[34]   0   0      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[19],[34]   16,535   16,535      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[19],[34]   1,291   1,291      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc, Senior Secured Loans. 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   2,063   2,063      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Equity Securities, Class B preferred shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[47] $ 283     $ 283      
Number of shares held [8],[47] 96,603     96,603      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Equity Securities, Class C preferred shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[47] $ 63     $ 63      
Number of shares held [8],[47] 18,328     18,328      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Equity Securities, Preferred shares              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[6],[34]   714   $ 714      
Number of shares held [6],[34]           96,603  
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans (Delayed Draw)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[13],[47] $ 577     577      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans (Revolver)              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[9],[47] 0     0      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans 1              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[21],[47] 13,525     13,525      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans 2              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[21],[47] 1,052     1,052      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans 3              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[47] 2,214     2,214      
Investment, Identifier [Axis]: ecMarket Inc. and Conexiom US Inc., Senior Secured Loans 4              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[8],[47] 1,681     1,681      
Investment, Identifier [Axis]: iCIMS, Inc, Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the beginning [2],[19]   $ 8,000   8,000      
Investment, Identifier [Axis]: iCIMS, Inc., Senior Secured Loans              
Transactions with Affiliated Companies, Fair value Roll Forward              
Fair value at the ending [4],[21] $ 7,990     $ 7,990      
[1] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940, as amended, (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[2] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).
[3] All of the Company’s investments are issued by eligible portfolio companies, as defined in the Investment Company Act of 1940, as amended, (the “1940 Act”), unless otherwise noted. All of the Company’s investments are issued by U.S. portfolio companies unless otherwise noted.
[4] Except as otherwise noted, because there is no readily available market value for these investments, the fair value of each of these investments is determined in good faith using significant unobservable inputs by the Valuation Designee. (See Note 4 in the accompanying notes to the consolidated financial statements).
[5] All or a portion of this security was held in MC Income Plus Financing SPV LLC (the “SPV”) as collateral for the Company’s secured revolving credit facility (the “SPV Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[6] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of December 31, 2024, non-qualifying assets totaled 11.4% of the Company’s total assets.
[7] All or a portion of this security was held in MC Income Plus Financing SPV LLC (the “SPV”) as collateral for the Company’s secured revolving credit facility (the “SPV Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[8] This investment is treated as a non-qualifying investment under Section 55(a) of the 1940 Act. Under the 1940 Act, the Company may not acquire any non-qualifying asset unless, at the time the acquisition is made, qualifying assets represent at least 70% of the Company’s total assets. As of June 30, 2025, non-qualifying assets totaled 13.0% of the Company’s total assets.
[9] All or a portion of this commitment was unfunded at June 30, 2025. As such, interest is earned only on the funded portion of this commitment.
[10] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding II, LLC (the “2023 Issuer”) as collateral for the Company’s asset-backed securitization (the “2023 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[11] All or a portion of this commitment was unfunded at December 31, 2024. As such, interest is earned only on the funded portion of this commitment.
[12] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings by the Company.
[13] This delayed draw loan requires that certain financial covenants be met by the portfolio company prior to any fundings by the Company.
[14] Investment position or portion thereof unsettled as of December 31, 2024.
[15] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[16] Investment is held by a taxable subsidiary of the Company. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s wholly-owned taxable subsidiaries.
[17] All or a portion of this security was held in MC Income Plus Financing SPV II LLC (the “SPV II”) as collateral for the Company’s senior secured term credit facility (the “SPV II Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[18] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding II, LLC (the “2023 Issuer”) as collateral for the Company’s asset-backed securitization (the “2023 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[19] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding, LLC (the “2022 Issuer”) as collateral for the Company’s asset-backed securitization (the “2022 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[20] All or a portion of this security was held in MC Income Plus Financing SPV II LLC (the “SPV II”) as collateral for the Company’s senior secured term credit facility (the “SPV II Credit Facility”) with KeyBank National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[21] All or a portion of this security was held in Monroe Capital Income Plus ABS Funding, LLC (the “2022 Issuer”) as collateral for the Company’s asset-backed securitization (the “2022 ABS”). (See Note 7 in the accompanying notes to the consolidated financial statements).
