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Schedule of Investments in and Advances to Affiliates (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [1],[2],[3],[4],[5] $ 1,785,299  
Fair Value, ending balance [6],[7],[8],[9],[10] 1,780,198  
Control investments    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 62,862  
Amount of Interest or Dividends Credited in Income 876  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 56,092  
Gross Additions 1,540  
Gross Reductions (512)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (3,176)  
Fair Value, ending balance 53,944  
Affiliate investments    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 258,885  
Amount of Interest or Dividends Credited in Income 8,254  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 292,891  
Gross Additions 13,055  
Gross Reductions (34,320)  
Amount of Realized Gain/(Loss) 4,087  
Amount of Unrealized Gain/(Loss) 1,058  
Fair Value, ending balance 276,771  
Total Control & Affiliate Investments    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 321,747  
Amount of Interest or Dividends Credited in Income 9,130  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 348,983  
Gross Additions 14,595  
Gross Reductions (34,832)  
Amount of Realized Gain/(Loss) 4,087  
Amount of Unrealized Gain/(Loss) (2,118)  
Fair Value, ending balance 330,715  
Investment, Identifier [Axis]: 360 QUOTE TOPCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 26,188 [11] $ 23,677 [12]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[12] 23,203  
Fair Value, ending balance [8],[11] 26,187  
Investment, Identifier [Axis]: 360 QUOTE TOPCO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 846 [13] 3,346
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,279  
Fair Value, ending balance [8],[13] 846  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13],[14] 748  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13],[14] 748  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 189 [14] 181 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 181  
Fair Value, ending balance [8],[14] 189  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,008 [14] 2,933 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 2,933  
Fair Value, ending balance [8],[14] 3,008  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,023 [14] $ 2,933 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 2,933  
Fair Value, ending balance [8],[14] 2,570  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., Warrants (Expiration - December 11, 2025)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 0  
Fair Value, ending balance [8],[14] $ 0  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) 617,803 [14],[16] 617,803 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 0  
Fair Value, ending balance [8],[14] $ 0  
Investment, Identifier [Axis]: AAC NEW HOLDCO INC., shares of preferred stock    
Schedule of Investments [Line Items]    
Shares (in shares) 11,909,273.85 [14],[16] 6,257,941 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 5,702  
Fair Value, ending balance [8],[14] 3,108  
Investment, Identifier [Axis]: AAC New Holdco Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 748  
Amount of Interest or Dividends Credited in Income 13  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 748  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 748  
Investment, Identifier [Axis]: AAC New Holdco Inc., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 189  
Amount of Interest or Dividends Credited in Income 8  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 181  
Gross Additions 8  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 189  
Investment, Identifier [Axis]: AAC New Holdco Inc., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,008  
Amount of Interest or Dividends Credited in Income 75  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,933  
Gross Additions 75  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 3,008  
Investment, Identifier [Axis]: AAC New Holdco Inc., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,023  
Amount of Interest or Dividends Credited in Income 90  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,933  
Gross Additions 90  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (453)  
Fair Value, ending balance 2,570  
Investment, Identifier [Axis]: AAC New Holdco Inc., Warrants    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: AAC New Holdco Inc., shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) 617,803  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: AAC New Holdco Inc., shares of preferred stock    
Schedule of Investments [Line Items]    
Shares (in shares) 11,909,274  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,702  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (2,594)  
Fair Value, ending balance $ 3,108  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, Class B-2 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 552  
Fair Value, ending balance [8],[18],[19] 552  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,000 $ 10,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,550  
Fair Value, ending balance [8] 9,000  
Investment, Identifier [Axis]: ACACIA BUYERCO V LLC, Revolver Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 0  
Fair Value, ending balance [8] 0  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, First LIen    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [22]   $ 19,749
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[22] 19,749  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [23],[24] 19,749  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[23],[24] $ 19,749  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,019 [16],[18],[19] 1,019 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 0  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: ACCELERATION PARTNERS, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,019 [16],[18],[19] 1,019 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,281  
Fair Value, ending balance [8],[18],[19] $ 1,281  
Investment, Identifier [Axis]: ACCELERATION, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,611.22 [16],[18],[19] 1,611.22 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 0  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: ACCELERATION, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 13,451.22 [16],[18],[19] 13,451.22 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,363  
Fair Value, ending balance [8],[18],[19] 1,363  
Investment, Identifier [Axis]: ACE GATHERING, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,743 [25] $ 3,953 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 3,953  
Fair Value, ending balance [8],[25] 3,743  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,839 [13],[24] 2,937 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 2,893  
Fair Value, ending balance [8],[13],[24] 4,801  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 21,024 21,077 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 20,761  
Fair Value, ending balance [8] 20,855  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 695 [13] $ 695 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 685  
Fair Value, ending balance [8],[13] 689  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,839  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,893  
Gross Additions 0  
Gross Reductions (2,893)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 21,024  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 20,761  
Gross Additions 0  
Gross Reductions (20,761)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,006,045.85 1,006,045.85 [15],[17],[20],[21]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 2,941  
Gross Additions 0  
Gross Reductions (5,431)  
Amount of Realized Gain/(Loss) 4,087  
Amount of Unrealized Gain/(Loss) (1,597)  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: AIR CONDITIONING SPECIALIST, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 695  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 685  
Gross Additions 0  
Gross Reductions (685)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, L.P, membership preferred interest    
Schedule of Investments [Line Items]    
Ownership percent 3.88% [16] 3.88% [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 2,840  
Fair Value, ending balance [8] 3,060  
Investment, Identifier [Axis]: ALLIANCE SPORTS GROUP, Unsecured Convertible Note    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 173 $ 173
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 173  
Fair Value, ending balance [8] $ 173  
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 21,062.03 [14],[16] 21,062.03 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 1,843  
Fair Value, ending balance [8],[14] $ 1,194  
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, Class C Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 28.16 [14],[16],[18],[19] 28.16 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] 0  
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,859 [14] $ 5,851 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 5,851  
Fair Value, ending balance [8],[14] 5,859  
Investment, Identifier [Axis]: AMERICAN NUTS OPERATIONS LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,859 [14] $ 5,851 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 4,973  
Fair Value, ending balance [8],[14] 4,980  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (FKA ROOF OPCO, LLC), Class A units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   535,714.29
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 664  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (FKA ROOF OPCO, LLC), Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   496,674.92
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 0  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC (FKA ROOF OPCO, LLC), Class B Units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   250,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 0  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 13,261 $ 13,261
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,802  
Fair Value, ending balance [8] 11,272  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 13,261 13,261
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,802  
Fair Value, ending balance [8] 11,272  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES,LLC (FKA ROOF OPCO, LLC), Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 535,714.29  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 237  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES,LLC (FKA ROOF OPCO, LLC), Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 496,674.92  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: APPLE ROOFING ADMINISTRATIVE SERVICES,LLC (FKA ROOF OPCO, LLC), Class B Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 250,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: ARBORWORKS, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 100 [14],[16],[18],[19] 100 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 5  
Fair Value, ending balance [8],[14],[18],[19] $ 5  
Investment, Identifier [Axis]: ARBORWORKS, LLC, Class A-1 Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,666.67 [14],[16] 1,666.67 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 0  
Fair Value, ending balance [8],[14] $ 0  
Investment, Identifier [Axis]: ARBORWORKS, LLC, Class A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 13,898.32 [14],[16] 13,898.32 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 3,032  
Fair Value, ending balance [8],[14] $ 3,785  
Investment, Identifier [Axis]: ARBORWORKS, LLC, Class B-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 13,898.32 [14],[16] 13,898.32 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 0  
Fair Value, ending balance [8],[14] 0  
Investment, Identifier [Axis]: ARBORWORKS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,616 [14] $ 3,515
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,473  
Fair Value, ending balance [8],[14] 3,616  
Investment, Identifier [Axis]: ARBORWORKS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 920 [13],[14] $ 886 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 886  
Fair Value, ending balance [8],[13],[14] $ 920  
Investment, Identifier [Axis]: ASC ORTHO MANAGEMENT COMPANY, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,572 [16],[18],[19] 2,572 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 234  
Fair Value, ending balance [8],[18],[19] 41  
Investment, Identifier [Axis]: ATS OPERATING, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,250 $ 9,250
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,250  
Fair Value, ending balance [8] 9,250  
Investment, Identifier [Axis]: ATS OPERATING, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,250 $ 9,250
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,250  
Fair Value, ending balance [8] $ 9,250  
Investment, Identifier [Axis]: ATS OPERATING, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,220  
Fair Value, ending balance [8],[18],[19] 1,220  
Investment, Identifier [Axis]: ATS OPERATING, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,750 [13],[24] $ 1,250 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 1,250  
Fair Value, ending balance [8],[13],[24] $ 1,750  
Investment, Identifier [Axis]: American Nuts Operations LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 21,062.03  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 1,843  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (649)  
Fair Value, ending balance $ 1,194  
Investment, Identifier [Axis]: American Nuts Operations LLC, Class C Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 28.16  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: American Nuts Operations LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,859  
Amount of Interest or Dividends Credited in Income 192  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,851  
Gross Additions 8  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 5,859  
Investment, Identifier [Axis]: American Nuts Operations LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,859  
Amount of Interest or Dividends Credited in Income 192  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 4,973  
Gross Additions 8  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (1)  
Fair Value, ending balance $ 4,980  
