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Consolidated Schedule of Investments - Schedule Of Investments (Parenthetical) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Percent of net assets 169.30% [1] 156.50% [2]
Percent of non-qualifying assets 16.90% 22.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 3,094,065,000  
Fair value at ending balance $ 4,479,835,000 $ 3,094,065,000
CPCF BPCC LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ownership percentage 9.10% [3],[4],[5],[6] 9.10% [7],[8],[9],[10]
Thompson Rivers LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ownership percentage 6.30% [3],[4],[5],[6] 6.30% [7],[8],[9],[11]
Waccamaw River, LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Ownership percentage 20.00% [3],[4],[5],[6] 20.00% [7],[8],[9],[10]
Line of Credit | BNPP Revolving Credit Facility | Revolving Credit Facility    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Line of credit facility, maximum borrowing capacity $ 800,000,000.0  
Affiliate investments    
Percent of net assets 10.70% [1],[5] 13.80% [2],[9]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 273,758,000 [9] $ 271,121,000
Gross Additions 22,539,000 [12] 37,406,000 [13]
Gross Reductions (18,937,000) [14] (24,314,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 3,000 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 5,329,000 (10,455,000)
Fair value at ending balance 282,692,000 [5] 273,758,000 [9]
Amount of Interest or Dividends Credited to Income 21,652,000 [16] 30,448,000 [17]
Affiliate investments | Biolam Group    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [18] 0  
Gross Additions [12],[18] 3,355,000  
Gross Reductions [14],[18] (55,000)  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [18] 3,000  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [18] 1,274,000  
Fair value at ending balance [18] 4,577,000 0
Interest And Dividend Income (Expense), Securities, Operating [16],[18] (14,000)  
Affiliate investments | Coastal Marina Holdings, LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] 19,946,000 17,338,000
Gross Additions 52,000 [12],[18] 3,025,000 [13],[19]
Gross Reductions 0 [14],[18] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 [18] 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,581,000 [18] (417,000) [19]
Fair value at ending balance 21,579,000 [18] 19,946,000 [19]
Amount of Interest or Dividends Credited to Income 778,000 [16],[18] 1,070,000 [17],[19]
Affiliate investments | CPCF BPCC LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance 8,889,000 7,763,000
Gross Additions 0 [12] 1,519,000 [13]
Gross Reductions (8,706,000) [14] (212,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (175,000) (181,000)
Fair value at ending balance 8,000 8,889,000
Amount of Interest or Dividends Credited to Income 236,000 [16] 1,236,000 [17]
Affiliate investments | Eclipse Business Capital, LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] 106,935,000 110,041,000
Gross Additions 2,147,000 [12],[18] 19,573,000 [13],[19]
Gross Reductions (4,300,000) [14],[18] (16,300,000) [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 [18] 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,865,000 [18] (6,379,000) [19]
Fair value at ending balance 106,647,000 [18] 106,935,000 [19]
Amount of Interest or Dividends Credited to Income 9,523,000 [16],[18] 11,319,000 [17],[19]
Affiliate investments | Rocade Holdings LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] 124,398,000 115,205,000
Gross Additions 16,985,000 [12],[18] 13,289,000 [13],[19]
Gross Reductions 0 [14],[18] (3,337,000) [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 [18] 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,210,000 [18] (759,000) [19]
Fair value at ending balance 142,593,000 [18] 124,398,000 [19]
Amount of Interest or Dividends Credited to Income 10,384,000 [16],[18] 13,289,000 [17],[19]
Affiliate investments | Thompson Rivers LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance 2,860,000 5,304,000
Gross Additions 0 [12] 0 [13]
Gross Reductions (951,000) [14] (2,378,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (54,000) (66,000)
Fair value at ending balance 1,855,000 2,860,000
Amount of Interest or Dividends Credited to Income 0 [16] 0 [17]
Affiliate investments | Waccamaw River, LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance 10,730,000 15,470,000
Gross Additions 0 [12] 0 [13]
Gross Reductions (4,925,000) [14] (2,087,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (372,000) (2,653,000)
Fair value at ending balance 5,433,000 10,730,000
Amount of Interest or Dividends Credited to Income $ 745,000 [16] $ 3,534,000 [17]
Control investments    
Percent of net assets 1.30% [1],[20] 0.40% [2],[21]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 7,651,000 [21],[22] $ 0
Gross Additions 26,022,000 [22],[23] 7,651,000 [24]
Gross Reductions (289,000) [22],[25] 0 [26]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 [22] 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (14,000) [22] 0
Fair value at ending balance [22] 33,370,000 [20] 7,651,000 [21]
Amount of Interest or Dividends Credited to Income 1,483,000 [22],[27] $ 57,000 [28]
Investment, Identifier [Axis]: 1WorldSync, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[32],[33]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 10,672,000  
Fair value at ending balance [29],[30],[31],[32],[33]   $ 10,672,000
Interest rate [29],[30],[31],[32],[33]   9.50%
Basis spread on variable rate [29],[30],[31],[32],[33]   4.75%
Investment, Identifier [Axis]: A.T. Holdings II LTD, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[4],[6],[34],[35] 0.50% [2],[8],[10],[33],[36]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33],[36] $ 10,175,000  
Fair value at ending balance $ 9,194,000 [4],[6],[34],[35] $ 10,175,000 [8],[10],[33],[36]
Interest rate 6.70% [4],[6],[34],[35] 6.70% [8],[10],[33],[36]
Interest, pik 7.60% [4],[6],[34],[35] 7.60% [8],[10],[33],[36]
Investment, Identifier [Axis]: ABC Legal Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 5,566,000  
Interest rate [35],[37],[38],[39],[40] 8.70%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.50%  
Investment, Identifier [Axis]: ABC Legal Holdings, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (15,000)  
Interest rate [4],[35],[37],[39],[40] 8.70%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.50%  
Investment, Identifier [Axis]: AD Bidco, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[37],[38],[40],[41],[42] 0.70% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 14,438,000  
Fair value at ending balance $ 18,595,000 [35],[37],[38],[40],[41],[42] $ 14,438,000 [29],[30],[31],[33],[43]
Interest rate 9.80% [35],[37],[38],[40],[41],[42] 9.60% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [35],[37],[38],[40],[41],[42] 5.25% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: AD Bidco, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ (23,000) [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 9.80% [4],[35],[37],[40],[41] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[41] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: AG Group Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40],[44] $ 1,623,000  
Interest rate [4],[39],[40],[44] 8.40%  
Basis spread on variable rate [4],[39],[40],[44] 4.25%  
Investment, Identifier [Axis]: AP Gaming I, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,932,000  
Interest rate [40],[41],[44] 8.80%  
Basis spread on variable rate [40],[41],[44] 4.75%  
Investment, Identifier [Axis]: APC1 Holding, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 2,370,000  
Fair value at ending balance $ 2,702,000 [6],[35],[38],[40],[45] $ 2,370,000 [10],[29],[31],[33],[46]
Interest rate 7.40% [6],[35],[38],[40],[45] 8.70% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.40% [6],[35],[38],[40],[45] 5.40% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: APOG Bidco Pty Ltd, Second Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[47]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[47] $ 451,000  
Fair value at ending balance [10],[29],[31],[33],[47]   $ 451,000
Interest rate [10],[29],[31],[33],[47]   12.00%
Basis spread on variable rate [10],[29],[31],[33],[47]   7.30%
Investment, Identifier [Axis]: ASC Communications, LLC, Class A Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 516,000  
Fair value at ending balance $ 504,000 [35] $ 516,000 [33]
Investment owned, balance (in shares) 15,285.8 [35] 15,285.8 [33]
Investment, Identifier [Axis]: ASC Communications, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 2.10% [1],[35],[38],[39],[40],[41],[42] 0.20% [2],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[48] $ 3,565,000  
Fair value at ending balance $ 56,258,000 [35],[38],[39],[40],[41],[42] $ 3,565,000 [31],[32],[33],[48]
Interest rate 8.60% [35],[38],[39],[40],[41],[42] 9.40% [31],[32],[33],[48]
Basis spread on variable rate 4.50% [35],[38],[39],[40],[41],[42] 4.75% [31],[32],[33],[48]
Investment, Identifier [Axis]: ASC Communications, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ (5,000) [4],[35],[37],[39],[40] $ 0 [8],[31],[33],[43],[48]
Interest rate 8.60% [4],[35],[37],[39],[40] 9.40% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.50% [4],[35],[37],[39],[40] 4.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: ATL II MRO Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets 1.70% [1],[35],[38],[40],[41],[42] 2.30% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 45,426,000  
Fair value at ending balance $ 45,290,000 [35],[38],[40],[41],[42] $ 45,426,000 [29],[30],[31],[32],[33]
Interest rate 9.60% [35],[38],[40],[41],[42] 9.80% [29],[30],[31],[32],[33]
Basis spread on variable rate 5.25% [35],[38],[40],[41],[42] 5.25% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: ATL II MRO Holdings Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (96,000)  
Fair value at ending balance $ (67,000) [4],[35],[37],[40],[41] $ (96,000) [8],[30],[31],[33],[43]
Interest rate 9.60% [4],[35],[37],[40],[41] 9.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [4],[35],[37],[40],[41] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: AWP Group Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[4],[35],[37],[38],[39],[40],[42] 1.30% [2],[8],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[31],[33],[48] $ 24,938,000  
Fair value at ending balance $ 24,750,000 [4],[35],[37],[38],[39],[40],[42] $ 24,938,000 [8],[29],[31],[33],[48]
Interest rate 8.70% [4],[35],[37],[38],[39],[40],[42] 9.30% [8],[29],[31],[33],[48]
Basis spread on variable rate 4.50% [4],[35],[37],[38],[39],[40],[42] 4.75% [8],[29],[31],[33],[48]
Investment, Identifier [Axis]: Accelerant Holdings, Class A Convertible Preferred Equity    
Percent of net assets [2],[8],[11],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 6,347,000  
Fair value at ending balance [8],[11],[33]   $ 6,347,000
Investment owned, balance (in shares) [8],[11],[33]   5,017.5
Investment, Identifier [Axis]: Accelerant Holdings, Class B Convertible Preferred Equity    
Percent of net assets [2],[8],[11],[33]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 2,285,000  
Fair value at ending balance [8],[11],[33]   $ 2,285,000
Investment owned, balance (in shares) [8],[11],[33]   1,657.1
Investment, Identifier [Axis]: Accelerant Holdings, Common Stock    
Percent of net assets [1],[4],[49] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[49] $ 3,742,000  
Investment owned, balance (in shares) [4],[49] 279,230  
Investment, Identifier [Axis]: Accelerant Holdings, Preferred Stock    
Percent of net assets [2],[8],[11],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 5,880,000  
Fair value at ending balance [8],[11],[33]   $ 5,880,000
Investment owned, balance (in shares) [8],[11],[33]   3,182.5
Investment, Identifier [Axis]: Accelevation LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40],[42] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40],[42] $ 2,966,000  
Interest rate [35],[37],[38],[39],[40],[42] 8.60%  
Basis spread on variable rate [35],[37],[38],[39],[40],[42] 4.50%  
Investment, Identifier [Axis]: Accelevation LLC, Revolver    
Percent of net assets [1],[35],[37],[38],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 152,000  
Interest rate [35],[37],[38],[39],[40] 8.60%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.50%  
Investment, Identifier [Axis]: Acclime Holdings HK Limited, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[50] 0.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[50] $ 14,344,000  
Interest rate [6],[35],[37],[38],[40],[50] 10.50%  
Basis spread on variable rate [6],[35],[37],[38],[40],[50] 6.13%  
Investment, Identifier [Axis]: Acclime Holdings HK Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[51]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 4,795,000  
Fair value at ending balance [10],[29],[31],[33],[51]   $ 4,795,000
Interest rate [10],[29],[31],[33],[51]   10.90%
Basis spread on variable rate [10],[29],[31],[33],[51]   6.25%
Investment, Identifier [Axis]: Acclime Holdings HK Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 2,518,000  
Fair value at ending balance [10],[29],[31],[33],[51]   $ 2,518,000
Interest rate [10],[29],[31],[33],[51]   11.80%
Basis spread on variable rate [10],[29],[31],[33],[51]   6.75%
Investment, Identifier [Axis]: Acclime Holdings HK Limited, Subordinated Term Loan    
Percent of net assets [1],[6],[35],[38] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38] $ 322,000  
Interest rate [6],[35],[38] 15.00%  
Investment, Identifier [Axis]: Accurus Aerospace Corporation, Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[35],[49] $ 0 [8],[11],[33]
Investment owned, balance (in shares) 262,574 [4],[35],[49] 262,574 [8],[11],[33]
Investment, Identifier [Axis]: Accurus Aerospace Corporation, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[38],[40],[41] 0.60% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 12,624,000  
Fair value at ending balance $ 13,936,000 [35],[38],[40],[41] $ 12,624,000 [29],[30],[31],[33]
Interest rate 10.20% [35],[38],[40],[41] 10.30% [29],[30],[31],[33]
Basis spread on variable rate 5.75% [35],[38],[40],[41] 5.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Accurus Aerospace Corporation, LLC Units    
Percent of net assets [1],[4],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[49] $ 0  
Investment owned, balance (in shares) [4],[35],[49] 18,309  
Investment, Identifier [Axis]: Accurus Aerospace Corporation, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.10% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 1,061,000  
Fair value at ending balance $ 364,000 [4],[35],[37],[40],[41] $ 1,061,000 [8],[30],[31],[33],[43]
Interest rate 10.20% [4],[35],[37],[40],[41] 10.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[41] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Acogroup, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.50% [1],[6],[35],[38],[40],[45],[52] 1.00% [2],[8],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 20,107,000  
Fair value at ending balance $ 12,819,000 [6],[35],[38],[40],[45],[52] $ 20,107,000 [8],[10],[29],[31],[33],[53]
Interest rate [8],[10],[29],[31],[33],[53]   4.00%
Interest, pik [8],[10],[29],[31],[33],[53]   6.60%
Basis spread on variable rate 2.90% [6],[35],[38],[40],[45],[52] 2.90% [8],[10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Acogroup, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[52],[54] 0.00% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 70,000  
Fair value at ending balance $ 653,000 [6],[35],[38],[40],[52],[54] $ 70,000 [10],[29],[31],[33],[53]
Interest rate [10],[29],[31],[33],[53]   7.10%
Interest, pik 6.40% [6],[35],[38],[40],[52],[54] 1.80% [10],[29],[31],[33],[53]
Basis spread on variable rate 4.00% [6],[35],[38],[40],[52],[54] 4.65% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Adhefin International, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[37],[40],[45] 0.10% [2],[8],[10],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[46] $ 1,716,000  
Fair value at ending balance $ 2,309,000 [4],[6],[35],[37],[40],[45] $ 1,716,000 [8],[10],[31],[33],[43],[46]
Interest rate 7.20% [4],[6],[35],[37],[40],[45] 9.10% [8],[10],[31],[33],[43],[46]
Basis spread on variable rate 5.15% [4],[6],[35],[37],[40],[45] 5.75% [8],[10],[31],[33],[43],[46]
Investment, Identifier [Axis]: Adhefin International, Subordinated Term Loan    
Percent of net assets [2],[8],[10],[33],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33],[46] $ 326,000  
Fair value at ending balance [8],[10],[33],[46]   $ 326,000
Interest, pik [8],[10],[33],[46]   13.20%
Basis spread on variable rate [8],[10],[33],[46]   10.50%
Investment, Identifier [Axis]: Aegros Holdco 2 LTD, Common Stock    
Percent of net assets [1],[4],[6],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[49] $ 587,000  
Investment owned, balance (in shares) [4],[6],[35],[49] 889,464  
Investment, Identifier [Axis]: Aegros Holdco 2 LTD, Second Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[6],[35],[55] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[55] $ 5,309,000  
Interest, pik [4],[6],[35],[55] 13.00%  
Basis spread on variable rate [4],[6],[35],[55] 8.50%  
Investment, Identifier [Axis]: Aesthetics Australia Group Pty Ltd (Laser Clinics Australia Group), First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[56] 0.00% [2],[10],[29],[31],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 589,000  
Fair value at ending balance $ 528,000 [6],[35],[38],[40],[56] $ 589,000 [10],[29],[31],[33],[57]
Interest rate 8.20% [6],[35],[38],[40],[56] 10.90% [10],[29],[31],[33],[57]
Interest, pik [6],[35],[38],[40],[56] 4.10%  
Basis spread on variable rate 4.00% [6],[35],[38],[40],[56] 6.25% [10],[29],[31],[33],[57]
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets 0.50% [1],[35],[38],[40],[41] 0.60% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 11,524,000  
Fair value at ending balance $ 13,581,000 [35],[38],[40],[41] $ 11,524,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[38],[40],[41] 9.40% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[41] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets 0.30% [1],[35],[37],[38],[40],[41],[42] 0.60% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 11,326,000  
Fair value at ending balance $ 8,748,000 [35],[37],[38],[40],[41],[42] $ 11,326,000 [29],[30],[31],[32],[33],[43]
Interest rate 10.00% [35],[37],[38],[40],[41],[42] 10.20% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 5.75% [35],[37],[38],[40],[41],[42] 5.75% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: AirX Climate Solutions, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ (28,000) [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 10.00% [4],[35],[37],[40],[41] 10.20% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[41] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Aldinger Company, Second Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 9,999,000  
Interest, pik [4],[35] 13.50%  
Investment, Identifier [Axis]: Alix Partners, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 2,978,000  
Interest rate [39],[40],[44] 6.20%  
Basis spread on variable rate [39],[40],[44] 2.00%  
Investment, Identifier [Axis]: AlliA Insurance Brokers NV, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[54] 0.20% [2],[10],[29],[31],[33],[43],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 4,569,000  
Fair value at ending balance $ 5,485,000 [6],[35],[38],[40],[54] $ 4,569,000 [10],[29],[31],[33],[43],[53]
Interest rate 9.10% [6],[35],[38],[40],[54] 8.90% [10],[29],[31],[33],[43],[53]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[54] 5.75% [10],[29],[31],[33],[43],[53]
Investment, Identifier [Axis]: Alliant, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[39],[40],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40],[44] $ 6,972,000  
Interest rate [4],[39],[40],[44] 6.70%  
Basis spread on variable rate [4],[39],[40],[44] 2.50%  
Investment, Identifier [Axis]: Amalfi Midco, Class B Common Stock    
Percent of net assets 0.10% [1],[4],[6],[35],[49] 0.10% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 1,239,000  
Fair value at ending balance $ 2,663,000 [4],[6],[35],[49] $ 1,239,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 98,906,608 [4],[6],[35],[49] 98,906,608 [8],[10],[11],[33]
Investment, Identifier [Axis]: Amalfi Midco, Second Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 290,000  
Fair value at ending balance $ 348,000 [4],[6],[35] $ 290,000 [8],[10],[33]
Interest rate [4],[6],[35] 15.50%  
Interest, pik [8],[10],[33]   17.50%
Investment, Identifier [Axis]: Amalfi Midco, Subordinated Loan Notes    
Percent of net assets 0.20% [1],[4],[6],[35] 0.30% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 5,492,000  
Fair value at ending balance $ 6,411,000 [4],[6],[35] $ 5,492,000 [8],[10],[33]
Interest rate 2.00% [4],[6],[35] 2.00% [8],[10],[33]
Interest, pik 9.00% [4],[6],[35] 9.00% [8],[10],[33]
Investment, Identifier [Axis]: Amalfi Midco, Warrants    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 919,000  
Fair value at ending balance $ 1,065,000 [4],[6],[35],[49] $ 919,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 380,385 [4],[6],[35],[49] 380,385 [8],[10],[11],[33]
Investment, Identifier [Axis]: American Bath, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40] $ 0  
Interest rate [4],[39],[40] 9.40%  
Basis spread on variable rate [4],[39],[40] 5.25%  
Investment, Identifier [Axis]: Americo Chemical Products, LLC, Common Stock    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 354,000  
Fair value at ending balance $ 354,000 [35],[49] $ 354,000 [11],[33]
Investment owned, balance (in shares) 262,093 [35],[49] 262,093 [11],[33]
Investment, Identifier [Axis]: Americo Chemical Products, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[35],[39],[40],[42] 0.30% [2],[8],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[31],[33],[48] $ 5,361,000  
Fair value at ending balance $ 5,105,000 [4],[35],[39],[40],[42] $ 5,361,000 [8],[29],[31],[33],[48]
Interest rate 9.20% [4],[35],[39],[40],[42] 9.60% [8],[29],[31],[33],[48]
Basis spread on variable rate 5.00% [4],[35],[39],[40],[42] 5.00% [8],[29],[31],[33],[48]
Investment, Identifier [Axis]: Americo Chemical Products, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (21,000)  
Fair value at ending balance $ (15,000) [4],[35],[37],[39],[40] $ (21,000) [8],[31],[33],[43],[48]
Interest rate 9.20% [4],[35],[37],[39],[40] 9.60% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[39],[40] 5.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[58] 0.10% [2],[10],[29],[31],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 1,224,000  
Fair value at ending balance $ 1,315,000 [6],[35],[38],[40],[58] $ 1,224,000 [10],[29],[31],[33],[57]
Interest rate 8.70% [6],[35],[38],[40],[58] 10.70% [10],[29],[31],[33],[57]
Basis spread on variable rate 5.08% [6],[35],[38],[40],[58] 6.20% [10],[29],[31],[33],[57]
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.70% [1],[6],[35],[38],[40],[45] 0.30% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 6,414,000  
Fair value at ending balance $ 17,641,000 [6],[35],[38],[40],[45] $ 6,414,000 [10],[29],[31],[33],[46]
Interest rate 7.10% [6],[35],[38],[40],[45] 9.30% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.08% [6],[35],[38],[40],[45] 6.20% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 3    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[41] 0.10% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 2,138,000  
Fair value at ending balance $ 2,219,000 [6],[35],[38],[40],[41] $ 2,138,000 [10],[29],[31],[33],[53]
Interest rate 9.70% [6],[35],[38],[40],[41] 9.90% [10],[29],[31],[33],[53]
Basis spread on variable rate 5.08% [6],[35],[38],[40],[41] 6.20% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 4    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 6,951,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 6,951,000
Interest rate [10],[29],[31],[33],[53]   10.70%
Basis spread on variable rate [10],[29],[31],[33],[53]   6.95%
Investment, Identifier [Axis]: AnalytiChem Holding GmbH, First Lien Senior Secured Term Loan 5    
Percent of net assets [2],[10],[29],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 2,213,000  
Fair value at ending balance [10],[29],[31],[33],[51]   $ 2,213,000
Interest rate [10],[29],[31],[33],[51]   11.50%
Basis spread on variable rate [10],[29],[31],[33],[51]   6.20%
Investment, Identifier [Axis]: Apex Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[59] 0.10% [2],[10],[29],[31],[33],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[60] $ 1,284,000  
Fair value at ending balance $ 1,352,000 [6],[35],[38],[40],[59] $ 1,284,000 [10],[29],[31],[33],[60]
Interest rate 11.10% [6],[35],[38],[40],[59] 11.30% [10],[29],[31],[33],[60]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[59] 6.25% [10],[29],[31],[33],[60]
Investment, Identifier [Axis]: Application Boot Camp LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[41] $ 1,999,000  
Interest rate [35],[38],[41] 9.30%  
Basis spread on variable rate [35],[38],[41] 5.00%  
Investment, Identifier [Axis]: Application Boot Camp LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (11,000)  
Interest rate [4],[35],[37],[40],[41] 9.30%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.00%  
Investment, Identifier [Axis]: Application Boot Camp LLC, Subordinated Term Loan    
Percent of net assets [1],[4],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 137,000  
Interest rate [4],[35] 14.00%  
Investment, Identifier [Axis]: Application Boot Camp, LLC, Common Stock    
Percent of net assets [1],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35] $ 426,000  
Investment owned, balance (in shares) [35] 391,253  
Investment, Identifier [Axis]: Aptus 1829. GmbH, Common Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 49 [4],[6],[35],[49] 49 [8],[10],[11],[33]
Investment, Identifier [Axis]: Aptus 1829. GmbH, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 2,027,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 2,027,000
Interest rate [10],[29],[31],[33],[53]   8.40%
Basis spread on variable rate [10],[29],[31],[33],[53]   5.75%
Investment, Identifier [Axis]: Aptus 1829. GmbH, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 3,675,000  
Interest rate [6],[35],[38],[40],[54] 7.80%  
Basis spread on variable rate [6],[35],[38],[40],[54] 5.75%  
Investment, Identifier [Axis]: Aptus 1829. GmbH, Preferred Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 43,000  
Fair value at ending balance $ 71,000 [4],[6],[35],[49] $ 43,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 14 [4],[6],[35],[49] 14 [8],[10],[11],[33]
Investment, Identifier [Axis]: Apus Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[61] 0.10% [2],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 1,191,000  
Fair value at ending balance $ 1,280,000 [6],[35],[38],[40],[61] $ 1,191,000 [10],[29],[31],[33],[62]
Interest rate 9.20% [6],[35],[38],[40],[61] 10.70% [10],[29],[31],[33],[62]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[61] 5.50% [10],[29],[31],[33],[62]
Investment, Identifier [Axis]: Aquavista Watersides 2 LTD, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[61] 0.10% [2],[10],[29],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[60] $ 2,927,000  
Fair value at ending balance $ 3,147,000 [6],[35],[38],[40],[61] $ 2,927,000 [10],[29],[31],[33],[43],[60]
Interest rate 10.20% [6],[35],[38],[40],[61] 10.60% [10],[29],[31],[33],[43],[60]
Basis spread on variable rate 6.00% [6],[35],[38],[40],[61] 6.00% [10],[29],[31],[33],[43],[60]
Investment, Identifier [Axis]: Aquavista Watersides 2 LTD, Second Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[61] 0.00% [2],[8],[10],[31],[33],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[60] $ 982,000  
Fair value at ending balance $ 1,136,000 [4],[6],[35],[40],[61] $ 982,000 [8],[10],[31],[33],[60]
Interest, pik 15.10% [4],[6],[35],[40],[61] 15.70% [8],[10],[31],[33],[60]
Basis spread on variable rate 10.50% [4],[6],[35],[40],[61] 10.50% [8],[10],[31],[33],[60]
Investment, Identifier [Axis]: Arc Education, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[4],[6],[35],[37],[38],[40],[54] 0.10% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 2,868,000  
Fair value at ending balance $ 8,683,000 [4],[6],[35],[37],[38],[40],[54] $ 2,868,000 [10],[29],[31],[33],[43],[46]
Interest rate 6.00% [4],[6],[35],[37],[38],[40],[54] 9.30% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 4.00% [4],[6],[35],[37],[38],[40],[54] 5.97% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Archimede, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[6],[35],[38],[40],[45] 0.70% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 12,987,000  
Fair value at ending balance $ 14,498,000 [6],[35],[38],[40],[45] $ 12,987,000 [10],[29],[31],[33],[46]
Interest rate 9.00% [6],[35],[38],[40],[45] 9.80% [10],[29],[31],[33],[46]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[45] 6.50% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Ares Loan Funding VII, Ltd., Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41] 0.30% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 5,037,000  
Fair value at ending balance $ 5,037,000 [4],[6],[40],[41] $ 5,037,000 [8],[10],[30],[31]
Interest rate 10.60% [4],[6],[40],[41] 10.80% [8],[10],[30],[31]
Basis spread on variable rate 6.25% [4],[6],[40],[41] 6.25% [8],[10],[30],[31]
Investment, Identifier [Axis]: Argus Bidco Limited, Common Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 929 [4],[6],[35],[49] 929 [8],[10],[11],[33]
Investment, Identifier [Axis]: Argus Bidco Limited, Equity Loan Notes    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 66,000  
Fair value at ending balance $ 59,000 [4],[6],[35] $ 66,000 [8],[10],[33]
Interest, pik 10.00% [4],[6],[35] 10.00% [8],[10],[33]
Investment owned, balance (in shares) 83,120 [4],[6],[35] 83,120 [8],[10],[33]
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.20% [1],[4],[6],[35],[38],[40],[54] 0.20% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 2,969,000  
Fair value at ending balance $ 4,062,000 [4],[6],[35],[38],[40],[54] $ 2,969,000 [10],[29],[31],[33],[46]
Interest rate 6.10% [4],[6],[35],[38],[40],[54] 7.20% [10],[29],[31],[33],[46]
Interest, pik 3.20% [4],[6],[35],[38],[40],[54] 2.80% [10],[29],[31],[33],[46]
Basis spread on variable rate 4.00% [4],[6],[35],[38],[40],[54] 4.00% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[50] 0.00% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 254,000  
Fair value at ending balance $ 259,000 [6],[35],[38],[40],[50] $ 254,000 [10],[29],[30],[31],[33]
Interest rate 8.10% [6],[35],[38],[40],[50] 8.80% [10],[29],[30],[31],[33]
Interest, pik 3.20% [6],[35],[38],[40],[50] 2.80% [10],[29],[30],[31],[33]
Basis spread on variable rate 4.00% [6],[35],[38],[40],[50] 4.00% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Argus Bidco Limited, First Lien Senior Secured Term Loan 3    
Percent of net assets 0.10% [1],[4],[6],[35],[40],[61] 0.00% [2],[10],[29],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[60] $ (46,000)  
Fair value at ending balance $ 3,513,000 [4],[6],[35],[40],[61] $ (46,000) [10],[29],[31],[33],[43],[60]
Interest rate 8.00% [4],[6],[35],[40],[61] 8.90% [10],[29],[31],[33],[43],[60]
Interest, pik 3.20% [4],[6],[35],[40],[61] 2.80% [10],[29],[31],[33],[43],[60]
Basis spread on variable rate 4.00% [4],[6],[35],[40],[61] 4.00% [10],[29],[31],[33],[43],[60]
Investment, Identifier [Axis]: Argus Bidco Limited, Preferred Stock    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 66,000  
Fair value at ending balance $ 60,000 [4],[6],[35] $ 66,000 [8],[10],[33]
Interest, pik 10.00% [4],[6],[35] 10.00% [8],[10],[33]
Investment owned, balance (in shares) 83,120 [4],[6],[35] 83,120 [8],[10],[33]
Investment, Identifier [Axis]: Argus Bidco Limited, Second Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35] 0.10% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 1,554,000  
Fair value at ending balance $ 1,829,000 [4],[6],[35] $ 1,554,000 [8],[10],[33]
Interest, pik 10.50% [4],[6],[35] 10.50% [8],[10],[33]
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC), First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[38],[40],[50] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 6,203,000  
Fair value at ending balance $ 7,022,000 [35],[38],[40],[50] $ 6,203,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[38],[40],[50] 10.10% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[50] 5.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Armstrong Transport Group (Pele Buyer, LLC), Revolver    
Percent of net assets [1],[4],[35],[37],[40],[50] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[50] $ 1,000  
Interest rate [4],[35],[37],[40],[50] 9.20%  
Basis spread on variable rate [4],[35],[37],[40],[50] 5.00%  
Investment, Identifier [Axis]: Artemis Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[37],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 256,000  
Fair value at ending balance $ 472,000 [6],[35],[37],[38],[40],[45] $ 256,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.00% [6],[35],[37],[38],[40],[45] 8.00% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.00% [6],[35],[37],[38],[40],[45] 5.00% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Aspen Insurance Holdings Ltd., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[35] 0.50% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 9,312,000  
Fair value at ending balance $ 9,406,000 [4],[35] $ 9,312,000 [8],[33]
Interest rate 9.30% [4],[35] 9.30% [8],[33]
Investment, Identifier [Axis]: Astra Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 478,000  
Fair value at ending balance $ 543,000 [6],[35],[38],[40],[45] $ 478,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.50% [6],[35],[38],[40],[45] 8.50% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.50% [6],[35],[38],[40],[45] 5.50% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Astra Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[61] 0.10% [2],[10],[29],[31],[33],[43],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[62] $ 2,869,000  
Fair value at ending balance $ 3,161,000 [6],[35],[38],[40],[61] $ 2,869,000 [10],[29],[31],[33],[43],[62]
Interest rate 10.00% [6],[35],[38],[40],[61] 10.50% [10],[29],[31],[33],[43],[62]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[61] 5.75% [10],[29],[31],[33],[43],[62]
Investment, Identifier [Axis]: Asurion LLC, Second Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[39],[40],[44] 0.50% [2],[8],[31],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[48] $ 9,628,000  
Fair value at ending balance $ 9,551,000 [4],[39],[40],[44] $ 9,628,000 [8],[31],[48]
Interest rate 9.60% [4],[39],[40],[44] 9.90% [8],[31],[48]
Basis spread on variable rate 5.25% [4],[39],[40],[44] 5.25% [8],[31],[48]
Investment, Identifier [Axis]: Audio Precision, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[29],[31],[33],[46]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[46] $ 2,267,000  
Fair value at ending balance [29],[31],[33],[46]   $ 2,267,000
Interest rate [29],[31],[33],[46]   11.30%
Basis spread on variable rate [29],[31],[33],[46]   8.00%
Investment, Identifier [Axis]: Audio Precision, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[30],[31],[33]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 4,312,000  
Fair value at ending balance [29],[30],[31],[33]   $ 4,312,000
Interest rate [29],[30],[31],[33]   12.80%
Basis spread on variable rate [29],[30],[31],[33]   8.00%
Investment, Identifier [Axis]: Auxi International, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 290,000  
Fair value at ending balance $ 336,000 [6],[35],[38],[40],[45] $ 290,000 [10],[29],[31],[33],[53]
Interest rate 8.30% [6],[35],[38],[40],[45] 10.40% [10],[29],[31],[33],[53]
Basis spread on variable rate 6.25% [6],[35],[38],[40],[45] 7.25% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Avance Clinical Bidco Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[58] 0.10% [2],[10],[29],[31],[33],[43],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[57] $ 2,294,000  
Fair value at ending balance $ 1,865,000 [6],[35],[37],[38],[40],[58] $ 2,294,000 [10],[29],[31],[33],[43],[57]
Interest rate 8.10% [6],[35],[37],[38],[40],[58] 8.90% [10],[29],[31],[33],[43],[57]
Basis spread on variable rate 4.50% [6],[35],[37],[38],[40],[58] 4.50% [10],[29],[31],[33],[43],[57]
Investment, Identifier [Axis]: Aveanna Healthcare, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[6],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[40],[41],[44] $ 2,080,000  
Interest rate [4],[6],[40],[41],[44] 8.00%  
Basis spread on variable rate [4],[6],[40],[41],[44] 3.75%  
Investment, Identifier [Axis]: Azalea Buyer, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 288,000  
Fair value at ending balance $ 319,000 [4],[35],[49] $ 288,000 [8],[11],[33]