[22] All or a portion of this security was held in MC Income Plus Financing SPV IV LLC (the “SPV IV”) as collateral for the Company’s secured revolving credit facility (the “SPV IV Credit Facility”) with Capital One, National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[23] All or a portion of this security was held in MC Income Plus Financing SPV IV LLC (the “SPV IV”) as collateral for the Company’s secured revolving credit facility (the “SPV IV Credit Facility”) with Capital One, National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[24] All or a portion of this security was held in MC Income Plus Financing SPV V LLC (the "SPV V") as collateral for the Company's secured revolving credit facility (the "SPV V Credit Facility") with Capital One, National Association. (See Note 7 in the accompanying notes to the consolidated financial statements).
[25] All or a portion of this security was held in MC Income Plus Financing SPV III LLC (the “SPV III”) as collateral for the Company’s secured revolving credit facility (the “SPV III Credit Facility”) with Goldman Sachs Bank USA. (See Note 7 in the accompanying notes to the consolidated financial statements).
[26] All or a portion of this security was held in MC Income Plus Financing SPV III LLC (the “SPV III”) as collateral for the Company’s secured revolving credit facility (the “SPV III Credit Facility”) with Goldman Sachs Bank USA. (See Note 7 in the accompanying notes to the consolidated financial statements).
[27] This loan is denominated in Canadian dollars and is translated into U.S. dollars as of the valuation date.
[28] This loan is denominated in Canadian dollars and is translated into U.S. dollars as of the valuation date.
[29] This position was on non-accrual status as of June 30, 2025, meaning that the Company has ceased accruing interest income on the position. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s accounting policies.
[30] Investments without an interest rate are non-income producing.
[31] This position was on non-accrual status as of December 31, 2024, meaning that the Company has ceased accruing interest income on the position. See Note 2 in the accompanying notes to the consolidated financial statements for additional information on the Company’s accounting policies.
[32] The headquarters of this portfolio company is located in United Kingdom.
[33] The headquarters of this portfolio company is located in United Kingdom.
[34] The headquarters of this portfolio company is located in Canada.
[35] The headquarters of this portfolio company is located in Finland.
[36] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $835.
[37] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $835
[38] The headquarters of this portfolio company is located in Ireland.
[39] The headquarters of this portfolio company is located in France.
[40] The headquarters of this portfolio company is located in France.
[41] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 18.1%.
[42] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 18.1%.
[43] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $34.
[44] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $1,091 for a total commitment of $3,536.
[45] The headquarters of this portfolio company is located in Costa Rica.
[46] Investment position or portion thereof unsettled as of June 30, 2025.
[47] The headquarters of this portfolio company is located in Canada.
[48] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $697.
[49] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $697.
[50] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $31,694 for a total commitment of $45,000.
[51] The headquarters of this portfolio company is located in Australia.
[52] This loan is denominated in Australian dollars and is translated into U.S. dollars as of the valuation date.
[53] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $884.
[54] The headquarters of this portfolio company is located in Australia.
[55] This loan is denominated in Australian dollars and is translated into U.S. dollars as of the valuation date.
[56] The investment is subject to a servicing agreement whereby the Fund earns a pooled effective yield of 15.1%.
[57] This loan is denominated in Great Britain pounds and is translated into U.S. dollars as of the valuation date.
[58] This loan is denominated in Great Britain pounds and is translated into U.S. dollars as of the valuation date.
[59] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $8.
[60] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $951.
[61] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[62] The fair value of this investment was valued using Level 1 inputs. See Note 4 in the accompanying notes to the consolidated financial statements.
[63] This loan is denominated in Euros and is translated into U.S. dollars as of the valuation date.
[64] This loan is denominated in Euros and is translated into U.S. dollars as of the valuation date.
[65] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $37,052 for a total commitment of $41,855.
[66] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $35,531 for a total commitment of $41,855.
[67] This is a demand note with no stated maturity.
[68] This is a demand note with no stated maturity.
[69] As of December 31, 2024, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $1,197.
[70] As of June 30, 2025, the Company was party to a subscription agreement with a commitment to fund an additional equity investment of $1,197.