Investment, Identifier [Axis]: ArborWorks, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 100  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 5  
Investment, Identifier [Axis]: ArborWorks, LLC, Class A-1 Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,666.67  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: ArborWorks, LLC, Class A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 13,898.32  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,032  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 753  
Fair Value, ending balance $ 3,785  
Investment, Identifier [Axis]: ArborWorks, LLC, Class B-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 13,898.32  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: ArborWorks, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,616  
Amount of Interest or Dividends Credited in Income 99  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,473  
Gross Additions 101  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 42  
Fair Value, ending balance 3,616  
Investment, Identifier [Axis]: ArborWorks, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 920  
Amount of Interest or Dividends Credited in Income 34  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 886  
Gross Additions 34  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 920  
Investment, Identifier [Axis]: BINSWANGER HOLDING CORP., Shares of Common Stock    
Schedule of Investments [Line Items]    
Shares (in shares) [16] 900,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] $ 618  
Investment, Identifier [Axis]: BINSWANGER HOLDING CORP., shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) [17]   900,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 800  
Investment, Identifier [Axis]: BOND BRAND LOYALTY ULC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000 [16],[18],[19],[28] 1,000 [17],[20],[21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[29] $ 0  
Fair Value, ending balance [8],[18],[19],[28] 0  
Investment, Identifier [Axis]: BOND BRAND LOYALTY ULC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,843 [18],[28] $ 8,865
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 8,865  
Fair Value, ending balance [8],[18],[28] 8,843  
Investment, Identifier [Axis]: BOND BRAND LOYALTY ULC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,843 [18],[28] $ 8,865
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 8,865  
Fair Value, ending balance [8],[18],[28] $ 8,843  
Investment, Identifier [Axis]: BOND BRAND LOYALTY ULC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000 [16],[18],[19],[28] 1,000 [17],[20],[21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[29] $ 799  
Fair Value, ending balance [8],[18],[19],[28] 799  
Investment, Identifier [Axis]: BOND BRAND LOYALTY ULC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 800 [13],[18],[28] $ 800 [21],[27],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[27],[29] 800  
Fair Value, ending balance [8],[13],[18],[28] 800  
Investment, Identifier [Axis]: BP LOENBRO HOLDINGS INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 743 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 743  
Investment, Identifier [Axis]: BP LOENBRO HOLDINGS INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [24] 11,666  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[24] 11,666  
Investment, Identifier [Axis]: BP LOENBRO HOLDINGS INC., First Lien 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   9,553
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,553  
Investment, Identifier [Axis]: BP LOENBRO HOLDINGS INC., First Lien 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   2,188
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,188  
Investment, Identifier [Axis]: BP LOENBRO HOLDINGS INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 330 [13] $ 330 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 330  
Fair Value, ending balance [8],[13] $ 330  
Investment, Identifier [Axis]: BRANDNER DESIGN, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 27,000 [16],[18],[19],[30] 27,000 [17],[20],[21],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[31] $ 0  
Fair Value, ending balance [8],[18],[19],[30] 0  
Investment, Identifier [Axis]: BRANDNER DESIGN, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,750 [30] $ 8,750 [31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] 7,437  
Fair Value, ending balance [8],[30] 7,000  
Investment, Identifier [Axis]: BRANDNER DESIGN, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 100 [13],[30] 100 [27],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27],[31] 85  
Fair Value, ending balance [8],[13],[30] 80  
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 125 [18],[19] $ 65 [20],[21],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[27] 65  
Fair Value, ending balance [8],[18],[19] $ 125  
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC, Series A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,131,579 [16],[18],[19] 1,131,579 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,704  
Fair Value, ending balance [8],[18],[19] $ 1,597  
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC, Series C Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 89,335 [16],[18],[19] 89,335 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 232  
Fair Value, ending balance [8],[18],[19] $ 146  
Investment, Identifier [Axis]: BROAD SKY NETWORKS LLC, Series D Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 93,790 [16],[18],[19] 93,790 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 247  
Fair Value, ending balance [8],[18],[19] 238  
Investment, Identifier [Axis]: BURNING GLASS INTERMEDIATE HOLDING COMPANY, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   $ 2,093
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,093  
Investment, Identifier [Axis]: BURNING GLASS INTERMEDIATE HOLDING COMPANY, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,093  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 2,093  
Investment, Identifier [Axis]: BURNING GLASS INTERMEDIATE HOLDING COMPANY, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 217 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 217  
Investment, Identifier [Axis]: Brandner Design, LLC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 27,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: Brandner Design, LLC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,750  
Amount of Interest or Dividends Credited in Income 344  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 7,437  
Gross Additions 6  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (443)  
Fair Value, ending balance 7,000  
Investment, Identifier [Axis]: Brandner Design, LLC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 100  
Amount of Interest or Dividends Credited in Income 6  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 85  
Gross Additions 1  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (6)  
Fair Value, ending balance 80  
Investment, Identifier [Axis]: C&M CONVEYOR, INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,500 [25] 6,500 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 6,500  
Fair Value, ending balance [8],[25] 6,500  
Investment, Identifier [Axis]: C&M CONVEYOR, INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,500 [25] 6,500 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 6,500  
Fair Value, ending balance [8],[25] 6,500  
Investment, Identifier [Axis]: C&M CONVEYOR, INC., First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,810 [25] 7,810 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 7,810  
Fair Value, ending balance [8],[25] 7,810  
Investment, Identifier [Axis]: C&M CONVEYOR, INC., First Lien - Term Loan D    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,810 [25] 7,810 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 7,810  
Fair Value, ending balance [8],[25] 7,810  
Investment, Identifier [Axis]: CADMIUM, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,052 7,994
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,802  
Fair Value, ending balance [8] 7,859  
Investment, Identifier [Axis]: CADMIUM, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 615 $ 615
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 601  
Fair Value, ending balance [8] $ 601  
Investment, Identifier [Axis]: CAMPANY ROOF MAINTENANCE, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 2,951.56  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 441  
Investment, Identifier [Axis]: CAMPANY ROOF MAINTENANCE, LLC, Class A units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   2,951.56
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 441  
Investment, Identifier [Axis]: CAMPANY ROOF MAINTENANCE, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,998 $ 15,353
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,739  
Fair Value, ending balance [8] 14,143  
Investment, Identifier [Axis]: CAMPANY ROOF MAINTENANCE, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [14],[16],[18],[19] 1,000,000 [15],[17],[20],[21],[32]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21],[32] 1,805  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14],[18],[19] $ 1,805  
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Class B Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [13],[14],[16],[18],[19] 500,000 [15],[17],[20],[21],[27],[32]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21],[27],[32] 797  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[13],[14],[18],[19] 797  
Investment, Identifier [Axis]: CATBIRD NYC, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,477 [14] $ 14,700 [15]
Amount of Interest or Dividends Credited in Income 438  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 14,700  
Gross Additions 18  
Gross Reductions (223)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (18)  
Fair Value, ending balance [8],[14] 14,477  
Investment, Identifier [Axis]: CATBIRD NYC, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] $ 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: CATBIRD NYC, LLC. Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 9  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 5  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (5)  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: CAVALIER BUYER, INC., Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 871,972.67 [16],[18],[19] 871,972.67 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 0  
Fair Value, ending balance [8],[18],[19] 0  
Investment, Identifier [Axis]: CAVALIER BUYER, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,500 [24] $ 10,500 [33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[33] 10,500  
Fair Value, ending balance [8],[24] $ 10,490  
Investment, Identifier [Axis]: CAVALIER BUYER, INC., Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 871,972.67  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 837  
Investment, Identifier [Axis]: CAVALIER BUYER, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   $ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Investment, Identifier [Axis]: CAVALIER BUYER, INC.Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   871,972.67
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,017  
Investment, Identifier [Axis]: CDC DENTAL MANAGEMENT CO., LLC, Class Y Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 1,568.7  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 1,340  
Investment, Identifier [Axis]: CDC DENTAL MANAGEMENT CO., LLC, Class Y Units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21]   1,569
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 1,065  
Investment, Identifier [Axis]: CDC DENTAL MANAGEMENT CO., LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,500 $ 5,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,390  
Fair Value, ending balance [8] 5,500  
Investment, Identifier [Axis]: CDC DENTAL MANAGEMENT CO., LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,500 5,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,390  
Fair Value, ending balance [8] 5,500  
Investment, Identifier [Axis]: CDC DENTAL MANAGEMENT CO., LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 500 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 490  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 101 [14] 101 [15],[27]
Amount of Interest or Dividends Credited in Income (7)  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 101  
Gross Additions (11)  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 11  
Fair Value, ending balance [8],[14] 101  
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 18,540 [14] $ 18,540 [15],[33]
Amount of Interest or Dividends Credited in Income 404  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[33] 18,525  
Gross Additions (126)  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 141  
Fair Value, ending balance [8],[14] $ 18,540  
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,620,670 [14],[16],[18],[19] 2,620,670 [15],[17],[20],[21]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 3,163  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14],[18],[19] 3,163  
Investment, Identifier [Axis]: CENTRAL MEDICAL SUPPLY LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,750 [13],[14],[24] $ 1,450 [15],[27]
Amount of Interest or Dividends Credited in Income 24  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 1,450  
Gross Additions 278  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 22  
Fair Value, ending balance [8],[13],[14],[24] 1,750  
Investment, Identifier [Axis]: CITYVET INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 35,000 35,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 34,965  
Fair Value, ending balance [8] 35,000  
Investment, Identifier [Axis]: COMMAND GROUP ACQUISITION, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,000 [14] $ 6,000 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 5,880  
Fair Value, ending balance [8],[14] $ 6,000  
Investment, Identifier [Axis]: COMMAND GROUP ACQUISITION, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,250,000 [14],[16],[18],[19] 1,250,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 1,038  
Fair Value, ending balance [8],[14],[18],[19] $ 1,351  
Investment, Identifier [Axis]: CRAFTY APES, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,519.07 [14],[16] 1,519.07 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 5,037  
Fair Value, ending balance [8],[14] 5,037  