Investment owned, balance (in shares) 192,307.7 [4],[35],[49] 192,307.7 [8],[11],[33]
Investment, Identifier [Axis]: Azalea Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[39],[40],[42] 0.20% [2],[29],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[43],[48] $ 4,785,000  
Fair value at ending balance $ 4,762,000 [35],[39],[40],[42] $ 4,785,000 [29],[31],[33],[43],[48]
Interest rate 9.50% [35],[39],[40],[42] 9.90% [29],[31],[33],[43],[48]
Basis spread on variable rate 5.25% [35],[39],[40],[42] 5.25% [29],[31],[33],[43],[48]
Investment, Identifier [Axis]: Azalea Buyer, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[39],[40] $ 0 [8],[31],[33],[43],[48]
Interest rate 9.50% [4],[35],[37],[39],[40] 9.90% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.25% [4],[35],[37],[39],[40] 5.25% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Azalea Buyer, Inc., Subordinated Term Loan    
Percent of net assets 0.10% [1],[4],[35] 0.10% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 1,805,000  
Fair value at ending balance $ 1,982,000 [4],[35] $ 1,805,000 [8],[33]
Interest, pik 12.00% [4],[35] 12.00% [8],[33]
Investment, Identifier [Axis]: Azalea Topco Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 1,989,000  
Interest rate [39],[40],[44] 7.20%  
Basis spread on variable rate [39],[40],[44] 3.00%  
Investment, Identifier [Axis]: BKF Buyer, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.10% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 1,001,000  
Fair value at ending balance $ 1,069,000 [4],[35],[49] $ 1,001,000 [8],[11],[33]
Investment owned, balance (in shares) 962,792 [4],[35],[49] 962,792 [8],[11],[33]
Investment, Identifier [Axis]: BKF Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[39],[40],[42] 0.40% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 7,682,000  
Fair value at ending balance $ 7,663,000 [35],[39],[40],[42] $ 7,682,000 [29],[31],[33],[48]
Interest rate 9.20% [35],[39],[40],[42] 9.30% [29],[31],[33],[48]
Basis spread on variable rate 5.00% [35],[39],[40],[42] 5.00% [29],[31],[33],[48]
Investment, Identifier [Axis]: BKF Buyer, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (50,000)  
Fair value at ending balance $ (36,000) [4],[35],[37],[39],[40] $ (50,000) [8],[31],[33],[43],[48]
Interest rate 9.20% [4],[35],[37],[39],[40] 9.30% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[39],[40] 5.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: BNI Global, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.40% [1],[35],[38],[40],[63] 1.60% [2],[29],[31],[33],[64]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[64] $ 32,557,000  
Fair value at ending balance $ 37,124,000 [35],[38],[40],[63] $ 32,557,000 [29],[31],[33],[64]
Interest rate 7.40% [35],[38],[40],[63] 8.50% [29],[31],[33],[64]
Basis spread on variable rate 5.50% [35],[38],[40],[63] 5.50% [29],[31],[33],[64]
Investment, Identifier [Axis]: BPG Holdings IV Corp, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[4],[35],[40],[41] 1.10% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 20,932,000  
Fair value at ending balance $ 19,500,000 [4],[35],[40],[41] $ 20,932,000 [8],[30],[31],[33]
Interest rate 6.00% [4],[35],[40],[41] 10.60% [8],[30],[31],[33]
Basis spread on variable rate 2.00% [4],[35],[40],[41] 6.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: BVI Medical, Inc., Second Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[33],[46]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[46] $ 5,636,000  
Fair value at ending balance [29],[31],[33],[46]   $ 5,636,000
Interest rate [29],[31],[33],[46]   12.80%
Basis spread on variable rate [29],[31],[33],[46]   9.50%
Investment, Identifier [Axis]: Bain Capital Credit CLO 2024-5, Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 4,368,000  
Fair value at ending balance $ 4,311,000 [4],[6],[40],[41] $ 4,368,000 [8],[10],[30],[31]
Interest rate 10.50% [4],[6],[40],[41] 10.70% [8],[10],[30],[31]
Basis spread on variable rate 6.15% [4],[6],[40],[41] 6.15% [8],[10],[30],[31]
Investment, Identifier [Axis]: Bariacum S.A, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 3,624,000  
Fair value at ending balance $ 2,868,000 [6],[35],[38],[40],[45] $ 3,624,000 [10],[29],[31],[33],[53]
Interest rate 6.00% [6],[35],[38],[40],[45] 7.30% [10],[29],[31],[33],[53]
Interest, pik [6],[35],[38],[40],[45] 2.50%  
Basis spread on variable rate 4.00% [6],[35],[38],[40],[45] 4.75% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Basin Innovation Group, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[37],[38],[40],[42],[50] 0.70% [2],[29],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[43],[48] $ 13,370,000  
Fair value at ending balance $ 15,182,000 [35],[37],[38],[40],[42],[50] $ 13,370,000 [29],[31],[33],[43],[48]
Interest rate 9.00% [35],[37],[38],[40],[42],[50] 9.50% [29],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[42],[50] 5.00% [29],[31],[33],[43],[48]
Investment, Identifier [Axis]: Basin Innovation Group, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (27,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[50] $ (27,000) [8],[31],[33],[43],[48]
Interest rate 9.00% [4],[35],[37],[40],[50] 9.50% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[50] 5.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Benefit Street Partners CLO XVII, Ltd., Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 4,100,000  
Fair value at ending balance $ 4,056,000 [4],[6],[40],[41] $ 4,100,000 [8],[10],[30],[31]
Interest rate 10.50% [4],[6],[40],[41] 10.80% [8],[10],[30],[31]
Basis spread on variable rate 6.15% [4],[6],[40],[41] 6.15% [8],[10],[30],[31]
Investment, Identifier [Axis]: Benify (Bennevis AB), First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[65]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[65] $ 275,000  
Fair value at ending balance [10],[29],[31],[33],[65]   $ 275,000
Interest rate [10],[29],[31],[33],[65]   8.40%
Basis spread on variable rate [10],[29],[31],[33],[65]   5.25%
Investment, Identifier [Axis]: Beyond Risk Management, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[37],[38],[39],[40],[42] 0.40% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 7,606,000  
Fair value at ending balance $ 7,560,000 [35],[37],[38],[39],[40],[42] $ 7,606,000 [29],[30],[31],[33],[43]
Interest rate 8.80% [35],[37],[38],[39],[40],[42] 9.20% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [35],[37],[38],[39],[40],[42] 4.50% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Bidwax, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[6],[35],[38],[40],[54] 0.20% [2],[8],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 4,658,000  
Fair value at ending balance $ 5,383,000 [4],[6],[35],[38],[40],[54] $ 4,658,000 [8],[10],[29],[31],[33],[53]
Interest rate 8.30% [4],[6],[35],[38],[40],[54] 9.20% [8],[10],[29],[31],[33],[53]
Basis spread on variable rate 6.40% [4],[6],[35],[38],[40],[54] 6.40% [8],[10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Biolam Group, Common Stock    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] $ 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 1,703,014  
Investment, Identifier [Axis]: Biolam Group, Convertible Bonds    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 3,173,310  
Investment, Identifier [Axis]: Biolam Group, First Lien Senior Secured Term Loan    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [66] $ 0  
Gross Additions [12],[66] 3,355,000  
Gross Reductions [14],[66] (55,000)  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [66] 3,000  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [66] 1,274,000  
Fair value at ending balance [66] 4,577,000 $ 0
Interest And Dividend Income (Expense), Securities, Operating [16],[66] $ (14,000)  
Interest, pik [66] 12.50%  
Basis spread on variable rate [66] 4.50%  
Investment, Identifier [Axis]: Biolam Group, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[5],[6],[35],[37],[38],[40],[52],[54] 0.10% [2],[10],[29],[31],[33],[43],[53],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53],[67] $ 1,751,000  
Fair value at ending balance $ 4,577,000 [4],[5],[6],[35],[37],[38],[40],[52],[54] $ 1,751,000 [10],[29],[31],[33],[43],[53],[67]
Interest rate [10],[29],[31],[33],[43],[53],[67]   5.50%
Interest, pik 12.50% [4],[5],[6],[35],[37],[38],[40],[52],[54] 2.80% [10],[29],[31],[33],[43],[53],[67]
Basis spread on variable rate 4.50% [4],[5],[6],[35],[37],[38],[40],[52],[54] 4.25% [10],[29],[31],[33],[43],[53],[67]
Investment, Identifier [Axis]: Biolam Group, Ordinary Shares    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] $ 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 30,382,002  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock A    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 83,384  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock A2    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 27,077  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock B    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 3,058,432  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock C    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 22,307  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock O1    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 2,673,324  
Investment, Identifier [Axis]: Biolam Group, Preferred Stock O2    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 269,231  
Investment, Identifier [Axis]: Biolam Group, Warrants    
Percent of net assets [1],[4],[5],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 0  
Gross Additions [12] 0  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Fair value at ending balance 0 [4],[5],[6],[35],[38],[49] $ 0
Amount of Interest or Dividends Credited to Income [16] $ 0  
Investment owned, balance (in shares) [4],[5],[6],[35],[38],[49] 5,200,000  
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 5,724,000  
Interest rate [35],[37],[38],[39],[40] 9.70%  
Basis spread on variable rate [35],[37],[38],[39],[40] 5.50%  
Investment, Identifier [Axis]: Bishop Street Underwriters, LLC, LLC Units    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 576,000  
Investment owned, balance (in shares) [35],[49] 378,695.4  
Investment, Identifier [Axis]: Bounteous, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[35],[37],[38],[39],[40] 0.50% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 10,276,000  
Fair value at ending balance $ 10,133,000 [35],[37],[38],[39],[40] $ 10,276,000 [29],[30],[31],[33]
Interest rate 8.90% [35],[37],[38],[39],[40] 9.40% [29],[30],[31],[33]
Basis spread on variable rate 4.75% [35],[37],[38],[39],[40] 4.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Bounteous, Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (17,000)  
Interest rate [4],[35],[37],[39],[40] 8.90%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.75%  
Investment, Identifier [Axis]: Boxer Parent Company Inc., Second Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41],[44] $ 9,725,000  
Interest rate [4],[40],[41],[44] 9.90%  
Basis spread on variable rate [4],[40],[41],[44] 5.75%  
Investment, Identifier [Axis]: Breeze Aviation Group Inc, Second Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[40],[41] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 5,997,000  
Interest rate [4],[35],[40],[41] 11.60%  
Basis spread on variable rate [4],[35],[40],[41] 7.50%  
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC, Municipal Revenue Bond    
Percent of net assets 1.30% [1],[4] 1.70% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8] $ 33,778,000  
Fair value at ending balance $ 33,967,000 [4] $ 33,778,000 [8]
Interest rate 11.50% [4] 11.50% [8]
Investment, Identifier [Axis]: Bridger Aerospace Group Holdings, LLC, Preferred Stock- Series C    
Percent of net assets 0.70% [1],[4],[35] 0.90% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8] $ 17,725,000  
Fair value at ending balance $ 19,057,000 [4],[35] $ 17,725,000 [8]
Interest, pik 7.00% [4],[35] 7.00% [8]
Investment owned, balance (in shares) 17,725 [4],[35] 17,725 [8]
Investment, Identifier [Axis]: BrightSign LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[35],[38],[39],[40],[42] 0.50% [2],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[48] $ 10,366,000  
Fair value at ending balance $ 10,680,000 [35],[38],[39],[40],[42] $ 10,366,000 [31],[32],[33],[48]
Interest rate 9.80% [35],[38],[39],[40],[42] 10.20% [31],[32],[33],[48]
Basis spread on variable rate 5.50% [35],[38],[39],[40],[42] 5.50% [31],[32],[33],[48]
Investment, Identifier [Axis]: BrightSign LLC, LLC units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 979,000  
Fair value at ending balance $ 1,099,000 [35] $ 979,000 [33]
Investment owned, balance (in shares) 923,857.7 [35] 923,857.7 [33]
Investment, Identifier [Axis]: BrightSign LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 905,000  
Fair value at ending balance $ 536,000 [4],[35],[37],[39],[40] $ 905,000 [8],[31],[33],[43],[48]
Interest rate 9.80% [4],[35],[37],[39],[40] 10.20% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.50% [4],[35],[37],[39],[40] 5.50% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 3,420,000  
Interest rate [6],[35],[38],[40],[54] 7.10%  
Basis spread on variable rate [6],[35],[38],[40],[54] 5.00%  
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[43],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 539,000  
Fair value at ending balance [10],[29],[31],[33],[43],[46]   $ 539,000
Interest rate [10],[29],[31],[33],[43],[46]   8.20%
Basis spread on variable rate [10],[29],[31],[33],[43],[46]   5.00%
Investment, Identifier [Axis]: Brightpay Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 2,401,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 2,401,000
Interest rate [10],[29],[31],[33],[53]   8.60%
Interest, pik [10],[29],[31],[33],[53]   0.30%
Basis spread on variable rate [10],[29],[31],[33],[53]   5.00%
Investment, Identifier [Axis]: British Engineering Services Holdco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[6],[35],[37],[38],[40],[61] 0.40% [2],[10],[29],[31],[33],[43],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[62] $ 7,542,000  
Fair value at ending balance $ 7,738,000 [6],[35],[37],[38],[40],[61] $ 7,542,000 [10],[29],[31],[33],[43],[62]
Interest rate 8.50% [6],[35],[37],[38],[40],[61] 12.70% [10],[29],[31],[33],[43],[62]
Interest, pik [6],[35],[37],[38],[40],[61] 3.80%  
Basis spread on variable rate 4.00% [6],[35],[37],[38],[40],[61] 7.00% [10],[29],[31],[33],[43],[62]
Investment, Identifier [Axis]: Broadstone Group UK LTD, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[61] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[61] $ 3,278,000  
Interest rate [6],[35],[37],[38],[40],[61] 8.70%  
Basis spread on variable rate [6],[35],[37],[38],[40],[61] 4.75%  
Investment, Identifier [Axis]: Bucharest Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[8],[10],[31],[33],[51]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[51] $ 171,000  
Fair value at ending balance [8],[10],[31],[33],[51]   $ 171,000
Interest rate [8],[10],[31],[33],[51]   11.70%
Basis spread on variable rate [8],[10],[31],[33],[51]   6.50%
Investment, Identifier [Axis]: Bucharest Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[8],[10],[31],[33],[62]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[62] $ 760,000  
Fair value at ending balance [8],[10],[31],[33],[62]   $ 760,000
Interest rate [8],[10],[31],[33],[62]   11.70%
Basis spread on variable rate [8],[10],[31],[33],[62]   6.50%
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, LP Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 450,000  
Fair value at ending balance $ 414,000 [4],[35],[49] $ 450,000 [8],[11],[33]
Investment owned, balance (in shares) 455 [4],[35],[49] 455 [8],[11],[33]
Investment, Identifier [Axis]: Burgess Point Purchaser Corporation, Second Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.20% [2],[29],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[51] $ 4,364,000  
Fair value at ending balance $ 4,100,000 [35],[38],[40],[41] $ 4,364,000 [29],[31],[33],[51]
Interest rate 13.40% [35],[38],[40],[41] 14.20% [29],[31],[33],[51]
Basis spread on variable rate 9.00% [35],[38],[40],[41] 9.00% [29],[31],[33],[51]
Investment, Identifier [Axis]: CAi Software, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[29],[30],[31],[32],[33]   0.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[32],[33] $ 17,435,000  
Fair value at ending balance [8],[29],[30],[31],[32],[33]   $ 17,435,000
Interest rate [8],[29],[30],[31],[32],[33]   10.10%
Basis spread on variable rate [8],[29],[30],[31],[32],[33]   5.25%
Investment, Identifier [Axis]: CAi Software, LLC, Revolver    
Percent of net assets [2],[8],[30],[31],[33],[43]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 1,848,000  
Fair value at ending balance [8],[30],[31],[33],[43]   $ 1,848,000
Interest rate [8],[30],[31],[33],[43]   10.10%
Basis spread on variable rate [8],[30],[31],[33],[43]   5.25%
Investment, Identifier [Axis]: CCFF Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[37],[38],[40],[50] 0.20% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 3,117,000  
Fair value at ending balance $ 3,119,000 [35],[37],[38],[40],[50] $ 3,117,000 [29],[30],[31],[33],[43]
Interest rate 9.10% [35],[37],[38],[40],[50] 9.80% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[50] 5.25% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: CCFF Buyer, LLC, LLC Units    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 226,000  
Fair value at ending balance $ 239,000 [4],[35] $ 226,000 [8],[33]
Investment owned, balance (in shares) 224 [4],[35] 224 [8],[33]
Investment, Identifier [Axis]: CCFF Buyer, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (14,000)  
Fair value at ending balance $ (9,000) [4],[35],[37],[40],[50] $ (14,000) [8],[30],[31],[33],[43]
Interest rate 9.10% [4],[35],[37],[40],[50] 9.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[50] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: CEC Entertainment, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[41] 1.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[41] $ 34,261,000  
Interest rate [4],[35],[41] 10.00%  
Basis spread on variable rate [4],[35],[41] 6.00%  
Investment, Identifier [Axis]: CGI Parent, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.30% [1],[35],[38],[40],[41] 1.10% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 22,358,000  
Fair value at ending balance $ 34,380,000 [35],[38],[40],[41] $ 22,358,000 [29],[30],[31],[33]
Interest rate 8.80% [35],[38],[40],[41] 9.10% [29],[30],[31],[33]
Basis spread on variable rate 4.50% [35],[38],[40],[41] 4.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: CGI Parent, LLC, Preferred Stock    
Percent of net assets 0.10% [1],[4],[35],[49] 0.10% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 1,710,000  
Fair value at ending balance $ 1,909,000 [4],[35],[49] $ 1,710,000 [8],[11],[33]
Investment owned, balance (in shares) 656.9 [4],[35],[49] 656.9 [8],[11],[33]
Investment, Identifier [Axis]: CGI Parent, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[41] 9.10% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[41] 4.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: CH Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 1,744,000  
Interest rate [35],[38],[40],[41] 10.50%  
Basis spread on variable rate [35],[38],[40],[41] 6.25%  
Investment, Identifier [Axis]: CH Buyer, LLC, LLC Units    
Percent of net assets [1],[4],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[49] $ 143,000  
Investment owned, balance (in shares) [4],[35],[49] 1,387  
Investment, Identifier [Axis]: CH Buyer, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (2,000)  
Interest rate [4],[35],[37],[40],[41] 10.50%  
Basis spread on variable rate [4],[35],[37],[40],[41] 6.25%  
Investment, Identifier [Axis]: CIFC Funding 2022-VI, Ltd., Subordinated Structured Notes    
Percent of net assets 0.00% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 1,149,000  
Fair value at ending balance $ 1,132,000 [4],[6],[40],[41] $ 1,149,000 [8],[10],[30],[31]
Interest rate 10.10% [4],[6],[40],[41] 10.40% [8],[10],[30],[31]
Basis spread on variable rate 5.75% [4],[6],[40],[41] 5.75% [8],[10],[30],[31]
Investment, Identifier [Axis]: CIFC Funding 2024-IV, Ltd., Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 2,960,000  
Fair value at ending balance $ 2,905,000 [4],[6],[40],[41] $ 2,960,000 [8],[10],[30],[31]
Interest rate 10.00% [4],[6],[40],[41] 10.30% [8],[10],[30],[31]
Basis spread on variable rate 5.70% [4],[6],[40],[41] 5.70% [8],[10],[30],[31]
Investment, Identifier [Axis]: CM Acquisition Holding Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[29],[30],[31],[33]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 1,087,000  
Fair value at ending balance [29],[30],[31],[33]   $ 1,087,000
Interest rate [29],[30],[31],[33]   10.20%
Basis spread on variable rate [29],[30],[31],[33]   6.00%
Investment, Identifier [Axis]: CM Acquisition Holding Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[30],[31],[33]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 9,563,000  
Fair value at ending balance [29],[30],[31],[33]   $ 9,563,000
Interest rate [29],[30],[31],[33]   7.70%
Interest, pik [29],[30],[31],[33]   2.50%
Basis spread on variable rate [29],[30],[31],[33]   6.00%
Investment, Identifier [Axis]: CM Acquisitions Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[50] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[50] $ 10,945,000  
Interest rate [35],[38],[40],[50] 7.60%  
Interest, pik [35],[38],[40],[50] 2.50%  
Basis spread on variable rate [35],[38],[40],[50] 3.50%  
Investment, Identifier [Axis]: CMG Media Corp, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41],[44] $ 11,253,000  
Interest, pik [4],[40],[41],[44] 7.60%  
Basis spread on variable rate [4],[40],[41],[44] 3.50%  
Investment, Identifier [Axis]: CNSL 2025-1A, Subordinated Structured Notes    
Percent of net assets [1],[4] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4] $ 14,718,000  
Interest rate [4] 9.40%  
Investment, Identifier [Axis]: CPCF BPCC LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 8,889,000  
Gross Additions [12] 0  
Gross Reductions [14] (8,706,000)  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (175,000)  
Fair value at ending balance 8,000 $ 8,889,000
Amount of Interest or Dividends Credited to Income [16] $ 236,000  
Investment, Identifier [Axis]: CPCF BPCC LLC, Member Interest    
Percent of net assets 0.00% [1],[3],[4],[5],[6] 0.40% [2],[7],[8],[9],[10]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 8,889,000 [7],[8],[9],[10] $ 7,763,000
Gross Additions [13]   1,519,000
Gross Reductions [15]   (212,000)
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax   0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax   (181,000)
Fair value at ending balance $ 8,000 [3],[4],[5],[6] 8,889,000 [7],[8],[9],[10]
Amount of Interest or Dividends Credited to Income [17]   $ 1,236,000
Investment, Identifier [Axis]: CPM Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,988,000  
Interest rate [40],[41],[44] 6.90%  
Basis spread on variable rate [40],[41],[44] 2.75%  
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, 2024 LIFO Term Loan    
Percent of net assets [2],[8],[30],[31],[33]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 8,421,000  
Fair value at ending balance [8],[30],[31],[33]   $ 8,421,000
Interest, pik [8],[30],[31],[33]   14.70%
Basis spread on variable rate [8],[30],[31],[33]   10.00%
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, Common Stock    
Percent of net assets 0.10% [1],[4],[35],[49] 0.10% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 1,390,000  
Fair value at ending balance $ 2,887,000 [4],[35],[49] $ 1,390,000 [8],[11],[33]
Investment owned, balance (in shares) 42,061 [4],[35],[49] 42,061 [8],[11],[33]
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[40],[41] 0.70%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 17,876,000  
Interest rate [4],[35],[40],[41] 12.20%  
Basis spread on variable rate [4],[35],[40],[41] 7.86%  
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan    
Percent of net assets [2],[8],[30],[31],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 5,721,000  
Fair value at ending balance [8],[30],[31],[33]   $ 5,721,000
Interest, pik [8],[30],[31],[33]   14.70%
Basis spread on variable rate [8],[30],[31],[33]   10.00%
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan 1    
Percent of net assets [1],[4],[35],[40],[41] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 4,629,000  
Interest, pik [4],[35],[40],[41] 14.50%  
Basis spread on variable rate [4],[35],[40],[41] 10.00%  
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, First Out Term Loan 2    
Percent of net assets [1],[4],[35],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 1,713,000  
Interest, pik [4],[35],[40],[41] 11.50%  
Basis spread on variable rate [4],[35],[40],[41] 7.00%  
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, Last In First Out Term Loan    
Percent of net assets [1],[4],[35],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 9,392,000  
Interest, pik [4],[35],[40],[41] 14.50%  
Basis spread on variable rate [4],[35],[40],[41] 10.00%  
Investment, Identifier [Axis]: CTI Foods Holdings Co., LLC, Second Out Term Loan    
Percent of net assets 0.00% [1],[4],[35],[40],[41] 0.10% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 1,193,000  
Fair value at ending balance $ 1,321,000 [4],[35],[40],[41] $ 1,193,000 [8],[30],[31],[33]
Interest, pik 13.50% [4],[35],[40],[41] 16.70% [8],[30],[31],[33]
Basis spread on variable rate 9.00% [4],[35],[40],[41] 12.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: CW Group Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[37],[38],[40],[41] 0.20% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 4,004,000  
Fair value at ending balance $ 8,061,000 [35],[37],[38],[40],[41] $ 4,004,000 [29],[30],[31],[33]
Interest rate 8.50% [35],[37],[38],[40],[41] 9.80% [29],[30],[31],[33]
Basis spread on variable rate 4.50% [35],[37],[38],[40],[41] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: Caldwell & Gregory LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.60% [1],[35],[37],[38],[40],[41],[42] 1.90% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 37,666,000  
Fair value at ending balance $ 42,486,000 [35],[37],[38],[40],[41],[42] $ 37,666,000 [29],[30],[31],[33],[43]
Interest rate 8.80% [35],[37],[38],[40],[41],[42] 9.30% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41],[42] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Caldwell & Gregory LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (69,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ (69,000) [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[41] 9.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class A Equity    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 500,000 [4],[6],[35],[49] 500,000 [8],[10],[11],[33]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class C - Warrants    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 74,712.64 [4],[6],[35],[49] 74,712.64 [8],[10],[11],[33]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Class X Equity    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 45,604 [4],[6],[35],[49] 45,604 [8],[10],[11],[33]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Common Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 0 [8],[10],[11],[33]
Investment owned, balance (in shares) 37.65 [4],[6],[35],[49] 37.65 [8],[10],[11],[33]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[52],[68] 0.00% [2],[10],[29],[31],[33],[67],[69]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[67],[69] $ 950,000  
Fair value at ending balance $ 601,000 [6],[35],[38],[40],[52],[68] $ 950,000 [10],[29],[31],[33],[67],[69]
Interest, pik 10.30% [6],[35],[38],[40],[52],[68] 10.30% [10],[29],[31],[33],[67],[69]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[52],[68] 7.00% [10],[29],[31],[33],[67],[69]
Investment, Identifier [Axis]: Canadian Orthodontic Partners Corp., Super Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[37],[38] 0.00% [2],[10],[29],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[33],[43] $ 185,000  
Fair value at ending balance $ 257,000 [6],[35],[37],[38] $ 185,000 [10],[29],[33],[43]
Interest, pik 15.00% [6],[35],[37],[38] 15.00% [10],[29],[33],[43]
Investment, Identifier [Axis]: Caribou Holding Company, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[30],[31],[33]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 3,832,000  
Fair value at ending balance [10],[29],[30],[31],[33]   $ 3,832,000
Interest rate [10],[29],[30],[31],[33]   12.50%
Basis spread on variable rate [10],[29],[30],[31],[33]   7.64%
Investment, Identifier [Axis]: Caribou Holding Company, LLC, LLC Units    
Percent of net assets [2],[8],[10],[11],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 617,000  
Fair value at ending balance [8],[10],[11],[33]   $ 617,000
Investment owned, balance (in shares) [8],[10],[11],[33]   616,844
Investment, Identifier [Axis]: Carriage Purchaser Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[39],[40],[42] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40],[42] $ 0  
Interest rate [4],[39],[40],[42] 7.70%  
Basis spread on variable rate [4],[39],[40],[42] 3.50%  
Investment, Identifier [Axis]: Cascade Residential Services LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.80% [1],[35],[38],[40],[41] 0.50% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 9,973,000  
Fair value at ending balance $ 21,193,000 [35],[38],[40],[41] $ 9,973,000 [29],[30],[31],[33],[43]
Interest rate 10.30% [35],[38],[40],[41] 10.60% [29],[30],[31],[33],[43]
Basis spread on variable rate 6.00% [35],[38],[40],[41] 6.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Cascade Residential Services LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.10% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 1,219,000  
Fair value at ending balance $ (19,000) [4],[35],[37],[40],[41] $ 1,219,000 [8],[30],[31],[33]
Interest rate 10.30% [4],[35],[37],[40],[41] 10.60% [8],[30],[31],[33]
Basis spread on variable rate 6.00% [4],[35],[37],[40],[41] 6.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: Centralis Finco S.a.r.l., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[10],[29],[31],[33],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[46] $ 717,000  
Fair value at ending balance [8],[10],[29],[31],[33],[46]   $ 717,000
Interest rate [8],[10],[29],[31],[33],[46]   8.30%
Basis spread on variable rate [8],[10],[29],[31],[33],[46]   5.25%
Investment, Identifier [Axis]: Centralis Finco S.a.r.l., First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[4],[6],[35],[38],[40],[45] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[38],[40],[45] $ 1,455,000  
Interest rate [4],[6],[35],[38],[40],[45] 7.30%  
Basis spread on variable rate [4],[6],[35],[38],[40],[45] 5.25%  
Investment, Identifier [Axis]: Ceres Pharma NV, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 4,333,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 4,333,000
Interest rate [10],[29],[31],[33],[53]   8.90%
Basis spread on variable rate [10],[29],[31],[33],[53]   6.00%
Investment, Identifier [Axis]: Ceres Pharma NV, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 4,887,000  
Interest rate [6],[35],[38],[40],[54] 8.10%  
Basis spread on variable rate [6],[35],[38],[40],[54] 6.00%  
Investment, Identifier [Axis]: Ceres Pharma NV, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[6],[35],[37],[38],[40],[45] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[45] $ 2,310,000  
Interest rate [6],[35],[37],[38],[40],[45] 8.90%  
Basis spread on variable rate [6],[35],[37],[38],[40],[45] 7.00%  
Investment, Identifier [Axis]: CloudOne Digital Corp., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 1.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 34,034,000  
Interest rate [35],[38],[40],[41] 9.50%  
Basis spread on variable rate [35],[38],[40],[41] 5.25%  
Investment, Identifier [Axis]: CloudOne Digital Corp., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (95,000)  
Interest rate [4],[35],[37],[40],[41] 9.30%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.00%  
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, LLC Units    
Percent of net assets 0.40% [1],[5],[35],[49] 0.40% [2],[9],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 8,426,000 [9],[11],[33] $ 6,080,000
Gross Additions 0 [12] 2,776,000 [13],[19]
Gross Reductions 0 [14] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,566,000 (430,000) [19]
Fair value at ending balance 9,992,000 [5],[35],[49] 8,426,000 [9],[11],[19],[33]
Amount of Interest or Dividends Credited to Income $ 0 [16] $ 0 [17],[19]
Investment owned, balance (in shares) 1,759,051 [5],[35],[49] 1,759,051 [9],[11],[19],[33]
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Interest rate [4],[5],[35] 8.00%  
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan    
Percent of net assets [1],[4],[5],[35] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[5],[35] $ 7,931,000  
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan 1    
Percent of net assets [2],[8],[9],[33]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[9],[33] 7,885,000  
Gross Additions [12] 38,000  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 8,000  
Fair value at ending balance 7,931,000 $ 7,885,000 [8],[9],[33]
Amount of Interest or Dividends Credited to Income [16] 535,000  
Interest rate [8],[9],[33]   8.00%
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan 1    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 7,885,000 $ 7,824,000
Gross Additions [13],[19]   48,000
Gross Reductions [15],[19]   0
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [19]   0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [19]   13,000
Fair value at ending balance [19]   7,885,000
Amount of Interest or Dividends Credited to Income [17],[19]   $ 714,000
Interest rate [19]   8.00%
Investment, Identifier [Axis]: Coastal Marina Holdings, LLC, Subordinated Term Loan 2    
Percent of net assets 0.10% [1],[4],[5],[35] 0.20% [2],[8],[9],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 3,635,000 [8],[9],[33] $ 3,434,000
Gross Additions 14,000 [12] 201,000 [13],[19]
Gross Reductions 0 [14] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 7,000 0 [19]
Fair value at ending balance 3,656,000 [4],[5],[35] 3,635,000 [8],[9],[19],[33]
Amount of Interest or Dividends Credited to Income $ 243,000 [16] $ 356,000 [17],[19]
Interest rate 8.00% [4],[5],[35] 8.00% [8],[9],[19],[33]
Investment, Identifier [Axis]: Cobham Slip Rings SAS, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[41] 0.20% [2],[10],[29],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 3,091,000  
Fair value at ending balance $ 3,064,000 [6],[35],[38],[40],[41] $ 3,091,000 [10],[29],[31],[33],[51]
Interest rate 10.30% [6],[35],[38],[40],[41] 10.90% [10],[29],[31],[33],[51]
Basis spread on variable rate 6.25% [6],[35],[38],[40],[41] 6.25% [10],[29],[31],[33],[51]
Investment, Identifier [Axis]: Coherus Biosciences, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[35],[40],[41] 0.50% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 9,758,000  
Fair value at ending balance $ 9,908,000 [4],[35],[40],[41] $ 9,758,000 [8],[30],[31],[33]
Interest rate 12.00% [4],[35],[40],[41] 12.60% [8],[30],[31],[33]
Basis spread on variable rate 8.00% [4],[35],[40],[41] 8.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: Coherus Biosciences, Inc., Royalty Rights    
Percent of net assets 0.10% [1],[35] 0.70% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 14,583,000  
Fair value at ending balance $ 3,953,000 [35] $ 14,583,000 [33]
Investment owned, balance (in shares) [35] 9,065,911 [33]
Investment, Identifier [Axis]: Compass Precision, LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 154,000  
Fair value at ending balance $ 344,000 [35],[49] $ 154,000 [11],[33]
Investment owned, balance (in shares) 46,085.6 [35],[49] 460,865.6 [11],[33]
Investment, Identifier [Axis]: Compass Precision, LLC, Senior Subordinated Term Loan    
Percent of net assets 0.00% [1],[4],[35],[38] 0.00% [2],[8],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[33] $ 640,000  
Fair value at ending balance $ 653,000 [4],[35],[38] $ 640,000 [8],[29],[33]
Interest rate 11.00% [4],[35],[38] 11.00% [8],[29],[33]
Interest, pik 1.00% [4],[35],[38] 1.00% [8],[29],[33]
Investment, Identifier [Axis]: Comply365, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[35],[38],[40],[41] 1.20% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 24,120,000  
Fair value at ending balance $ 23,937,000 [35],[38],[40],[41] $ 24,120,000 [29],[31],[33],[48]
Interest rate 9.70% [35],[38],[40],[41] 9.70% [29],[31],[33],[48]
Basis spread on variable rate 5.25% [35],[38],[40],[41] 5.00% [29],[31],[33],[48]