Investment, Identifier [Axis]: CRAFTY APES, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14],[23] $ 0 [15],[22],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[22],[27] 0  
Fair Value, ending balance [8],[13],[14],[23] 0  
Investment, Identifier [Axis]: CRAFTY APES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,941 [14],[23] 3,833 [15],[22]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[22] 3,653  
Fair Value, ending balance [8],[14],[23] 3,755  
Investment, Identifier [Axis]: CUMBRIA CAPITAL MSO, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,001 [13] 1,050 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 1,043  
Fair Value, ending balance [8],[13] 1,001  
Investment, Identifier [Axis]: CUMBRIA CAPITAL MSO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,400 5,400
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,362  
Fair Value, ending balance [8] 5,400  
Investment, Identifier [Axis]: CUMBRIA CAPITAL MSO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 400 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 397  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: Command Group Acquisition, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,000  
Amount of Interest or Dividends Credited in Income 186  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,880  
Gross Additions 5  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 115  
Fair Value, ending balance $ 6,000  
Investment, Identifier [Axis]: Command Group Acquisition, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,250,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 1,038  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 313  
Fair Value, ending balance $ 1,351  
Investment, Identifier [Axis]: Crafty Apes, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,519.07  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,037  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 5,037  
Investment, Identifier [Axis]: Crafty Apes, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: Crafty Apes, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,941  
Amount of Interest or Dividends Credited in Income 123  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,653  
Gross Additions 123  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (21)  
Fair Value, ending balance $ 3,755  
Investment, Identifier [Axis]: DAMOTECH INC., Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,127 [16],[18],[19],[28] 1,127 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 2,738  
Fair Value, ending balance [8],[18],[19],[28] 3,003  
Investment, Identifier [Axis]: DAMOTECH INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,000 [18],[28] $ 3,000 [21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[29] 3,000  
Fair Value, ending balance [8],[18],[28] 3,000  
Investment, Identifier [Axis]: DAMOTECH INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,100 [18],[28] 5,100 [21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[29] 5,100  
Fair Value, ending balance [8],[18],[28] 5,100  
Investment, Identifier [Axis]: DAMOTECH INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,100 [18],[28] $ 5,100 [21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[29] 5,100  
Fair Value, ending balance [8],[18],[28] $ 5,100  
Investment, Identifier [Axis]: DAMOTECH INC., Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,127 [16],[18],[19],[28] 1,127 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,376  
Fair Value, ending balance [8],[18],[19],[28] 1,416  
Investment, Identifier [Axis]: DAMOTECH INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[18],[28] $ 0 [21],[27],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[27],[29] 0  
Fair Value, ending balance [8],[13],[18],[28] $ 0  
Investment, Identifier [Axis]: DELPHI LENDER HOLDCO LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 254 [16] 254 [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 0  
Fair Value, ending balance [8] $ 0  
Investment, Identifier [Axis]: DRIVE LINE SERVICE OF PORTLAND, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,000  
Fair Value, ending balance [8],[18],[19] 1,000  
Investment, Identifier [Axis]: DRIVE LINE SERVICE OF PORTLAND, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,900 $ 8,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,919  
Fair Value, ending balance [8] 7,821  
Investment, Identifier [Axis]: DRIVE LINE SERVICE OF PORTLAND, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 250,000 [14],[16],[18],[19] 250,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 317  
Fair Value, ending balance [8],[14],[18],[19] $ 317  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Class B Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 5,435,211.03 [14],[16],[18],[19] 5,435,211.03 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] $ 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Class C Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 255,984.22 [14],[16],[18],[19] 255,984.22 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] $ 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,500,000 [14],[16],[18],[19] 2,500,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] 0  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,910 [14] $ 4,766 [15]
Amount of Interest or Dividends Credited in Income 145  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 4,766  
Gross Additions 145  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (1)  
Fair Value, ending balance [8],[14] 4,910  
Investment, Identifier [Axis]: DYNAMIC COMMUNITIES, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,985 [14] 4,985 [15]
Amount of Interest or Dividends Credited in Income 163  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 4,985  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14] $ 4,985  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Class A Preferred units    
Schedule of Investments [Line Items]    
Shares (in shares) 250,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 317  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 317  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Class B Preferred units    
Schedule of Investments [Line Items]    
Shares (in shares) 5,435,211.03  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Class C Preferred units    
Schedule of Investments [Line Items]    
Shares (in shares) 255,984.22  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Dynamic Communities, LLC, Common units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,500,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: EDGE AUTONOMY HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   17,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 17,500  
Investment, Identifier [Axis]: EDGE AUTONOMY HOLDINGS, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   17,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 17,500  
Investment, Identifier [Axis]: EDGE AUTONOMY HOLDINGS, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   17,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 17,500  
Investment, Identifier [Axis]: EDGE AUTONOMY HOLDINGS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Investment, Identifier [Axis]: EMERALD TECHNOLOGIES (U.S.) ACQUISITIONCO, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   3,404
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,553  
Investment, Identifier [Axis]: EMERALD TECHNOLOGIES (U.S.) ACQUISITIONCO, INC., First Lien - Term B Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,381  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] $ 2,367  
Investment, Identifier [Axis]: ENSTOA, INC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 100,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 1,000  
Investment, Identifier [Axis]: ENSTOA, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: ENSTOA, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,329  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 9,170  
Investment, Identifier [Axis]: EVEREST TRANSPORTATION SYSTEMS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,159 $ 6,159
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,312  
Fair Value, ending balance [8] $ 4,311  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 615.156 [16] 615 [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 945  
Fair Value, ending balance [8] 945  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,602 [13] $ 3,608 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 3,568  
Fair Value, ending balance [8],[13] 3,551  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,777 6,800
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 6,726  
Fair Value, ending balance [8] 6,682  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,777 6,800
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 6,726  
Fair Value, ending balance [8] 6,682  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,471 11,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,374  
Fair Value, ending balance [8] 11,310  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Promissory Note    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 385 385
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 385  
Fair Value, ending balance [8] 385  
Investment, Identifier [Axis]: EXACT BORROWER, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: FLIP ELECTRONICS, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,446,170 [16],[18],[19] 2,446,170 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,761  
Fair Value, ending balance [8],[18],[19] 1,302  
Investment, Identifier [Axis]: FMT SOLUTIONS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,750 $ 6,750
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 6,682  
Fair Value, ending balance [8] $ 6,696  
Investment, Identifier [Axis]: FOOD PHARMA SUBSIDIARY HOLDINGS, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 75,000 [16],[18],[19],[34] 75,000 [17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] $ 1,708  
Fair Value, ending balance [8],[18],[19],[34] 1,537  
Investment, Identifier [Axis]: FOODPHARMA SUBSIDIARY HOLDINGS, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,197 [24] $ 14,197
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,197  
Fair Value, ending balance [8],[24] 14,197  
Investment, Identifier [Axis]: FOODPHARMA SUBSIDIARY HOLDINGS, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,197 [24] 14,197
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,197  
Fair Value, ending balance [8],[24] 14,197  
Investment, Identifier [Axis]: FOODPHARMA SUBSIDIARY HOLDINGS, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,197 [24] $ 14,197
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,197  
Fair Value, ending balance [8],[24] $ 14,197  
Investment, Identifier [Axis]: FS VECTOR LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,280.58 [16],[18],[19],[34] 1,280.58 [17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] $ 1,585  
Fair Value, ending balance [8],[18],[19],[34] 1,585  
Investment, Identifier [Axis]: FS VECTOR LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,000 $ 15,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,000  
Fair Value, ending balance [8] 15,000  
Investment, Identifier [Axis]: FS VECTOR LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,000 15,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,000  
Fair Value, ending balance [8] 15,000  
Investment, Identifier [Axis]: FS VECTOR LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,213 7,099
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 6,105  
Fair Value, ending balance [8] 5,770  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,248 7,099
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 6,105  
Fair Value, ending balance [8] 5,799  
Investment, Identifier [Axis]: GAINS INTERMEDIATE, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 $ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 0  
Fair Value, ending balance [8] $ 0  
Investment, Identifier [Axis]: GPT INDUSTRIES, LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [14],[16],[18],[19],[34] 1,000,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 2,747  
Fair Value, ending balance [8],[14],[18],[19],[34] 2,919  
Investment, Identifier [Axis]: GPT INDUSTRIES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,831 [11],[14] $ 5,866 [12],[15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[12],[15] 5,866  
Fair Value, ending balance [8],[11],[14] 5,831  
Investment, Identifier [Axis]: GPT INDUSTRIES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] $ 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] $ 0  
Investment, Identifier [Axis]: GPT Industries, LLC Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 100  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,747  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 172  
Fair Value, ending balance 2,919  
Investment, Identifier [Axis]: GPT Industries, LLC First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,831  
Amount of Interest or Dividends Credited in Income 176  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,866  
Gross Additions 6  
Gross Reductions (35)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (6)  
Fair Value, ending balance 5,831  
Investment, Identifier [Axis]: GPT Industries, LLC Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 7  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 4  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (4)  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000 [14],[16] 1,000 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 336  
Fair Value, ending balance [8],[14] $ 336  
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 336  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 336  
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 360.06 [14],[16] 360 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 121  
Fair Value, ending balance [8],[14] $ 121  
Investment, Identifier [Axis]: GRAMMATECH, INC., Class A-1 units    
Schedule of Investments [Line Items]    
Shares (in shares) 360.06  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 121  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 121  
Investment, Identifier [Axis]: GRAMMATECH, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 375 [14] $ 563 [15]
Amount of Interest or Dividends Credited in Income 20  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 563  
Gross Additions 0  