Investment, Identifier [Axis]: Comply365, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ 0 [8],[31],[33],[43],[48]
Interest rate 9.70% [4],[35],[37],[40],[41] 9.70% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.25% [4],[35],[37],[40],[41] 5.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Connect Holdings 2, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 9,964,000  
Interest rate [40],[41],[44] 8.40%  
Basis spread on variable rate [40],[41],[44] 4.25%  
Investment, Identifier [Axis]: Consilio, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 3,786,000  
Interest rate [40],[41],[44] 8.10%  
Basis spread on variable rate [40],[41],[44] 3.75%  
Investment, Identifier [Axis]: Consolidated Communications Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[10],[31],[48]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[48] $ 6,833,000  
Fair value at ending balance [8],[10],[31],[48]   $ 6,833,000
Interest rate [8],[10],[31],[48]   8.20%
Basis spread on variable rate [8],[10],[31],[48]   3.50%
Investment, Identifier [Axis]: Contabo Finco S.A.R.L, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[46]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 10,022,000  
Fair value at ending balance [10],[29],[31],[33],[46]   $ 10,022,000
Interest rate [10],[29],[31],[33],[46]   8.20%
Basis spread on variable rate [10],[29],[31],[33],[46]   5.15%
Investment, Identifier [Axis]: Contabo FincoS.À R.L, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[45] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[45] $ 11,372,000  
Interest rate [6],[35],[38],[40],[45] 7.20%  
Basis spread on variable rate [6],[35],[38],[40],[45] 5.15%  
Investment, Identifier [Axis]: Copeland (Emerson), First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,988,000  
Interest rate [40],[41],[44] 6.40%  
Basis spread on variable rate [40],[41],[44] 2.25%  
Investment, Identifier [Axis]: Copeland (Emerson), First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[40],[41],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 6,949,000  
Interest rate [40],[41],[44] 6.40%  
Basis spread on variable rate [40],[41],[44] 2.25%  
Investment, Identifier [Axis]: Cosmelux International, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 2,533,000  
Fair value at ending balance $ 2,817,000 [6],[35],[38],[40],[45] $ 2,533,000 [10],[29],[31],[33],[46]
Interest rate 7.20% [6],[35],[38],[40],[45] 8.70% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.50% [6],[35],[38],[40],[45] 5.25% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Cosmelux International, Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[37],[40],[45] 0.00% [2],[8],[10],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[46] $ (5,000)  
Fair value at ending balance $ (11,000) [4],[6],[35],[37],[40],[45] $ (5,000) [8],[10],[31],[33],[43],[46]
Interest rate 7.20% [4],[6],[35],[37],[40],[45] 8.70% [8],[10],[31],[33],[43],[46]
Basis spread on variable rate 5.50% [4],[6],[35],[37],[40],[45] 5.25% [8],[10],[31],[33],[43],[46]
Investment, Identifier [Axis]: Coyo Uprising GmbH, Class A Units    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 249,000  
Fair value at ending balance $ 291,000 [4],[6],[35],[49] $ 249,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 531 [4],[6],[35],[49] 531 [8],[10],[11],[33]
Investment, Identifier [Axis]: Coyo Uprising GmbH, Class B Units    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 461,000  
Fair value at ending balance $ 547,000 [4],[6],[35],[49] $ 461,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 231 [4],[6],[35],[49] 231 [8],[10],[11],[33]
Investment, Identifier [Axis]: Coyo Uprising GmbH, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[6],[35],[37],[38],[40],[54] 0.50% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 10,407,000  
Fair value at ending balance $ 12,110,000 [6],[35],[37],[38],[40],[54] $ 10,407,000 [10],[29],[31],[33],[43],[46]
Interest rate 8.50% [6],[35],[37],[38],[40],[54] 10.10% [10],[29],[31],[33],[43],[46]
Interest, pik 0.30% [6],[35],[37],[38],[40],[54] 0.30% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 6.50% [6],[35],[37],[38],[40],[54] 6.50% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 9,902,000  
Interest rate [35],[38],[40],[41] 8.50%  
Basis spread on variable rate [35],[38],[40],[41] 4.50%  
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., LLC Units    
Percent of net assets [1],[4],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[49] $ 590,000  
Investment owned, balance (in shares) [4],[35],[49] 510.3  
Investment, Identifier [Axis]: DAWGS Intermediate Holdings Co., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ 353,000  
Interest rate [4],[35],[37],[40],[41] 8.50%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.50%  
Investment, Identifier [Axis]: DIRECTV, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41] $ 0  
Interest rate [4],[40],[41] 9.60%  
Basis spread on variable rate [4],[40],[41] 5.25%  
Investment, Identifier [Axis]: DISA Holdings Corp., First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[37],[38],[39],[40],[42] 0.50% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 10,639,000  
Fair value at ending balance $ 12,740,000 [35],[37],[38],[39],[40],[42] $ 10,639,000 [29],[30],[31],[32],[33],[43]
Interest rate 9.30% [35],[37],[38],[39],[40],[42] 9.50% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[39],[40],[42] 5.00% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: DISA Holdings Corp., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 256,000 [4],[35],[37],[39],[40] $ 0 [8],[30],[31],[33],[43]
Interest rate 9.30% [4],[35],[37],[39],[40] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[39],[40] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: DataServ Integrations, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[51] $ 1,871,000  
Fair value at ending balance [29],[31],[33],[51]   $ 1,871,000
Interest rate [29],[31],[33],[51]   10.00%
Basis spread on variable rate [29],[31],[33],[51]   5.50%
Investment, Identifier [Axis]: DataServ Integrations, LLC, Preferred Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 103,000  
Fair value at ending balance $ 193,000 [4],[35],[49] $ 103,000 [8],[11],[33]
Investment owned, balance (in shares) 175,459.2 [4],[35],[49] 96,153.8 [8],[11],[33]
Investment, Identifier [Axis]: DataServ Integrations, LLC, Revolver    
Percent of net assets [2],[8],[31],[33],[43],[51]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ 0  
Fair value at ending balance [8],[31],[33],[43],[51]   $ 0
Interest rate [8],[31],[33],[43],[51]   10.00%
Basis spread on variable rate [8],[31],[33],[43],[51]   5.50%
Investment, Identifier [Axis]: David Wood Baking UK Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[4],[6],[35],[40],[61] 0.60% [2],[8],[10],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[62] $ 12,270,000  
Fair value at ending balance $ 13,064,000 [4],[6],[35],[40],[61] $ 12,270,000 [8],[10],[31],[33],[62]
Interest rate 14.20% [4],[6],[35],[40],[61] 14.70% [8],[10],[31],[33],[62]
Basis spread on variable rate 10.00% [4],[6],[35],[40],[61] 10.00% [8],[10],[31],[33],[62]
Investment, Identifier [Axis]: DecksDirect, LLC, Class A Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[35],[49] $ 0 [8],[11],[33]
Investment owned, balance (in shares) 1,016.1 [4],[35],[49] 1,016.1 [8],[11],[33]
Investment, Identifier [Axis]: DecksDirect, LLC, Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[35],[49] $ 0 [8],[11],[33]
Investment owned, balance (in shares) 1,280.8 [4],[35],[49] 1,280.8 [8],[11],[33]
Investment, Identifier [Axis]: DecksDirect, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38],[40],[41] 0.10% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 1,383,000  
Fair value at ending balance $ 1,070,000 [35],[38],[40],[41] $ 1,383,000 [29],[30],[31],[33]
Interest rate 10.60% [35],[38],[40],[41] 10.90% [29],[30],[31],[33]
Interest, pik [35],[38],[40],[41] 0.30%  
Basis spread on variable rate 6.25% [35],[38],[40],[41] 6.25% [29],[30],[31],[33]
Investment, Identifier [Axis]: DecksDirect, LLC, Preferred Stock    
Percent of net assets [1],[4],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 0  
Interest, pik [4],[35] 13.00%  
Investment owned, balance (in shares) [4],[35] 9.5  
Investment, Identifier [Axis]: DecksDirect, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 301,000  
Fair value at ending balance $ (14,000) [4],[35],[37],[40],[41] $ 301,000 [8],[30],[31],[33],[43]
Interest rate 10.80% [4],[35],[37],[40],[41] 10.90% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.50% [4],[35],[37],[40],[41] 6.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: DexKo, First Lien Senior Secured Term Loan    
Percent of net assets [1],[37],[39],[40],[44] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [37],[39],[40],[44] $ 887,000  
Interest rate [37],[39],[40],[44] 8.00%  
Basis spread on variable rate [37],[39],[40],[44] 3.75%  
Investment, Identifier [Axis]: Diameter Capital CLO 8 Ltd., Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 3,770,000  
Fair value at ending balance $ 3,799,000 [4],[6],[40],[41] $ 3,770,000 [8],[10],[30],[31]
Interest rate 10.50% [4],[6],[40],[41] 10.70% [8],[10],[30],[31]
Basis spread on variable rate 6.15% [4],[6],[40],[41] 6.15% [8],[10],[30],[31]
Investment, Identifier [Axis]: Discovery Buyer, L.P., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 15,703,000  
Interest rate [35],[37],[38],[40],[41] 9.20%  
Basis spread on variable rate [35],[37],[38],[40],[41] 5.00%  
Investment, Identifier [Axis]: Discovery Buyer, L.P., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (22,000)  
Interest rate [4],[35],[37],[40],[41] 9.20%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.00%  
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 416,000  
Fair value at ending balance $ 545,000 [35] $ 416,000 [11],[33]
Investment owned, balance (in shares) 3,462 [35] 3,462 [11],[33]
Investment, Identifier [Axis]: Diversified Packaging Holdings LLC, Second Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38],[40] 0.00% [2],[29],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33] $ 896,000  
Fair value at ending balance $ 1,003,000 [35],[38],[40] $ 896,000 [29],[31],[33]
Interest rate 11.00% [35],[38],[40] 11.00% [29],[31],[33]
Interest, pik 1.50% [35],[38],[40] 1.50% [29],[31],[33]
Investment, Identifier [Axis]: Dragon Bidco, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[46]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 1,241,000  
Fair value at ending balance [10],[29],[31],[33],[46]   $ 1,241,000
Interest rate [10],[29],[31],[33],[46]   8.60%
Basis spread on variable rate [10],[29],[31],[33],[46]   5.50%
Investment, Identifier [Axis]: DreamStart BidCo SAS (d/b/a SmartTrade), First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[10],[29],[31],[33],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[46] 828,000  
Fair value at ending balance [8],[10],[29],[31],[33],[46]   $ 828,000
Interest rate [8],[10],[29],[31],[33],[46]   8.60%
Basis spread on variable rate [8],[10],[29],[31],[33],[46]   5.25%
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[43],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] 222,000  
Fair value at ending balance [10],[29],[31],[33],[43],[46]   $ 222,000
Interest rate [10],[29],[31],[33],[43],[46]   6.60%
Basis spread on variable rate [10],[29],[31],[33],[43],[46]   4.00%
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[30],[31],[33]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] 4,565,000  
Fair value at ending balance [10],[29],[30],[31],[33]   $ 4,565,000
Interest rate [10],[29],[30],[31],[33]   8.80%
Basis spread on variable rate [10],[29],[30],[31],[33]   4.00%
Investment, Identifier [Axis]: Dune Group, First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[10],[29],[30],[31],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 482,000  
Fair value at ending balance [10],[29],[30],[31],[33]   $ 482,000
Interest rate [10],[29],[30],[31],[33]   6.30%
Interest, pik [10],[29],[30],[31],[33]   2.30%
Basis spread on variable rate [10],[29],[30],[31],[33]   4.00%
Investment, Identifier [Axis]: Dunlipharder B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[41] 0.10% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 998,000  
Fair value at ending balance $ 1,000,000 [6],[35],[38],[40],[41] $ 998,000 [10],[29],[30],[31],[33]
Interest rate 9.60% [6],[35],[38],[40],[41] 9.90% [10],[29],[30],[31],[33]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[41] 5.25% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Durare Bidco, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 43,982,000  
Interest rate [35],[37],[38],[40],[41] 9.00%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.75%  
Investment, Identifier [Axis]: Durare Bidco, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 1.70%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (117,000)  
Interest rate [4],[35],[37],[40],[41] 9.00%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.75%  
Investment, Identifier [Axis]: Dwyer Instruments, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 6,703,000  
Fair value at ending balance $ 6,598,000 [35],[38],[40],[41] $ 6,703,000 [29],[30],[31],[33]
Interest rate 8.80% [35],[38],[40],[41] 9.50% [29],[30],[31],[33]
Basis spread on variable rate 4.75% [35],[38],[40],[41] 4.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Dwyer Instruments, Inc., Revolver    
Percent of net assets [1],[35],[38],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 129,000  
Interest rate [35],[38],[40],[41] 8.80%  
Basis spread on variable rate [35],[38],[40],[41] 4.75%  
Investment, Identifier [Axis]: EB Development, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[6],[35],[37],[38],[40],[45] 0.40% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 7,346,000  
Fair value at ending balance $ 7,503,000 [6],[35],[37],[38],[40],[45] $ 7,346,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.50% [6],[35],[37],[38],[40],[45] 8.30% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.50% [6],[35],[37],[38],[40],[45] 5.50% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: EFC International, Common Stock    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 328,000  
Fair value at ending balance $ 219,000 [35],[49] $ 328,000 [11],[33]
Investment owned, balance (in shares) 141.2 [35],[49] 141.2 [11],[33]
Investment, Identifier [Axis]: EFC International, Senior Unsecured Term Loan    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 686,000  
Fair value at ending balance $ 705,000 [4],[35] $ 686,000 [8],[33]
Interest rate 11.00% [4],[35] 11.00% [8],[33]
Interest, pik 2.50% [4],[35] 2.50% [8],[33]
Investment, Identifier [Axis]: EMI Porta Holdco LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.50% [1],[35],[38],[40],[41] 2.10% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 42,351,000  
Fair value at ending balance $ 39,841,000 [35],[38],[40],[41] $ 42,351,000 [29],[30],[31],[33]
Interest rate 9.90% [35],[38],[40],[41] 10.50% [29],[30],[31],[33]
Basis spread on variable rate 5.75% [35],[38],[40],[41] 5.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: EMI Porta Holdco LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 465,000  
Fair value at ending balance $ 468,000 [4],[35],[37],[39],[40] $ 465,000 [8],[30],[31],[33],[43]
Interest rate 9.90% [4],[35],[37],[39],[40] 10.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[39],[40] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: EZ SMBO Bidco, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[4],[6],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35] $ 395,000  
Interest, pik [4],[6],[35] 8.00%  
Investment, Identifier [Axis]: EZ SMBO Bidco, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[6],[35],[38],[40],[68] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[68] $ 714,000  
Interest rate [6],[35],[38],[40],[68] 7.80%  
Basis spread on variable rate [6],[35],[38],[40],[68] 5.00%  
Investment, Identifier [Axis]: EZ SMBO Bidco, First Lien Senior Secured Term Loan 3    
Percent of net assets [1],[6],[35],[37],[38],[40],[54] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[54] $ 1,047,000  
Interest rate [6],[35],[37],[38],[40],[54] 7.00%  
Basis spread on variable rate [6],[35],[37],[38],[40],[54] 5.00%  
Investment, Identifier [Axis]: Echo Global Logistics, Inc., Partnership Equity    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 352,000  
Fair value at ending balance $ 224,000 [4],[35],[49] $ 352,000 [8],[11],[33]
Investment owned, balance (in shares) 448.2 [4],[35],[49] 448.2 [8],[11],[33]
Investment, Identifier [Axis]: Echo Global Logistics, Inc., Second Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[38],[39],[40] 0.80% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 16,400,000  
Fair value at ending balance $ 16,006,000 [35],[38],[39],[40] $ 16,400,000 [29],[31],[33],[48]
Interest rate 11.50% [35],[38],[39],[40] 11.70% [29],[31],[33],[48]
Basis spread on variable rate 7.25% [35],[38],[39],[40] 7.00% [29],[31],[33],[48]
Investment, Identifier [Axis]: Eclipse Business Capital Holdings LLC, Revolver, Funded    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 7,100,000  
Fair value at ending balance 4,900,000 $ 7,100,000
Investment, Identifier [Axis]: Eclipse Business Capital, LLC Second Lien Senior Secured Term Loan    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] 3,209,000 3,209,000
Gross Additions 3,000 [12] 4,000 [13],[19]
Gross Reductions 0 [14] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (3,000) (4,000) [19]
Fair value at ending balance 3,209,000 3,209,000 [19]
Amount of Interest or Dividends Credited to Income $ 187,000 [16] $ 341,000 [17],[19]
Interest rate 7.50% 7.50% [19]
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, LLC Units    
Percent of net assets 3.70% [1],[4],[5],[35] 4.90% [2],[8],[9],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[9],[33] $ 96,603,000  
Fair value at ending balance $ 98,497,000 [4],[5],[35] $ 96,603,000 [8],[9],[33]
Investment owned, balance (in shares) 63,139,338 [4],[5],[35] 63,139,338 [8],[9],[33]
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, LLC units    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 96,603,000 $ 102,917,000
Gross Additions 16,000 [12] 47,000 [13],[19]
Gross Reductions 0 [14] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,878,000 (6,361,000) [19]
Fair value at ending balance 98,497,000 96,603,000 [19]
Amount of Interest or Dividends Credited to Income $ 8,748,000 [16] $ 10,513,000 [17],[19]
Investment owned, balance (in shares) 63,139,338 63,139,338 [19]
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Revolver    
Percent of net assets 0.20% [1],[4],[5],[35],[37],[39],[40] 0.40% [2],[8],[9],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[9],[31],[33],[43],[48] $ 7,123,000  
Fair value at ending balance $ 4,941,000 [4],[5],[35],[37],[39],[40] $ 7,123,000 [8],[9],[31],[33],[43],[48]
Interest rate 10.80% [4],[5],[35],[37],[39],[40] 11.90% [8],[9],[31],[33],[43],[48]
Basis spread on variable rate 6.50% [4],[5],[35],[37],[39],[40] 7.25% [8],[9],[31],[33],[43],[48]
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Revolver    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 7,123,000 $ 3,915,000
Gross Additions 2,128,000 [12] 19,522,000 [13],[19]
Gross Reductions (4,300,000) [14] (16,300,000) [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (10,000) (14,000) [19]
Fair value at ending balance 4,941,000 7,123,000 [19]
Amount of Interest or Dividends Credited to Income $ 588,000 [16] $ 465,000 [17],[19]
Interest rate 10.80% 11.90% [19]
Basis spread on variable rate 6.50% 7.25% [19]
Investment, Identifier [Axis]: Eclipse Business Capital, LLC, Second Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[5],[35] 0.20% [2],[8],[9],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[9],[33] $ 3,209,000  
Fair value at ending balance $ 3,209,000 [4],[5],[35] $ 3,209,000 [8],[9],[33]
Interest rate 7.50% [4],[5],[35] 7.50% [8],[9],[33]
Investment, Identifier [Axis]: Electric Equipment & Engineering Co., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38] 0.00% [2],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[33] $ 307,000  
Fair value at ending balance $ 316,000 [35],[38] $ 307,000 [29],[33]
Interest rate 13.50% [35],[38] 10.50% [29],[33]
Interest, pik [29],[33]   3.00%
Investment, Identifier [Axis]: Electric Equipment & Engineering Co., LLC Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 188,000  
Fair value at ending balance $ 306,000 [4],[35],[49] $ 188,000 [8],[11],[33]
Investment owned, balance (in shares) 187,500 [4],[35],[49] 187,500 [8],[11],[33]
Investment, Identifier [Axis]: Electrical Components International, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[31],[33],[43],[51]   1.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ 20,819,000  
Fair value at ending balance [8],[31],[33],[43],[51]   $ 20,819,000
Interest rate [8],[31],[33],[43],[51]   11.30%
Basis spread on variable rate [8],[31],[33],[43],[51]   6.50%
Investment, Identifier [Axis]: Ellkay, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,072,000  
Fair value at ending balance [29],[30],[31],[33]   $ 5,072,000
Interest rate [29],[30],[31],[33]   8.00%
Interest, pik [29],[30],[31],[33]   2.00%
Basis spread on variable rate [29],[30],[31],[33]   5.50%
Investment, Identifier [Axis]: Elmwood CLO 29 Ltd., Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 2,576,000  
Fair value at ending balance $ 2,507,000 [4],[6],[40],[41] $ 2,576,000 [8],[10],[30],[31]
Interest rate 10.70% [4],[6],[40],[41] 11.00% [8],[10],[30],[31]
Basis spread on variable rate 6.40% [4],[6],[40],[41] 6.40% [8],[10],[30],[31]
Investment, Identifier [Axis]: Entact Environmental Services, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[38],[40],[41],[42] 0.10% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 1,850,000  
Fair value at ending balance $ 1,778,000 [38],[40],[41],[42] $ 1,850,000 [29],[30],[31],[32],[33]
Interest rate 9.80% [38],[40],[41],[42] 10.40% [29],[30],[31],[32],[33]
Basis spread on variable rate 5.75% [38],[40],[41],[42] 5.75% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[52],[54] 0.00% [2],[10],[29],[31],[33],[53],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53],[67] $ 830,000  
Fair value at ending balance $ 617,000 [6],[35],[38],[40],[52],[54] $ 830,000 [10],[29],[31],[33],[53],[67]
Interest, pik 9.40% [6],[35],[38],[40],[52],[54] 9.60% [10],[29],[31],[33],[53],[67]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[52],[54] 7.00% [10],[29],[31],[33],[53],[67]
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[41],[52] 0.00% [2],[10],[29],[30],[31],[33],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33],[67] $ 453,000  
Fair value at ending balance $ 298,000 [6],[35],[38],[40],[41],[52] $ 453,000 [10],[29],[30],[31],[33],[67]
Interest, pik 12.40% [6],[35],[38],[40],[41],[52] 11.30% [10],[29],[30],[31],[33],[67]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[41],[52] 7.00% [10],[29],[30],[31],[33],[67]
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, First Lien Senior Secured Term Loan 3    
Percent of net assets [1],[4],[6],[35],[40],[52],[61] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[40],[52],[61] $ 822,000  
Interest, pik [4],[6],[35],[40],[52],[61] 12.40%  
Basis spread on variable rate [4],[6],[35],[40],[52],[61] 7.00%  
Investment, Identifier [Axis]: Eurofins Digital Testing International LUX Holding SARL, Senior Subordinated Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[52] 0.00% [2],[8],[10],[33],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33],[67] $ 0  
Fair value at ending balance $ 0 [4],[6],[35],[52] $ 0 [8],[10],[33],[67]
Interest, pik 11.50% [4],[6],[35],[52] 11.50% [8],[10],[33],[67]
Investment, Identifier [Axis]: Events Software BidCo Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[58] 0.10% [2],[10],[29],[31],[33],[43],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[57] $ 1,336,000  
Fair value at ending balance $ 1,426,000 [6],[35],[37],[38],[40],[58] $ 1,336,000 [10],[29],[31],[33],[43],[57]
Interest rate 10.20% [6],[35],[37],[38],[40],[58] 11.00% [10],[29],[31],[33],[43],[57]
Basis spread on variable rate 6.50% [6],[35],[37],[38],[40],[58] 6.50% [10],[29],[31],[33],[43],[57]
Investment, Identifier [Axis]: Expert Institute Group Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 3,752,000  
Interest rate [35],[37],[38],[40],[41] 8.10%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.25%  
Investment, Identifier [Axis]: Expert Institute Group Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (17,000)  
Interest rate [4],[35],[37],[40],[41] 8.10%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.25%  
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,918,000  
Fair value at ending balance $ 4,866,000 [35],[38],[40],[41] $ 5,918,000 [29],[30],[31],[33]
Interest rate 10.60% [35],[38],[40],[41] 11.40% [29],[30],[31],[33]
Basis spread on variable rate 6.25% [35],[38],[40],[41] 6.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Express Wash Acquisition Company, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 123,000  
Fair value at ending balance $ (1,000) [4],[35],[37],[40],[41] $ 123,000 [8],[30],[31],[33],[43]
Interest rate 10.60% [4],[35],[37],[40],[41] 11.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.25% [4],[35],[37],[40],[41] 6.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: FL Hawk Intermediate Holdings, Inc. (f/k/a Fineline Technologies, Inc.), First Lien Senior Secured Term Loan    
Percent of net assets 1.40% [1],[35],[38],[39],[40],[42] 1.90% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 38,186,000  
Fair value at ending balance $ 38,148,000 [35],[38],[39],[40],[42] $ 38,186,000 [29],[30],[31],[32],[33]
Interest rate 8.60% [35],[38],[39],[40],[42] 9.10% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.50% [35],[38],[39],[40],[42] 4.50% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: FSS Buyer LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[39],[40],[41],[42] 1.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[39],[40],[41],[42] $ 40,511,000  
Interest rate [35],[38],[39],[40],[41],[42] 8.70%  
Basis spread on variable rate [35],[38],[39],[40],[41],[42] 4.50%  
Investment, Identifier [Axis]: FSS Buyer LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[30],[31],[32],[33]   0.80%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 14,923,000  
Fair value at ending balance [30],[31],[32],[33]   $ 14,923,000
Interest rate [30],[31],[32],[33]   9.40%
Basis spread on variable rate [30],[31],[32],[33]   5.00%
Investment, Identifier [Axis]: FSS Buyer LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[31],[33],[48]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 9,113,000  
Fair value at ending balance [29],[31],[33],[48]   $ 9,113,000
Interest rate [29],[31],[33],[48]   9.60%
Basis spread on variable rate [29],[31],[33],[48]   5.00%
Investment, Identifier [Axis]: FSS Buyer LLC, LP Interest    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 42,000  
Fair value at ending balance $ 43,000 [35],[49] $ 42,000 [11],[33]
Investment owned, balance (in shares) 2,902.3 [35],[49] 2,902.3 [11],[33]
Investment, Identifier [Axis]: FSS Buyer LLC, LP Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 185,000  
Fair value at ending balance $ 190,000 [35],[49] $ 185,000 [33]
Investment owned, balance (in shares) 12,760.8 [35],[49] 12,760.8 [33]
Investment, Identifier [Axis]: Faraday, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 234,000  
Fair value at ending balance $ 3,569,000 [4],[6],[35],[38],[40],[45] $ 234,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.90% [4],[6],[35],[38],[40],[45] 9.60% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.85% [4],[6],[35],[38],[40],[45] 6.25% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Featherstone Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[59] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[59] $ 2,478,000  
Interest rate [6],[35],[38],[40],[59] 9.80%  
Basis spread on variable rate [6],[35],[38],[40],[59] 6.00%  
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[39],[40],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[39],[40],[44] $ 9,620,000  
Interest rate [35],[39],[40],[44] 8.00%  
Basis spread on variable rate [35],[39],[40],[44] 4.00%  
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc., Preferred Stock    
Percent of net assets 0.10% [1],[35],[38] 0.10% [2],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[33] $ 2,717,000  
Fair value at ending balance $ 3,248,000 [35],[38] $ 2,717,000 [29],[33]
Interest, pik 11.00% [35],[38] 11.00% [29],[33]
Investment owned, balance (in shares) 3,188.5 [35],[38] 3,188.5 [29],[33]
Investment, Identifier [Axis]: FinThrive Software Intermediate Holdings Inc., Second Out Term Loan    
Percent of net assets [1],[4],[39],[40] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40] $ 6,647,000  
Interest rate [4],[39],[40] 8.00%  
Basis spread on variable rate [4],[39],[40] 4.00%  
Investment, Identifier [Axis]: Finaxy Holding, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[6],[35],[37],[38],[40],[54] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[37],[38],[40],[54] $ 9,550,000  
Interest rate [4],[6],[35],[37],[38],[40],[54] 6.50%  
Basis spread on variable rate [4],[6],[35],[37],[38],[40],[54] 4.50%  
Investment, Identifier [Axis]: Finaxy Holding, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[43],[46]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ (117,000)  
Fair value at ending balance [10],[29],[31],[33],[43],[46]   $ (117,000)
Interest rate [10],[29],[31],[33],[43],[46]   9.30%
Basis spread on variable rate [10],[29],[31],[33],[43],[46]   6.25%
Investment, Identifier [Axis]: Finaxy Holding, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 4,291,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 4,291,000
Interest rate [10],[29],[31],[33],[53]   9.30%
Basis spread on variable rate [10],[29],[31],[33],[53]   6.25%
Investment, Identifier [Axis]: Findex Group Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[38],[70] 0.10% [2],[10],[29],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[33],[57] $ 2,217,000  
Fair value at ending balance $ 2,393,000 [4],[6],[35],[38],[70] $ 2,217,000 [10],[29],[33],[57]
Interest rate 8.60% [4],[6],[35],[38],[70] 9.70% [10],[29],[33],[57]
Basis spread on variable rate 5.00% [4],[6],[35],[38],[70] 5.50% [10],[29],[33],[57]
Investment, Identifier [Axis]: Finexvet, First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[6],[35],[38],[40],[54] 0.50% [2],[8],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 9,227,000  
Fair value at ending balance $ 9,814,000 [4],[6],[35],[38],[40],[54] $ 9,227,000 [8],[10],[29],[31],[33],[53]
Interest rate 6.00% [4],[6],[35],[38],[40],[54] 10.20% [8],[10],[29],[31],[33],[53]
Interest, pik [4],[6],[35],[38],[40],[54] 3.30%  
Basis spread on variable rate 4.00% [4],[6],[35],[38],[40],[54] 6.50% [8],[10],[29],[31],[33],[53]
Investment, Identifier [Axis]: FitzMark Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[39],[40],[42] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[39],[40],[42] $ 4,036,000  
Interest rate [4],[35],[39],[40],[42] 8.80%  
Basis spread on variable rate [4],[35],[39],[40],[42] 4.50%  
Investment, Identifier [Axis]: Fitzmark, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[31],[32],[33],[48]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[32],[33],[48] $ 4,171,000  
Fair value at ending balance [8],[31],[32],[33],[48]   $ 4,171,000
Interest rate [8],[31],[32],[33],[48]   9.40%
Basis spread on variable rate [8],[31],[32],[33],[48]   4.75%
Investment, Identifier [Axis]: Five Star Holding LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 294,000  
Fair value at ending balance $ 395,000 [35],[49] $ 294,000 [11],[33]
Investment owned, balance (in shares) 505.1 [35],[49] 505.1 [11],[33]
Investment, Identifier [Axis]: Five Star Holding LLC, Second Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[38],[40],[41] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 6,895,000  
Fair value at ending balance $ 7,152,000 [35],[38],[40],[41] $ 6,895,000 [29],[30],[31],[33]
Interest rate 11.40% [35],[38],[40],[41] 11.80% [29],[30],[31],[33]
Basis spread on variable rate 7.25% [35],[38],[40],[41] 7.25% [29],[30],[31],[33]
Investment, Identifier [Axis]: Flexential Issuer, LLC, Structured Secured Note - Class C    
Percent of net assets 0.40% [1],[4] 0.50% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8] $ 9,587,000  
Fair value at ending balance $ 9,831,000 [4] $ 9,587,000 [8]
Interest rate 6.90% [4] 6.90% [8]
Investment, Identifier [Axis]: Flywheel Holdings Segregated Portfolio 2025-2, LP Interest    
Percent of net assets [1],[4],[6],[35],[49] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[49] $ 8,415,000  
Investment owned, balance (in shares) [4],[6],[35],[49] 8,331,792  
Investment, Identifier [Axis]: Flywheel Re Segregated Portfolio 2022-4, Preferred Stock    
Percent of net assets 0.20% [1],[4],[6],[35] 0.30% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 6,458,000  
Fair value at ending balance $ 4,478,000 [4],[6],[35] $ 6,458,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 4,713,809.8 [4],[6],[35] 4,713,809.8 [8],[10],[11],[33]
Investment, Identifier [Axis]: Focus Financial Partners LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[44] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[44] $ 1,000,000  
Interest rate [39],[44] 6.90%  
Basis spread on variable rate [39],[44] 2.75%  
Investment, Identifier [Axis]: Footco 40 Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 217,000  
Fair value at ending balance $ 246,000 [6],[35],[38],[40],[45] $ 217,000 [10],[29],[31],[33],[46]
Interest rate 8.50% [6],[35],[38],[40],[45] 10.20% [10],[29],[31],[33],[46]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[45] 6.50% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Footco 40 Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[59] 0.10% [2],[10],[29],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[60] $ 1,588,000  
Fair value at ending balance $ 1,709,000 [6],[35],[38],[40],[59] $ 1,588,000 [10],[29],[31],[33],[43],[60]
Interest rate 10.90% [6],[35],[38],[40],[59] 11.50% [10],[29],[31],[33],[43],[60]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[59] 6.50% [10],[29],[31],[33],[43],[60]
Investment, Identifier [Axis]: Forest Buyer, LLC, Class A LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 262,000  
Fair value at ending balance $ 278,000 [35],[49] $ 262,000 [11],[33]
Investment owned, balance (in shares) 245.8 [35],[49] 245.8 [11],[33]
Investment, Identifier [Axis]: Forest Buyer, LLC, Class B LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 250,000  
Fair value at ending balance $ 134,000 [35] $ 250,000 [11],[33]
Investment owned, balance (in shares) 245.8 [35] 245.8 [11],[33]
Investment, Identifier [Axis]: Forest Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 2.20% [1],[35],[38],[40],[41] 0.60% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 12,187,000  
Fair value at ending balance $ 57,070,000 [35],[38],[40],[41] $ 12,187,000 [29],[30],[31],[33]
Interest rate 9.00% [35],[38],[40],[41] 9.60% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[41] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: Forest Buyer, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (4,000)  
Fair value at ending balance $ (28,000) [4],[35],[37],[40],[41] $ (4,000) [8],[30],[31],[33],[43]
Interest rate 9.00% [4],[35],[37],[40],[41] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Fortis Payment Systems, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[32],[33],[43]   0.90%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 18,278,000  
Fair value at ending balance [29],[30],[31],[32],[33],[43]   $ 18,278,000
Interest rate [29],[30],[31],[32],[33],[43]   10.00%
Basis spread on variable rate [29],[30],[31],[32],[33],[43]   5.25%
Investment, Identifier [Axis]: Fortis Payment Systems, LLC, Revolver    
Percent of net assets [2],[8],[30],[31],[33],[43]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (32,000)  
Fair value at ending balance [8],[30],[31],[33],[43]   $ (32,000)
Interest rate [8],[30],[31],[33],[43]   10.00%
Basis spread on variable rate [8],[30],[31],[33],[43]   5.25%
Investment, Identifier [Axis]: Foundation Building Materials Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41] $ 8,000  
Interest rate [4],[40],[41] 8.30%  
Basis spread on variable rate [4],[40],[41] 4.00%  
Investment, Identifier [Axis]: FragilePak LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[40],[41],[42] 0.50% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 8,972,000  
Fair value at ending balance $ 8,902,000 [35],[40],[41],[42] $ 8,972,000 [29],[30],[31],[33]
Interest rate 10.20% [35],[40],[41],[42] 10.50% [29],[30],[31],[33]
Basis spread on variable rate 5.75% [35],[40],[41],[42] 5.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: FragilePak LLC, Partnership Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 761,000  
Fair value at ending balance $ 729,000 [35],[49] $ 761,000 [11],[33]
Investment owned, balance (in shares) 929.7 [35],[49] 929.7 [11],[33]
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[35],[37],[38],[40],[41] 0.60% [2],[8],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33],[43] $ 10,992,000  
Fair value at ending balance $ 11,035,000 [4],[35],[37],[38],[40],[41] $ 10,992,000 [8],[29],[30],[31],[33],[43]
Interest rate 8.50% [4],[35],[37],[38],[40],[41] 10.90% [8],[29],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[38],[40],[41] 6.25% [8],[29],[30],[31],[33],[43]
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., Partnership Units    
Percent of net assets 0.10% [1],[4],[35] 0.10% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 1,688,000  
Fair value at ending balance $ 1,890,000 [4],[35] $ 1,688,000 [8],[33]
Investment owned, balance (in shares) 859 [4],[35] 859 [8],[33]
Investment, Identifier [Axis]: GB Eagle Buyer, Inc., Revolver    
Percent of net assets 0.00% [1],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (29,000)  
Fair value at ending balance $ 1,086,000 [35],[37],[40],[41] $ (29,000) [8],[30],[31],[33],[43]
Interest rate 8.50% [35],[37],[40],[41] 10.90% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [35],[37],[40],[41] 6.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: GCDL LLC, Common Stock    
Percent of net assets 0.00% [1],[35] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 243,000  
Fair value at ending balance $ 355,000 [35] $ 243,000 [11],[33]
Investment owned, balance (in shares) 243,243.24 [35] 243,243.24 [11],[33]
Investment, Identifier [Axis]: GCDL LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[37],[38],[40],[41] 0.00% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 529,000  
Fair value at ending balance $ 503,000 [35],[37],[38],[40],[41] $ 529,000 [29],[30],[31],[33],[43]
Interest rate 10.00% [35],[37],[38],[40],[41] 10.40% [29],[30],[31],[33],[43]
Basis spread on variable rate 6.00% [35],[37],[38],[40],[41] 6.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: GCDL LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (2,000)  
Fair value at ending balance $ (1,000) [4],[35],[37],[40],[41] $ (2,000) [8],[30],[31],[33],[43]
Interest rate 10.00% [4],[35],[37],[40],[41] 10.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.00% [4],[35],[37],[40],[41] 6.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: GEON, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 2,795,000  
Interest rate [40],[41],[44] 8.50%  
Basis spread on variable rate [40],[41],[44] 4.25%  
Investment, Identifier [Axis]: GMES LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 16,274,000  
Interest rate [35],[37],[38],[40],[41] 9.40%  
Basis spread on variable rate [35],[37],[38],[40],[41] 5.25%  
Investment, Identifier [Axis]: GMES LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (27,000)  
Interest rate [4],[35],[37],[40],[41] 9.40%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.25%  
Investment, Identifier [Axis]: GPNZ II GmbH, Common Stock    
Percent of net assets 0.00% [1],[6],[35],[38],[49] 0.00% [2],[10],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[11],[29],[33] $ 0  
Fair value at ending balance $ 0 [6],[35],[38],[49] $ 0 [10],[11],[29],[33]
Investment owned, balance (in shares) 5,785 [6],[35],[38],[49] 5,785 [10],[11],[29],[33]
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[4],[6],[35],[37] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 271,000  
Fair value at ending balance $ 275,000 [4],[6],[35],[37] $ 271,000 [8],[10],[33]
Interest, pik 10.00% [4],[6],[35],[37] 10.00% [8],[10],[33]
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[8],[10],[31],[33],[43]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43] $ 33,000  
Fair value at ending balance [8],[10],[31],[33],[43]   $ 33,000
Interest, pik [8],[10],[31],[33],[43]   10.00%
Investment, Identifier [Axis]: GPNZ II GmbH, First Lien Senior Secured Term Loan 3    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[52],[63] 0.00% [2],[10],[29],[31],[33],[64],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[64],[67] $ 189,000  
Fair value at ending balance $ 0 [6],[35],[38],[40],[52],[63] $ 189,000 [10],[29],[31],[33],[64],[67]
Interest rate [10],[29],[31],[33],[64],[67]   8.70%
Interest, pik [6],[35],[38],[40],[52],[63] 9.90%  
Basis spread on variable rate 6.00% [6],[35],[38],[40],[52],[63] 6.00% [10],[29],[31],[33],[64],[67]
Investment, Identifier [Axis]: Genesee & Wyoming Inc , First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 3,401,000  
Interest rate [40],[41],[44] 5.80%  
Basis spread on variable rate [40],[41],[44] 1.75%  
Investment, Identifier [Axis]: GenesisCare, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[58] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[58] $ 3,260,000  
Interest rate [6],[35],[37],[38],[40],[58] 8.30%  
Basis spread on variable rate [6],[35],[37],[38],[40],[58] 4.75%  
Investment, Identifier [Axis]: Glacis Acquisition S.A.R.L., First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[6],[35],[37],[38],[40],[54] 0.50% [2],[10],[29],[31],[33],[43],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 10,789,000  
Fair value at ending balance $ 12,130,000 [6],[35],[37],[38],[40],[54] $ 10,789,000 [10],[29],[31],[33],[43],[53]
Interest rate 8.60% [6],[35],[37],[38],[40],[54] 9.90% [10],[29],[31],[33],[43],[53]
Basis spread on variable rate 6.50% [6],[35],[37],[38],[40],[54] 6.50% [10],[29],[31],[33],[43],[53]
Investment, Identifier [Axis]: Global Academic Group Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[58] 0.10% [2],[10],[29],[31],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 2,284,000  
Fair value at ending balance $ 2,680,000 [6],[35],[38],[40],[58] $ 2,284,000 [10],[29],[31],[33],[57]
Interest rate 8.70% [6],[35],[38],[40],[58] 9.30% [10],[29],[31],[33],[57]
Basis spread on variable rate 4.91% [6],[35],[38],[40],[58] 5.50% [10],[29],[31],[33],[57]
Investment, Identifier [Axis]: Global Academic Group Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.20% [1],[6],[35],[37],[38],[40],[71] 0.20% [2],[10],[29],[31],[33],[43],[72]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[72] $ 4,000,000  
Fair value at ending balance $ 4,146,000 [6],[35],[37],[38],[40],[71] $ 4,000,000 [10],[29],[31],[33],[43],[72]
Interest rate 8.20% [6],[35],[37],[38],[40],[71] 9.30% [10],[29],[31],[33],[43],[72]
Basis spread on variable rate 4.91% [6],[35],[37],[38],[40],[71] 5.50% [10],[29],[31],[33],[43],[72]
Investment, Identifier [Axis]: Global Medical Response, Inc. (f/k/a Air Medical Group Holdings), First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 9,402,000  
Interest rate [39],[40],[44] 7.60%  
Basis spread on variable rate [39],[40],[44] 3.50%  
Investment, Identifier [Axis]: Gojo Industries, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[4],[35],[39],[40] 1.30% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 25,143,000  
Fair value at ending balance $ 24,742,000 [4],[35],[39],[40] $ 25,143,000 [8],[30],[31],[33]
Interest rate 12.90% [4],[35],[39],[40] 9.80% [8],[30],[31],[33]
Interest, pik [8],[30],[31],[33]   4.50%
Basis spread on variable rate 8.75% [4],[35],[39],[40] 9.50% [8],[30],[31],[33]
Investment, Identifier [Axis]: Golub Capital Partners CLO 62(B)-R, Ltd., Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 4,266,000  
Fair value at ending balance $ 4,261,000 [4],[6],[40],[41] $ 4,266,000 [8],[10],[30],[31]
Interest rate 10.70% [4],[6],[40],[41] 11.00% [8],[10],[30],[31]
Basis spread on variable rate 6.40% [4],[6],[40],[41] 6.40% [8],[10],[30],[31]
Investment, Identifier [Axis]: Graphpad Software, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[32],[33],[43]   1.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 22,798,000  
Fair value at ending balance [29],[30],[31],[32],[33],[43]   $ 22,798,000
Interest rate [29],[30],[31],[32],[33],[43]   9.40%
Basis spread on variable rate [29],[30],[31],[32],[33],[43]   4.75%
Investment, Identifier [Axis]: Graphpad Software, LLC, Revolver    
Percent of net assets [2],[8],[30],[31],[33],[43]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (2,000)  
Fair value at ending balance [8],[30],[31],[33],[43]   $ (2,000)
Interest rate [8],[30],[31],[33],[43]   9.40%
Basis spread on variable rate [8],[30],[31],[33],[43]   4.75%
Investment, Identifier [Axis]: Greenhill II BV, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 936,000  
Fair value at ending balance $ 1,764,000 [6],[35],[37],[38],[40],[45] $ 936,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.10% [6],[35],[37],[38],[40],[45] 8.30% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.10% [6],[35],[37],[38],[40],[45] 5.10% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Groupe Guemas, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[54] 0.10% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 2,374,000  
Fair value at ending balance $ 2,712,000 [6],[35],[38],[40],[54] $ 2,374,000 [10],[29],[31],[33],[53]
Interest rate 8.30% [6],[35],[38],[40],[54] 9.40% [10],[29],[31],[33],[53]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[54] 6.25% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Groupe Product Life, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[43],[46]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 6,110,000  
Fair value at ending balance [10],[29],[31],[33],[43],[46]   $ 6,110,000
Interest rate [10],[29],[31],[33],[43],[46]   8.50%
Basis spread on variable rate [10],[29],[31],[33],[43],[46]   5.45%
Investment, Identifier [Axis]: Groupe Product Life, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[37],[38],[40],[45] 0.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[45] $ 12,692,000  
Interest rate [6],[35],[37],[38],[40],[45] 7.50%  
Basis spread on variable rate [6],[35],[37],[38],[40],[45] 5.75%  
Investment, Identifier [Axis]: HEKA Invest, First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[6],[35],[37],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 3,902,000  
Fair value at ending balance $ 11,007,000 [4],[6],[35],[37],[38],[40],[45] $ 3,902,000 [10],[29],[31],[33],[43],[46]
Interest rate 8.20% [4],[6],[35],[37],[38],[40],[45] 9.60% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 6.20% [4],[6],[35],[37],[38],[40],[45] 6.25% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: HS Advisory Buyer LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 16,100,000  
Interest rate [35],[37],[38],[40],[41] 8.50%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.50%  
Investment, Identifier [Axis]: HS Advisory Buyer LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (39,000)  
Interest rate [4],[35],[37],[40],[41] 8.50%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.50%  
Investment, Identifier [Axis]: HSL Compliance, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[59] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[59] $ 1,294,000  
Interest rate [6],[35],[37],[38],[40],[59] 9.20%  
Basis spread on variable rate [6],[35],[37],[38],[40],[59] 5.25%  
Investment, Identifier [Axis]: HTI Technology & Industries, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[4],[35],[37],[38],[40],[42],[50] 0.40% [2],[8],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[32],[33],[43] $ 8,303,000  
Fair value at ending balance $ 8,240,000 [4],[35],[37],[38],[40],[42],[50] $ 8,303,000 [8],[29],[30],[31],[32],[33],[43]
Interest rate 12.90% [4],[35],[37],[38],[40],[42],[50] 13.50% [8],[29],[30],[31],[32],[33],[43]
Basis spread on variable rate 8.50% [4],[35],[37],[38],[40],[42],[50] 8.50% [8],[29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: HTI Technology & Industries, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (58,000)  
Fair value at ending balance $ (64,000) [4],[35],[37],[40],[41] $ (58,000) [8],[30],[31],[33],[43]
Interest rate 12.90% [4],[35],[37],[40],[41] 13.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 8.50% [4],[35],[37],[40],[41] 8.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: HW Holdco, LLC (Hanley Wood LLC), First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[38],[40],[41],[42] 1.00% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 19,210,000  
Fair value at ending balance $ 18,047,000 [35],[38],[40],[41],[42] $ 19,210,000 [29],[30],[31],[32],[33]
Interest rate 10.20% [35],[38],[40],[41],[42] 10.60% [29],[30],[31],[32],[33]
Basis spread on variable rate 5.75% [35],[38],[40],[41],[42] 5.75% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Harmony Peace Park CLO DAC, Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 2,549,000  
Fair value at ending balance $ 2,523,000 [4],[6],[40],[41] $ 2,549,000 [8],[10],[30],[31]
Interest rate 10.00% [4],[6],[40],[41] 10.50% [8],[10],[30],[31]
Basis spread on variable rate 5.50% [4],[6],[40],[41] 5.70% [8],[10],[30],[31]
Investment, Identifier [Axis]: Haystack Holdings LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[42],[50] 0.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[42],[50] $ 12,574,000  
Interest rate [35],[37],[38],[40],[42],[50] 9.10%  
Basis spread on variable rate [35],[37],[38],[40],[42],[50] 4.75%  
Investment, Identifier [Axis]: Haystack Holdings LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[50] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[50] $ (2,000)  
Interest rate [4],[35],[37],[40],[50] 9.10%  
Basis spread on variable rate [4],[35],[37],[40],[50] 4.75%  
Investment, Identifier [Axis]: HeartHealth Bidco Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[37],[38],[40],[58] 0.00% [2],[10],[29],[31],[33],[43],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[57] $ 602,000  
Fair value at ending balance $ 700,000 [6],[35],[37],[38],[40],[58] $ 602,000 [10],[29],[31],[33],[43],[57]
Interest rate 8.90% [6],[35],[37],[38],[40],[58] 9.70% [10],[29],[31],[33],[43],[57]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[58] 5.25% [10],[29],[31],[33],[43],[57]
Investment, Identifier [Axis]: Heartland Veterinary Partners, LLC, Subordinated Term Loan    
Percent of net assets 0.30% [1],[4],[35] 0.40% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 7,126,000  
Fair value at ending balance $ 7,847,000 [4],[35] $ 7,126,000 [8],[33]
Interest, pik 11.00% [4],[35] 11.00% [8],[33]
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.80% [1],[35],[38],[40],[41],[42] 1.10% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 22,351,000  
Fair value at ending balance $ 22,180,000 [35],[38],[40],[41],[42] $ 22,351,000 [29],[30],[31],[32],[33]
Interest rate 8.80% [35],[38],[40],[41],[42] 10.10% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.75% [35],[38],[40],[41],[42] 5.50% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Heavy Construction Systems Specialists, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[41] 10.10% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Heilbron (f/k/a Sucsez (Bolt Bidco B.V.)), First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 8,325,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 8,325,000
Interest rate [10],[29],[31],[33],[53]   9.30%
Basis spread on variable rate [10],[29],[31],[33],[53]   5.75%
Investment, Identifier [Axis]: Heilbron (f/k/a Sucsez (Bolt Bidco B.V.)), First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 4,413,000  
Interest rate [6],[35],[38],[40],[54] 7.80%  
Basis spread on variable rate [6],[35],[38],[40],[54] 5.75%  
Investment, Identifier [Axis]: Heilbron (f/k/a Sucsez (Bolt Bidco B.V.)), First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 5,277,000  
Interest rate [6],[35],[38],[40],[54] 8.60%  
Basis spread on variable rate [6],[35],[38],[40],[54] 6.50%  
Investment, Identifier [Axis]: HemaSource, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 227,000  
Fair value at ending balance $ 243,000 [4],[35],[49] $ 227,000 [8],[11],[33]
Investment owned, balance (in shares) 184,282 [4],[35],[49] 184,282 [8],[11],[33]
Investment, Identifier [Axis]: HemaSource, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[39],[40],[42] 0.40% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 7,626,000  
Fair value at ending balance $ 7,029,000 [35],[39],[40],[42] $ 7,626,000 [29],[31],[33],[48]
Interest rate 8.90% [35],[39],[40],[42] 9.30% [29],[31],[33],[48]
Basis spread on variable rate 4.75% [35],[39],[40],[42] 4.75% [29],[31],[33],[48]
Investment, Identifier [Axis]: HemaSource, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[39],[40] $ 0 [8],[31],[33],[43],[48]
Interest rate 8.90% [4],[35],[37],[39],[40] 9.30% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [4],[35],[37],[39],[40] 4.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Herbalife Ltd., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[6],[37],[39],[40] 0.70% [2],[8],[10],[31],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[48] $ 13,174,000  
Fair value at ending balance $ 5,049,000 [4],[6],[37],[39],[40] $ 13,174,000 [8],[10],[31],[48]
Interest rate 10.90% [4],[6],[37],[39],[40] 12.10% [8],[10],[31],[48]
Basis spread on variable rate 6.75% [4],[6],[37],[39],[40] 6.75% [8],[10],[31],[48]
Investment, Identifier [Axis]: High Street Buyer Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 1,624,000  
Interest rate [35],[37],[38],[40],[41] 8.50%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.50%  
Investment, Identifier [Axis]: Home Care Assistance, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[35],[38],[40],[41] 0.10% [2],[8],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33] $ 1,438,000  
Fair value at ending balance $ 1,322,000 [4],[35],[38],[40],[41] $ 1,438,000 [8],[29],[30],[31],[33]
Interest rate 9.40% [4],[35],[38],[40],[41] 9.50% [8],[29],[30],[31],[33]
Interest, pik [4],[35],[38],[40],[41] 1.00%  
Basis spread on variable rate 5.00% [4],[35],[38],[40],[41] 5.00% [8],[29],[30],[31],[33]
Investment, Identifier [Axis]: HomeX Services Group LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[37],[38],[40],[41],[42] 0.70% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 14,767,000  
Fair value at ending balance $ 17,101,000 [35],[37],[38],[40],[41],[42] $ 14,767,000 [29],[30],[31],[32],[33],[43]
Interest rate 8.70% [35],[37],[38],[40],[41],[42] 9.10% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 4.50% [35],[37],[38],[40],[41],[42] 4.50% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: HomeX Services Group LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (34,000)  
Fair value at ending balance $ 338,000 [4],[35],[37],[40],[41] $ (34,000) [8],[30],[31],[33],[43]
Interest rate 8.70% [4],[35],[37],[40],[41] 9.10% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[41] 4.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Honour Lane Logistics Holdings Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[6],[35],[38],[40],[50] 0.70% [2],[10],[29],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 14,537,000  
Fair value at ending balance $ 14,583,000 [6],[35],[38],[40],[50] $ 14,537,000 [10],[29],[31],[33],[51]
Interest rate 9.10% [6],[35],[38],[40],[50] 10.30% [10],[29],[31],[33],[51]
Basis spread on variable rate 4.85% [6],[35],[38],[40],[50] 5.00% [10],[29],[31],[33],[51]
Investment, Identifier [Axis]: Hydratech Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[33],[43]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 7,106,000  
Fair value at ending balance [29],[30],[31],[33],[43]   $ 7,106,000
Interest rate [29],[30],[31],[33],[43]   9.60%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.00%
Investment, Identifier [Axis]: Hydratech Holdings, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[35],[37],[38],[40],[41],[42] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41],[42] $ 8,577,000  
Interest rate [35],[37],[38],[40],[41],[42] 9.30%  
Basis spread on variable rate [35],[37],[38],[40],[41],[42] 5.25%  
Investment, Identifier [Axis]: Hydratech Holdings, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 254,000  
Fair value at ending balance $ 489,000 [4],[35],[37],[40],[41] $ 254,000 [8],[30],[31],[33],[43]
Interest rate 9.30% [4],[35],[37],[40],[41] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Hygie 31 Holding, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[10],[29],[31],[33],[53]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 566,000  
Fair value at ending balance [8],[10],[29],[31],[33],[53]   $ 566,000
Interest rate [8],[10],[29],[31],[33],[53]   8.80%
Basis spread on variable rate [8],[10],[29],[31],[33],[53]   5.63%
Investment, Identifier [Axis]: ICREDITWORKS LLC, Preferred Stock    
Percent of net assets [1],[4],[35] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 5,316,000  
Interest rate [4],[35] 10.00%  
Interest, pik [4],[35] 7.50%  
Investment owned, balance (in shares) [4],[35] 29,731.3  
Investment, Identifier [Axis]: ICREDITWORKS LLC, Warrants    
Percent of net assets [1],[4],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[49] $ 0  
Investment owned, balance (in shares) [4],[35],[49] 11,846.1  
Investment, Identifier [Axis]: IM Square, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.20% [1],[4],[6],[35],[38],[40],[45] 0.20% [2],[8],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[46] $ 4,255,000  
Fair value at ending balance $ 4,861,000 [4],[6],[35],[38],[40],[45] $ 4,255,000 [8],[10],[29],[31],[33],[46]
Interest rate 7.60% [4],[6],[35],[38],[40],[45] 8.80% [8],[10],[29],[31],[33],[46]
Basis spread on variable rate 5.55% [4],[6],[35],[38],[40],[45] 5.50% [8],[10],[29],[31],[33],[46]
Investment, Identifier [Axis]: IM Square, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 3,254,000  
Fair value at ending balance $ 3,760,000 [6],[35],[38],[40],[45] $ 3,254,000 [10],[29],[31],[33],[46]
Interest rate 8.10% [6],[35],[38],[40],[45] 9.30% [10],[29],[31],[33],[46]
Basis spread on variable rate 6.00% [6],[35],[38],[40],[45] 6.00% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: ISTO Technologies II, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[33],[51]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[51] $ 6,822,000  
Fair value at ending balance [29],[31],[33],[51]   $ 6,822,000
Interest rate [29],[31],[33],[51]   9.60%
Basis spread on variable rate [29],[31],[33],[51]   5.00%
Investment, Identifier [Axis]: ISTO Technologies II, LLC, Revolver    
Percent of net assets [2],[8],[31],[33],[43],[51]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ (3,000)  
Fair value at ending balance [8],[31],[33],[43],[51]   $ (3,000)
Interest rate [8],[31],[33],[43],[51]   9.60%
Basis spread on variable rate [8],[31],[33],[43],[51]   5.00%
Investment, Identifier [Axis]: ITI Intermodal, Inc., Common Stock    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 915,000  
Fair value at ending balance $ 984,000 [35],[49] $ 915,000 [11],[33]
Investment owned, balance (in shares) 7,500.4 [35],[49] 7,500.4 [11],[33]
Investment, Identifier [Axis]: ITI Intermodal, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[35],[38],[40],[41],[42] 0.00% [2],[29],[31],[32],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[51] $ 800,000  
Fair value at ending balance $ 795,000 [35],[38],[40],[41],[42] $ 800,000 [29],[31],[32],[33],[51]
Interest rate 10.10% [35],[38],[40],[41],[42] 10.60% [29],[31],[32],[33],[51]
Basis spread on variable rate 6.00% [35],[38],[40],[41],[42] 6.25% [29],[31],[32],[33],[51]
Investment, Identifier [Axis]: ITI Intermodal, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets 0.50% [1],[4],[35],[40],[41] 0.60% [2],[8],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[51] $ 12,078,000  
Fair value at ending balance $ 11,986,000 [4],[35],[40],[41] $ 12,078,000 [8],[31],[33],[51]
Interest rate 10.40% [4],[35],[40],[41] 10.80% [8],[31],[33],[51]
Basis spread on variable rate 6.25% [4],[35],[40],[41] 6.50% [8],[31],[33],[51]
Investment, Identifier [Axis]: ITI Intermodal, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ 225,000  
Fair value at ending balance $ 226,000 [4],[35],[37],[40],[41] $ 225,000 [8],[31],[33],[43],[51]
Interest rate 10.40% [4],[35],[37],[40],[41] 10.80% [8],[31],[33],[43],[51]
Basis spread on variable rate 6.25% [4],[35],[37],[40],[41] 6.50% [8],[31],[33],[43],[51]
Investment, Identifier [Axis]: Ice House America, L.L.C., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[37],[38],[40],[41],[42] 0.20% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 4,267,000  
Fair value at ending balance $ 4,169,000 [35],[37],[38],[40],[41],[42] $ 4,267,000 [29],[30],[31],[33],[43]
Interest rate 9.80% [35],[37],[38],[40],[41],[42] 10.10% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [35],[37],[38],[40],[41],[42] 5.50% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Ice House America, L.L.C., LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 473,000  
Fair value at ending balance $ 339,000 [35],[49] $ 473,000 [11],[33]
Investment owned, balance (in shares) 4,338.2 [35],[49] 4,248.6 [11],[33]
Investment, Identifier [Axis]: Ice House America, L.L.C., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 279,000  
Fair value at ending balance $ 557,000 [4],[35],[37],[40],[41] $ 279,000 [8],[30],[31],[33],[43]
Interest rate 9.80% [4],[35],[37],[40],[41] 10.10% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[41] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Image International Intermediate Holdco II, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[33]   1.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 23,352,000  
Fair value at ending balance [29],[30],[31],[33]   $ 23,352,000
Interest rate [29],[30],[31],[33]   10.20%
Basis spread on variable rate [29],[30],[31],[33]   5.50%
Investment, Identifier [Axis]: Image International Intermediate Holdco II, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[35],[38],[40],[41] 0.70%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 18,385,000  
Interest rate [35],[40],[41] 9.90%  
Interest, pik [35],[40],[41] 0.50%  
Basis spread on variable rate [35],[40],[41] 5.50%  
Investment, Identifier [Axis]: Image International Intermediate Holdco II, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[35],[38],[40],[41] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 4,518,000  
Interest rate [35],[38],[40],[41] 9.90%  
Basis spread on variable rate [35],[38],[40],[41] 5.50%  
Investment, Identifier [Axis]: Infoblox, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 2,963,000  
Interest rate [40],[41],[44] 6.80%  
Basis spread on variable rate [40],[41],[44] 2.75%  
Investment, Identifier [Axis]: Infoniqa Holdings GmbH, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.40% [1],[6],[35],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 3,902,000  
Fair value at ending balance $ 9,584,000 [6],[35],[38],[40],[45] $ 3,902,000 [10],[29],[31],[33],[53]
Interest rate 6.80% [6],[35],[38],[40],[45] 8.10% [10],[29],[31],[33],[53]
Basis spread on variable rate 4.75% [6],[35],[38],[40],[45] 4.75% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Infoniqa Holdings GmbH, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[43],[53]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 545,000  
Fair value at ending balance [10],[29],[31],[33],[43],[53]   $ 545,000
Interest rate [10],[29],[31],[33],[43],[53]   8.10%
Basis spread on variable rate [10],[29],[31],[33],[43],[53]   4.75%
Investment, Identifier [Axis]: Innovad Group II BV, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[4],[6],[35],[38],[40],[45] 0.10% [2],[8],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 1,011,000  
Fair value at ending balance $ 1,147,000 [4],[6],[35],[38],[40],[45] $ 1,011,000 [8],[10],[29],[31],[33],[53]
Interest rate 6.80% [4],[6],[35],[38],[40],[45] 8.70% [8],[10],[29],[31],[33],[53]
Basis spread on variable rate 4.75% [4],[6],[35],[38],[40],[45] 5.00% [8],[10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Innovad Group II BV, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[73] 0.00% [2],[8],[10],[31],[33],[74]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[74] $ 160,000  
Fair value at ending balance $ 182,000 [4],[6],[35],[40],[73] $ 160,000 [8],[10],[31],[33],[74]
Interest rate 4.80% [4],[6],[35],[40],[73] 6.00% [8],[10],[31],[33],[74]
Basis spread on variable rate 4.75% [4],[6],[35],[40],[73] 5.00% [8],[10],[31],[33],[74]
Investment, Identifier [Axis]: International Fleet Financing No.2 B.V., Class C Senior Secured Note    
Percent of net assets [1],[4],[6],[35],[37] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[37] $ 1,754,000  
Interest rate [4],[6],[35],[37] 10.50%  
Investment, Identifier [Axis]: Interstellar Group B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 3,018,000  
Fair value at ending balance $ 3,458,000 [6],[35],[37],[38],[40],[45] $ 3,018,000 [10],[29],[31],[33],[43],[46]
Interest rate 8.30% [6],[35],[37],[38],[40],[45] 9.60% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 6.25% [6],[35],[37],[38],[40],[45] 6.00% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: InvoCare Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[37],[38],[40],[58] 0.20% [2],[10],[29],[31],[33],[43],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[57] $ 3,925,000  
Fair value at ending balance $ 4,292,000 [6],[35],[37],[38],[40],[58] $ 3,925,000 [10],[29],[31],[33],[43],[57]
Interest rate 9.80% [6],[35],[37],[38],[40],[58] 10.70% [10],[29],[31],[33],[43],[57]
Basis spread on variable rate 6.25% [6],[35],[37],[38],[40],[58] 6.25% [10],[29],[31],[33],[43],[57]
Investment, Identifier [Axis]: Iridium Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[59] 0.30% [2],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 4,956,000  
Fair value at ending balance $ 5,637,000 [6],[35],[38],[40],[59] $ 4,956,000 [10],[29],[31],[33],[62]
Interest rate 11.00% [6],[35],[38],[40],[59] 11.50% [10],[29],[31],[33],[62]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[59] 6.50% [10],[29],[31],[33],[62]
Investment, Identifier [Axis]: Isolstar Holding NV (IPCOM), First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[6],[35],[38],[40],[45] 0.50% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 10,149,000  
Fair value at ending balance $ 11,572,000 [6],[35],[38],[40],[45] $ 10,149,000 [10],[29],[31],[33],[46]
Interest rate 7.30% [6],[35],[38],[40],[45] 9.20% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[45] 6.00% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: J&J Ventures Gaming, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[39],[40] 1.90%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[39],[40] $ 49,500,000  
Interest rate [35],[38],[39],[40] 9.20%  
Basis spread on variable rate [35],[38],[39],[40] 5.00%  
Investment, Identifier [Axis]: JPMorgan Chase & Co., JPMorgan Prime Money Market Fund    
Percent of net assets 0.40% [1],[4] 0.50% [2],[8]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8] $ 10,200,000  
Fair value at ending balance $ 10,702,000 [4] $ 10,200,000 [8]
Interest rate 5.40% [4] 5.40% [8]
Investment owned, balance (in shares) 10,699,632 [4] 10,198,318 [8]
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's), First Lien Senior Secured Term Loan 1    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[54] 0.20% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 3,417,000  
Fair value at ending balance $ 3,883,000 [6],[35],[38],[40],[54] $ 3,417,000 [10],[29],[31],[33],[53]
Interest rate 7.30% [6],[35],[38],[40],[54] 7.90% [10],[29],[31],[33],[53]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[54] 5.25% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Jade Bidco Limited (Jane's), First Lien Senior Secured Term Loan 2    
Percent of net assets 0.80% [1],[6],[35],[38],[40],[50] 1.10% [2],[10],[29],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 21,146,000  
Fair value at ending balance $ 21,141,000 [6],[35],[38],[40],[50] $ 21,146,000 [10],[29],[31],[33],[51]
Interest rate 9.60% [6],[35],[38],[40],[50] 9.80% [10],[29],[31],[33],[51]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[50] 5.25% [10],[29],[31],[33],[51]
Investment, Identifier [Axis]: JetBlue Airways Corporation, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[6],[40],[41],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[40],[41],[44] $ 6,197,000  
Interest rate [4],[6],[40],[41],[44] 8.70%  
Basis spread on variable rate [4],[6],[40],[41],[44] 4.75%  
Investment, Identifier [Axis]: Jon Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[37],[38],[40],[71] 0.20% [2],[10],[29],[31],[33],[43],[72]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[72] $ 3,787,000  
Fair value at ending balance $ 3,990,000 [6],[35],[37],[38],[40],[71] $ 3,787,000 [10],[29],[31],[33],[43],[72]
Interest rate 7.10% [6],[35],[37],[38],[40],[71] 9.50% [10],[29],[31],[33],[43],[72]
Basis spread on variable rate 4.25% [6],[35],[37],[38],[40],[71] 4.50% [10],[29],[31],[33],[43],[72]
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.10% [1],[4],[35],[38],[40],[50] 0.40% [2],[8],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33] $ 8,043,000  
Fair value at ending balance $ 29,152,000 [4],[35],[38],[40],[50] $ 8,043,000 [8],[29],[30],[31],[33]
Interest rate 9.80% [4],[35],[38],[40],[50] 10.00% [8],[29],[30],[31],[33]
Basis spread on variable rate 5.50% [4],[35],[38],[40],[50] 5.50% [8],[29],[30],[31],[33]
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 372,000  
Fair value at ending balance $ 827,000 [35] $ 372,000 [33]
Investment owned, balance (in shares) 1,018 [35] 1,018 [33]
Investment, Identifier [Axis]: Jones Fish Hatcheries & Distributors LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 80,000 [4],[35],[37],[40],[50] $ 0 [8],[30],[31],[33],[43]
Interest rate 9.80% [4],[35],[37],[40],[50] 10.00% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.50% [4],[35],[37],[40],[50] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: KAMC Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 10,736,000  
Interest rate [35],[38],[40],[41] 9.50%  
Basis spread on variable rate [35],[38],[40],[41] 5.25%  
Investment, Identifier [Axis]: KAMC Holdings Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ 311,000  
Interest rate [4],[35],[37],[40],[41] 9.50%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.25%  
Investment, Identifier [Axis]: KSLB Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.80% [1],[35],[38],[40],[41] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,699,000  
Fair value at ending balance $ 21,264,000 [35],[38],[40],[41] $ 5,699,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[38],[40],[41] 9.20% [29],[30],[31],[33]
Basis spread on variable rate 4.75% [35],[38],[40],[41] 4.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Kaseya, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[38],[39] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [38],[39] $ 998,000  
Interest rate [38],[39] 7.40%  
Basis spread on variable rate [38],[39] 3.25%  
Investment, Identifier [Axis]: Keystone Bidco B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[37],[38],[40],[54] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 677,000  
Fair value at ending balance $ 918,000 [6],[35],[37],[38],[40],[54] $ 677,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.30% [6],[35],[37],[38],[40],[54] 8.10% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[54] 5.25% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Keystone Bidco B.V., Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[37],[40],[54] 0.00% [2],[8],[10],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[46] $ 18,000  
Fair value at ending balance $ 10,000 [4],[6],[35],[37],[40],[54] $ 18,000 [8],[10],[31],[33],[43],[46]
Interest rate 7.30% [4],[6],[35],[37],[40],[54] 8.10% [8],[10],[31],[33],[43],[46]
Basis spread on variable rate 5.25% [4],[6],[35],[37],[40],[54] 5.25% [8],[10],[31],[33],[43],[46]
Investment, Identifier [Axis]: Kid Distro Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.10% [1],[35],[38],[40],[42],[50] 1.50% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 30,009,000  
Fair value at ending balance $ 29,815,000 [35],[38],[40],[42],[50] $ 30,009,000 [29],[30],[31],[32],[33]
Interest rate 9.20% [35],[38],[40],[42],[50] 9.50% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.75% [35],[38],[40],[42],[50] 4.75% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Kid Distro Holdings, LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.10% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 1,286,000  
Fair value at ending balance $ 1,201,000 [35],[49] $ 1,286,000 [11],[33]
Investment owned, balance (in shares) 1,062,795.2 [35],[49] 1,062,795.2 [11],[33]
Investment, Identifier [Axis]: Kline Hill Partners LP, Common Stock    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 491,000  
Investment owned, balance (in shares) [35],[49] 496,461  
Investment, Identifier [Axis]: Kline Hill Partners LP, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.80%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 21,300,000  
Interest rate [35],[37],[38],[40],[41] 8.50%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.50%  