Gross Reductions (188)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14] 375  
Investment, Identifier [Axis]: GRAMMATECH, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] 0 [15],[27]
Amount of Interest or Dividends Credited in Income 2  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Gross Additions 1  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (1)  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: GRAVITIQ LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,906 [14] 15,000 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 14,082  
Fair Value, ending balance [8],[14] 14,608  
Investment, Identifier [Axis]: GRAVITIQ LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,906 [14] 15,000 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 14,082  
Fair Value, ending balance [8],[14] 14,608  
Investment, Identifier [Axis]: GRAVITIQ LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] $ 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: GRAVITIQ LLC, Warrants (Expiration - January 17, 2032)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 1,597  
Fair Value, ending balance [8],[14],[18],[19] $ 2,192  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,000,000 [16],[18],[19] 2,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 2,466  
Fair Value, ending balance [8],[18],[19] 2,649  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 16,364 $ 10,792
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,630  
Fair Value, ending balance [8] 16,118  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Warrants (Expiration - April 2, 2035)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] 145  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Warrants (Expiration - December 18, 2034)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 26  
Fair Value, ending balance [8],[18],[19] 26  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Warrants (Expiration - February 10, 2033)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 122  
Fair Value, ending balance [8],[18],[19] 118  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Warrants (Expiration - January 24, 2034)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 68  
Fair Value, ending balance [8],[18],[19] 66  
Investment, Identifier [Axis]: GUARDIAN FLEET SERVICES, INC., Warrants (Expiration - November 30, 2033)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 68  
Fair Value, ending balance [8],[18],[19] 66  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,856 [24] 3,866
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,286  
Fair Value, ending balance [8],[24] 3,471  
Investment, Identifier [Axis]: GULF PACIFIC ACQUISITION, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 454 [13],[24] 707 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 601  
Fair Value, ending balance [8],[13],[24] 409  
Investment, Identifier [Axis]: Gravitiq LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,906  
Amount of Interest or Dividends Credited in Income 427  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 14,082  
Gross Additions 39  
Gross Reductions (93)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 580  
Fair Value, ending balance 14,608  
Investment, Identifier [Axis]: Gravitiq LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,906  
Amount of Interest or Dividends Credited in Income 501  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 14,082  
Gross Additions 37  
Gross Reductions (94)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 583  
Fair Value, ending balance 14,608  
Investment, Identifier [Axis]: Gravitiq LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 9  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 2  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (2)  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: Gravitiq LLC, Warrants    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 1,597  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 595  
Fair Value, ending balance 2,192  
Investment, Identifier [Axis]: HEAT TRAK, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,500 11,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,775  
Fair Value, ending balance [8] 9,775  
Investment, Identifier [Axis]: HEAT TRAK, LLC, First Lien - Term Loan E    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,500 $ 2,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,500  
Fair Value, ending balance [8] 2,500  
Investment, Identifier [Axis]: HEAT TRAK, LLC, Warrants (Expiration- March 28, 2035)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] 0  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: HH-INSPIRE ACQUISITION, INC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 146,065.51 [16],[18],[19] 146,065.51 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 124  
Fair Value, ending balance [8],[18],[19] 124  
Investment, Identifier [Axis]: HH-INSPIRE ACQUISITION, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,273 $ 8,259
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,408  
Fair Value, ending balance [8] 7,528  
Investment, Identifier [Axis]: HH-INSPIRE ACQUISITION, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 772 768
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 689  
Fair Value, ending balance [8] 702  
Investment, Identifier [Axis]: HYBRID PROMOTIONS, LLC, Second Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,999 [25] $ 15,999 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 15,871  
Fair Value, ending balance [8],[25] $ 15,919  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,263 [16],[18],[19] 833 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 0  
Fair Value, ending balance [8],[18],[19] 0  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 4,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 4,000  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500 [24] $ 5,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,900  
Fair Value, ending balance [8],[24] 7,500  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500 [24] $ 5,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,900  
Fair Value, ending balance [8],[24] $ 7,500  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,263 [16],[18],[19] 833 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 620  
Fair Value, ending balance [8],[18],[19] 838  
Investment, Identifier [Axis]: IGNITE VISIBILITY LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 500 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 490  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: INFOGAIN CORPORATION, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,692 $ 3,692
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,692  
Fair Value, ending balance [8] $ 3,692  
Investment, Identifier [Axis]: INFOLINKS MEDIA BUYCO, LLC, LP interest    
Schedule of Investments [Line Items]    
Ownership percent 1.67% [13],[16],[18],[19] 1.67% [17],[20],[21],[27],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[27],[32] $ 960  
Fair Value, ending balance [8],[13],[18],[19] $ 960  
Investment, Identifier [Axis]: INSTITUTES OF HEALTH, LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 100,000 [16],[18],[19] 100,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,163  
Fair Value, ending balance [8],[18],[19] 966  
Investment, Identifier [Axis]: INSTITUTES OF HEALTH, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500 $ 7,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,447  
Fair Value, ending balance [8] 7,448  
Investment, Identifier [Axis]: INSTITUTES OF HEALTH, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500 7,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,440  
Fair Value, ending balance [8] 7,440  
Investment, Identifier [Axis]: INSTITUTES OF HEALTH, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: INSURE HOMES CORPORATION, Tranche B Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 24,250 24,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 24,500  
Fair Value, ending balance [8] 24,250  
Investment, Identifier [Axis]: INW MANUFACTURING, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   1,980
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 1,819  
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,816 3,816
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,816  
Fair Value, ending balance [8] 3,816  
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, Series A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16] 1,000,000 [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 1,296  
Fair Value, ending balance [8] $ 1,083  
Investment, Identifier [Axis]: ISI ENTERPRISES, LLC, Series A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 166,667 [16] 166,667 [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 706  
Fair Value, ending balance [8] 725  
Investment, Identifier [Axis]: ISLAND PUMP AND TANK, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 12,218 $ 12,218
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 12,218  
Fair Value, ending balance [8] 12,218  
Investment, Identifier [Axis]: ISLAND PUMP AND TANK, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 12,218 12,218
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 12,218  
Fair Value, ending balance [8] 12,218  
Investment, Identifier [Axis]: ISLAND PUMP AND TANK, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 12,218 $ 12,218
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 12,218  
Fair Value, ending balance [8] $ 12,218  
Investment, Identifier [Axis]: ISLAND PUMP AND TANK, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,468,391.99 [16],[18],[19] 1,326,389.3 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 2,702  
Fair Value, ending balance [8],[18],[19] 2,909  
Investment, Identifier [Axis]: ISLAND PUMP AND TANK, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,391 [13],[24] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13],[24] $ 1,391  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Class A Membership Interest    
Schedule of Investments [Line Items]    
Ownership percent 9.25% [14],[16],[18],[19],[34] 9.25% [15],[17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21],[32] $ 8,776  
Fair Value, ending balance [8],[14],[18],[19],[34] $ 9,963  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Class A membership interest    
Schedule of Investments [Line Items]    
Ownership percent 9.25%  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 600  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 8,776  
Gross Additions  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 1,187  
Fair Value, ending balance 9,963  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13],[14] 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Delayed Draw Term Loan - A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 $ 1,484 [15]
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 1,484  
Gross Additions 0  
Gross Reductions (1,484)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Delayed Draw Term Loan - B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 1,484 [15]
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 1,484  
Gross Additions 0  
Gross Reductions (1,484)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term B Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [15]   13,356
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 13,356  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [15]   13,356
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 13,356  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan - 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,840  
Amount of Interest or Dividends Credited in Income 574  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 13,356  
Gross Additions 1,612  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (128)  
Fair Value, ending balance 14,840  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [14] 14,840  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[14] 14,840  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [14] 14,840  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[14] 14,840  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan B - 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,840  
Amount of Interest or Dividends Credited in Income 647  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 13,356  
Gross Additions 1,611  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (127)  
Fair Value, ending balance 14,840  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [14] 5,288  
Amount of Interest or Dividends Credited in Income 2  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 5,288  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14] 5,288  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,525 [14] 3,525 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 3,525  
Fair Value, ending balance [8],[14] 3,525  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Revolving loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,525  
Amount of Interest or Dividends Credited in Income 119  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,525  
Gross Additions 6  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (6)  
Fair Value, ending balance 3,525  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants (Expiration - June 21, 2033)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 11,369  
Fair Value, ending balance [8],[14],[18],[19],[34] 12,637  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants (Expiration - March 29, 2029)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 9,755  
Fair Value, ending balance [8],[14],[18],[19],[34] 10,640  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants - 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 751  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 9,755  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 885  
Fair Value, ending balance 10,640  
Investment, Identifier [Axis]: ITA HOLDINGS GROUP, LLC, Warrants - 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 593  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 11,369  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 1,268  
Fair Value, ending balance 12,637  
Investment, Identifier [Axis]: IVUEIT, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: IVUEIT, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,000 [14] $ 10,000 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 9,902  
Fair Value, ending balance [8],[14] $ 9,910  