Investment, Identifier [Axis]: Kline Hill Partners LP, Revolver    
Percent of net assets [1],[4],[35],[37],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[41] $ (87,000)  
Interest rate [4],[35],[37],[41] 8.50%  
Basis spread on variable rate [4],[35],[37],[41] 4.50%  
Investment, Identifier [Axis]: Kline Hill Partners LP, Subordinated Term Loan    
Percent of net assets [1],[4],[35] 0.90%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 23,388,000  
Interest rate [4],[35] 12.50%  
Investment, Identifier [Axis]: Kodiak BP LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,983,000  
Interest rate [40],[41],[44] 7.80%  
Basis spread on variable rate [40],[41],[44] 3.75%  
Investment, Identifier [Axis]: LBM Acquisition LLC , First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 2,986,000  
Interest rate [39],[40],[44] 9.10%  
Basis spread on variable rate [39],[40],[44] 5.00%  
Investment, Identifier [Axis]: LHS Borrower, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[39],[40] 1.90%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[39],[40] $ 50,165,000  
Interest rate [35],[38],[39],[40] 9.50%  
Basis spread on variable rate [35],[38],[39],[40] 5.25%  
Investment, Identifier [Axis]: LHS Borrower, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (69,000)  
Interest rate [4],[35],[37],[39],[40] 9.50%  
Basis spread on variable rate [4],[35],[37],[39],[40] 5.25%  
Investment, Identifier [Axis]: Lambir Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[54] 0.10% [2],[10],[29],[31],[33],[43],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 2,327,000  
Fair value at ending balance $ 2,718,000 [6],[35],[37],[38],[40],[54] $ 2,327,000 [10],[29],[31],[33],[43],[53]
Interest rate 8.30% [6],[35],[37],[38],[40],[54] 8.70% [10],[29],[31],[33],[43],[53]
Basis spread on variable rate 6.25% [6],[35],[37],[38],[40],[54] 6.00% [10],[29],[31],[33],[43],[53]
Investment, Identifier [Axis]: Lambir Bidco Limited, Second Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 798,000  
Fair value at ending balance $ 922,000 [4],[6],[35] $ 798,000 [8],[10],[33]
Interest, pik 12.00% [4],[6],[35] 12.00% [8],[10],[33]
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[43],[51]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[51] $ 687,000  
Fair value at ending balance [10],[29],[31],[33],[43],[51]   $ 687,000
Interest rate [10],[29],[31],[33],[43],[51]   10.60%
Basis spread on variable rate [10],[29],[31],[33],[43],[51]   5.75%
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[50] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[50] $ 608,000  
Interest rate [6],[35],[38],[40],[50] 10.10%  
Basis spread on variable rate [6],[35],[38],[40],[50] 5.75%  
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[6],[35],[37],[38],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[41] $ 127,000  
Interest rate [6],[35],[37],[38],[40],[41] 9.90%  
Basis spread on variable rate [6],[35],[37],[38],[40],[41] 5.75%  
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, First Lien Senior Secured Term Loan 3    
Percent of net assets [1],[6],[35],[38],[40],[61] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[61] $ 154,000  
Interest rate [6],[35],[38],[40],[61] 10.00%  
Basis spread on variable rate [6],[35],[38],[40],[61] 5.75%  
Investment, Identifier [Axis]: Lattice Group Holdings Bidco Limited, Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[50] 0.00% [2],[8],[10],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[51] $ (1,000)  
Fair value at ending balance $ 35,000 [4],[6],[35],[40],[50] $ (1,000) [8],[10],[31],[33],[43],[51]
Interest rate 10.10% [4],[6],[35],[40],[50] 10.60% [8],[10],[31],[33],[43],[51]
Basis spread on variable rate 5.75% [4],[6],[35],[40],[50] 5.75% [8],[10],[31],[33],[43],[51]
Investment, Identifier [Axis]: LeadsOnline, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.00% [1],[35],[38],[40],[41],[42] 1.30% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 25,492,000  
Fair value at ending balance $ 25,329,000 [35],[38],[40],[41],[42] $ 25,492,000 [29],[30],[31],[32],[33]
Interest rate 8.50% [35],[38],[40],[41],[42] 9.40% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.50% [35],[38],[40],[41],[42] 4.75% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: LeadsOnline, LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 135,000  
Fair value at ending balance $ 149,000 [35] $ 135,000 [33]
Investment owned, balance (in shares) 61,304.4 [35] 61,304.4 [33]
Investment, Identifier [Axis]: LeadsOnline, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (13,000)  
Fair value at ending balance $ (9,000) [4],[35],[37],[40],[41] $ (13,000) [8],[30],[31],[33],[43]
Interest rate 8.50% [4],[35],[37],[40],[41] 9.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Learfield Communications, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[31],[48]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[48] $ 2,115,000  
Fair value at ending balance [8],[31],[48]   $ 2,115,000
Interest rate [8],[31],[48]   9.60%
Basis spread on variable rate [8],[31],[48]   5.00%
Investment, Identifier [Axis]: LifePoint Health Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,736,000  
Interest rate [40],[41],[44] 7.70%  
Basis spread on variable rate [40],[41],[44] 3.50%  
Investment, Identifier [Axis]: LifePoint Health Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 2,985,000  
Interest rate [40],[41],[44] 8.10%  
Basis spread on variable rate [40],[41],[44] 3.75%  
Investment, Identifier [Axis]: Liftoff Mobile, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[44] $ 4,859,000  
Interest rate [39],[40],[44] 8.20%  
Basis spread on variable rate [40],[44] 4.00%  
Investment, Identifier [Axis]: Listrac Bidco Limited, Common Stock    
Percent of net assets [2],[8],[10],[11],[33]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 1,610,000  
Fair value at ending balance [8],[10],[11],[33]   $ 1,610,000
Investment owned, balance (in shares) [8],[10],[11],[33]   255
Investment, Identifier [Axis]: Listrac Bidco Limited, Common StockGbp    
Percent of net assets [1],[4],[6],[35],[49] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[49] $ 1,899,000  
Investment owned, balance (in shares) [4],[6],[35],[49] 255  
Investment, Identifier [Axis]: Listrac Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[4],[6],[35],[61] 0.00% [2],[8],[10],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33],[62] $ 169,000  
Fair value at ending balance $ 190,000 [4],[6],[35],[61] $ 169,000 [8],[10],[33],[62]
Interest rate 16.00% [4],[6],[35],[61] 17.00% [8],[10],[33],[62]
Basis spread on variable rate 12.00% [4],[6],[35],[61] 12.00% [8],[10],[33],[62]
Investment, Identifier [Axis]: Listrac Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[4],[6],[35],[61] 0.10% [2],[8],[10],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33],[62] $ 992,000  
Fair value at ending balance $ 1,066,000 [4],[6],[35],[61] $ 992,000 [8],[10],[33],[62]
Interest rate 10.00% [4],[6],[35],[61] 11.00% [8],[10],[33],[62]
Basis spread on variable rate 6.00% [4],[6],[35],[61] 6.00% [8],[10],[33],[62]
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 13,700,000  
Interest rate [35],[37],[38],[40],[41] 9.30%  
Basis spread on variable rate [35],[37],[38],[40],[41] 5.00%  
Investment, Identifier [Axis]: Lockmasters Security Intermediate, Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (8,000)  
Interest rate [4],[35],[37],[39],[40] 8.80%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.50%  
Investment, Identifier [Axis]: Long Term Care Group, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.20% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 4,095,000  
Fair value at ending balance $ 4,386,000 [35],[38],[40],[41] $ 4,095,000 [29],[30],[31],[33]
Interest rate 10.60% [35],[38],[40],[41] 8.10% [29],[30],[31],[33]
Interest, pik [29],[30],[31],[33]   3.70%
Basis spread on variable rate 6.00% [35],[38],[40],[41] 3.27% [29],[30],[31],[33]
Investment, Identifier [Axis]: M-Personal Protection Management GMBH, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[45] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[45] $ 11,750,000  
Interest rate 7.00% [6],[35],[38],[40],[45] 8.10% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[45] 5.38% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: M-Personal Protection Management GmbH (f/k/a INOS 19-090 GmbH), First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[46]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 10,096,000  
Fair value at ending balance [10],[29],[31],[33],[46]   $ 10,096,000
Investment, Identifier [Axis]: MB Purchaser, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[37],[38],[40],[41] 0.20% [2],[29],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[43],[48] $ 3,775,000  
Fair value at ending balance $ 5,519,000 [35],[37],[38],[40],[41] $ 3,775,000 [29],[31],[33],[43],[48]
Interest rate 9.00% [35],[37],[38],[40],[41] 9.40% [29],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41] 4.75% [29],[31],[33],[43],[48]
Investment, Identifier [Axis]: MB Purchaser, LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 218,000  
Fair value at ending balance $ 236,000 [35],[49] $ 218,000 [11],[33]
Investment owned, balance (in shares) 175 [35],[49] 175 [11],[33]
Investment, Identifier [Axis]: MB Purchaser, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (4,000)  
Fair value at ending balance $ (7,000) [4],[35],[37],[40],[41] $ (4,000) [8],[31],[33],[43],[48]
Interest rate 9.00% [4],[35],[37],[40],[41] 9.40% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 4.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: MC Group Ventures Corporation, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.30% [1],[35],[37],[38],[40],[41],[42] 0.40% [2],[29],[31],[32],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[43],[48] $ 7,950,000  
Fair value at ending balance $ 7,761,000 [35],[37],[38],[40],[41],[42] $ 7,950,000 [29],[31],[32],[33],[43],[48]
Interest rate 9.70% [35],[37],[38],[40],[41],[42] 9.90% [29],[31],[32],[33],[43],[48]
Basis spread on variable rate 5.25% [35],[37],[38],[40],[41],[42] 5.25% [29],[31],[32],[33],[43],[48]
Investment, Identifier [Axis]: MC Group Ventures Corporation, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.30% [1],[35],[37],[38],[40],[41],[42] 0.30% [2],[29],[31],[32],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[43],[51] $ 6,374,000  
Fair value at ending balance $ 6,667,000 [35],[37],[38],[40],[41],[42] $ 6,374,000 [29],[31],[32],[33],[43],[51]
Interest rate 9.90% [35],[37],[38],[40],[41],[42] 10.20% [29],[31],[32],[33],[43],[51]
Basis spread on variable rate 5.50% [35],[37],[38],[40],[41],[42] 5.50% [29],[31],[32],[33],[43],[51]
Investment, Identifier [Axis]: MC Group Ventures Corporation, Partnership Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 511,000  
Fair value at ending balance $ 449,000 [4],[35],[49] $ 511,000 [8],[11],[33]
Investment owned, balance (in shares) 560 [4],[35],[49] 560 [8],[11],[33]
Investment, Identifier [Axis]: MI OpCo Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[31],[48]   1.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[48] $ 25,500,000  
Fair value at ending balance [8],[31],[48]   $ 25,500,000
Interest rate [8],[31],[48]   11.80%
Basis spread on variable rate [8],[31],[48]   7.25%
Investment, Identifier [Axis]: MIV Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 5,257,000  
Interest rate [35],[37],[38],[40],[41] 8.80%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.75%  
Investment, Identifier [Axis]: MIV Buyer, LLC, LLC Units    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 202,000  
Investment owned, balance (in shares) [35],[49] 2,020.4  
Investment, Identifier [Axis]: MIV Buyer, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (12,000)  
Interest rate [4],[35],[37],[40],[41] 8.80%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.75%  
Investment, Identifier [Axis]: MNS Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38],[39],[40] 0.00% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 662,000  
Fair value at ending balance $ 348,000 [35],[38],[39],[40] $ 662,000 [29],[30],[31],[33]
Interest rate 9.30% [35],[38],[39],[40] 9.50% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[39],[40] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: MNS Buyer, Inc., Partnership Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 106,000  
Fair value at ending balance $ 189,000 [4],[35],[49] $ 106,000 [8],[11],[33]
Investment owned, balance (in shares) 76,923.1 [4],[35],[49] 76,923 [8],[11],[33]
Investment, Identifier [Axis]: MSI Express Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 8,095,000  
Interest rate [35],[37],[38],[40],[41] 8.50%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.50%  
Investment, Identifier [Axis]: MSI Express Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ 2,169,000  
Interest rate [4],[35],[37],[40],[41] 7.80%  
Basis spread on variable rate [4],[35],[37],[40],[41] 3.75%  
Investment, Identifier [Axis]: Marmoutier Holding B.V., Common Stock    
Percent of net assets [1],[4],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[38],[49] $ 0  
Investment owned, balance (in shares) [4],[6],[35],[38],[49] 2,600,701  
Investment, Identifier [Axis]: Marmoutier Holding B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[37],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[53],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53],[67] $ 146,000  
Fair value at ending balance $ 39,000 [4],[6],[35],[37],[40],[45] $ 146,000 [10],[29],[31],[33],[43],[53],[67]
Interest, pik 8.50% [4],[6],[35],[37],[40],[45] 10.40% [10],[29],[31],[33],[43],[53],[67]
Basis spread on variable rate 6.50% [4],[6],[35],[37],[40],[45] 6.50% [10],[29],[31],[33],[43],[53],[67]
Investment, Identifier [Axis]: Marmoutier Holding B.V., Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[45] 0.00% [2],[8],[10],[31],[33],[43],[53],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[53],[67] $ (53,000)  
Fair value at ending balance $ 146,000 [4],[6],[35],[40],[45] $ (53,000) [8],[10],[31],[33],[43],[53],[67]
Interest, pik 7.50% [4],[6],[35],[40],[45] 6.70% [8],[10],[31],[33],[43],[53],[67]
Basis spread on variable rate 5.50% [4],[6],[35],[40],[45] 5.75% [8],[10],[31],[33],[43],[53],[67]
Investment, Identifier [Axis]: Marmoutier Holding B.V., Super Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[54] 0.00% [2],[8],[10],[31],[33],[67]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[67] $ 186,000  
Fair value at ending balance $ 160,000 [4],[6],[35],[40],[54] $ 186,000 [8],[10],[31],[33],[67]
Interest, pik 8.30% [4],[6],[35],[40],[54] 6.00% [8],[10],[31],[33],[67]
Basis spread on variable rate [4],[6],[35],[40],[54] 6.25%  
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), First Lien Senior Secured Term Loan 1    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,346,000  
Fair value at ending balance $ 5,366,000 [35],[38],[40],[41] $ 5,346,000 [29],[30],[31],[33]
Interest rate 8.50% [35],[38],[40],[41] 9.50% [29],[30],[31],[33]
Basis spread on variable rate 4.50% [35],[38],[40],[41] 4.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), First Lien Senior Secured Term Loan 2    
Percent of net assets 0.40% [1],[35],[38],[40],[55] 0.60% [2],[29],[31],[33],[75]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[75] $ 11,550,000  
Fair value at ending balance $ 11,199,000 [35],[38],[40],[55] $ 11,550,000 [29],[31],[33],[75]
Interest rate 8.60% [35],[38],[40],[55] 9.60% [29],[31],[33],[75]
Basis spread on variable rate 4.50% [35],[38],[40],[55] 4.75% [29],[31],[33],[75]
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), Revolver 1    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (26,000)  
Fair value at ending balance $ 105,000 [4],[35],[37],[40],[41] $ (26,000) [8],[30],[31],[33],[43]
Interest rate 8.50% [4],[35],[37],[40],[41] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Media Recovery, Inc. (SpotSee), Revolver 2    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[55] 0.00% [2],[8],[31],[33],[43],[75]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[75] $ (31,000)  
Fair value at ending balance $ (24,000) [4],[35],[37],[40],[55] $ (31,000) [8],[31],[33],[43],[75]
Interest rate 8.60% [4],[35],[37],[40],[55] 9.60% [8],[31],[33],[43],[75]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[55] 4.75% [8],[31],[33],[43],[75]
Investment, Identifier [Axis]: Median B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[38],[40],[59] 0.30% [2],[10],[29],[31],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[62] $ 5,958,000  
Fair value at ending balance $ 6,531,000 [6],[38],[40],[59] $ 5,958,000 [10],[29],[31],[62]
Interest rate 10.00% [6],[38],[40],[59] 11.00% [10],[29],[31],[62]
Basis spread on variable rate 5.93% [6],[38],[40],[59] 5.93% [10],[29],[31],[62]
Investment, Identifier [Axis]: Medical Solutions Parent Holdings, Inc., Second Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[38],[40],[41] 0.10% [2],[29],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31] $ 2,211,000  
Fair value at ending balance $ 892,000 [4],[38],[40],[41] $ 2,211,000 [29],[30],[31]
Interest rate 11.40% [4],[38],[40],[41] 11.70% [29],[30],[31]
Basis spread on variable rate 7.00% [4],[38],[40],[41] 7.00% [29],[30],[31]
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 0  
Fair value at ending balance $ 0 [4],[35],[49] $ 0 [8],[11],[33]
Investment owned, balance (in shares) 615 [4],[35],[49] 615 [8],[11],[33]
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[40],[41],[42] 0.40% [2],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 6,984,000  
Fair value at ending balance $ 7,706,000 [35],[40],[41],[42] $ 6,984,000 [30],[31],[32],[33]
Interest rate 9.70% [35],[40],[41],[42] 9.70% [30],[31],[32],[33]
Basis spread on variable rate 5.50% [35],[40],[41],[42] 5.25% [30],[31],[32],[33]
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Preferred Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 138,000  
Fair value at ending balance $ 387,000 [4],[35],[49] $ 138,000 [8],[11],[33]
Investment owned, balance (in shares) 5,524 [4],[35],[49] 5,524 [8],[11],[33]
Investment, Identifier [Axis]: Megawatt Acquisitionco, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 323,000  
Fair value at ending balance $ 199,000 [4],[35],[37],[40],[41] $ 323,000 [8],[30],[31],[33],[43]
Interest rate 9.70% [4],[35],[37],[40],[41] 9.70% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.50% [4],[35],[37],[40],[41] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Mercell Holding AS, Class A Units    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 125,000  
Fair value at ending balance $ 152,000 [4],[6],[35],[49] $ 125,000 [8],[10],[11],[33]
Interest, pik [4],[6],[35],[49] 9.00% [8],[10],[11],[33]
Investment owned, balance (in shares) 114.4 [4],[6],[35],[49] 114.4 [8],[10],[11],[33]
Investment, Identifier [Axis]: Mercell Holding AS, Class B Units    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 21,000  
Fair value at ending balance $ 0 [4],[6],[35],[49] $ 21,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 28,943.8 [4],[6],[35],[49] 28,943.8 [8],[10],[11],[33]
Investment, Identifier [Axis]: Mercell Holding AS, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[76] 0.10% [2],[10],[29],[31],[33],[43],[77]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[77] $ 2,750,000  
Fair value at ending balance $ 3,136,000 [6],[35],[37],[38],[40],[76] $ 2,750,000 [10],[29],[31],[33],[43],[77]
Interest rate 9.10% [6],[35],[37],[38],[40],[76] 10.10% [10],[29],[31],[33],[43],[77]
Basis spread on variable rate 5.00% [6],[35],[37],[38],[40],[76] 5.50% [10],[29],[31],[33],[43],[77]
Investment, Identifier [Axis]: Mertus 522. GmbH, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[54] 0.00% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 394,000  
Fair value at ending balance $ 449,000 [6],[35],[38],[40],[54] $ 394,000 [10],[29],[31],[33],[53]
Interest rate 9.00% [6],[35],[38],[40],[54] 9.70% [10],[29],[31],[33],[53]
Basis spread on variable rate 7.00% [6],[35],[38],[40],[54] 7.00% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Mertus 522. GmbH, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[54] 0.20% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 3,295,000  
Fair value at ending balance $ 3,791,000 [6],[35],[38],[40],[54] $ 3,295,000 [10],[29],[31],[33],[53]
Interest rate 9.60% [6],[35],[38],[40],[54] 10.70% [10],[29],[31],[33],[53]
Basis spread on variable rate 7.50% [6],[35],[38],[40],[54] 7.50% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Metis BidCo Pty Limited, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[57]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 294,000  
Fair value at ending balance [10],[29],[31],[33],[57]   $ 294,000
Interest rate [10],[29],[31],[33],[57]   9.70%
Basis spread on variable rate [10],[29],[31],[33],[57]   5.25%
Investment, Identifier [Axis]: Modern Star Holdings Bidco Pty Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[37],[38],[40],[70] 0.10% [2],[8],[10],[29],[31],[33],[43],[78]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[43],[78] $ 1,759,000  
Fair value at ending balance $ 1,865,000 [4],[6],[35],[37],[38],[40],[70] $ 1,759,000 [8],[10],[29],[31],[33],[43],[78]
Interest rate 9.60% [4],[6],[35],[37],[38],[40],[70] 10.40% [8],[10],[29],[31],[33],[43],[78]
Basis spread on variable rate 6.00% [4],[6],[35],[37],[38],[40],[70] 6.00% [8],[10],[29],[31],[33],[43],[78]
Investment, Identifier [Axis]: Mold-Rite Plastics, LLC, Second Lien Second Out Term Loan    
Percent of net assets 0.00% [1],[38],[41] 0.10% [2],[29],[30]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30] $ 2,837,000  
Fair value at ending balance $ 0 [38],[41] $ 2,837,000 [29],[30]
Interest rate 5.80% [38],[41] 6.10% [29],[30]
Interest, pik 2.30% [38],[41] 2.30% [29],[30]
Basis spread on variable rate 1.50% [38],[41] 1.50% [29],[30]
Investment, Identifier [Axis]: Momentum Textiles, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 10,642,000  
Interest rate [35],[38],[40],[41] 9.50%  
Basis spread on variable rate [35],[38],[40],[41] 5.50%  
Investment, Identifier [Axis]: Momentum Textiles, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (11,000)  
Interest rate [4],[35],[37],[40],[41] 9.50%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.50%  
Investment, Identifier [Axis]: Moonlight Bidco Limited, Common Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 182,000  
Fair value at ending balance $ 210,000 [4],[6],[35],[49] $ 182,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 10,590 [4],[6],[35],[49] 10,590 [8],[10],[11],[33]
Investment, Identifier [Axis]: Moonlight Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[37],[40],[59] 0.10% [2],[8],[10],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[60] $ 1,841,000  
Fair value at ending balance $ 2,000,000 [4],[6],[35],[37],[40],[59] $ 1,841,000 [8],[10],[31],[33],[43],[60]
Interest rate 9.20% [4],[6],[35],[37],[40],[59] 10.70% [8],[10],[31],[33],[43],[60]
Basis spread on variable rate 5.25% [4],[6],[35],[37],[40],[59] 5.75% [8],[10],[31],[33],[43],[60]
Investment, Identifier [Axis]: Murphy Midco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[38],[40],[61] 0.00% [2],[8],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[62] $ 738,000  
Fair value at ending balance $ 753,000 [4],[6],[35],[38],[40],[61] $ 738,000 [8],[10],[29],[31],[33],[62]
Interest rate 10.20% [4],[6],[35],[38],[40],[61] 10.20% [8],[10],[29],[31],[33],[62]
Basis spread on variable rate 5.75% [4],[6],[35],[38],[40],[61] 5.25% [8],[10],[29],[31],[33],[62]
Investment, Identifier [Axis]: Music Reports, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[40],[41],[42] 0.10% [2],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 2,333,000  
Fair value at ending balance $ 2,399,000 [35],[40],[41],[42] $ 2,333,000 [30],[31],[32],[33]
Interest rate 10.70% [35],[40],[41],[42] 10.70% [30],[31],[32],[33]
Basis spread on variable rate 6.25% [35],[40],[41],[42] 6.25% [30],[31],[32],[33]
Investment, Identifier [Axis]: NAPA Management Services Corp, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[38],[39],[40],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[38],[39],[40],[44] $ 4,248,000  
Interest rate [4],[38],[39],[40],[44] 9.70%  
Basis spread on variable rate [4],[38],[39],[40],[44] 5.25%  
Investment, Identifier [Axis]: NAW Buyer LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[37],[38],[40],[41] 0.60% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 11,533,000  
Fair value at ending balance $ 12,022,000 [35],[37],[38],[40],[41] $ 11,533,000 [29],[30],[31],[33],[43]
Interest rate 8.80% [35],[37],[38],[40],[41] 10.40% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41] 5.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: NAW Buyer LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 639,000  
Fair value at ending balance $ 748,000 [35] $ 639,000 [33]
Investment owned, balance (in shares) 575,248 [35] 575,248 [33]
Investment, Identifier [Axis]: NAW Buyer LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[41] 10.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: NF Holdco, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[35],[40],[41] 0.30% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 5,456,000  
Fair value at ending balance $ 5,263,000 [4],[35],[40],[41] $ 5,456,000 [8],[30],[31],[33]
Interest rate 10.50% [4],[35],[40],[41] 10.80% [8],[30],[31],[33]
Basis spread on variable rate 6.50% [4],[35],[40],[41] 6.50% [8],[30],[31],[33]
Investment, Identifier [Axis]: NF Holdco, LLC, LLC Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 753,000  
Fair value at ending balance $ 411,000 [4],[35],[49] $ 753,000 [8],[11],[33]
Investment owned, balance (in shares) 856,053 [4],[35],[49] 856,053 [8],[11],[33]
Investment, Identifier [Axis]: NF Holdco, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 370,000  
Fair value at ending balance $ 816,000 [4],[35],[37],[40],[41] $ 370,000 [8],[30],[31],[33],[43]
Interest rate 10.50% [4],[35],[37],[40],[41] 10.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.50% [4],[35],[37],[40],[41] 6.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: NPM Investments 28 B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[6],[35],[37],[38],[40],[45] 0.10% [2],[10],[29],[31],[32],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[32],[33],[43],[46] $ 1,128,000  
Fair value at ending balance $ 4,278,000 [4],[6],[35],[37],[38],[40],[45] $ 1,128,000 [10],[29],[31],[32],[33],[43],[46]
Interest rate 7.20% [4],[6],[35],[37],[38],[40],[45] 9.30% [10],[29],[31],[32],[33],[43],[46]
Basis spread on variable rate 5.18% [4],[6],[35],[37],[38],[40],[45] 6.00% [10],[29],[31],[32],[33],[43],[46]
Investment, Identifier [Axis]: Napa Bidco Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[6],[35],[38],[40],[58] 0.60% [2],[10],[29],[31],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 12,146,000  
Fair value at ending balance $ 13,001,000 [6],[35],[38],[40],[58] $ 12,146,000 [10],[29],[31],[33],[57]
Interest rate 8.60% [6],[35],[38],[40],[58] 9.50% [10],[29],[31],[33],[57]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[58] 5.00% [10],[29],[31],[33],[57]
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Class A Preferred Stock    
Percent of net assets [2],[8],[11],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 467,000  
Fair value at ending balance [8],[11],[33]   $ 467,000
Investment owned, balance (in shares) [8],[11],[33]   3,708.1
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Class B Common Stock    
Percent of net assets [2],[8],[11],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] 600,000  
Fair value at ending balance [8],[11],[33]   $ 600,000
Investment owned, balance (in shares) [8],[11],[33]   412
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[31],[32],[33],[48]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[48] 4,101,000  
Fair value at ending balance [31],[32],[33],[48]   $ 4,101,000
Interest rate [31],[32],[33],[48]   9.40%
Basis spread on variable rate [31],[32],[33],[48]   4.75%
Investment, Identifier [Axis]: Narda Acquisitionco., Inc., Revolver    
Percent of net assets [2],[8],[31],[33],[43],[48]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance [8],[31],[33],[43],[48]   $ 0
Interest rate [8],[31],[33],[43],[48]   9.40%
Basis spread on variable rate [8],[31],[33],[43],[48]   4.75%
Investment, Identifier [Axis]: Navia Benefit Solutions, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[35],[39],[40],[42] 0.30% [2],[8],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[32],[33],[48] $ 6,472,000  
Fair value at ending balance $ 6,422,000 [4],[35],[39],[40],[42] $ 6,472,000 [8],[31],[32],[33],[48]
Interest rate 8.80% [4],[35],[39],[40],[42] 9.20% [8],[31],[32],[33],[48]
Basis spread on variable rate 4.50% [4],[35],[39],[40],[42] 4.50% [8],[31],[32],[33],[48]
Investment, Identifier [Axis]: NeoxCo, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[54] 0.10% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 2,456,000  
Fair value at ending balance $ 2,809,000 [6],[35],[38],[40],[54] $ 2,456,000 [10],[29],[31],[33],[53]
Interest rate 9.10% [6],[35],[38],[40],[54] 10.10% [10],[29],[31],[33],[53]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[54] 6.50% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Neptune Bidco US Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41],[44] $ 9,048,000  
Interest rate [4],[40],[41],[44] 9.40%  
Basis spread on variable rate [4],[40],[41],[44] 5.00%  
Investment, Identifier [Axis]: Next Holdco, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.60% [1],[35],[37],[38],[40],[41] 0.80% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 15,221,000  
Fair value at ending balance $ 43,153,000 [35],[37],[38],[40],[41] $ 15,221,000 [29],[30],[31],[33],[43]
Interest rate 9.50% [35],[37],[38],[40],[41] 10.50% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [35],[37],[38],[40],[41] 5.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Next Holdco, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ (13,000) [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 9.50% [4],[35],[37],[40],[41] 10.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [4],[35],[37],[40],[41] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Northstar Recycling, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[35],[38],[40],[41] 0.90% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 17,249,000  
Fair value at ending balance $ 23,519,000 [35],[38],[40],[41] $ 17,249,000 [29],[30],[31],[33],[43]
Interest rate 8.70% [35],[38],[40],[41] 9.00% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.65% [35],[38],[40],[41] 4.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Northstar Recycling, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (45,000)  
Fair value at ending balance $ (36,000) [4],[35],[37],[40],[41] $ (45,000) [8],[30],[31],[33],[43]
Interest rate 8.70% [4],[35],[37],[40],[41] 9.00% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.65% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: OA Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[32],[33],[48]   2.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[48] $ 45,316,000  
Fair value at ending balance [29],[31],[32],[33],[48]   $ 45,316,000
Interest rate [29],[31],[32],[33],[48]   9.30%
Basis spread on variable rate [29],[31],[32],[33],[48]   4.75%
Investment, Identifier [Axis]: OA Buyer, Inc., Partnership Units    
Percent of net assets [2],[8],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] 783,000  
Fair value at ending balance [8],[33]   $ 783,000
Investment owned, balance (in shares) [8],[33]   210,920.11
Investment, Identifier [Axis]: OA Buyer, Inc., Revolver    
Percent of net assets [2],[8],[31],[33],[43],[48]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (5,000)  
Fair value at ending balance [8],[31],[33],[43],[48]   $ (5,000)
Interest rate [8],[31],[33],[43],[48]   9.30%
Basis spread on variable rate [8],[31],[33],[43],[48]   4.75%
Investment, Identifier [Axis]: OAC Holdings I Corp, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[40],[41],[42] 0.20% [2],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[48] $ 3,539,000  
Fair value at ending balance $ 3,294,000 [35],[40],[41],[42] $ 3,539,000 [31],[32],[33],[48]
Interest rate 9.40% [35],[40],[41],[42] 9.70% [31],[32],[33],[48]
Basis spread on variable rate 5.00% [35],[40],[41],[42] 5.00% [31],[32],[33],[48]
Investment, Identifier [Axis]: OAC Holdings I Corp, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ 0 [8],[31],[33],[43],[48]
Interest rate 9.40% [4],[35],[37],[40],[41] 9.70% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: OCP CLO 2016-12, Ltd., Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 1,930,000  
Fair value at ending balance $ 1,901,000 [4],[6],[40],[41] $ 1,930,000 [8],[10],[30],[31]
Interest rate 10.30% [4],[6],[40],[41] 10.60% [8],[10],[30],[31]
Basis spread on variable rate 6.00% [4],[6],[40],[41] 6.00% [8],[10],[30],[31]
Investment, Identifier [Axis]: OCP CLO 2024-35, Ltd., Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 3,787,000  
Fair value at ending balance $ 3,828,000 [4],[6],[40],[41] $ 3,787,000 [8],[10],[30],[31]
Interest rate 10.20% [4],[6],[40],[41] 10.20% [8],[10],[30],[31]
Basis spread on variable rate 5.90% [4],[6],[40],[41] 5.90% [8],[10],[30],[31]
Investment, Identifier [Axis]: OG III B.V., First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[46]   0.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 14,312,000  
Fair value at ending balance [10],[29],[31],[33],[46]   $ 14,312,000
Interest rate [10],[29],[31],[33],[46]   8.90%
Basis spread on variable rate [10],[29],[31],[33],[46]   5.50%
Investment, Identifier [Axis]: OG III B.V., First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[45] 0.60%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[45] $ 15,957,000  
Interest rate [6],[35],[38],[40],[45] 7.60%  
Basis spread on variable rate [6],[35],[38],[40],[45] 5.75%  
Investment, Identifier [Axis]: ORS Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 10,643,000  
Interest rate [35],[38],[40],[41] 9.00%  
Basis spread on variable rate [35],[38],[40],[41] 5.00%  
Investment, Identifier [Axis]: ORTEC INTERNATIONAL NEWCO B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[45] 0.20% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 4,657,000  
Fair value at ending balance $ 5,371,000 [6],[35],[38],[40],[45] $ 4,657,000 [10],[29],[31],[33],[46]
Interest rate 7.30% [6],[35],[38],[40],[45] 8.50% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[45] 5.75% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[4],[35],[37],[38],[40],[41],[42] 1.00% [2],[8],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[32],[33],[43] $ 19,044,000  
Fair value at ending balance $ 23,427,000 [4],[35],[37],[38],[40],[41],[42] $ 19,044,000 [8],[29],[30],[31],[32],[33],[43]
Interest rate 9.30% [4],[35],[37],[38],[40],[41],[42] 9.80% [8],[29],[30],[31],[32],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[38],[40],[41],[42] 5.25% [8],[29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, LP Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 274,000  
Fair value at ending balance $ 356,000 [35],[49] $ 274,000 [33]
Investment owned, balance (in shares) 315,147 [35],[49] 315,147 [33]
Investment, Identifier [Axis]: OSP Hamilton Purchaser, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 623,000  
Fair value at ending balance $ 1,201,000 [4],[35],[37],[40],[41] $ 623,000 [8],[30],[31],[33],[43]
Interest rate 9.30% [4],[35],[37],[40],[41] 9.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Ocelot Holdco LLC, Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 232,000  
Fair value at ending balance $ 737,000 [4],[35],[49] $ 232,000 [8],[11],[33]
Investment owned, balance (in shares) 58.3 [4],[35],[49] 58.3 [8],[11],[33]
Investment, Identifier [Axis]: Ocelot Holdco LLC, Preferred Stock    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 898,000  
Fair value at ending balance $ 762,000 [4],[35] $ 898,000 [8],[33]
Interest, pik 15.00% [4],[35] 15.00% [8],[33]
Investment owned, balance (in shares) 76.2 [4],[35] 76.2 [8],[33]
Investment, Identifier [Axis]: Ocelot Holdco LLC, Super Senior Takeback Loan    
Percent of net assets [2],[8],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 172,000  
Fair value at ending balance [8],[33]   $ 172,000
Interest rate [8],[33]   10.00%
Investment, Identifier [Axis]: Ocelot Holdco LLC, Takeback Term Loan    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 917,000  
Fair value at ending balance $ 917,000 [4],[35] $ 917,000 [8],[33]
Interest rate 10.00% [4],[35] 10.00% [8],[33]
Investment, Identifier [Axis]: Octagon Investment Partners 20-R, LLC, Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 2,567,000  
Fair value at ending balance $ 2,537,000 [4],[6],[40],[41] $ 2,567,000 [8],[10],[30],[31]
Interest rate 11.80% [4],[6],[40],[41] 12.10% [8],[10],[30],[31]