Investment, Identifier [Axis]: IVUEIT, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,000 [14],[16],[18],[19] 2,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 2,000  
Fair Value, ending balance [8],[14],[18],[19] 2,232  
Investment, Identifier [Axis]: IVUEIT, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 250 [13],[14] $ 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] 248  
Investment, Identifier [Axis]: JACKSON HEWITT TAX SERVICE INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,000 10,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,990  
Fair Value, ending balance [8] 10,000  
Investment, Identifier [Axis]: KMS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,408 [13],[25],[30] 2,328 [26],[27],[31]
Amount of Interest or Dividends Credited in Income 83  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26],[27],[31] 2,261  
Gross Additions 83  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (56)  
Fair Value, ending balance [8],[13],[25],[30] 2,288  
Investment, Identifier [Axis]: KMS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,484 [25],[30] $ 2,407 [26],[31]
Amount of Interest or Dividends Credited in Income 77  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26],[31] 2,407  
Gross Additions 77  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (124)  
Fair Value, ending balance [8],[25],[30] $ 2,360  
Investment, Identifier [Axis]: KMS, LLC, Series A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 19,395.96 [16],[30] 19,395.96 [17],[31]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] 6,305  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[30] 6,305  
Investment, Identifier [Axis]: LAB LOGISTICS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,856 $ 7,876
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,798  
Fair Value, ending balance [8] 7,856  
Investment, Identifier [Axis]: LAB LOGISTICS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 279 [24] 279
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 276  
Fair Value, ending balance [8],[24] 279  
Investment, Identifier [Axis]: LASH OPCO, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 17,840 17,618
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 16,737  
Fair Value, ending balance [8] 16,948  
Investment, Identifier [Axis]: LASH OPCO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 877 $ 866
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 823  
Fair Value, ending balance [8] $ 833  
Investment, Identifier [Axis]: LEHR UPFITTERS, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 7,250 [16],[18],[19] 7,250 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,043  
Fair Value, ending balance [8],[18],[19] 1,500  
Investment, Identifier [Axis]: LEHR UPFITTERS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,798 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 2,779  
Investment, Identifier [Axis]: LEHR UPFITTERS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 31,737 26,557
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 26,348  
Fair Value, ending balance [8] 31,515  
Investment, Identifier [Axis]: LEHR UPFITTERS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: LGM PHARMA LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,215 4,226
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,226  
Fair Value, ending balance [8] 4,215  
Investment, Identifier [Axis]: LGM PHARMA LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,925 4,938
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,938  
Fair Value, ending balance [8] 4,925  
Investment, Identifier [Axis]: LGM PHARMA LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,811 4,823
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,770  
Fair Value, ending balance [8] 4,811  
Investment, Identifier [Axis]: LGM PHARMA LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,811 4,823
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,876  
Fair Value, ending balance [8] 4,811  
Investment, Identifier [Axis]: LGM PHARMA LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: LGM PHARMA, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19],[34] 161,825.84  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19],[34] $ 5,787  
Investment, Identifier [Axis]: LGM PHARMA, LLC, Units of Class A Common Stock    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21],[32]   161,825.84
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] 6,067  
Investment, Identifier [Axis]: LIFT BRANDS, INC., Tranche A Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,313 $ 2,426
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,422  
Fair Value, ending balance [8] 2,309  
Investment, Identifier [Axis]: LIFT BRANDS, INC., Tranche B Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 744 727
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 693  
Fair Value, ending balance [8] 709  
Investment, Identifier [Axis]: LIFT BRANDS, INC., Tranche C Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 549 $ 565
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 538  
Fair Value, ending balance [8] $ 523  
Investment, Identifier [Axis]: LIFT BRANDS, INC., shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) 1,051 [16] 1,051 [17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 263  
Fair Value, ending balance [8] $ 263  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Common units    
Schedule of Investments [Line Items]    
Shares (in shares) 203,124.99 [14],[16],[18],[19] 203,124.99 [15],[17],[20],[21]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14],[18],[19] 0  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,026  
Amount of Interest or Dividends Credited in Income 96  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 4,842  
Gross Additions 0  
Gross Reductions (12)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 106  
Fair Value, ending balance 4,936  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 12  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 701  
Gross Additions 208  
Gross Reductions (937)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 28  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Second Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,208  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC (DBA ENVOCORE), Series A Preferred units    
Schedule of Investments [Line Items]    
Shares (in shares) 208,333.33 [14],[16],[18],[19] 208,333.33 [15],[17],[20],[21]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14],[18],[19] 0  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,026 [14] $ 5,039 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 4,842  
Fair Value, ending balance [8],[14] 4,936  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] 729 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 701  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: LIGHTING RETROFIT INTERNATIONAL, LLC, Second Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,208 [14],[35] 5,208 [15],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[36] 0  
Fair Value, ending balance [8],[14],[35] 0  
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 19,422 $ 20,903
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 20,235  
Fair Value, ending balance [8] $ 18,839  
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC, LLC interest    
Schedule of Investments [Line Items]    
Ownership percent 0.42% [16],[18],[19] 0.42% [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 263  
Fair Value, ending balance [8],[18],[19] 263  
Investment, Identifier [Axis]: LIGHTNING INTERMEDIATE II, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: LKC TECHNOLOGIES, INC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   17,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 17,000  
Investment, Identifier [Axis]: LKC TECHNOLOGIES, INC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   $ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] $ 0  
Investment, Identifier [Axis]: LKC TECHNOLOGIES, INC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] $ 2,097  
Fair Value, ending balance [8],[18],[19] 2,440  
Investment, Identifier [Axis]: LKC TECHNOLOGIES, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 17,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 17,000  
Investment, Identifier [Axis]: LKC TECHNOLOGIES, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: LLFLEX, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,152 [25] $ 10,103 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 7,577  
Fair Value, ending balance [8],[25] 7,614  
Investment, Identifier [Axis]: LOGIX HOLDING COMPANY, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [37]   $ 3,555
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[37] 2,829  
Investment, Identifier [Axis]: LOGIX HOLDING COMPANY, LLC, First Lien 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,307  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 1,961  
Investment, Identifier [Axis]: LOGIX HOLDING COMPANY, LLC, First Lien 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 314  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 314  
Investment, Identifier [Axis]: MAIN LINE BRANDS LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 9,902  
Investment, Identifier [Axis]: MAIN LINE BRANDS LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: MAMMOTH BORROWCO, INC., Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,141,913.27 [16],[18],[19] 1,141,913.27 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 692  
Fair Value, ending balance [8],[18],[19] 692  
Investment, Identifier [Axis]: MAMMOTH BORROWCO, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,846 [24] $ 2,853
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,751  
Fair Value, ending balance [8],[24] 2,704  
Investment, Identifier [Axis]: MAMMOTH BORROWCO, INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,541 10,643
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,259  
Fair Value, ending balance [8] 10,014  
Investment, Identifier [Axis]: MAMMOTH BORROWCO, INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,541 10,643
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,259  
Fair Value, ending balance [8] 10,014  
Investment, Identifier [Axis]: MAMMOTH BORROWCO, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,850 [13],[24] 3,550 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 3,422  
Fair Value, ending balance [8],[13],[24] 2,707  
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 12,957 12,957
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,338  
Fair Value, ending balance [8] 10,858  
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC, Second Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,927 [35] $ 2,927
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 2,195  
Fair Value, ending balance [8],[35] $ 1,464  
Investment, Identifier [Axis]: MERCURY ACQUISITION 2021, LLC, Series A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 12,059,033 [16],[18],[19] 12,059,033 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 233  
Fair Value, ending balance [8],[18],[19] 0  
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [24] 12,988  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[24] 12,936  
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, First Lien 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   $ 8,958
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 8,958  
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, First Lien 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   5,018
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,018  
Investment, Identifier [Axis]: MICROBE FORMULAS LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,050 8,050
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,970  
Fair Value, ending balance [8] 7,978  
Investment, Identifier [Axis]: MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,050 8,050
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,970  
Fair Value, ending balance [8] 7,978  
Investment, Identifier [Axis]: MID-FLORIDA ENDODONTICS MANAGEMENT COMPANY, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MISSION CRITICAL GROUP, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MISSION CRITICAL GROUP, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,005  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 10,786  
Investment, Identifier [Axis]: MISSION CRITICAL GROUP, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 23,325 $ 22,574
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 21,446  
Fair Value, ending balance [8] $ 22,159  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 147  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,130,387.32 [16],[18],[19] 1,130,387.32 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 73  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, LLC, Class A-2 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 130,444 [16],[18],[19] 130,444 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 19  
Fair Value, ending balance [8],[18],[19] 239  
Investment, Identifier [Axis]: MUENSTER MILLING COMPANY, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 $ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 0  
Fair Value, ending balance [8] 0  
Investment, Identifier [Axis]: MUSIKER DISCOVERY PROGRAMS, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: MUSIKER DISCOVERY PROGRAMS, INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,500 11,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,397  
Fair Value, ending balance [8] 11,408  
Investment, Identifier [Axis]: MUSIKER DISCOVERY PROGRAMS, INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,500 11,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,385  
Fair Value, ending balance [8] 11,396  
Investment, Identifier [Axis]: MUSIKER DISCOVERY PROGRAMS, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,000 [13] $ 3,000 [27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27],[33] 2,952  
Fair Value, ending balance [8],[13] $ 1,984  
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, Class A-3 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 191,049.33 [16],[18],[19],[30],[34] 191,049.33 [17],[20],[21],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[31] $ 2,007  
Fair Value, ending balance [8],[18],[19],[30],[34] 2,036  
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,875 [30] $ 11,875 [31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] 11,282  
Fair Value, ending balance [8],[30] 11,281  
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,875 [30] 11,875 [31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] 9,500  
Fair Value, ending balance [8],[30] 9,500  
Investment, Identifier [Axis]: NATIONAL CREDIT CARE, LLC, Warrants (Expiration - February 25, 2035)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[31] 92  
Fair Value, ending balance [8],[18],[19],[30] 490  
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,382 7,390
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,390  
Fair Value, ending balance [8] 7,382  
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,382 7,390
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 7,390  
Fair Value, ending balance [8] 7,382  
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,118 5,124
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,124  
Fair Value, ending balance [8] 5,118  
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, First Lien - Term Loan D    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 12,899 12,914
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 12,914  
Fair Value, ending balance [8] 12,899  
Investment, Identifier [Axis]: NEUROPSYCHIATRIC HOSPITALS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,000 [13] 3,000 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 3,000  
Fair Value, ending balance [8],[13] 3,000  
Investment, Identifier [Axis]: NEW SKINNY MIXES, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 13,000 13,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 13,000  
Fair Value, ending balance [8] 13,000  
Investment, Identifier [Axis]: NEW SKINNY MIXES, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,000 [13],[24] $ 1,000 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 1,000  
Fair Value, ending balance [8],[13],[24] 2,000  
Investment, Identifier [Axis]: NINJATRADER, INC., Earnout    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] 3,457  
Investment, Identifier [Axis]: NINJATRADER, INC., Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) [17],[20],[21],[32]   2,000,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] 32,079  
Investment, Identifier [Axis]: NINJATRADER, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 46,573 $ 33,830
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 33,830  
Fair Value, ending balance [8] 46,200  
Investment, Identifier [Axis]: NINJATRADER, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] $ 0  
Investment, Identifier [Axis]: National Credit Care, LLC, Class A-3 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 191,049.33  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 24  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,007  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 29  
Fair Value, ending balance 2,036  
Investment, Identifier [Axis]: National Credit Care, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,875  
Amount of Interest or Dividends Credited in Income 145  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 11,282  
Gross Additions 254  
Gross Reductions (247)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (8)  
Fair Value, ending balance 11,281  
Investment, Identifier [Axis]: National Credit Care, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,875  
Amount of Interest or Dividends Credited in Income 146  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 9,500  
Gross Additions 273  
Gross Reductions (265)  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (8)  
Fair Value, ending balance 9,500  
Investment, Identifier [Axis]: National Credit Care, LLC, Warrants    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 92  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 398  
Fair Value, ending balance 490  
Investment, Identifier [Axis]: ONE GROUP, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: ONE GROUP, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,593 $ 9,656
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 9,656  
Fair Value, ending balance [8] $ 9,593  
Investment, Identifier [Axis]: OPCO BORROWER, LLC, shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) 1,111.11 [16],[34] 1,111.11 [17],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[32] $ 1,006  
Fair Value, ending balance [8],[34] $ 1,006  
Investment, Identifier [Axis]: OUTERBOX, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 11,008.6744 [16],[18],[19] 11,008.67 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,464  
Fair Value, ending balance [8],[18],[19] $ 1,464  
Investment, Identifier [Axis]: PAYWARD, INC., Rollover Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16],[18],[19] 687,380.75  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[18],[19] $ 11,005  
Investment, Identifier [Axis]: PIPELINE TECHNIQUE LTD., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,722 [18],[28] $ 5,972 [29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[29] 5,554  
Fair Value, ending balance [8],[18],[28] 5,682  
Investment, Identifier [Axis]: PIPELINE TECHNIQUE LTD., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,389 [13],[18],[24],[28] $ 2,389 [21],[27],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[21],[27],[29] 2,222  
Fair Value, ending balance [8],[13],[18],[24],[28] $ 2,372  
Investment, Identifier [Axis]: POOL SERVICE PARTNERS, INC., Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 10,667 [14],[16],[18],[19] 10,667 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 610  
Fair Value, ending balance [8],[14],[18],[19] 610  
Investment, Identifier [Axis]: POOL SERVICE PARTNERS, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,400 [13],[14] $ 5,400 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 5,146  
Fair Value, ending balance [8],[13],[14] 5,146  
Investment, Identifier [Axis]: POOL SERVICE PARTNERS, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,000 [14] 5,000 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 4,765  
Fair Value, ending balance [8],[14] 4,765  
Investment, Identifier [Axis]: POOL SERVICE PARTNERS, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] $ 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] $ 0  
Investment, Identifier [Axis]: Pool Service Partners, Inc., Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 10,667  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 610  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 610  
Investment, Identifier [Axis]: Pool Service Partners, Inc., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,400  
Amount of Interest or Dividends Credited in Income 107  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 5,146  
Gross Additions (55)  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 55  
Fair Value, ending balance 5,146  
Investment, Identifier [Axis]: Pool Service Partners, Inc., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 5,000  
Amount of Interest or Dividends Credited in Income 147  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 4,765  
Gross Additions 4  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (4)  
Fair Value, ending balance 4,765  
Investment, Identifier [Axis]: Pool Service Partners, Inc., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 4  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 3  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (3)  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: RED DOG OPERATIONS HOLDING COMPANY LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,244.44 [14],[16],[18],[19] 1,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 1,000  
Fair Value, ending balance [8],[14],[18],[19] 1,025  
Investment, Identifier [Axis]: RED DOG OPERATIONS HOLDING COMPANY LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,700 [14],[24] $ 7,500 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 7,425  
Fair Value, ending balance [8],[14],[24] 9,603  
Investment, Identifier [Axis]: RED DOG OPERATIONS HOLDING COMPANY LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] 0 [15],[27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Fair Value, ending balance [8],[13],[14] 0  
Investment, Identifier [Axis]: RESEARCH NOW GROUP, LLC, Warrants (Expiration - July 15, 2029)    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 0  
Fair Value, ending balance [8] 0  
Investment, Identifier [Axis]: REVO BRANDS, INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,678 10,776
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,593  
Fair Value, ending balance [8] 10,358  
Investment, Identifier [Axis]: REVO BRANDS, INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,678 10,776
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,593  
Fair Value, ending balance [8] 10,358  
Investment, Identifier [Axis]: REVO BRANDS, INC., First Lien - Term Loan C    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,678 10,776
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,581  
Fair Value, ending balance [8] 10,358  
Investment, Identifier [Axis]: REVO BRANDS, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,400 [13],[24] $ 2,700 [27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27],[33] 2,697  
Fair Value, ending balance [8],[13],[24] $ 3,298  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 16,084 [14],[16] 16,084 [15],[17]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 941  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (135)  
Fair Value, ending balance [8],[14] $ 806  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,100 [14],[16] 1,100 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 196  
Fair Value, ending balance [8],[14] $ 187  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Class A-2 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 3,364 [14],[16] 3,364 [15],[17]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 802  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (28)  
Fair Value, ending balance [8],[14] 774  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,599 [14] $ 14,598
Amount of Interest or Dividends Credited in Income 423  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,598  
Gross Additions 2  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (1)  
Fair Value, ending balance [8],[14] 14,599  
Investment, Identifier [Axis]: ROSELAND MANAGEMENT, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13],[14] $ 0 [15],[27]
Amount of Interest or Dividends Credited in Income 4  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[27] 0  
Gross Additions 1  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (1)  
Fair Value, ending balance [8],[13],[14] $ 0  
Investment, Identifier [Axis]: Red Dog Operations Holding Company LLC, Class A Preferred units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,244  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 1,000  
Gross Additions 244  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (219)  
Fair Value, ending balance 1,025  
Investment, Identifier [Axis]: Red Dog Operations Holding Company LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,700  
Amount of Interest or Dividends Credited in Income 235  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 7,425  
Gross Additions 2,181  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (3)  
Fair Value, ending balance 9,603  
Investment, Identifier [Axis]: Red Dog Operations Holding Company LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 4  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 2  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (2)  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Roseland Management, LLC, Class A-1 Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,100  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 196  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (9)  
Fair Value, ending balance $ 187  
Investment, Identifier [Axis]: Roseland Management, LLC, Class A-2 units    
Schedule of Investments [Line Items]    
Shares (in shares) 3,364  
Investment, Identifier [Axis]: SCRIP INC., Shares of Common Stock    
Schedule of Investments [Line Items]    
Shares (in shares) [16] 100  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] $ 439  
Investment, Identifier [Axis]: SCRIP INC., shares of common stock    
Schedule of Investments [Line Items]    
Shares (in shares) [17]   100
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 439  
Investment, Identifier [Axis]: SCRIP, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 17,882 $ 17,882
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 16,451  
Fair Value, ending balance [8] $ 16,094  
Investment, Identifier [Axis]: SERVERLIFT, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [16],[18],[19] 500,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 500  
Fair Value, ending balance [8],[18],[19] 898  
Investment, Identifier [Axis]: SERVERLIFT, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 16,000 $ 16,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,856  
Fair Value, ending balance [8] 16,000  
Investment, Identifier [Axis]: SERVERLIFT, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 16,000 16,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,856  
Fair Value, ending balance [8] 16,000  
Investment, Identifier [Axis]: SERVERLIFT, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 1,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] 1,000  
Investment, Identifier [Axis]: SERVERLIFT, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   $ 1,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] $ 991  
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 40,000 [16],[18],[19],[28] 40,000 [17],[20],[21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[29] $ 1,349  
Fair Value, ending balance [8],[18],[19],[28] $ 1,673  
Investment, Identifier [Axis]: SHEARWATER RESEARCH, INC., Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,200,000 [16],[18],[19],[28] 1,200,000 [17],[20],[21],[29]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[29] $ 675  
Fair Value, ending balance [8],[18],[19],[28] 730  
Investment, Identifier [Axis]: SOCIALSEO, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,125 $ 10,125
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,027  
Fair Value, ending balance [8] 10,034  
Investment, Identifier [Axis]: SOCIALSEO, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,125 10,125
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,026  
Fair Value, ending balance [8] 10,034  
Investment, Identifier [Axis]: SOCIALSEO, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 700 [13] $ 800 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 771  