Basis spread on variable rate 7.59% [4],[6],[40],[41] 7.59% [8],[10],[30],[31]
Investment, Identifier [Axis]: Octane Purchaser Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40] 1.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 28,595,000  
Interest rate [35],[37],[38],[39],[40] 8.40%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.25%  
Investment, Identifier [Axis]: Octane Purchaser Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (27,000)  
Interest rate [4],[35],[37],[39],[40] 8.40%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.25%  
Investment, Identifier [Axis]: Ocular Therapeutix, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[4],[6],[35],[39],[40] 0.50% [2],[8],[10],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[48] $ 9,698,000  
Fair value at ending balance $ 9,675,000 [4],[6],[35],[39],[40] $ 9,698,000 [8],[10],[31],[33],[48]
Interest rate 10.90% [4],[6],[35],[39],[40] 11.20% [8],[10],[31],[33],[48]
Basis spread on variable rate 6.75% [4],[6],[35],[39],[40] 6.75% [8],[10],[31],[33],[48]
Investment, Identifier [Axis]: Oracle Vision Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[61] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[61] $ 7,031,000  
Interest rate [6],[35],[37],[38],[40],[61] 9.20%  
Basis spread on variable rate [6],[35],[37],[38],[40],[61] 5.00%  
Investment, Identifier [Axis]: Oracle Vision Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[43],[62]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[62] $ 1,358,000  
Fair value at ending balance [10],[29],[31],[33],[43],[62]   $ 1,358,000
Interest rate [10],[29],[31],[33],[43],[62]   10.00%
Basis spread on variable rate [10],[29],[31],[33],[43],[62]   5.25%
Investment, Identifier [Axis]: Oracle Vision Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[62]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 4,983,000  
Fair value at ending balance [10],[29],[31],[33],[62]   $ 4,983,000
Interest rate [10],[29],[31],[33],[62]   10.00%
Basis spread on variable rate [10],[29],[31],[33],[62]   5.25%
Investment, Identifier [Axis]: Origin Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 301,000  
Fair value at ending balance $ 345,000 [6],[35],[38],[40],[45] $ 301,000 [10],[29],[31],[33],[46]
Interest rate 7.00% [6],[35],[38],[40],[45] 8.10% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[45] 5.25% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Origin Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.30% [1],[6],[35],[38],[40],[41] 0.00% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 522,000  
Fair value at ending balance $ 8,882,000 [6],[35],[38],[40],[41] $ 522,000 [10],[29],[30],[31],[33]
Interest rate 9.60% [6],[35],[38],[40],[41] 10.00% [10],[29],[30],[31],[33]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[41] 5.25% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Origin Bidco Limited, First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[10],[29],[30],[31],[33]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 8,301,000  
Fair value at ending balance [10],[29],[30],[31],[33]   $ 8,301,000
Interest rate [10],[29],[30],[31],[33]   10.00%
Basis spread on variable rate [10],[29],[30],[31],[33]   5.25%
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 11,620,000  
Interest rate [35],[37],[38],[40],[41] 9.10%  
Basis spread on variable rate [35],[37],[38],[40],[41] 4.75%  
Investment, Identifier [Axis]: Owl Intermediate Holdings, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (30,000)  
Interest rate [4],[35],[37],[40],[41] 9.10%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.75%  
Investment, Identifier [Axis]: PDQ.Com Corporation, Class A-2 Partnership Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 126,000  
Fair value at ending balance $ 97,000 [4],[35],[49] $ 126,000 [8],[11],[33]
Investment owned, balance (in shares) 41.7 [4],[35],[49] 86.4 [8],[11],[33]
Investment, Identifier [Axis]: PDQ.Com Corporation, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[37],[38],[40],[41],[42] 0.80% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 16,441,000  
Fair value at ending balance $ 19,346,000 [35],[37],[38],[40],[41],[42] $ 16,441,000 [29],[30],[31],[32],[33],[43]
Interest rate 8.50% [35],[37],[38],[40],[41],[42] 9.30% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 4.50% [35],[37],[38],[40],[41],[42] 4.75% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: PEGASUS TRANSTECH HOLDING, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[38],[39],[40] 0.40% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 8,333,000  
Fair value at ending balance $ 8,249,000 [35],[38],[39],[40] $ 8,333,000 [29],[31],[33],[48]
Interest rate 10.20% [35],[38],[39],[40] 10.60% [29],[31],[33],[48]
Basis spread on variable rate 6.00% [35],[38],[39],[40] 6.00% [29],[31],[33],[48]
Investment, Identifier [Axis]: PSP Intermediate 4, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 844,000  
Fair value at ending balance $ 949,000 [6],[35],[38],[40],[45] $ 844,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.80% [6],[35],[38],[40],[45] 8.80% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[45] 5.75% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: PSP Intermediate 4, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[41] 0.10% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 1,408,000  
Fair value at ending balance $ 1,394,000 [6],[35],[38],[40],[41] $ 1,408,000 [10],[29],[30],[31],[33]
Interest rate 10.30% [6],[35],[38],[40],[41] 10.50% [10],[29],[30],[31],[33]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[41] 5.75% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Padagis, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41],[44] $ 5,178,000  
Interest rate [35],[38],[40],[41],[44] 9.30%  
Basis spread on variable rate [35],[38],[40],[41],[44] 4.75%  
Investment, Identifier [Axis]: Palmer Square CLO 2022-5, Ltd., Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41] 0.20% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 4,125,000  
Fair value at ending balance $ 4,060,000 [4],[6],[40],[41] $ 4,125,000 [8],[10],[30],[31]
Interest rate 10.30% [4],[6],[40],[41] 10.60% [8],[10],[30],[31]
Basis spread on variable rate 6.00% [4],[6],[40],[41] 6.00% [8],[10],[30],[31]
Investment, Identifier [Axis]: Panoche Energy Center LLC, First Lien Senior Secured Bond    
Percent of net assets 0.10% [1],[4],[35] 0.20% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 3,695,000  
Fair value at ending balance $ 3,046,000 [4],[35] $ 3,695,000 [8],[33]
Interest rate 6.90% [4],[35] 6.90% [8],[33]
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE), First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 522,000  
Fair value at ending balance $ 575,000 [6],[35],[38],[40],[45] $ 522,000 [10],[29],[31],[33],[53]
Interest rate 7.30% [6],[35],[38],[40],[45] 9.00% [10],[29],[31],[33],[53]
Interest, pik [10],[29],[31],[33],[53]   0.80%
Basis spread on variable rate 5.25% [6],[35],[38],[40],[45] 5.25% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Pare SAS (SAS Maurice MARLE), First Lien Senior Secured Term Loan 2    
Percent of net assets 0.20% [1],[6],[35],[37],[38],[40],[41] 0.20% [2],[10],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33],[43] $ 4,800,000  
Fair value at ending balance $ 4,600,000 [6],[35],[37],[38],[40],[41] $ 4,800,000 [10],[29],[30],[31],[33],[43]
Interest rate 9.60% [6],[35],[37],[38],[40],[41] 9.90% [10],[29],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[41] 5.25% [10],[29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[31],[33],[43],[48]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 609,000  
Fair value at ending balance [8],[31],[33],[43],[48]   $ 609,000
Interest rate [8],[31],[33],[43],[48]   12.90%
Basis spread on variable rate [8],[31],[33],[43],[48]   8.30%
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[4],[35],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[39],[40] $ 29,000  
Interest rate [4],[35],[39],[40] 12.50%  
Basis spread on variable rate [4],[35],[39],[40] 8.25%  
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[4],[35],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[39],[40] $ 593,000  
Interest rate [4],[35],[39],[40] 12.60%  
Basis spread on variable rate [4],[35],[39],[40] 8.30%  
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 263,000  
Fair value at ending balance $ 350,000 [35],[49] $ 263,000 [11],[33]
Investment owned, balance (in shares) 29,762 [35],[49] 29,762 [11],[33]
Investment, Identifier [Axis]: Parkview Dental Holdings LLC, Preferred Stock    
Percent of net assets [1],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35] $ 38,000  
Interest, pik [35] 10.00%  
Investment owned, balance (in shares) [35] 1,229.1  
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance), First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 273,000  
Fair value at ending balance $ 282,000 [6],[35],[38],[40],[45] $ 273,000 [10],[29],[31],[33],[46]
Interest rate 7.30% [6],[35],[38],[40],[45] 9.80% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[45] 6.75% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Patriot New Midco 1 Limited (Forensic Risk Alliance), First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[41] 0.00% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 351,000  
Fair value at ending balance $ 320,000 [6],[35],[38],[40],[41] $ 351,000 [10],[29],[30],[31],[33]
Interest rate 9.90% [6],[35],[38],[40],[41] 11.60% [10],[29],[30],[31],[33]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[41] 7.01% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Patterson Companies, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 2,749,000  
Interest rate [40],[41],[44] 8.80%  
Basis spread on variable rate [40],[41],[44] 4.50%  
Investment, Identifier [Axis]: Pediatric Associates, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41],[44] $ 3,231,000  
Interest rate [4],[40],[41],[44] 7.80%  
Basis spread on variable rate [4],[40],[41],[44] 3.25%  
Investment, Identifier [Axis]: Peninsula Pacific Entertainment, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[40],[41],[44] $ 1,926,000  
Interest rate [35],[40],[41],[44] 8.80%  
Basis spread on variable rate [35],[40],[41],[44] 4.75%  
Investment, Identifier [Axis]: Perforce Software, Inc., Second Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[39],[40] 0.30% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 6,497,000  
Fair value at ending balance $ 6,497,000 [35],[38],[39],[40] $ 6,497,000 [29],[31],[33],[48]
Interest rate 12.30% [35],[38],[39],[40] 12.50% [29],[31],[33],[48]
Basis spread on variable rate 8.00% [35],[38],[39],[40] 8.00% [29],[31],[33],[48]
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class A    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 177,000  
Fair value at ending balance $ 180,000 [4],[6],[35] $ 177,000 [8],[10],[33]
Interest rate 4.70% [4],[6],[35] 4.70% [8],[10],[33]
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class B    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 178,000  
Fair value at ending balance $ 181,000 [4],[6],[35] $ 178,000 [8],[10],[33]
Interest rate 5.40% [4],[6],[35] 5.40% [8],[10],[33]
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class C    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 180,000  
Fair value at ending balance $ 181,000 [4],[6],[35] $ 180,000 [8],[10],[33]
Interest rate 5.90% [4],[6],[35] 5.90% [8],[10],[33]
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class D    
Percent of net assets 0.00% [1],[4],[6],[35] 0.00% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 178,000  
Fair value at ending balance $ 180,000 [4],[6],[35] $ 178,000 [8],[10],[33]
Interest rate 8.50% [4],[6],[35] 8.50% [8],[10],[33]
Investment, Identifier [Axis]: Perimeter Master Note Business Trust, Structured Secured Note - Class E    
Percent of net assets 0.30% [1],[4],[6],[35] 0.50% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 8,904,000  
Fair value at ending balance $ 9,148,000 [4],[6],[35] $ 8,904,000 [8],[10],[33]
Interest rate 11.40% [4],[6],[35] 11.40% [8],[10],[33]
Investment, Identifier [Axis]: Permaconn BidCo Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[6],[35],[38],[40],[58] 0.30% [2],[10],[29],[31],[33],[57]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[57] $ 6,910,000  
Fair value at ending balance $ 7,397,000 [6],[35],[38],[40],[58] $ 6,910,000 [10],[29],[31],[33],[57]
Interest rate 8.30% [6],[35],[38],[40],[58] 9.70% [10],[29],[31],[33],[57]
Basis spread on variable rate 4.75% [6],[35],[38],[40],[58] 5.25% [10],[29],[31],[33],[57]
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[39],[40],[42] 0.30% [2],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 5,792,000  
Fair value at ending balance $ 5,741,000 [35],[39],[40],[42] $ 5,792,000 [30],[31],[32],[33]
Interest rate 8.90% [35],[39],[40],[42] 9.50% [30],[31],[32],[33]
Basis spread on variable rate 4.75% [35],[39],[40],[42] 4.75% [30],[31],[32],[33]
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., Partnership Units    
Percent of net assets 0.10% [1],[35] 0.10% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 1,229,000  
Fair value at ending balance $ 1,942,000 [35] $ 1,229,000 [33]
Investment owned, balance (in shares) 7,408.6 [35] 7,408.6 [33]
Investment, Identifier [Axis]: Polara Enterprises, L.L.C., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 825,000 [4],[35],[37],[39],[40] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[39],[40] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[39],[40] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Policy Services Company, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.90% [1],[4],[35],[40],[41] 2.80% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 55,406,000  
Fair value at ending balance $ 49,795,000 [4],[35],[40],[41] $ 55,406,000 [8],[30],[31],[33]
Interest rate 10.60% [4],[35],[40],[41] 10.90% [8],[30],[31],[33]
Interest, pik 4.00% [4],[35],[40],[41] 4.00% [8],[30],[31],[33]
Basis spread on variable rate 6.00% [4],[35],[40],[41] 6.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class A    
Percent of net assets 0.00% [1],[35],[38],[49] 0.10% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 1,321,000  
Fair value at ending balance $ 0 [35],[38],[49] $ 1,321,000 [11],[29],[33]
Investment owned, balance (in shares) 2.6774 [35],[38],[49] 2.6774 [11],[29],[33]
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class B    
Percent of net assets 0.00% [1],[35],[38],[49] 0.00% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 446,000  
Fair value at ending balance $ 0 [35],[38],[49] $ 446,000 [11],[29],[33]
Investment owned, balance (in shares) 0.9036 [35],[38],[49] 0.9036 [11],[29],[33]
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class CC    
Percent of net assets 0.00% [1],[35],[38],[49] 0.00% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 0  
Fair value at ending balance $ 0 [35],[38],[49] $ 0 [11],[29],[33]
Investment owned, balance (in shares) 0.0929 [35],[38],[49] 0.9290 [11],[29],[33]
Investment, Identifier [Axis]: Policy Services Company, LLC, Warrants - Class D    
Percent of net assets 0.00% [1],[35],[38],[49] 0.00% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 128,000  
Fair value at ending balance $ 0 [35],[38],[49] $ 128,000 [11],[29],[33]
Investment owned, balance (in shares) 0.2586 [35],[38],[49] 0.2586 [11],[29],[33]
Investment, Identifier [Axis]: PowerGEM Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[37],[38],[40],[41] 0.50% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 9,704,000  
Fair value at ending balance $ 13,989,000 [35],[37],[38],[40],[41] $ 9,704,000 [29],[30],[31],[33],[43]
Interest rate 8.70% [35],[37],[38],[40],[41] 9.50% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [35],[37],[38],[40],[41] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: PowerGEM Buyer, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (37,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ (37,000) [8],[30],[31],[33],[43]
Interest rate 8.70% [4],[35],[37],[40],[41] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Premium Franchise Brands, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.90% [1],[35],[38],[40],[42],[50] 1.20% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 23,819,000  
Fair value at ending balance $ 23,826,000 [35],[38],[40],[42],[50] $ 23,819,000 [29],[30],[31],[32],[33]
Interest rate 10.70% [35],[38],[40],[42],[50] 10.70% [29],[30],[31],[32],[33]
Basis spread on variable rate 6.25% [35],[38],[40],[42],[50] 6.25% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Premium Franchise Brands, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.40% [1],[35],[38],[40],[50] 0.50% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 9,958,000  
Fair value at ending balance $ 10,043,000 [35],[38],[40],[50] $ 9,958,000 [29],[30],[31],[33]
Interest rate 11.20% [35],[38],[40],[50] 11.20% [29],[30],[31],[33]
Basis spread on variable rate 6.75% [35],[38],[40],[50] 6.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Premium Invest, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[6],[35],[37],[38],[40],[45] 0.30% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 6,563,000  
Fair value at ending balance $ 7,352,000 [6],[35],[37],[38],[40],[45] $ 6,563,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.80% [6],[35],[37],[38],[40],[45] 9.10% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.75% [6],[35],[37],[38],[40],[45] 5.75% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Preqin MC Limited, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 2,500,000  
Fair value at ending balance [10],[29],[31],[33],[51]   $ 2,500,000
Interest rate [10],[29],[31],[33],[51]   10.20%
Basis spread on variable rate [10],[29],[31],[33],[51]   5.00%
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[38],[39],[40] 0.60% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 12,236,000  
Fair value at ending balance $ 12,221,000 [35],[38],[39],[40] $ 12,236,000 [29],[30],[31],[33]
Interest rate 8.50% [35],[38],[39],[40] 8.80% [29],[30],[31],[33]
Basis spread on variable rate 4.50% [35],[38],[39],[40] 4.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, LLC Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 398,000  
Fair value at ending balance $ 385,000 [4],[35],[49] $ 398,000 [8],[11],[33]
Investment owned, balance (in shares) 3,765.2 [4],[35],[49] 3,765.2 [8],[11],[33]
Investment, Identifier [Axis]: Pro-Vision Solutions Holdings, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (45,000)  
Fair value at ending balance $ 199,000 [4],[35],[37],[39],[40] $ (45,000) [8],[30],[31],[33],[43]
Interest rate 8.50% [4],[35],[37],[39],[40] 8.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[39],[40] 4.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 310,000  
Fair value at ending balance $ 139,000 [4],[35],[49] $ 310,000 [8],[11],[33]
Investment owned, balance (in shares) 368 [4],[35],[49] 368 [8],[11],[33]
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[38],[40],[41],[42] 0.10% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 2,829,000  
Fair value at ending balance $ 3,164,000 [35],[38],[40],[41],[42] $ 2,829,000 [29],[30],[31],[32],[33],[43]
Interest rate 10.40% [35],[38],[40],[41],[42] 10.60% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 6.25% [35],[38],[40],[41],[42] 6.25% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: Process Insights Acquisition, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[40],[41] 0.10% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 1,160,000  
Fair value at ending balance $ 1,193,000 [4],[35],[40],[41] $ 1,160,000 [8],[30],[31],[33],[43]
Interest rate 10.40% [4],[35],[40],[41] 10.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.25% [4],[35],[40],[41] 6.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: ProfitOptics, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38],[39],[40] 0.00% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 645,000  
Fair value at ending balance $ 640,000 [35],[38],[39],[40] $ 645,000 [29],[31],[33],[48]
Interest rate 10.00% [35],[38],[39],[40] 10.20% [29],[31],[33],[48]
Basis spread on variable rate 5.75% [35],[38],[39],[40] 5.75% [29],[31],[33],[48]
Investment, Identifier [Axis]: ProfitOptics, LLC, LLC Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 79,000  
Fair value at ending balance $ 166,000 [4],[35],[49] $ 79,000 [8],[11],[33]
Investment owned, balance (in shares) 96,774.2 [4],[35],[49] 96,774.2 [8],[11],[33]
Investment, Identifier [Axis]: ProfitOptics, LLC, Revolver    
Percent of net assets 0.00% [1],[35],[37],[38],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 97,000  
Fair value at ending balance $ 39,000 [35],[37],[38],[39],[40] $ 97,000 [8],[31],[33],[43],[48]
Interest rate 10.00% [35],[37],[38],[39],[40] 10.20% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.75% [35],[37],[38],[39],[40] 5.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: ProfitOptics, LLC, Senior Subordinated Term Loan    
Percent of net assets 0.00% [1],[4],[35],[40] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 31,000  
Fair value at ending balance $ 31,000 [4],[35],[40] $ 31,000 [8],[33]
Interest rate 8.00% [4],[35],[40] 8.00% [8],[33]
Investment, Identifier [Axis]: Project Boost Purchaser LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,994,000  
Interest rate [40],[41],[44] 7.10%  
Basis spread on variable rate [40],[41],[44] 2.75%  
Investment, Identifier [Axis]: Protego Bidco B.V., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[10],[29],[31],[33],[53]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[53] $ 530,000  
Fair value at ending balance [8],[10],[29],[31],[33],[53]   $ 530,000
Interest rate [8],[10],[29],[31],[33],[53]   10.00%
Basis spread on variable rate [8],[10],[29],[31],[33],[53]   6.75%
Investment, Identifier [Axis]: Protego Bidco B.V., First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[54] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[54] $ 515,000  
Interest rate [6],[35],[38],[40],[54] 8.10%  
Basis spread on variable rate [6],[35],[38],[40],[54] 6.00%  
Investment, Identifier [Axis]: Protego Bidco B.V., First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[4],[6],[35],[40],[54] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[40],[54] $ 103,000  
Interest rate [4],[6],[35],[40],[54] 8.60%  
Basis spread on variable rate [4],[6],[35],[40],[54] 6.50%  
Investment, Identifier [Axis]: Protego Bidco B.V., Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[40],[54] 0.00% [2],[8],[10],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[53] $ 120,000  
Fair value at ending balance $ 140,000 [4],[6],[35],[40],[54] $ 120,000 [8],[10],[31],[33],[53]
Interest rate 8.60% [4],[6],[35],[40],[54] 9.70% [8],[10],[31],[33],[53]
Basis spread on variable rate 6.50% [4],[6],[35],[40],[54] 6.50% [8],[10],[31],[33],[53]
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[70] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[70] $ 7,088,000  
Interest rate [6],[35],[38],[40],[70] 8.10%  
Basis spread on variable rate [6],[35],[38],[40],[70] 4.50%  
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[78]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[78] $ 4,024,000  
Fair value at ending balance [10],[29],[31],[33],[78]   $ 4,024,000
Interest rate [10],[29],[31],[33],[78]   8.10%
Basis spread on variable rate [10],[29],[31],[33],[78]   3.75%
Investment, Identifier [Axis]: QPE7 SPV1 BidCo Pty Ltd, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[10],[29],[31],[33],[78]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[78] $ 2,605,000  
Fair value at ending balance [10],[29],[31],[33],[78]   $ 2,605,000
Interest rate [10],[29],[31],[33],[78]   8.90%
Basis spread on variable rate [10],[29],[31],[33],[78]   4.50%
Investment, Identifier [Axis]: Qima Finance LTD, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[37],[38],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[37],[38],[40],[41] $ 1,979,000  
Interest rate [6],[35],[37],[38],[40],[41] 9.80%  
Basis spread on variable rate [6],[35],[37],[38],[40],[41] 5.50%  
Investment, Identifier [Axis]: Qualified Industries, LLC, Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 91,000  
Fair value at ending balance $ 191,000 [4],[35],[49] $ 91,000 [8],[11],[33]
Investment owned, balance (in shares) 454,545 [4],[35],[49] 454,545 [8],[11],[33]
Investment, Identifier [Axis]: Qualified Industries, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[38],[40],[50] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[38],[40],[50] $ 11,803,000  
Interest rate [4],[35],[38],[40],[50] 9.70%  
Basis spread on variable rate [4],[35],[38],[40],[50] 5.75%  
Investment, Identifier [Axis]: Qualified Industries, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[29],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[51] $ 2,799,000  
Fair value at ending balance [29],[31],[33],[51]   $ 2,799,000
Interest rate [29],[31],[33],[51]   10.10%
Basis spread on variable rate [29],[31],[33],[51]   5.75%
Investment, Identifier [Axis]: Qualified Industries, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[8],[31],[33],[51]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[51] $ 1,053,000  
Fair value at ending balance [8],[31],[33],[51]   $ 1,053,000
Interest rate [8],[31],[33],[51]   10.10%
Basis spread on variable rate [8],[31],[33],[51]   5.75%
Investment, Identifier [Axis]: Qualified Industries, LLC, Preferred Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 264,000  
Fair value at ending balance $ 284,000 [4],[35],[49] $ 264,000 [8],[11],[33]
Interest, pik [4],[35],[49] 12.50% [8],[11],[33]
Investment owned, balance (in shares) 223 [4],[35],[49] 223 [8],[11],[33]
Investment, Identifier [Axis]: Qualified Industries, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ (7,000)  
Fair value at ending balance $ (5,000) [4],[35],[37],[40],[50] $ (7,000) [8],[31],[33],[43],[51]
Interest rate 9.70% [4],[35],[37],[40],[50] 10.10% [8],[31],[33],[43],[51]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[50] 5.75% [8],[31],[33],[43],[51]
Investment, Identifier [Axis]: Questel Unite, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[8],[10],[29],[30],[31],[33]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[30],[31],[33] $ 1,769,000  
Fair value at ending balance [8],[10],[29],[30],[31],[33]   $ 1,769,000
Interest rate [8],[10],[29],[30],[31],[33]   9.60%
Basis spread on variable rate [8],[10],[29],[30],[31],[33]   6.25%
Investment, Identifier [Axis]: Questel Unite, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[8],[10],[29],[30],[31],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[30],[31],[33] 106,000  
Fair value at ending balance [8],[10],[29],[30],[31],[33]   $ 106,000
Interest rate [8],[10],[29],[30],[31],[33]   7.20%
Interest, pik [8],[10],[29],[30],[31],[33]   2.40%
Basis spread on variable rate [8],[10],[29],[30],[31],[33]   6.25%
Investment, Identifier [Axis]: Questel Unite, First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[10],[29],[30],[31],[33]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 1,024,000  
Fair value at ending balance [10],[29],[30],[31],[33]   $ 1,024,000
Interest rate [10],[29],[30],[31],[33]   10.80%
Basis spread on variable rate [10],[29],[30],[31],[33]   6.25%
Investment, Identifier [Axis]: R1 Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[38],[40],[41],[42] 0.40% [2],[29],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[48] $ 8,108,000  
Fair value at ending balance $ 7,998,000 [35],[38],[40],[41],[42] $ 8,108,000 [29],[31],[32],[33],[48]
Interest rate 10.50% [35],[38],[40],[41],[42] 10.80% [29],[31],[32],[33],[48]
Basis spread on variable rate 6.25% [35],[38],[40],[41],[42] 6.25% [29],[31],[32],[33],[48]
Investment, Identifier [Axis]: R1 Holdings, LLC, Revolver    
Percent of net assets 0.10% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 472,000  
Fair value at ending balance $ 1,850,000 [4],[35],[37],[40],[41] $ 472,000 [8],[31],[33],[43],[48]
Interest rate 10.50% [4],[35],[37],[40],[41] 10.80% [8],[31],[33],[43],[48]
Basis spread on variable rate 6.25% [4],[35],[37],[40],[41] 6.25% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.60% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 11,149,000  
Fair value at ending balance $ 0 [4],[35],[49] $ 11,149,000 [8],[11],[33]
Investment owned, balance (in shares) 2,987 [4],[35],[49] 2,987 [8],[11],[33]
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[4],[35],[38],[40],[41] 0.10% [2],[8],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33] $ 2,292,000  
Fair value at ending balance $ 5,526,000 [4],[35],[38],[40],[41] $ 2,292,000 [8],[29],[30],[31],[33]
Interest rate [8],[29],[30],[31],[33]   12.50%
Interest, pik [4],[35],[38],[40],[41] 11.20%  
Basis spread on variable rate 7.00% [4],[35],[38],[40],[41] 8.00% [8],[29],[30],[31],[33]
Investment, Identifier [Axis]: REP SEKO MERGER SUB LLC, First Out Term Loan    
Percent of net assets 0.10% [1],[4],[35],[40],[41] 0.30% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 6,255,000  
Fair value at ending balance $ 2,424,000 [4],[35],[40],[41] $ 6,255,000 [8],[30],[31],[33]
Interest rate [8],[30],[31],[33]   12.50%
Interest, pik [4],[35],[40],[41] 14.20%  
Basis spread on variable rate 10.00% [4],[35],[40],[41] 8.00% [8],[30],[31],[33]
Investment, Identifier [Axis]: RKD Group, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[40],[41] 1.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41] $ 36,337,000  
Interest rate [35],[37],[38],[40],[41] 9.70%  
Basis spread on variable rate [35],[37],[38],[40],[41] 5.50%  
Investment, Identifier [Axis]: RKD Group, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ 1,421,000  
Interest rate [4],[35],[37],[40],[41] 9.70%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.50%  
Investment, Identifier [Axis]: ROI Solutions LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[37],[38],[40],[41] 0.90% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 17,865,000  
Fair value at ending balance $ 18,022,000 [35],[37],[38],[40],[41] $ 17,865,000 [29],[30],[31],[33],[43]
Interest rate 8.90% [35],[37],[38],[40],[41] 9.60% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[41] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: ROI Solutions LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (55,000)  
Fair value at ending balance $ (12,000) [4],[35],[37],[40],[41] $ (55,000) [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[40],[41] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: RPX Corporation, First Lien Senior Secured Term Loan    
Percent of net assets 1.60% [1],[35],[38],[39],[40] 2.20% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 43,199,000  
Fair value at ending balance $ 43,087,000 [35],[38],[39],[40] $ 43,199,000 [29],[30],[31],[33]
Interest rate 9.60% [35],[38],[39],[40] 10.60% [29],[30],[31],[33]
Basis spread on variable rate 5.25% [35],[38],[39],[40] 5.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: RPX Corporation, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (63,000)  
Fair value at ending balance $ (39,000) [4],[35],[37],[39],[40] $ (63,000) [8],[30],[31],[33],[43]
Interest rate 9.60% [4],[35],[37],[39],[40] 10.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [4],[35],[37],[39],[40] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: RR 31 LTD, Subordinated Structured Notes    
Percent of net assets 0.10% [1],[4],[6],[40],[41] 0.10% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 2,658,000  
Fair value at ending balance $ 2,660,000 [4],[6],[40],[41] $ 2,658,000 [8],[10],[30],[31]
Interest rate 10.30% [4],[6],[40],[41] 10.30% [8],[10],[30],[31]
Basis spread on variable rate 6.00% [4],[6],[40],[41] 6.00% [8],[10],[30],[31]
Investment, Identifier [Axis]: Radiology Partners Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[4],[38],[40],[41],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[38],[40],[41],[44] $ 7,786,000  
Interest rate [4],[38],[40],[41],[44] 8.10%  
Basis spread on variable rate [4],[38],[40],[41],[44] 3.50%  
Investment, Identifier [Axis]: Randys Holdings, Inc., Common Stock    
Percent of net assets [1],[4],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[49] $ 880,000  
Investment owned, balance (in shares) [4],[35],[49] 6,667  
Investment, Identifier [Axis]: Randys Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[37],[38],[40],[41],[42] 0.60% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 12,750,000  
Fair value at ending balance $ 15,092,000 [35],[37],[38],[40],[41],[42] $ 12,750,000 [29],[30],[31],[32],[33],[43]
Interest rate 9.20% [35],[37],[38],[40],[41],[42] 11.20% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[41],[42] 6.25% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: Randys Holdings, Inc., Partnership Units    
Percent of net assets [2],[8],[11],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 777,000  
Fair value at ending balance [8],[11],[33]   $ 777,000
Investment owned, balance (in shares) [8],[11],[33]   6,667
Investment, Identifier [Axis]: Randys Holdings, Inc., Revolver    
Percent of net assets 0.10% [1],[4],[35],[38],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 766,000  
Fair value at ending balance $ 1,431,000 [4],[35],[38],[40],[41] $ 766,000 [8],[30],[31],[33],[43]
Interest rate 9.20% [4],[35],[38],[40],[41] 11.20% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[38],[40],[41] 6.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Rapid Buyer LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[37],[38],[40],[41] 0.30% [2],[29],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[43],[51] $ 5,093,000  
Fair value at ending balance $ 5,007,000 [35],[37],[38],[40],[41] $ 5,093,000 [29],[31],[33],[43],[51]
Interest rate 9.10% [35],[37],[38],[40],[41] 9.40% [29],[31],[33],[43],[51]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41] 4.75% [29],[31],[33],[43],[51]
Investment, Identifier [Axis]: Rapid Buyer LLC, LLC Units    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 510,000  
Fair value at ending balance $ 396,000 [4],[35],[49] $ 510,000 [8],[11],[33]
Investment owned, balance (in shares) 510 [4],[35],[49] 510 [8],[11],[33]
Investment, Identifier [Axis]: Rapid Buyer LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (21,000)  
Fair value at ending balance $ (34,000) [4],[35],[37],[40],[41] $ (21,000) [8],[30],[31],[33],[43]
Interest rate 9.10% [4],[35],[37],[40],[41] 9.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40] 1.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 34,907,000  
Interest rate [35],[37],[38],[39],[40] 8.80%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.50%  
Investment, Identifier [Axis]: Real Chemistry Intermediate III, Inc., Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (34,000)  
Interest rate [4],[35],[37],[39],[40] 8.80%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.50%  
Investment, Identifier [Axis]: Recovery Point Systems, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[40],[41],[42] 0.10% [2],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 2,380,000  
Fair value at ending balance $ 2,361,000 [35],[40],[41],[42] $ 2,380,000 [30],[31],[32],[33]
Interest rate 10.20% [35],[40],[41],[42] 10.70% [30],[31],[32],[33]
Basis spread on variable rate 5.75% [35],[40],[41],[42] 6.00% [30],[31],[32],[33]
Investment, Identifier [Axis]: Renaissance Learning, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[39],[40],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[39],[40],[44] $ 10,945,000  
Interest rate [4],[39],[40],[44] 8.20%  
Basis spread on variable rate [4],[39],[40],[44] 4.00%  
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[40],[41],[42] 0.70% [2],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [30],[31],[32],[33] $ 12,925,000  
Fair value at ending balance $ 13,316,000 [35],[40],[41],[42] $ 12,925,000 [30],[31],[32],[33]
Interest rate 9.30% [35],[40],[41],[42] 10.10% [30],[31],[32],[33]
Basis spread on variable rate 5.00% [35],[40],[41],[42] 5.50% [30],[31],[32],[33]
Investment, Identifier [Axis]: Renovation Parent Holdings, LLC, Partnership Equity    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 255,000  
Fair value at ending balance $ 419,000 [4],[35],[49] $ 255,000 [8],[11],[33]
Investment owned, balance (in shares) 607,180.9 [4],[35],[49] 607,180.9 [8],[11],[33]
Investment, Identifier [Axis]: Riedel Beheer B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 1,963,000  
Fair value at ending balance $ 2,215,000 [6],[35],[38],[40],[45] $ 1,963,000 [10],[29],[31],[33],[46]
Interest rate 8.30% [6],[35],[38],[40],[45] 9.60% [10],[29],[31],[33],[46]
Basis spread on variable rate 6.25% [6],[35],[38],[40],[45] 6.25% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Rocade Hldings LLC, Preferred LP Units    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Interest, pik 10.30%  
Basis spread on variable rate 6.00%  
Investment owned, balance (in shares) 115,000  