Fair Value, ending balance [8],[13] $ 694  
Investment, Identifier [Axis]: SONOBI, INC., Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [14],[16],[18],[19] 500,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] $ 0  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 402,350 [16],[30] 402,350 [17],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] $ 0  
Fair Value, ending balance [8],[30] 0  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien - Superpriority Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,130 [30] $ 2,284 [31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31] 2,284  
Fair Value, ending balance [8],[30] 3,130  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien - Tranche A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [31],[36]   11,120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31],[36] 9,318  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien - Tranche A Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [30],[35] 11,120  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[30],[35] 9,474  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien - Tranche B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [31],[36]   $ 11,120
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[31],[36] 3,114  
Investment, Identifier [Axis]: SPECTRUM OF HOPE, LLC, First Lien - Tranche B Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [30],[35] 11,120  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[30],[35] $ 0  
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 750 [16],[18],[19],[34] 750 [17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] $ 1,366  
Fair Value, ending balance [8],[18],[19],[34] 1,366  
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,293 $ 4,312
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 4,312  
Fair Value, ending balance [8] 4,293  
Investment, Identifier [Axis]: SPOTLIGHT AR, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: STATINMED, LLC, Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 4,718.62 [14],[16] 4,718.62 [15],[17]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14] $ 0  
Investment, Identifier [Axis]: STATINMED, LLC, Class B Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 39,097.96 [14],[16] 39,097.96 [15],[17]
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14] 0  
Investment, Identifier [Axis]: STATINMED, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,560 [14],[35] $ 7,560 [15],[36]
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[36] 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance [8],[14],[35] 0  
Investment, Identifier [Axis]: STELLANT MIDCO, LLC, First Lien 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,771 1,776
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 1,767  
Fair Value, ending balance [8] 1,762  
Investment, Identifier [Axis]: STELLANT MIDCO, LLC, First Lien 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 786 788
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 784  
Fair Value, ending balance [8] 782  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,644 [14],[35] $ 9,644 [15],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[36] 3,761  
Fair Value, ending balance [8],[14],[35] $ 3,761  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, Preferred Units 1    
Schedule of Investments [Line Items]    
Shares (in shares) 10,502,487.46 [14],[16] 10,502,487.46 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 0  
Fair Value, ending balance [8],[14] $ 0  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, Preferred Units 2    
Schedule of Investments [Line Items]    
Shares (in shares) 2,000,000 [14],[16],[18],[19] 2,000,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 0  
Fair Value, ending balance [8],[14],[18],[19] $ 0  
Investment, Identifier [Axis]: STUDENT RESOURCE CENTER LLC, Senior Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 355,555.56 [14],[16] 355,555.56 [15],[17]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] $ 0  
Fair Value, ending balance [8],[14] 0  
Investment, Identifier [Axis]: SUPERIOR HEALTH PARENT LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: SUPERIOR HEALTH PARENT LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 17,500 17,500
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 17,378  
Fair Value, ending balance [8] 17,377  
Investment, Identifier [Axis]: SUPERIOR HEALTH PARENT LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,000 [13] $ 1,000 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 978  
Fair Value, ending balance [8],[13] $ 993  
Investment, Identifier [Axis]: SUREKAP, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 430,144.53 [16],[18],[19] 430,144.53 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,157  
Fair Value, ending balance [8],[18],[19] 909  
Investment, Identifier [Axis]: SUREKAP, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: SUREKAP, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 19,089 19,089
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 19,089  
Fair Value, ending balance [8] 18,707  
Investment, Identifier [Axis]: SUREKAP, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 19,089 19,089
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 19,089  
Fair Value, ending balance [8] 18,707  
Investment, Identifier [Axis]: SWENSONS DRIVE-IN RESTAURANTS, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,000 8,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 8,000  
Fair Value, ending balance [8] 8,000  
Investment, Identifier [Axis]: SWENSONS DRIVE-IN RESTAURANTS, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 8,000 8,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 8,000  
Fair Value, ending balance [8] 8,000  
Investment, Identifier [Axis]: SWENSONS DRIVE-IN RESTAURANTS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: Sonobi, Inc., Class A Common units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Spectrum of Hope, LLC, Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 402,350  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: Spectrum of Hope, LLC, First Lien - Superpriority Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,130  
Amount of Interest or Dividends Credited in Income 51  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,284  
Gross Additions 846  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 3,130  
Investment, Identifier [Axis]: Spectrum of Hope, LLC, First Lien - Tranche A Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,120  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 9,318  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 156  
Fair Value, ending balance 9,474  
Investment, Identifier [Axis]: Spectrum of Hope, LLC, First Lien - Tranche B Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 11,120  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,114  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (3,114)  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: Student Resource Center LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,644  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 3,761  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 3,761  
Investment, Identifier [Axis]: Student Resource Center LLC, Preferred units 1    
Schedule of Investments [Line Items]    
Shares (in shares) 355,555.56  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Student Resource Center LLC, Preferred units 2    
Schedule of Investments [Line Items]    
Shares (in shares) 10,502,487.46  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: Student Resource Center LLC, Preferred units 3    
Schedule of Investments [Line Items]    
Shares (in shares) 2,000,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance $ 0  
Investment, Identifier [Axis]: TALKNY MANAGEMENT HOLDINGS, LLC, Class A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,625,472 [14],[16],[18],[19] 1,500,000 [15],[17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15],[20],[21] $ 1,082  
Fair Value, ending balance [8],[14],[18],[19] 1,126  
Investment, Identifier [Axis]: TALKNY MANAGEMENT HOLDINGS, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500 [14] $ 7,500 [15]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[15] 7,312  
Fair Value, ending balance [8],[14] $ 7,350  
Investment, Identifier [Axis]: THE GOBEL GROUP, LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [16],[18],[19] 500,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 0  
Fair Value, ending balance [8],[18],[19] $ 0  
Investment, Identifier [Axis]: THE GOBEL GROUP, LLC, Class A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [16],[18],[19] 500,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 500  
Fair Value, ending balance [8],[18],[19] 500  
Investment, Identifier [Axis]: THE GOBEL GROUP, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,000 $ 4,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,960  
Fair Value, ending balance [8] 4,000  
Investment, Identifier [Axis]: THE GOBEL GROUP, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: THE PRODUCTO GROUP, LLC, Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,988,468.7 [16],[18],[19] 1,988,468.7 [17],[20],[21],[32]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21],[32] $ 8,841  
Fair Value, ending balance [8],[18],[19] $ 8,841  
Investment, Identifier [Axis]: TMT BHC BUYER, INC., Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 500,000 [16],[18],[19] 500,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 682  
Fair Value, ending balance [8],[18],[19] 682  
Investment, Identifier [Axis]: TMT BHC BUYER, INC., Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   $ 0
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Investment, Identifier [Axis]: TMT BHC BUYER, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 16,500 10,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 10,000  
Fair Value, ending balance [8] 16,500  
Investment, Identifier [Axis]: TMT BHC BUYER, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: TRAFERA, LLC (FKA TRINITY 3, LLC), Class A Units    
Schedule of Investments [Line Items]    
Shares (in shares) 896.43 [16],[18],[19] 896.43 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 539  
Fair Value, ending balance [8],[18],[19] 539  
Investment, Identifier [Axis]: TRAFERA, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [25] 5,550  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[25] 5,422  
Investment, Identifier [Axis]: TRAFERA, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [26]   $ 5,575
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 5,525  
Investment, Identifier [Axis]: TRU FRAGRANCE & BEAUTY LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,000 6,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 5,943  
Fair Value, ending balance [8] 6,000  
Investment, Identifier [Axis]: TRU FRAGRANCE & BEAUTY LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,061 15,099
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,099  
Fair Value, ending balance [8] 15,061  
Investment, Identifier [Axis]: TRU FRAGRANCE & BEAUTY LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,061 $ 15,099
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 15,099  
Fair Value, ending balance [8] $ 15,061  
Investment, Identifier [Axis]: TRU FRAGRANCE & BEAUTY LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19],[34] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,276  
Fair Value, ending balance [8],[18],[19],[34] 1,276  
Investment, Identifier [Axis]: TRU FRAGRANCE & BEAUTY LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 1,800 [13],[24] $ 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13],[24] $ 1,800  
Investment, Identifier [Axis]: TalkNY Management Holdings, LLC, Class A-1 Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,625,472  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 1,082  
Gross Additions 90  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (46)  
Fair Value, ending balance 1,126  
Investment, Identifier [Axis]: TalkNY Management Holdings, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 7,500  
Amount of Interest or Dividends Credited in Income 223  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 7,312  
Gross Additions 5  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 33  
Fair Value, ending balance 7,350  
Investment, Identifier [Axis]: U.S. TELEPACIFIC CORP., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,585 2,547
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 1,019  
Fair Value, ending balance [8] 1,034  
Investment, Identifier [Axis]: U.S. TELEPACIFIC CORP., Third Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 230 230
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 58  
Fair Value, ending balance [8] 58  
Investment, Identifier [Axis]: UPS INTERMEDIATE, LLC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 9,900 [25] 9,925 [26]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[26] 9,528  
Fair Value, ending balance [8],[25] 9,702  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC, First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   $ 14,800
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] $ 14,800  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Class D-3 LP Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,000,000 [16],[18],[19] 1,000,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 1,592  
Fair Value, ending balance [8],[18],[19] $ 1,445  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Class D-4 LP Units    
Schedule of Investments [Line Items]    
Shares (in shares) 211,862.61 [16],[18],[19] 211,862.61 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 319  
Fair Value, ending balance [8],[18],[19] $ 285  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., Class D-5 LP Units    
Schedule of Investments [Line Items]    
Shares (in shares) 211,465.87 [16],[18],[19] 211,465.87 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 311  
Fair Value, ending balance [8],[18],[19] 277  
Investment, Identifier [Axis]: US COURTSCRIPT HOLDINGS, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,800  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 14,800  
Investment, Identifier [Axis]: VEREGY CONSOLIDATED, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   $ 1,532
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 1,532  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   15,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,890  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   15,000