Investment, Identifier [Axis]: Rocade Holdings LLC    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance $ 115,000,000  
Investment, Identifier [Axis]: Rocade Holdings LLC, Common LP Units    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] 315,000 $ 1,092,000
Gross Additions 0 [12] 0 [13],[19]
Gross Reductions 0 [14] 0 [15],[19]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [19]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 1,236,000 (777,000) [19]
Fair value at ending balance 1,551,000 315,000 [19]
Amount of Interest or Dividends Credited to Income $ 399,000 [16] $ 0 [17],[19]
Investment owned, balance (in shares) 30.8 30.8 [19]
Investment, Identifier [Axis]: Rocade Holdings LLC, Common LP Units    
Percent of net assets 0.10% [1],[4],[5],[35] 0.00% [2],[8],[9],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[9],[11],[33] $ 315,000  
Fair value at ending balance $ 1,551,000 [4],[5],[35] $ 315,000 [8],[9],[11],[33]
Investment owned, balance (in shares) 30.8 [4],[5],[35] 30.8 [8],[9],[11],[33]
Investment, Identifier [Axis]: Rocade Holdings LLC, Preferred LP Units    
Percent of net assets 5.30% [1],[4],[5],[35],[39] 6.30% [2],[8],[9],[30],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [19] $ 124,083,000 [8],[9],[30],[33],[43] $ 114,113,000
Gross Additions [13],[19]   13,289,000
Gross Reductions [15],[19]   (3,337,000)
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [19]   0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [19]   18,000
Fair value at ending balance $ 141,042,000 [4],[5],[35],[39] 124,083,000 [8],[9],[19],[30],[33],[43]
Amount of Interest or Dividends Credited to Income [17],[19]   $ 13,289,000
Interest, pik 10.30% [4],[5],[35],[39] 10.30% [8],[9],[19],[30],[33],[43]
Basis spread on variable rate 6.00% [4],[5],[35],[39] 6.00% [8],[9],[19],[30],[33],[43]
Investment owned, balance (in shares) 115,000 [4],[5],[35],[39] 108,000 [8],[9],[19],[30],[33],[43]
Investment, Identifier [Axis]: Rocade Holdings LLC, Preferred LP Units 1    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 124,083,000  
Gross Additions [12] 16,985,000  
Gross Reductions [14] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (26,000)  
Fair value at ending balance 141,042,000 $ 124,083,000
Amount of Interest or Dividends Credited to Income [16] $ 9,985,000  
Investment, Identifier [Axis]: Rock Labor LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[39],[40] 0.30% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,478,000  
Fair value at ending balance $ 5,498,000 [35],[38],[39],[40] $ 5,478,000 [29],[30],[31],[33]
Interest rate 9.70% [35],[38],[39],[40] 10.70% [29],[30],[31],[33]
Basis spread on variable rate 5.50% [35],[38],[39],[40] 5.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Rock Labor LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 961,000  
Fair value at ending balance $ 1,166,000 [35] $ 961,000 [33]
Investment owned, balance (in shares) 199,373 [35] 199,373 [33]
Investment, Identifier [Axis]: Rock Labor LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (16,000)  
Fair value at ending balance $ (6,000) [4],[35],[37],[40],[41] $ (16,000) [8],[30],[31],[33],[43]
Interest rate 9.70% [4],[35],[37],[40],[41] 10.70% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.50% [4],[35],[37],[40],[41] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Royal Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[33],[43]   1.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 21,003,000  
Fair value at ending balance [29],[30],[31],[33],[43]   $ 21,003,000
Interest rate [29],[30],[31],[33],[43]   10.00%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.50%
Investment, Identifier [Axis]: Royal Buyer, LLC, Revolver    
Percent of net assets [2],[8],[30],[31],[33],[43]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (2,000)  
Fair value at ending balance [8],[30],[31],[33],[43]   $ (2,000)
Interest rate [8],[30],[31],[33],[43]   10.00%
Basis spread on variable rate [8],[30],[31],[33],[43]   5.50%
Investment, Identifier [Axis]: Russell Investments US Institutional Holdco, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.20% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 4,067,000  
Fair value at ending balance $ 4,130,000 [35],[38],[40],[41] $ 4,067,000 [29],[30],[31],[33]
Interest rate 7.80% [35],[38],[40],[41] 8.20% [29],[30],[31],[33]
Interest, pik 1.50% [35],[38],[40],[41] 1.50% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[41] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: SBP Holdings LP, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[4],[35],[37],[38],[39],[40],[42] 0.90% [2],[8],[29],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[31],[33],[43],[48] $ 18,113,000  
Fair value at ending balance $ 18,842,000 [4],[35],[37],[38],[39],[40],[42] $ 18,113,000 [8],[29],[31],[33],[43],[48]
Interest rate 9.20% [4],[35],[37],[38],[39],[40],[42] 9.60% [8],[29],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[38],[39],[40],[42] 5.00% [8],[29],[31],[33],[43],[48]
Investment, Identifier [Axis]: SBP Holdings LP, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (22,000)  
Fair value at ending balance $ (9,000) [4],[35],[37],[39],[40] $ (22,000) [8],[30],[31],[33],[43]
Interest rate 9.20% [4],[35],[37],[39],[40] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[39],[40] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: SCP Medical Products, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[41] 0.80%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[41] $ 20,071,000  
Interest rate [35],[38],[40],[41] 8.80%  
Basis spread on variable rate [35],[38],[40],[41] 4.75%  
Investment, Identifier [Axis]: SCP Medical Products, LLC, LLC Units    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 232,000  
Investment owned, balance (in shares) [35],[49] 1,758.9  
Investment, Identifier [Axis]: SCP Medical Products, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (22,000)  
Interest rate [4],[35],[37],[40],[41] 8.80%  
Basis spread on variable rate [4],[35],[37],[40],[41] 4.75%  
Investment, Identifier [Axis]: SISU ACQUISITIONCO., INC., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[35],[38],[40],[41] 0.10% [2],[8],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33],[43] $ 2,296,000  
Fair value at ending balance $ 2,426,000 [4],[35],[38],[40],[41] $ 2,296,000 [8],[29],[30],[31],[33],[43]
Interest rate 9.40% [4],[35],[38],[40],[41] 10.50% [8],[29],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [4],[35],[38],[40],[41] 5.75% [8],[29],[30],[31],[33],[43]
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, Common Stock    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 979,000  
Fair value at ending balance $ 681,000 [35],[49] $ 979,000 [11],[33]
Investment owned, balance (in shares) 972,712.25 [35],[49] 959,803 [11],[33]
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.00% [1],[35],[37],[38],[40],[41],[42] 1.20% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 24,465,000  
Fair value at ending balance $ 25,332,000 [35],[37],[38],[40],[41],[42] $ 24,465,000 [29],[30],[31],[33],[43]
Interest rate 9.30% [35],[37],[38],[40],[41],[42] 9.60% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[41],[42] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: SPATCO Energy Solutions, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (64,000)  
Fair value at ending balance $ (50,000) [4],[35],[37],[40],[41] $ (64,000) [8],[30],[31],[33],[43]
Interest rate 9.30% [4],[35],[37],[40],[41] 9.60% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: SSCP Pegasus Midco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[4],[6],[35],[38],[40],[59] 0.00% [2],[8],[10],[29],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[31],[33],[43],[60] $ 881,000  
Fair value at ending balance $ 1,178,000 [4],[6],[35],[38],[40],[59] $ 881,000 [8],[10],[29],[31],[33],[43],[60]
Interest rate 10.10% [4],[6],[35],[38],[40],[59] 10.70% [8],[10],[29],[31],[33],[43],[60]
Basis spread on variable rate 6.00% [4],[6],[35],[38],[40],[59] 6.00% [8],[10],[29],[31],[33],[43],[60]
Investment, Identifier [Axis]: SSCP Spring Bidco 3 Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[61] 0.00% [2],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 941,000  
Fair value at ending balance $ 1,019,000 [6],[35],[38],[40],[61] $ 941,000 [10],[29],[31],[33],[62]
Interest rate 10.60% [6],[35],[38],[40],[61] 11.20% [10],[29],[31],[33],[62]
Basis spread on variable rate 6.45% [6],[35],[38],[40],[61] 6.45% [10],[29],[31],[33],[62]
Investment, Identifier [Axis]: STS Operating Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 1,986,000  
Interest rate [39],[40],[44] 8.30%  
Basis spread on variable rate [39],[40],[44] 4.00%  
Investment, Identifier [Axis]: SVI International LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[35],[38],[40],[41] 0.00% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 583,000  
Fair value at ending balance $ 641,000 [35],[38],[40],[41] $ 583,000 [29],[30],[31],[33],[43]
Interest rate 11.00% [35],[38],[40],[41] 11.30% [29],[30],[31],[33],[43]
Basis spread on variable rate 6.75% [35],[38],[40],[41] 6.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: SVI International LLC, LLC Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 277,000  
Fair value at ending balance $ 364,000 [35] $ 277,000 [33]
Investment owned, balance (in shares) 207,921 [35] 207,921 [33]
Investment, Identifier [Axis]: SVI International LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[38],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (1,000)  
Fair value at ending balance $ 0 [4],[35],[37],[38],[40],[41] $ (1,000) [8],[30],[31],[33],[43]
Interest rate 11.00% [4],[35],[37],[38],[40],[41] 11.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.75% [4],[35],[37],[38],[40],[41] 6.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Saab Purchaser, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 1.90% [1],[35],[37],[38],[40],[41] 1.40% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 28,148,000  
Fair value at ending balance $ 49,871,000 [35],[37],[38],[40],[41] $ 28,148,000 [29],[30],[31],[33],[43]
Interest rate 8.80% [35],[37],[38],[40],[41] 9.50% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: Saab Purchaser, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (38,000)  
Fair value at ending balance $ (57,000) [4],[35],[37],[40],[41] $ (38,000) [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[41] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Sabre Global, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 2,830,000  
Interest rate [39],[40],[44] 7.80%  
Basis spread on variable rate [39],[40],[44] 3.50%  
Investment, Identifier [Axis]: Sabre Global, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 3,335,000  
Interest rate [39],[40],[44] 10.30%  
Basis spread on variable rate [39],[40],[44] 6.00%  
Investment, Identifier [Axis]: Safety Products Holdings, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[4],[35],[38],[40],[41],[42] 0.40% [2],[8],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[32],[33] $ 7,006,000  
Fair value at ending balance $ 6,948,000 [4],[35],[38],[40],[41],[42] $ 7,006,000 [8],[29],[30],[31],[32],[33]
Interest rate 8.90% [4],[35],[38],[40],[41],[42] 9.50% [8],[29],[30],[31],[32],[33]
Basis spread on variable rate 4.75% [4],[35],[38],[40],[41],[42] 5.00% [8],[29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Sandvine Corporation, Class A Units    
Percent of net assets 0.00% [1],[35],[38],[49] 0.00% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 0  
Fair value at ending balance $ 0 [35],[38],[49] $ 0 [11],[29],[33]
Investment owned, balance (in shares) 3,465 [35],[38],[49] 3,465 [11],[29],[33]
Investment, Identifier [Axis]: Sandvine Corporation, Class B Units    
Percent of net assets [1],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[49] $ 0  
Investment owned, balance (in shares) [35],[38],[49] 12,056  
Investment, Identifier [Axis]: Sandvine Corporation, Class C Units    
Percent of net assets 0.00% [1],[35],[38],[49] 0.00% [2],[11],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[29],[33] $ 0  
Fair value at ending balance $ 0 [35],[38],[49] $ 0 [11],[29],[33]
Investment owned, balance (in shares) 157,908 [35],[38],[49] 157,908 [11],[29],[33]
Investment, Identifier [Axis]: Sandvine Corporation, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[33],[67]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[67] $ 100,000  
Fair value at ending balance [29],[31],[33],[67]   $ 100,000
Interest rate [29],[31],[33],[67]   2.00%
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 1    
Percent of net assets 0.70% [1],[4],[6],[35],[37],[38],[40],[54] 0.40% [2],[10],[29],[31],[33],[43],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 7,038,000  
Fair value at ending balance $ 18,458,000 [4],[6],[35],[37],[38],[40],[54] $ 7,038,000 [10],[29],[31],[33],[43],[53]
Interest rate 7.30% [4],[6],[35],[37],[38],[40],[54] 8.80% [10],[29],[31],[33],[43],[53]
Basis spread on variable rate 5.00% [4],[6],[35],[37],[38],[40],[54] 5.75% [10],[29],[31],[33],[43],[53]
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 2    
Percent of net assets 0.30% [1],[4],[6],[35],[38],[40],[79] 0.30% [2],[10],[29],[31],[33],[74]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[74] $ 5,978,000  
Fair value at ending balance $ 7,368,000 [4],[6],[35],[38],[40],[79] $ 5,978,000 [10],[29],[31],[33],[74]
Interest rate 5.00% [4],[6],[35],[38],[40],[79] 7.00% [10],[29],[31],[33],[74]
Basis spread on variable rate 5.00% [4],[6],[35],[38],[40],[79] 5.75% [10],[29],[31],[33],[74]
Investment, Identifier [Axis]: Sanoptis S.A.R.L., First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[10],[29],[31],[33],[74]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[74] $ 69,000  
Fair value at ending balance [10],[29],[31],[33],[74]   $ 69,000
Interest rate [10],[29],[31],[33],[74]   8.00%
Basis spread on variable rate [10],[29],[31],[33],[74]   6.75%
Investment, Identifier [Axis]: Sansidor BV, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[4],[6],[35],[37],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 1,336,000  
Fair value at ending balance $ 2,550,000 [4],[6],[35],[37],[38],[40],[45] $ 1,336,000 [10],[29],[31],[33],[43],[46]
Interest rate 7.00% [4],[6],[35],[37],[38],[40],[45] 8.60% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 5.00% [4],[6],[35],[37],[38],[40],[45] 5.25% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Scaled Agile, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[38],[40],[41],[42] 0.10% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 1,605,000  
Fair value at ending balance $ 1,589,000 [35],[38],[40],[41],[42] $ 1,605,000 [29],[30],[31],[32],[33]
Interest rate 6.40% [35],[38],[40],[41],[42] 10.20% [29],[30],[31],[32],[33]
Interest, pik [35],[38],[40],[41],[42] 3.80%  
Basis spread on variable rate 2.25% [35],[38],[40],[41],[42] 5.50% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Scaled Agile, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[40],[41] 0.00% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 302,000  
Fair value at ending balance $ 292,000 [4],[35],[40],[41] $ 302,000 [8],[30],[31],[33]
Interest rate 6.40% [4],[35],[40],[41] 10.20% [8],[30],[31],[33]
Interest, pik [4],[35],[40],[41] 3.80%  
Basis spread on variable rate 2.25% [4],[35],[40],[41] 5.50% [8],[30],[31],[33]
Investment, Identifier [Axis]: Scientific Games Lottery, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 3,460,000  
Interest rate [40],[41],[44] 7.30%  
Basis spread on variable rate [40],[41],[44] 3.00%  
Investment, Identifier [Axis]: Scout Bidco B.V., First Lien Senior Secured Term Loan 1    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[54] 0.20% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 3,750,000  
Fair value at ending balance $ 4,008,000 [6],[35],[38],[40],[54] $ 3,750,000 [10],[29],[31],[33],[46]
Interest rate 7.80% [6],[35],[38],[40],[54] 8.40% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[54] 5.50% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Scout Bidco B.V., First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[50] 0.00% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 507,000  
Fair value at ending balance $ 477,000 [6],[35],[38],[40],[50] $ 507,000 [10],[29],[30],[31],[33]
Interest rate 10.00% [6],[35],[38],[40],[50] 10.10% [10],[29],[30],[31],[33]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[50] 5.57% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Scout Bidco B.V., Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[37],[40],[54] 0.00% [2],[8],[10],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[46] $ (7,000)  
Fair value at ending balance $ 192,000 [4],[6],[35],[37],[40],[54] $ (7,000) [8],[10],[31],[33],[43],[46]
Interest rate 7.50% [4],[6],[35],[37],[40],[54] 8.40% [8],[10],[31],[33],[43],[46]
Basis spread on variable rate 5.50% [4],[6],[35],[37],[40],[54] 5.50% [8],[10],[31],[33],[43],[46]
Investment, Identifier [Axis]: Screenvision, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[4],[35],[40],[41] 2.70%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 70,583,000  
Interest rate [4],[35],[40],[41] 9.30%  
Basis spread on variable rate [4],[35],[40],[41] 5.00%  
Investment, Identifier [Axis]: Screenvision, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[4],[35],[40],[41] 0.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[41] $ 13,948,000  
Interest rate [4],[35],[40],[41] 12.80%  
Basis spread on variable rate [4],[35],[40],[41] 8.50%  
Investment, Identifier [Axis]: Screenvision, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[40],[41] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[40],[41] $ (155,000)  
Interest rate [4],[35],[37],[40],[41] 9.30%  
Basis spread on variable rate [4],[35],[37],[40],[41] 5.00%  
Investment, Identifier [Axis]: Sedgwick Claims Management Services Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[44] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[44] $ 1,272,000  
Interest rate [39],[44] 6.70%  
Basis spread on variable rate [39],[44] 2.50%  
Investment, Identifier [Axis]: Selenium Designated Activity Company, First Lien Senior Secured Term Loan    
Percent of net assets [1],[6],[35],[38],[40],[63] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[63] $ 4,301,000  
Interest rate [6],[35],[38],[40],[63] 7.00%  
Basis spread on variable rate [6],[35],[38],[40],[63] 5.13%  
Investment, Identifier [Axis]: Sereni Capital NV, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[10],[29],[31],[33],[53]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 903,000  
Fair value at ending balance [10],[29],[31],[33],[53]   $ 903,000
Interest rate [10],[29],[31],[33],[53]   8.70%
Basis spread on variable rate [10],[29],[31],[33],[53]   6.00%
Investment, Identifier [Axis]: Sereni Capital NV, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[8],[10],[31],[33],[53]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[53] $ 1,524,000  
Fair value at ending balance [8],[10],[31],[33],[53]   $ 1,524,000
Interest rate [8],[10],[31],[33],[53]   9.70%
Basis spread on variable rate [8],[10],[31],[33],[53]   6.75%
Investment, Identifier [Axis]: Shelf Bidco Ltd, Common Stock    
Percent of net assets 0.20% [1],[4],[6],[35] 0.20% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 4,668,000  
Fair value at ending balance $ 4,620,000 [4],[6],[35] $ 4,668,000 [8],[10],[33]
Investment owned, balance (in shares) 1,200,000 [4],[6],[35] 1,200,000 [8],[10],[33]
Investment, Identifier [Axis]: Shelf Bidco Ltd, Second Out Term Loan    
Percent of net assets 1.70% [1],[4],[6],[35],[40],[41] 2.20% [2],[8],[10],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31],[33] $ 44,315,000  
Fair value at ending balance $ 44,015,000 [4],[6],[35],[40],[41] $ 44,315,000 [8],[10],[30],[31],[33]
Interest rate 9.30% [4],[6],[35],[40],[41] 9.60% [8],[10],[30],[31],[33]
Basis spread on variable rate 5.00% [4],[6],[35],[40],[41] 5.00% [8],[10],[30],[31],[33]
Investment, Identifier [Axis]: Sinari Invest, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[43],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[53] $ 1,858,000  
Fair value at ending balance $ 1,980,000 [6],[35],[37],[38],[40],[45] $ 1,858,000 [10],[29],[31],[33],[43],[53]
Interest rate 8.50% [6],[35],[37],[38],[40],[45] 9.30% [10],[29],[31],[33],[43],[53]
Basis spread on variable rate 6.50% [6],[35],[37],[38],[40],[45] 6.00% [10],[29],[31],[33],[43],[53]
Investment, Identifier [Axis]: Skyvault Holdings LLC , First Lien Senior Secured Term Loan    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Interest rate 12.00% [22] 12.00% [80]
Investment, Identifier [Axis]: Skyvault Holdings LLC , LLC Units    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 1,913,000  
Gross Additions [23] 6,443,000  
Gross Reductions [25] 0  
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0  
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (14,000)  
Fair value at ending balance 8,342,000 $ 1,913,000
Amount of Interest or Dividends Credited to Income [27] $ 0  
Investment owned, balance (in shares) 8,342,544 [22] 1,912,719.3 [80]
Investment, Identifier [Axis]: Skyvault Holdings LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[20],[35],[37],[38] 0.30% [2],[8],[21],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [80] $ 5,738,000 [8],[21],[33],[43] $ 0
Gross Additions 19,579,000 [23] 5,738,000 [24],[80]
Gross Reductions (289,000) [25] 0 [26],[80]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [80]
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0 [80]
Fair value at ending balance 25,028,000 [20],[35],[37],[38] 5,738,000 [8],[21],[33],[43],[80]
Amount of Interest or Dividends Credited to Income $ 1,483,000 [27] $ 57,000 [28],[80]
Interest rate [35],[37],[38] 12.00%  
Interest, pik [8],[21],[33],[43]   12.00%
Investment, Identifier [Axis]: Skyvault Holdings LLC, LLC Units    
Percent of net assets 0.30% [1],[4],[20],[35],[49] 0.10% [2],[8],[11],[21],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [80] $ 1,913,000 [8],[11],[21],[33] $ 0
Gross Additions [24],[80]   1,913,000
Gross Reductions [26],[80]   0
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [80]   0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax [80]   0
Fair value at ending balance $ 8,342,000 [4],[20],[35],[49] 1,913,000 [8],[11],[21],[33],[80]
Amount of Interest or Dividends Credited to Income [28],[80]   $ 0
Investment owned, balance (in shares) 8,342,544 [4],[20],[35],[49] 1,912,719.3 [8],[11],[21],[33]
Investment, Identifier [Axis]: SmartShift Group, Inc., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 799,000  
Fair value at ending balance $ 940,000 [4],[35],[49] $ 799,000 [8],[11],[33]
Investment owned, balance (in shares) 455 [4],[35],[49] 455 [8],[11],[33]
Investment, Identifier [Axis]: SmartShift Group, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[38],[40],[42],[50] 0.70%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[38],[40],[42],[50] $ 19,320,000  
Interest rate [35],[38],[40],[42],[50] 9.20%  
Basis spread on variable rate [35],[38],[40],[42],[50] 5.00%  
Investment, Identifier [Axis]: SmartShift Group, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[29],[30],[31],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 5,675,000  
Fair value at ending balance [29],[30],[31],[33]   $ 5,675,000
Interest rate [29],[30],[31],[33]   9.50%
Basis spread on variable rate [29],[30],[31],[33]   5.00%
Investment, Identifier [Axis]: SmartShift Group, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[30],[31],[33]   0.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 13,757,000  
Fair value at ending balance [29],[30],[31],[33]   $ 13,757,000
Interest rate [29],[30],[31],[33]   9.50%
Basis spread on variable rate [29],[30],[31],[33]   5.00%
Investment, Identifier [Axis]: SmartShift Group, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[50] $ 0 [8],[30],[31],[33],[43]
Interest rate 9.20% [4],[35],[37],[40],[50] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[50] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Smartling, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[38],[40],[42],[50] 0.80% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 16,132,000  
Fair value at ending balance $ 16,008,000 [35],[38],[40],[42],[50] $ 16,132,000 [29],[30],[31],[32],[33]
Interest rate 8.80% [35],[38],[40],[42],[50] 9.00% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.50% [35],[38],[40],[42],[50] 4.50% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Smartling, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[50] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ 0 [4],[35],[37],[40],[50] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[40],[50] 9.00% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[50] 4.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Solenis, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,973,000  
Interest rate [40],[41],[44] 7.00%  
Basis spread on variable rate [40],[41],[44] 3.00%  
Investment, Identifier [Axis]: Solo Buyer, L.P., Common Equity    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 325,000  
Fair value at ending balance $ 300,000 [35],[49] $ 325,000 [11],[33]
Investment owned, balance (in shares) 516,399 [35],[49] 516,399 [11],[33]
Investment, Identifier [Axis]: Solo Buyer, L.P., First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[4],[35],[40],[41] 0.80% [2],[8],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33] $ 15,776,000  
Fair value at ending balance $ 15,803,000 [4],[35],[40],[41] $ 15,776,000 [8],[30],[31],[33]
Interest rate 10.40% [4],[35],[40],[41] 10.70% [8],[30],[31],[33]
Basis spread on variable rate 6.25% [4],[35],[40],[41] 6.25% [8],[30],[31],[33]
Investment, Identifier [Axis]: Solo Buyer, L.P., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 466,000  
Fair value at ending balance $ 816,000 [4],[35],[37],[40],[41] $ 466,000 [8],[30],[31],[33],[43]
Interest rate 10.40% [4],[35],[37],[40],[41] 10.70% [8],[30],[31],[33],[43]
Basis spread on variable rate 6.25% [4],[35],[37],[40],[41] 6.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Sonicwall US Holdings Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[38],[40],[41],[44] 1.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[38],[40],[41],[44] $ 31,995,000  
Interest rate [4],[38],[40],[41],[44] 9.50%  
Basis spread on variable rate [4],[38],[40],[41],[44] 5.50%  
Investment, Identifier [Axis]: Sovos Compliance LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 2,002,000  
Interest rate [39],[40],[44] 7.50%  
Basis spread on variable rate [39],[40],[44] 3.25%  
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.), First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[38],[40],[41],[42] 0.10% [2],[29],[31],[32],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[43],[51] $ 2,053,000  
Fair value at ending balance $ 2,282,000 [35],[38],[40],[41],[42] $ 2,053,000 [29],[31],[32],[33],[43],[51]
Interest rate 9.00% [35],[38],[40],[41],[42] 9.20% [29],[31],[32],[33],[43],[51]
Basis spread on variable rate 5.00% [35],[38],[40],[41],[42] 5.00% [29],[31],[32],[33],[43],[51]
Investment, Identifier [Axis]: Sparus Holdings, LLC (f/k/a Sparus Holdings, Inc.), Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ (1,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ (1,000) [8],[31],[33],[43],[51]
Interest rate 9.00% [4],[35],[37],[40],[41] 9.20% [8],[31],[33],[43],[51]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.00% [8],[31],[33],[43],[51]
Investment, Identifier [Axis]: Spatial Business Systems LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.80% [1],[35],[38],[39],[40] 0.50% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 10,825,000  
Fair value at ending balance $ 20,420,000 [35],[38],[39],[40] $ 10,825,000 [29],[30],[31],[33]
Interest rate 8.80% [35],[38],[39],[40] 10.00% [29],[30],[31],[33]
Basis spread on variable rate 4.75% [35],[38],[39],[40] 5.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Spatial Business Systems LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (21,000)  
Fair value at ending balance $ (14,000) [4],[35],[37],[39],[40] $ (21,000) [8],[30],[31],[33],[43]
Interest rate 8.80% [4],[35],[37],[39],[40] 10.00% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[39],[40] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Specialty Building Prod (USLumber), First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 7,775,000  
Interest rate [39],[40],[44] 8.00%  
Basis spread on variable rate [39],[40],[44] 3.75%  
Investment, Identifier [Axis]: Starnmeer B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[6],[35],[38],[40],[50] 0.70% [2],[10],[29],[31],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[51] $ 13,388,000  
Fair value at ending balance $ 13,240,000 [6],[35],[38],[40],[50] $ 13,388,000 [10],[29],[31],[33],[51]
Interest rate 9.20% [6],[35],[38],[40],[50] 9.60% [10],[29],[31],[33],[51]
Basis spread on variable rate 5.00% [6],[35],[38],[40],[50] 5.00% [10],[29],[31],[33],[51]
Investment, Identifier [Axis]: Superjet Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[37],[38],[40],[41],[42] 1.80% [2],[29],[30],[31],[32],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 35,468,000  
Fair value at ending balance $ 17,456,000 [35],[37],[38],[40],[41],[42] $ 35,468,000 [29],[30],[31],[32],[33],[43]
Interest rate 9.20% [35],[37],[38],[40],[41],[42] 10.40% [29],[30],[31],[32],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[41],[42] 5.50% [29],[30],[31],[32],[33],[43]
Investment, Identifier [Axis]: Superjet Buyer, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (63,000)  
Fair value at ending balance $ (30,000) [4],[35],[37],[40],[41] $ (63,000) [8],[30],[31],[33],[43]
Interest rate 9.20% [4],[35],[37],[40],[41] 10.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Swoop Intermediate III, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39],[40] 1.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 32,714,000  
Interest rate [35],[37],[38],[39],[40] 8.80%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.50%  
Investment, Identifier [Axis]: Swoop Intermediate III, Inc., Revolver    
Percent of net assets [1],[35],[37],[38],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39],[40] $ 0  
Interest rate [35],[37],[38],[39],[40] 8.80%  
Basis spread on variable rate [35],[37],[38],[39],[40] 4.50%  
Investment, Identifier [Axis]: Syniverse Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41] $ 7,745,000  
Interest rate [4],[40],[41] 11.00%  
Basis spread on variable rate [4],[40],[41] 7.00%  
Investment, Identifier [Axis]: Syniverse Holdings, Inc., Series A Preferred Equity    
Percent of net assets 0.40% [1],[35],[38] 0.50% [2],[29],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[33] $ 10,076,000  
Fair value at ending balance $ 11,136,000 [35],[38] $ 10,076,000 [29],[33]
Interest, pik 12.50% [35],[38] 12.50% [29],[33]
Investment owned, balance (in shares) 7,575,758 [35],[38] 7,575,758 [29],[33]
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp., Common Stock    
Percent of net assets 0.00% [1],[4],[35],[49] 0.00% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 41,000  
Fair value at ending balance $ 44,000 [4],[35],[49] $ 41,000 [8],[11],[33]
Investment owned, balance (in shares) 770 [4],[35],[49] 770 [8],[11],[33]
Investment, Identifier [Axis]: TA SL Cayman Aggregator Corp., Subordinated Term Loan    
Percent of net assets 0.10% [1],[4],[35] 0.10% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 1,349,000  
Fair value at ending balance $ 1,525,000 [4],[35] $ 1,349,000 [8],[33]
Interest, pik 7.80% [4],[35] 7.80% [8],[33]
Investment, Identifier [Axis]: TAPCO Buyer LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.40% [1],[35],[37],[38],[39],[40],[41] 1.00% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 18,882,000  
Fair value at ending balance $ 36,092,000 [35],[37],[38],[39],[40],[41] $ 18,882,000 [29],[30],[31],[33],[43]
Interest rate 8.90% [35],[37],[38],[39],[40],[41] 9.50% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [35],[37],[38],[39],[40],[41] 5.00% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: TAPCO Buyer LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 353,000  
Fair value at ending balance $ 632,000 [35],[49] $ 353,000 [11],[33]
Investment owned, balance (in shares) 475 [35],[49] 353 [11],[33]
Investment, Identifier [Axis]: TAPCO Buyer LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (61,000)  
Fair value at ending balance $ (51,000) [4],[35],[37],[39],[40] $ (61,000) [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[39],[40] 9.50% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[39],[40] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: THG Acquisition, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[35],[37],[38],[39],[40] 0.50% [2],[29],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[43],[48] $ 9,765,000  
Fair value at ending balance $ 10,111,000 [35],[37],[38],[39],[40] $ 9,765,000 [29],[31],[33],[43],[48]
Interest rate 8.90% [35],[37],[38],[39],[40] 9.30% [29],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [35],[37],[38],[39],[40] 4.75% [29],[31],[33],[43],[48]
Investment, Identifier [Axis]: THG Acquisition, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 93,000  
Fair value at ending balance $ 98,000 [4],[35],[37],[39],[40] $ 93,000 [8],[31],[33],[43],[48]
Interest rate 8.90% [4],[35],[37],[39],[40] 9.30% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.75% [4],[35],[37],[39],[40] 4.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets 0.20% [1],[35],[38],[40],[41] 0.20% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 4,680,000  
Fair value at ending balance $ 5,905,000 [35],[38],[40],[41] $ 4,680,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[38],[40],[41] 9.00% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[41] 4.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[35],[38],[40],[41] 0.00% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 953,000  
Fair value at ending balance $ 937,000 [35],[38],[40],[41] $ 953,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[38],[40],[41] 9.30% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[38],[40],[41] 4.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 3    
Percent of net assets 0.70% [1],[35],[37],[38],[40],[41] 0.10% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 1,192,000  
Fair value at ending balance $ 18,815,000 [35],[37],[38],[40],[41] $ 1,192,000 [29],[30],[31],[33]
Interest rate 9.20% [35],[37],[38],[40],[41] 9.50% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [35],[37],[38],[40],[41] 5.00% [29],[30],[31],[33]
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., First Lien Senior Secured Term Loan 4    
Percent of net assets [2],[29],[30],[31],[33],[43]   0.80%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 15,715,000  
Fair value at ending balance [29],[30],[31],[33],[43]   $ 15,715,000
Interest rate [29],[30],[31],[33],[43]   9.50%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.00%
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., Partnership Units    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 26,000  
Fair value at ending balance $ 33,000 [4],[35] $ 26,000 [8],[33]
Investment owned, balance (in shares) 4,673 [4],[35] 4,673 [8],[33]
Investment, Identifier [Axis]: TSYL Corporate Buyer, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (4,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[41] $ (4,000) [8],[30],[31],[33],[43]
Interest rate 9.20% [4],[35],[37],[40],[41] 9.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Tank Holding Corp, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.50% [1],[35],[39],[40],[42] 0.70% [2],[31],[32],[33],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[51] $ 13,792,000  
Fair value at ending balance $ 13,740,000 [35],[39],[40],[42] $ 13,792,000 [31],[32],[33],[51]
Interest rate 10.00% [35],[39],[40],[42] 10.20% [31],[32],[33],[51]
Basis spread on variable rate 5.75% [35],[39],[40],[42] 5.75% [31],[32],[33],[51]
Investment, Identifier [Axis]: Tank Holding Corp, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.30% [1],[4],[35],[39],[40] 0.30% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 6,346,000  
Fair value at ending balance $ 6,629,000 [4],[35],[39],[40] $ 6,346,000 [8],[31],[33],[43],[48]
Interest rate 10.30% [4],[35],[39],[40] 10.70% [8],[31],[33],[43],[48]
Basis spread on variable rate 6.00% [4],[35],[39],[40] 6.00% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Tank Holding Corp, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[51]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[51] $ (9,000)  
Fair value at ending balance $ (7,000) [4],[35],[37],[39],[40] $ (9,000) [8],[31],[33],[43],[51]
Interest rate 10.00% [4],[35],[37],[39],[40] 10.20% [8],[31],[33],[43],[51]
Basis spread on variable rate 5.75% [4],[35],[37],[39],[40] 5.75% [8],[31],[33],[43],[51]