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,890  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [27]   $ 300
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] $ 269  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC., Class A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 900,000 [16],[18],[19] 900,000 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 900  
Fair Value, ending balance [8],[18],[19] 900  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC., First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 14,895  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC., First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 15,000  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 14,895  
Investment, Identifier [Axis]: VP MOVE PURCHASER, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] $ 0  
Investment, Identifier [Axis]: VTX HOLDINGS, INC., Series A Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 1,597,707 [16],[18],[19] 1,597,707 [17],[20],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[20],[21] $ 2,192  
Fair Value, ending balance [8],[18],[19] 2,192  
Investment, Identifier [Axis]: WASH & WAX HOLDINGS LLC, First Lien 1    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 6,716  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 6,716  
Investment, Identifier [Axis]: WASH & WAX HOLDINGS LLC, First Lien 2    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 4,479  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] 3,807  
Investment, Identifier [Axis]: WASH & WAX HOLDINGS LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [13] 9  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8],[13] $ 9  
Investment, Identifier [Axis]: WASH & WAX SYSTEMS LLC, Class A Common Units    
Schedule of Investments [Line Items]    
Shares (in shares) [16] 2,926  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, ending balance [8] $ 3,951  
Investment, Identifier [Axis]: WELL-FOAM, INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,716 $ 11,761
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 11,761  
Fair Value, ending balance [8] 10,716  
Investment, Identifier [Axis]: WELL-FOAM, INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 0 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 0  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 3,748 3,748
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 3,659  
Fair Value, ending balance [8] 3,730  
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, First Lien - Term Loan A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,479 14,479
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,132  
Fair Value, ending balance [8] 14,407  
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, First Lien - Term Loan B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 14,479 14,479
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 14,132  
Fair Value, ending balance [8] 14,407  
Investment, Identifier [Axis]: WINTER SERVICES OPERATIONS, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0 [13] 5,333 [27],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27],[33] 5,205  
Fair Value, ending balance [8],[13] 0  
Investment, Identifier [Axis]: ZENFOLIO INC., First Lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 19,646 19,695
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 19,695  
Fair Value, ending balance [8] 19,646  
Investment, Identifier [Axis]: ZENFOLIO INC., Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 2,500 [13] 1,500 [27]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[27] 1,500  
Fair Value, ending balance [8],[13] 2,500  
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, DIP Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [33]   878
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[33] 878  
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, Delayed Draw Term Loan - A    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [36],[37]   14,072
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[36],[37] 11,539  
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, Delayed Draw Term Loan - B    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments [36],[37]   3,527
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5],[36],[37] 2,892  
Investment, Identifier [Axis]: ZIPS CAR WASH, LLC, Roll Up Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments   $ 1,536
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance [5] 1,536  
Investment, Identifier [Axis]: iVueit, LLC, Delayed Draw Term Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 0  
Amount of Interest or Dividends Credited in Income 13  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 0  
Fair Value, ending balance 0  
Investment, Identifier [Axis]: iVueit, LLC, First lien    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 10,000  
Amount of Interest or Dividends Credited in Income 264  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 9,902  
Gross Additions 4  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 4  
Fair Value, ending balance $ 9,910  
Investment, Identifier [Axis]: iVueit, LLC, Preferred Units    
Schedule of Investments [Line Items]    
Shares (in shares) 2,000  
Principal Amount - Debt Investments $ 0  
Amount of Interest or Dividends Credited in Income 0  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 2,000  
Gross Additions 0  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) 232  
Fair Value, ending balance 2,232  
Investment, Identifier [Axis]: iVueit, LLC, Revolving Loan    
Schedule of Investments [Line Items]    
Principal Amount - Debt Investments 250  
Amount of Interest or Dividends Credited in Income 6  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair Value, beginning balance 0  
Gross Additions 251  
Gross Reductions 0  
Amount of Realized Gain/(Loss) 0  
Amount of Unrealized Gain/(Loss) (3)  
Fair Value, ending balance $ 248  
[1] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.
[2] Unless otherwise noted, all portfolio company headquarters are based in the United States.
[3] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted. All amounts are stated in U.S. Dollars.
[4] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act as investments that are neither control investments nor affiliate investments. Investments are classified as non-control/non-affiliate investments, unless otherwise noted. At March 31, 2025, the Company held $1,436.3 million of non-control/non-affiliate investments, which represented approximately 80.5% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 162.6%.
[5] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the valuation committee comprised of certain officers of the Company (the "Valuation Committee") as the valuation designee of the Board of Directors (the "Valuation Designee") pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended (the “1940 Act”), using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.
[6] All debt investments are income-producing, unless otherwise noted. Equity investments are non-income producing, unless otherwise noted. All amounts are stated in U.S. Dollars.
[7] Non-Control/Non-Affiliate investments are generally defined by the 1940 Act as investments that are neither control investments nor affiliate investments. Investments are classified as non-control/non-affiliate investments, unless otherwise noted. At June 30, 2025, the Company held $1,449.5 million of non-control/non-affiliate investments, which represented approximately 81.4% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 158.1%.
[8] The Company's investment portfolio is comprised entirely of debt and equity securities of privately held companies for which quoted prices falling within the categories of Level 1 and Level 2 inputs are not readily available. Therefore, the Company values all of its portfolio investments at fair value, as determined in good faith by the valuation committee comprised of certain officers of the Company (the "Valuation Committee") as the valuation designee of the Board of Directors (the "Valuation Designee") pursuant to Rule 2a-5 under the Investment Company Act of 1940, as amended (the “1940 Act”), using significant unobservable Level 3 inputs. Refer to Note 4 - Fair Value Measurements for further discussion.
[9] Equity ownership may be held in shares or units of a company that is either wholly owned by the portfolio company or under common control by the same parent company to the portfolio company.
[10] Unless otherwise noted, all portfolio company headquarters are based in the United States.
[11] The investment is structured as a first lien first out term loan.
[12] The investment is structured as a first lien first out term loan.
[13] The investment has an unfunded commitment as of June 30, 2025. Refer to Note 11 - Commitments and Contingencies for further discussion.
[14] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At June 30, 2025, the Company held $276.8 million of affiliate investments, which represented approximately 15.6% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 30.2%.
[15] Affiliate investments are generally defined by the 1940 Act as investments in which between 5% and 25% of the voting securities are owned and the investments are not classified as control investments. At March 31, 2025, the Company held $292.9 million of affiliate investments, which represented approximately 16.4% of the Company’s investment assets. The fair value of these investments as a percent of net assets is 33.1%.
[16] All of the Company’s investments, the investments of Capital Southwest SPV LLC ("SPV") and the investments of SBIC I (as defined below) are pledged as collateral for the Company’s senior secured revolving credit facility, the SPV's financing credit facility or in support of the SBA-guaranteed debentures to be issued by Capital Southwest SBIC I, LP, the Company's wholly-owned subsidiary that operates as a small business investment company ("SBIC I"), respectively.
[17] All of the Company’s investments, the investments of Capital Southwest SPV LLC ("SPV") and the investments of SBIC I (as defined below) are pledged as collateral for the Company’s senior secured revolving credit facility, the SPV's financing credit facility or in support of the SBA-guaranteed debentures to be issued by Capital Southwest SBIC I, LP, the Company's wholly-owned subsidiary that operates as a small business investment company ("SBIC I"), respectively.
[18] Indicates assets that are not considered "qualifying assets" under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. As of June 30, 2025, approximately 9.2% of the Company's total assets (at fair value) were non-qualifying assets.
[19] Investment is held through a wholly-owned taxable subsidiary that has elected to be treated as a corporation for U.S. federal income tax purposes. Refer to Note 1 - Organization and Basis for Presentation for further discussion.
[20] Investment is held through a wholly-owned taxable subsidiary that has elected to be treated as a corporation for U.S. federal income tax purposes. Refer to Note 1 - Organization and Basis for Presentation for further discussion.
[21] Indicates assets that are not considered "qualifying assets" under Section 55(a) of the 1940 Act. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. As of March 31, 2025, approximately 10.0% of the Company's total assets (at fair value) were non-qualifying assets.
[22] The investment is structured as a first lien last out term loan.
[23] The investment is structured as a first lien last out term loan.
[24] The rate presented represents a weighted average rate for borrowings under the facility as of June 30, 2025.
[25] The investment is structured as a split lien term loan, which provides the Company with a first lien priority on certain assets of the obligor and a second lien priority on different assets of the obligor.
[26] The investment is structured as a split lien term loan, which provides the Company with a first lien priority on certain assets of the obligor and a second lien priority on different assets of the obligor.
[27] The investment has an unfunded commitment as of March 31, 2025. Refer to Note 11 - Commitments and Contingencies for further discussion.
[28] Portfolio company headquarters are located outside of the United States.
[29] Portfolio company headquarters are located outside of the United States.
[30] Control investments are generally defined by the 1940 Act as investments in which the Company owns more than 25% of the voting securities or has greater than 50% representation on its board. At June 30, 2025, the Company held $53.9 million of control investments, which represented approximately 3.0% of the Company's investment assets. The fair value of these investments as a percent of net assets is 5.9%. In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, the Company must determine if its unconsolidated subsidiaries are considered "significant subsidiaries." As of June 30, 2025, there were no unconsolidated subsidiaries that are considered "significant subsidiaries."
[31] Control investments are generally defined by the 1940 Act as investments in which the Company owns more than 25% of the voting securities or has greater than 50% representation on its board. At March 31, 2025, the Company held $56.1 million of control investments, which represented approximately 3.1% of the Company's investment assets. The fair value of these investments as a percent of net assets is 6.3%. In accordance with Rules 3-09 and 4-08(g) of Regulation S-X, the Company must determine if its unconsolidated subsidiaries are considered "significant subsidiaries." As of March 31, 2025, there were no unconsolidated subsidiaries that are considered "significant subsidiaries."
[32] Income producing through dividends or distributions.
[33] The rate presented represents a weighted average rate for borrowings under the facility as of March 31, 2025.
[34] Income producing through dividends or distributions.
[35] Investment is on non-accrual status as of June 30, 2025, meaning the Company has ceased to recognize interest income on the investment.
[36] Investment is on non-accrual status as of March 31, 2025, meaning the Company has ceased to recognize interest income on the investment.
[37] Maturity date is under on-going negotiations with the portfolio company and other lenders, if applicable.