Investment, Identifier [Axis]: Tanqueray Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[59] 0.10% [2],[10],[29],[31],[33],[43],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[60] $ 1,643,000  
Fair value at ending balance $ 1,776,000 [6],[35],[37],[38],[40],[59] $ 1,643,000 [10],[29],[31],[33],[43],[60]
Interest rate 9.50% [6],[35],[37],[38],[40],[59] 10.00% [10],[29],[31],[33],[43],[60]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[59] 5.25% [10],[29],[31],[33],[43],[60]
Investment, Identifier [Axis]: Team Air Distributing, LLC, Partnership Equity    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 625,000  
Fair value at ending balance $ 429,000 [35],[49] $ 625,000 [11],[33]
Investment owned, balance (in shares) 516,640.2 [35],[49] 516,640 [11],[33]
Investment, Identifier [Axis]: Team Air Distributing, LLC, Subordinated Term Loan    
Percent of net assets [1],[4],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35] $ 741,000  
Interest rate [4],[35] 14.00%  
Investment, Identifier [Axis]: Team Air Distributing, LLC, Subordinated Term Loan 1    
Percent of net assets [2],[8],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 114,000  
Fair value at ending balance [8],[33]   $ 114,000
Interest rate [8],[33]   12.00%
Investment, Identifier [Axis]: Team Air Distributing, LLC, Subordinated Term Loan 2    
Percent of net assets [2],[8],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] 588,000  
Fair value at ending balance [8],[33]   $ 588,000
Interest rate [8],[33]   12.00%
Investment, Identifier [Axis]: Team Air Distributing, LLC, Subordinated Term Loan 3    
Percent of net assets [2],[8],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 35,000  
Fair value at ending balance [8],[33]   $ 35,000
Interest rate [8],[33]   12.00%
Investment, Identifier [Axis]: Team Health Holdings Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 7,185,000  
Interest rate [39],[40],[44] 8.80%  
Basis spread on variable rate [39],[40],[44] 4.50%  
Investment, Identifier [Axis]: Technology Service Stream BidCo Pty Ltd, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[37],[38],[40],[58] 0.00% [2],[10],[29],[31],[33],[43],[47]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[47] $ 677,000  
Fair value at ending balance $ 812,000 [6],[35],[37],[38],[40],[58] $ 677,000 [10],[29],[31],[33],[43],[47]
Interest rate 8.90% [6],[35],[37],[38],[40],[58] 10.30% [10],[29],[31],[33],[43],[47]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[58] 5.50% [10],[29],[31],[33],[43],[47]
Investment, Identifier [Axis]: Techone B.V., First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[45] 0.30% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 5,631,000  
Fair value at ending balance $ 6,409,000 [6],[35],[38],[40],[45] $ 5,631,000 [10],[29],[31],[33],[46]
Interest rate 7.40% [6],[35],[38],[40],[45] 8.70% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.40% [6],[35],[38],[40],[45] 5.40% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: Techone B.V., Revolver    
Percent of net assets 0.00% [1],[4],[6],[35],[37],[40],[45] 0.00% [2],[8],[10],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[31],[33],[43],[46] $ (2,000)  
Fair value at ending balance $ (1,000) [4],[6],[35],[37],[40],[45] $ (2,000) [8],[10],[31],[33],[43],[46]
Interest rate 7.40% [4],[6],[35],[37],[40],[45] 8.70% [8],[10],[31],[33],[43],[46]
Basis spread on variable rate 5.40% [4],[6],[35],[37],[40],[45] 5.40% [8],[10],[31],[33],[43],[46]
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 1.00% [1],[35],[37],[38],[40],[41],[42] 0.50% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 10,626,000  
Fair value at ending balance $ 25,281,000 [35],[37],[38],[40],[41],[42] $ 10,626,000 [29],[30],[31],[32],[33]
Interest rate 8.90% [35],[37],[38],[40],[41],[42] 9.80% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41],[42] 5.00% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Tencarva Machinery Company, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (31,000)  
Fair value at ending balance $ (46,000) [4],[35],[37],[40],[41] $ (31,000) [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[40],[41] 9.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 5.00% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Terrybear, Inc., Common Stock    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 14,000  
Investment owned, balance (in shares) [35],[49] 24,359  
Investment, Identifier [Axis]: Terrybear, Inc., Partnership Equity    
Percent of net assets [2],[11],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 120,000  
Fair value at ending balance [11],[33]   $ 120,000
Investment owned, balance (in shares) [11],[33]   24,359
Investment, Identifier [Axis]: Terrybear, Inc., Subordinated Term Loan    
Percent of net assets 0.00% [1],[4],[35] 0.00% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 268,000  
Fair value at ending balance $ 265,000 [4],[35] $ 268,000 [8],[33]
Interest rate 10.00% [4],[35] 10.00% [8],[33]
Interest, pik 4.00% [4],[35] 4.00% [8],[33]
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), First Lien Senior Secured Term Loan    
Percent of net assets 0.90% [1],[35],[37],[38],[40],[41],[42] 0.20% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 3,950,000  
Fair value at ending balance $ 23,288,000 [35],[37],[38],[40],[41],[42] $ 3,950,000 [29],[30],[31],[32],[33]
Interest rate 8.90% [35],[37],[38],[40],[41],[42] 8.80% [29],[30],[31],[32],[33]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41],[42] 4.25% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 0  
Fair value at ending balance $ (33,000) [4],[35],[37],[40],[41] $ 0 [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[40],[41] 8.80% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 4.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: The Caprock Group, Inc. (aka TA/TCG Holdings, LLC), Subordinated Term Loan    
Percent of net assets [2],[8],[31],[33],[51]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[51] $ 5,656,000  
Fair value at ending balance [8],[31],[33],[51]   $ 5,656,000
Interest rate [8],[31],[33],[51]   10.50%
Basis spread on variable rate [8],[31],[33],[51]   5.75%
Investment, Identifier [Axis]: The Octave Music Group, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[4],[38],[41],[44] 0.50% [2],[29],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31] $ 10,785,000  
Fair value at ending balance $ 18,598,000 [4],[38],[41],[44] $ 10,785,000 [29],[30],[31]
Interest rate 8.70% [4],[38],[41],[44] 9.10% [29],[30],[31]
Basis spread on variable rate 4.75% [4],[38],[41],[44] 4.75% [29],[30],[31]
Investment, Identifier [Axis]: The Octave Music Group, Inc., Partnership Equity    
Percent of net assets 0.00% [1],[4],[35],[49] 0.10% [2],[8],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[33] $ 1,139,000  
Fair value at ending balance $ 1,025,000 [4],[35],[49] $ 1,139,000 [8],[33]
Investment owned, balance (in shares) 353,584.39 [4],[35],[49] 353,584.39 [8],[33]
Investment, Identifier [Axis]: The Travel Corporation, First Lien Senior Secured Term Loan    
Percent of net assets [1],[39],[40],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 4,881,000  
Interest rate [39],[40],[44] 8.80%  
Basis spread on variable rate [39],[40],[44] 4.50%  
Investment, Identifier [Axis]: Thompson Rivers LLC, Member Interest    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance $ 2,860,000 $ 5,304,000
Gross Additions 0 [12] 0 [13]
Gross Reductions (951,000) [14] (2,378,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (54,000) (66,000)
Fair value at ending balance 1,855,000 2,860,000
Amount of Interest or Dividends Credited to Income $ 0 [16] $ 0 [17]
Investment, Identifier [Axis]: Thompson Rivers LLC, Member Interest    
Percent of net assets 0.10% [1],[3],[4],[5],[6] 0.10% [2],[7],[8],[9],[11]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [7],[8],[9],[11] $ 2,860,000  
Fair value at ending balance $ 1,855,000 [3],[4],[5],[6] $ 2,860,000 [7],[8],[9],[11]
Investment, Identifier [Axis]: TricorBraun Holdings Inc, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[39],[40],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [39],[40],[44] $ 3,981,000  
Interest rate [39],[40],[44] 7.40%  
Basis spread on variable rate [39],[40],[44] 3.25%  
Investment, Identifier [Axis]: Trident Maritime Systems, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[29],[30],[31],[33]   0.40%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33] $ 8,577,000  
Fair value at ending balance [8],[29],[30],[31],[33]   $ 8,577,000
Interest rate [8],[29],[30],[31],[33]   10.30%
Basis spread on variable rate [8],[29],[30],[31],[33]   5.50%
Investment, Identifier [Axis]: Trident Maritime Systems, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[38],[40],[41] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[38],[40],[41] $ 7,856,000  
Interest rate [4],[35],[38],[40],[41] 5.10%  
Interest, pik [4],[35],[38],[40],[41] 6.80%  
Basis spread on variable rate [4],[35],[38],[40],[41] 1.00%  
Investment, Identifier [Axis]: Trident TPI Holdings Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[37],[40],[41],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [37],[40],[41],[44] $ 6,184,000  
Interest rate [37],[40],[41],[44] 7.80%  
Basis spread on variable rate [37],[40],[41],[44] 3.75%  
Investment, Identifier [Axis]: Trintech, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.50% [1],[35],[38],[39],[40] 0.60% [2],[29],[31],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 12,252,000  
Fair value at ending balance $ 12,302,000 [35],[38],[39],[40] $ 12,252,000 [29],[31],[33],[48]
Interest rate 9.70% [35],[38],[39],[40] 10.10% [29],[31],[33],[48]
Basis spread on variable rate 5.50% [35],[38],[39],[40] 5.50% [29],[31],[33],[48]
Investment, Identifier [Axis]: Trintech, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 386,000  
Fair value at ending balance $ 402,000 [4],[35],[37],[39],[40] $ 386,000 [8],[31],[33],[43],[48]
Interest rate 9.70% [4],[35],[37],[39],[40] 10.10% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.50% [4],[35],[37],[39],[40] 5.50% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: Turbo Buyer, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.40% [1],[35],[38],[40],[41],[42] 0.60% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 11,765,000  
Fair value at ending balance $ 11,808,000 [35],[38],[40],[41],[42] $ 11,765,000 [29],[30],[31],[32],[33]
Interest rate 10.20% [35],[38],[40],[41],[42] 10.80% [29],[30],[31],[32],[33]
Basis spread on variable rate 6.00% [35],[38],[40],[41],[42] 6.00% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Turnberry Solutions, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[39],[40],[42] 0.10% [2],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [31],[32],[33],[48] $ 2,592,000  
Fair value at ending balance $ 2,572,000 [35],[39],[40],[42] $ 2,592,000 [31],[32],[33],[48]
Interest rate 10.00% [35],[39],[40],[42] 10.40% [31],[32],[33],[48]
Basis spread on variable rate 5.75% [35],[39],[40],[42] 5.75% [31],[32],[33],[48]
Investment, Identifier [Axis]: UBC Ledgers Holding AB, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[45] 0.00% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 536,000  
Fair value at ending balance $ 770,000 [6],[35],[38],[40],[45] $ 536,000 [10],[29],[31],[33],[46]
Interest rate 7.30% [6],[35],[38],[40],[45] 9.60% [10],[29],[31],[33],[46]
Basis spread on variable rate 5.25% [6],[35],[38],[40],[45] 5.25% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: UBC Ledgers Holding AB, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[81] 0.10% [2],[10],[29],[31],[33],[43],[82]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[82] $ 1,450,000  
Fair value at ending balance $ 1,704,000 [6],[35],[37],[38],[40],[81] $ 1,450,000 [10],[29],[31],[33],[43],[82]
Interest rate 7.30% [6],[35],[37],[38],[40],[81] 8.40% [10],[29],[31],[33],[43],[82]
Basis spread on variable rate 5.25% [6],[35],[37],[38],[40],[81] 5.25% [10],[29],[31],[33],[43],[82]
Investment, Identifier [Axis]: UHY Advisors, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 0.60% [1],[35],[37],[38],[40],[41] 0.70% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 14,692,000  
Fair value at ending balance $ 15,860,000 [35],[37],[38],[40],[41] $ 14,692,000 [29],[30],[31],[33],[43]
Interest rate 8.90% [35],[37],[38],[40],[41] 9.30% [29],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [35],[37],[38],[40],[41] 4.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: UHY Advisors, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (40,000)  
Fair value at ending balance $ 309,000 [4],[35],[37],[40],[41] $ (40,000) [8],[30],[31],[33],[43]
Interest rate 8.90% [4],[35],[37],[40],[41] 9.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 4.75% [4],[35],[37],[40],[41] 4.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: UKFast Leaders Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[59] 0.20% [2],[10],[29],[31],[33],[60]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[60] $ 4,281,000  
Fair value at ending balance $ 4,783,000 [6],[35],[38],[40],[59] $ 4,281,000 [10],[29],[31],[33],[60]
Interest rate 11.30% [6],[35],[38],[40],[59] 12.30% [10],[29],[31],[33],[60]
Basis spread on variable rate 7.25% [6],[35],[38],[40],[59] 7.25% [10],[29],[31],[33],[60]
Investment, Identifier [Axis]: US Bank National Association Series 2025-1, Structured Note - Class R    
Percent of net assets [1],[4],[6],[35],[40],[41] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[35],[40],[41] $ 3,895,000  
Interest rate [4],[6],[35],[40],[41] 11.90%  
Basis spread on variable rate [4],[6],[35],[40],[41] 7.50%  
Investment, Identifier [Axis]: US Bank National Association Series 2025-2, Structured Note - Class R    
Percent of net assets [1],[4],[6],[39],[40] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[6],[39],[40] $ 10,250,000  
Interest rate [4],[6],[39],[40] 10.90%  
Basis spread on variable rate [4],[6],[39],[40] 7.00%  
Investment, Identifier [Axis]: USI Inc, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 1,997,000  
Interest rate [40],[41],[44] 6.30%  
Basis spread on variable rate [40],[41],[44] 2.25%  
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.), First Lien Senior Secured Term Loan 1    
Percent of net assets 0.30% [1],[35],[37],[38],[40],[41],[42] 0.30% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 5,770,000  
Fair value at ending balance $ 8,326,000 [35],[37],[38],[40],[41],[42] $ 5,770,000 [29],[30],[31],[32],[33]
Interest rate 10.00% [35],[37],[38],[40],[41],[42] 10.50% [29],[30],[31],[32],[33]
Basis spread on variable rate 5.50% [35],[37],[38],[40],[41],[42] 5.75% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: USLS Acquisition, Inc. (f/k/a US Legal Support, Inc.), First Lien Senior Secured Term Loan 2    
Percent of net assets 0.10% [1],[35],[40],[41],[42] 0.10% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 2,122,000  
Fair value at ending balance $ 2,108,000 [35],[40],[41],[42] $ 2,122,000 [29],[30],[31],[33]
Interest rate 10.00% [35],[40],[41],[42] 10.50% [29],[30],[31],[33]
Basis spread on variable rate 5.50% [35],[40],[41],[42] 5.75% [29],[30],[31],[33]
Investment, Identifier [Axis]: Union Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[61] 0.10% [2],[10],[29],[31],[33],[43],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[62] $ 2,492,000  
Fair value at ending balance $ 2,808,000 [6],[35],[37],[38],[40],[61] $ 2,492,000 [10],[29],[31],[33],[43],[62]
Interest rate 9.00% [6],[35],[37],[38],[40],[61] 9.80% [10],[29],[31],[33],[43],[62]
Basis spread on variable rate 4.30% [6],[35],[37],[38],[40],[61] 4.84% [10],[29],[31],[33],[43],[62]
Investment, Identifier [Axis]: United Therapy Holding III GmbH, First Lien Senior Secured Term Loan    
Percent of net assets [2],[10],[29],[31],[33],[43],[46]   0.10%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 1,120,000  
Fair value at ending balance [10],[29],[31],[33],[43],[46]   $ 1,120,000
Interest rate [10],[29],[31],[33],[43],[46]   10.00%
Basis spread on variable rate [10],[29],[31],[33],[43],[46]   6.75%
Investment, Identifier [Axis]: Unither (Uniholding), First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[45] 0.10% [2],[10],[29],[31],[33],[43],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[46] $ 1,962,000  
Fair value at ending balance $ 2,227,000 [6],[35],[37],[38],[40],[45] $ 1,962,000 [10],[29],[31],[33],[43],[46]
Interest rate 6.50% [6],[35],[37],[38],[40],[45] 8.30% [10],[29],[31],[33],[43],[46]
Basis spread on variable rate 4.45% [6],[35],[37],[38],[40],[45] 4.93% [10],[29],[31],[33],[43],[46]
Investment, Identifier [Axis]: Unosquare, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[39] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[39] $ 8,906,000  
Interest rate [35],[37],[38],[39] 8.90%  
Basis spread on variable rate [35],[37],[38],[39] 4.75%  
Investment, Identifier [Axis]: Unosquare, LLC, LLC Units    
Percent of net assets [1],[35],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[49] $ 384,000  
Investment owned, balance (in shares) [35],[49] 383,736.4  
Investment, Identifier [Axis]: Unosquare, LLC, Revolver    
Percent of net assets [1],[4],[35],[37],[39],[40] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[39],[40] $ (27,000)  
Interest rate [4],[35],[37],[39],[40] 8.90%  
Basis spread on variable rate [4],[35],[37],[39],[40] 4.75%  
Investment, Identifier [Axis]: Utac Ceram, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[41],[42] 0.00% [2],[10],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[30],[31],[33] $ 235,000  
Fair value at ending balance $ 249,000 [6],[35],[38],[40],[41],[42] $ 235,000 [10],[29],[30],[31],[33]
Interest rate 8.90% [6],[35],[38],[40],[41],[42] 9.40% [10],[29],[30],[31],[33]
Interest, pik 2.40% [6],[35],[38],[40],[41],[42] 1.80% [10],[29],[30],[31],[33]
Basis spread on variable rate 4.00% [6],[35],[38],[40],[41],[42] 6.75% [10],[29],[30],[31],[33]
Investment, Identifier [Axis]: Utac Ceram, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[42],[45] 0.00% [2],[10],[29],[31],[33],[46]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[46] $ 800,000  
Fair value at ending balance $ 966,000 [6],[35],[38],[40],[42],[45] $ 800,000 [10],[29],[31],[33],[46]
Interest rate 8.20% [6],[35],[38],[40],[42],[45] 4.90% [10],[29],[31],[33],[46]
Interest, pik 2.40% [6],[35],[38],[40],[42],[45] 2.40% [10],[29],[31],[33],[46]
Basis spread on variable rate 6.15% [6],[35],[38],[40],[42],[45] 4.60% [10],[29],[31],[33],[46]
Investment, Identifier [Axis]: VB Spine Intermediary II LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[35],[41],[42] 2.50%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[41],[42] $ 66,128,000  
Interest rate [4],[35],[41],[42] 12.50%  
Basis spread on variable rate [4],[35],[41],[42] 8.50%  
Investment, Identifier [Axis]: VB Spine Intermediary II LLC, LLC Units    
Percent of net assets [1],[4],[35],[40],[42],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[40],[42],[49] $ 0  
Investment owned, balance (in shares) [4],[35],[40],[42],[49] 1,151,506  
Investment, Identifier [Axis]: VP Holding Company, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[29],[30],[31],[32],[33]   1.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[32],[33] $ 20,627,000  
Fair value at ending balance [8],[29],[30],[31],[32],[33]   $ 20,627,000
Interest rate [8],[29],[30],[31],[32],[33]   10.80%
Basis spread on variable rate [8],[29],[30],[31],[32],[33]   6.25%
Investment, Identifier [Axis]: Validity, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[31],[33],[48]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[33],[48] $ 939,000  
Fair value at ending balance [29],[31],[33],[48]   $ 939,000
Interest rate [29],[31],[33],[48]   9.90%
Basis spread on variable rate [29],[31],[33],[48]   5.25%
Investment, Identifier [Axis]: Vibrantz Technologies Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[4],[40],[41],[42],[44] 0.40%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[40],[41],[42],[44] $ 9,993,000  
Interest rate [4],[40],[41],[42],[44] 8.70%  
Basis spread on variable rate [4],[40],[41],[42],[44] 4.25%  
Investment, Identifier [Axis]: Victoria Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.20% [1],[6],[35],[38],[40],[42],[61] 0.30% [2],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 5,135,000  
Fair value at ending balance $ 5,446,000 [6],[35],[38],[40],[42],[61] $ 5,135,000 [10],[29],[31],[33],[62]
Interest rate 10.70% [6],[35],[38],[40],[42],[61] 11.70% [10],[29],[31],[33],[62]
Basis spread on variable rate 6.50% [6],[35],[38],[40],[42],[61] 6.50% [10],[29],[31],[33],[62]
Investment, Identifier [Axis]: Vision Solutions Inc., First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[42],[44] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[42],[44] $ 960,000  
Interest rate [40],[41],[42],[44] 8.60%  
Basis spread on variable rate [40],[41],[42],[44] 4.00%  
Investment, Identifier [Axis]: Vista Global Holding Ltd, Structured Secured Note - Class C    
Percent of net assets 0.10% [1],[4],[6],[42] 0.20% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 3,962,000  
Fair value at ending balance $ 3,869,000 [4],[6],[42] $ 3,962,000 [8],[10],[33]
Interest rate 9.50% [4],[6],[42] 9.50% [8],[10],[33]
Investment, Identifier [Axis]: VistaJet Pass Through Trust 2021-1B, Structured Secured Note - Class B    
Percent of net assets [2],[8],[10],[33]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 6,321,000  
Fair value at ending balance [8],[10],[33]   $ 6,321,000
Interest rate [8],[10],[33]   6.30%
Investment, Identifier [Axis]: Vital Buyer, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[30],[31],[32],[33]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[32],[33] $ 4,742,000  
Fair value at ending balance [8],[30],[31],[32],[33]   $ 4,742,000
Interest rate [8],[30],[31],[32],[33]   10.00%
Basis spread on variable rate [8],[30],[31],[32],[33]   5.50%
Investment, Identifier [Axis]: Vital Buyer, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[4],[35],[37],[38],[40],[41],[42] 2.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [4],[35],[37],[38],[40],[41],[42] $ 61,066,000  
Interest rate [4],[35],[37],[38],[40],[41],[42] 8.70%  
Basis spread on variable rate [4],[35],[37],[38],[40],[41],[42] 4.50%  
Investment, Identifier [Axis]: Vital Buyer, LLC, Partnership Units    
Percent of net assets 0.00% [1],[35] 0.00% [2],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 26,000  
Fair value at ending balance $ 29,000 [35] $ 26,000 [33]
Investment owned, balance (in shares) 1,096.2 [35] 1,096.2 [33]
Investment, Identifier [Axis]: Voya CLO 2024-5, Ltd., Subordinated Structured Notes    
Percent of net assets 0.20% [1],[4],[6],[40],[41],[42] 0.30% [2],[8],[10],[30],[31]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[30],[31] $ 5,074,000  
Fair value at ending balance $ 5,070,000 [4],[6],[40],[41],[42] $ 5,074,000 [8],[10],[30],[31]
Interest rate 10.20% [4],[6],[40],[41],[42] 10.60% [8],[10],[30],[31]
Basis spread on variable rate 5.90% [4],[6],[40],[41],[42] 5.90% [8],[10],[30],[31]
Investment, Identifier [Axis]: W2O Holdings, Inc., First Lien Senior Secured Term Loan    
Percent of net assets [2],[8],[29],[30],[31],[33]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[29],[30],[31],[33] $ 3,122,000  
Fair value at ending balance [8],[29],[30],[31],[33]   $ 3,122,000
Interest rate [8],[29],[30],[31],[33]   9.30%
Basis spread on variable rate [8],[29],[30],[31],[33]   4.75%
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[37],[38],[41],[42] 0.90%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[41],[42] $ 23,891,000  
Interest rate [35],[37],[38],[41],[42] 9.40%  
Basis spread on variable rate [35],[37],[38],[41],[42] 5.00%  
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [2],[29],[30],[31],[33],[43]   0.30%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 5,133,000  
Fair value at ending balance [29],[30],[31],[33],[43]   $ 5,133,000
Interest rate [29],[30],[31],[33],[43]   9.70%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.00%
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[30],[31],[33]   0.70%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] 12,898,000  
Fair value at ending balance [29],[30],[31],[33]   $ 12,898,000
Interest rate [29],[30],[31],[33]   9.70%
Basis spread on variable rate [29],[30],[31],[33]   5.00%
Investment, Identifier [Axis]: WEST-NR ACQUISITIONCO, LLC, First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[29],[30],[31],[33],[43]   0.20%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 4,765,000  
Fair value at ending balance [29],[30],[31],[33],[43]   $ 4,765,000
Interest rate [29],[30],[31],[33],[43]   9.70%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.00%
Investment, Identifier [Axis]: WWEC Holdings III Corp, First Lien Senior Secured Term Loan    
Percent of net assets 0.30% [1],[35],[37],[40],[41],[42] 0.50% [2],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ 8,927,000  
Fair value at ending balance $ 8,982,000 [35],[37],[40],[41],[42] $ 8,927,000 [29],[30],[31],[33],[43]
Interest rate 9.00% [35],[37],[40],[41],[42] 10.40% [29],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[40],[41],[42] 5.75% [29],[30],[31],[33],[43]
Investment, Identifier [Axis]: WWEC Holdings III Corp, Revolver    
Percent of net assets 0.00% [1],[35],[37],[40],[41],[42] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ (47,000)  
Fair value at ending balance $ (20,000) [35],[37],[40],[41],[42] $ (47,000) [8],[30],[31],[33],[43]
Interest rate 9.00% [35],[37],[40],[41],[42] 10.40% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.00% [35],[37],[40],[41],[42] 5.75% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Waccamaw River LLC, Member Interest    
Percent of net assets 0.20% [1],[3],[4],[5],[6] 0.50% [2],[7],[8],[9],[10]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [7],[8],[9],[10] $ 10,730,000  
Fair value at ending balance 5,433,000 [3],[4],[5],[6] $ 10,730,000 [7],[8],[9],[10]
Investment, Identifier [Axis]: Waccamaw River LLC, Member Interest    
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance 10,730,000 15,470,000
Gross Additions 0 [12] 0 [13]
Gross Reductions (4,925,000) [14] (2,087,000) [15]
Realized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax 0 0
Unrealized Gain (Loss), Derivative and Foreign Currency Transaction Price Change, Operating, before Tax (372,000) (2,653,000)
Fair value at ending balance 5,433,000 10,730,000
Amount of Interest or Dividends Credited to Income $ 745,000 [16] $ 3,534,000 [17]
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 1    
Percent of net assets 1.90% [1],[4],[35],[37],[38],[40],[41],[42] 0.60% [2],[29],[30],[31],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33] $ 11,264,000  
Fair value at ending balance $ 49,768,000 [4],[35],[37],[38],[40],[41],[42] $ 11,264,000 [29],[30],[31],[33]
Interest rate 9.00% [4],[35],[37],[38],[40],[41],[42] 10.60% [29],[30],[31],[33]
Basis spread on variable rate 5.00% [4],[35],[37],[38],[40],[41],[42] 5.50% [29],[30],[31],[33]
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 2    
Percent of net assets [2],[29],[30],[31],[33],[43]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[33],[43] $ (227,000)  
Fair value at ending balance [29],[30],[31],[33],[43]   $ (227,000)
Interest rate [29],[30],[31],[33],[43]   10.60%
Basis spread on variable rate [29],[30],[31],[33],[43]   5.50%
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., First Lien Senior Secured Term Loan 3    
Percent of net assets [2],[8],[31],[33],[48]   0.50%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[48] $ 10,190,000  
Fair value at ending balance [8],[31],[33],[48]   $ 10,190,000
Interest rate [8],[31],[33],[48]   11.10%
Basis spread on variable rate [8],[31],[33],[48]   6.50%
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., LP Units    
Percent of net assets 0.10% [1],[4],[35],[42],[49] 0.10% [2],[8],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[11],[33] $ 1,300,000  
Fair value at ending balance $ 1,474,000 [4],[35],[42],[49] $ 1,300,000 [8],[11],[33]
Investment owned, balance (in shares) 84,116.1 [4],[35],[42],[49] 84,116.1 [8],[11],[33]
Investment, Identifier [Axis]: Whitcraft Holdings, Inc., Revolver    
Percent of net assets 0.20% [1],[4],[35],[37],[40],[41],[42] 0.10% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 1,325,000  
Fair value at ending balance $ 5,455,000 [4],[35],[37],[40],[41],[42] $ 1,325,000 [8],[31],[33],[43],[48]
Interest rate 9.00% [4],[35],[37],[40],[41],[42] 11.10% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[40],[41],[42] 6.50% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: White Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[6],[35],[37],[38],[40],[42],[54] 0.10% [2],[8],[10],[29],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[29],[30],[31],[33],[43] $ 1,747,000  
Fair value at ending balance $ 1,619,000 [6],[35],[37],[38],[40],[42],[54] $ 1,747,000 [8],[10],[29],[30],[31],[33],[43]
Interest rate 7.20% [37],[38],[40],[42],[54] 10.20% [8],[10],[29],[30],[31],[33],[43]
Basis spread on variable rate 5.25% [37],[38],[40],[42],[54] 5.50% [8],[10],[29],[30],[31],[33],[43]
Investment, Identifier [Axis]: White Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[6],[35],[38],[40],[41],[42] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[41],[42] $ 1,723,000  
Interest rate [6],[35],[38],[40],[41],[42] 9.10%  
Basis spread on variable rate [6],[35],[38],[40],[41],[42] 4.75%  
Investment, Identifier [Axis]: White Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets [1],[6],[35],[38],[40],[41],[42] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[40],[41],[42] $ 518,000  
Interest rate [6],[35],[38],[40],[41],[42] 9.10%  
Basis spread on variable rate [6],[35],[38],[40],[41],[42] 4.75%  
Investment, Identifier [Axis]: Wilsonart LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[44] 0.20%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[44] $ 4,664,000  
Interest rate [40],[41],[44] 8.30%  
Basis spread on variable rate [40],[41],[44] 4.25%  
Investment, Identifier [Axis]: Windstream Services LLC, First Lien Senior Secured Term Loan    
Percent of net assets [1],[35],[40],[41],[42],[44] 0.10%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[40],[41],[42],[44] $ 2,371,000  
Interest rate [35],[40],[41],[42],[44] 8.00%  
Basis spread on variable rate [35],[40],[41],[42],[44] 4.00%  
Investment, Identifier [Axis]: Woodland Foods, LLC, Common Stock    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 921,000  
Fair value at ending balance $ 1,026,000 [35],[49] $ 921,000 [11],[33]
Investment owned, balance (in shares) 1,204.46 [35],[49] 1,204.46 [11],[33]
Investment, Identifier [Axis]: Woodland Foods, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.70% [1],[35],[38],[40],[41],[42] 0.40% [2],[29],[30],[31],[32],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33] $ 8,749,000  
Fair value at ending balance $ 18,593,000 [35],[38],[40],[41],[42] $ 8,749,000 [29],[30],[31],[32],[33]
Interest rate 9.80% [35],[38],[40],[41],[42] 9.90% [29],[30],[31],[32],[33]
Basis spread on variable rate 5.50% [35],[38],[40],[41],[42] 5.25% [29],[30],[31],[32],[33]
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock    
Percent of net assets [2],[33]   0.00%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [33] $ 309,000  
Fair value at ending balance [33]   $ 309,000
Interest, pik [33]   20.00%
Investment owned, balance (in shares) [33]   263.6
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock 1    
Percent of net assets [1],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35] $ 358,000  
Interest, pik [35] 20.00%  
Investment owned, balance (in shares) [35] 263.6  
Investment, Identifier [Axis]: Woodland Foods, LLC, Preferred Stock 2    
Percent of net assets [1],[35] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35] $ 122,000  
Interest, pik [35] 20.00%  
Investment owned, balance (in shares) [35] 85  
Investment, Identifier [Axis]: Woodland Foods, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[41],[42] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 755,000  
Fair value at ending balance $ (21,000) [4],[35],[37],[40],[41],[42] $ 755,000 [8],[30],[31],[33],[43]
Interest rate 9.80% [4],[35],[37],[40],[41],[42] 9.90% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.50% [4],[35],[37],[40],[41],[42] 5.25% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: World 50, Inc., First Lien Senior Secured Term Loan    
Percent of net assets 1.20% [1],[35],[38],[40],[42],[50] 1.70% [2],[29],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[48] $ 32,783,000  
Fair value at ending balance $ 32,797,000 [35],[38],[40],[42],[50] $ 32,783,000 [29],[31],[32],[33],[48]
Interest rate 8.60% [35],[38],[40],[42],[50] 10.30% [29],[31],[32],[33],[48]
Basis spread on variable rate 4.50% [35],[38],[40],[42],[50] 5.75% [29],[31],[32],[33],[48]
Investment, Identifier [Axis]: World 50, Inc., Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[40],[42],[50] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ (14,000)  
Fair value at ending balance $ 0 [4],[35],[37],[40],[42],[50] $ (14,000) [8],[31],[33],[43],[48]
Interest rate 8.60% [4],[35],[37],[40],[42],[50] 10.30% [8],[31],[33],[43],[48]
Basis spread on variable rate 4.50% [4],[35],[37],[40],[42],[50] 5.75% [8],[31],[33],[43],[48]
Investment, Identifier [Axis]: X Corp., First Lien Senior Secured Term Loan    
Percent of net assets [1],[40],[41],[42],[44] 0.30%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [40],[41],[42],[44] $ 6,808,000  
Interest rate [40],[41],[42],[44] 11.00%  
Basis spread on variable rate [40],[41],[42],[44] 6.50%  
Investment, Identifier [Axis]: Xeinadin Bidco Limited, Common Stock    
Percent of net assets 0.00% [1],[4],[6],[35],[42],[49] 0.00% [2],[8],[10],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[11],[33] $ 458,000  
Fair value at ending balance $ 984,000 [4],[6],[35],[42],[49] $ 458,000 [8],[10],[11],[33]
Investment owned, balance (in shares) 36,532,680 [4],[6],[35],[42],[49] 36,532,680 [8],[10],[11],[33]
Investment, Identifier [Axis]: Xeinadin Bidco Limited, First Lien Senior Secured Term Loan 1    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[42],[54] 0.00% [2],[10],[29],[31],[33],[53]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[53] $ 431,000  
Fair value at ending balance $ 1,096,000 [6],[35],[38],[40],[42],[54] $ 431,000 [10],[29],[31],[33],[53]
Interest rate 7.90% [6],[35],[38],[40],[42],[54] 8.20% [10],[29],[31],[33],[53]
Basis spread on variable rate 5.75% [6],[35],[38],[40],[42],[54] 5.25% [10],[29],[31],[33],[53]
Investment, Identifier [Axis]: Xeinadin Bidco Limited, First Lien Senior Secured Term Loan 2    
Percent of net assets 0.80% [1],[6],[35],[37],[38],[40],[42],[61] 0.90% [2],[10],[29],[31],[33],[43],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[43],[62] $ 18,283,000  
Fair value at ending balance $ 21,940,000 [6],[35],[37],[38],[40],[42],[61] $ 18,283,000 [10],[29],[31],[33],[43],[62]
Interest rate 9.70% [6],[35],[37],[38],[40],[42],[61] 10.00% [10],[29],[31],[33],[43],[62]
Basis spread on variable rate 5.75% [6],[35],[37],[38],[40],[42],[61] 5.25% [10],[29],[31],[33],[43],[62]
Investment, Identifier [Axis]: Xeinadin Bidco Limited, Subordinated Term Loan    
Percent of net assets 0.20% [1],[4],[6],[35],[40],[42] 0.30% [2],[8],[10],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[10],[33] $ 5,185,000  
Fair value at ending balance $ 6,476,000 [4],[6],[35],[40],[42] $ 5,185,000 [8],[10],[33]
Interest, pik 11.00% [4],[6],[35],[40],[42] 11.00% [8],[10],[33]
Investment, Identifier [Axis]: ZB Holdco LLC, First Lien Senior Secured Term Loan    
Percent of net assets [2],[29],[30],[31],[32],[33],[43]   0.60%
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[30],[31],[32],[33],[43] $ 11,291,000  
Fair value at ending balance [29],[30],[31],[32],[33],[43]   $ 11,291,000
Interest rate [29],[30],[31],[32],[33],[43]   10.30%
Basis spread on variable rate [29],[30],[31],[32],[33],[43]   5.50%
Investment, Identifier [Axis]: ZB Holdco LLC, First Lien Senior Secured Term Loan 1    
Percent of net assets [1],[35],[37],[38],[40],[41],[42] 1.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [35],[37],[38],[40],[41],[42] $ 25,352,000  
Interest rate [35],[37],[38],[40],[41],[42] 9.90%  
Basis spread on variable rate [35],[37],[38],[40],[41],[42] 5.75%  
Investment, Identifier [Axis]: ZB Holdco LLC, LLC Units    
Percent of net assets 0.00% [1],[35],[49] 0.00% [2],[11],[33]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [11],[33] $ 197,000  
Fair value at ending balance $ 298,000 [35],[49] $ 197,000 [11],[33]
Investment owned, balance (in shares) 152.7 [35],[49] 152.7 [11],[33]
Investment, Identifier [Axis]: ZB Holdco LLC, Revolver    
Percent of net assets 0.10% [1],[4],[35],[37],[40],[41] 0.00% [2],[8],[30],[31],[33],[43]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[30],[31],[33],[43] $ 495,000  
Fair value at ending balance $ 2,447,000 [4],[35],[37],[40],[41] $ 495,000 [8],[30],[31],[33],[43]
Interest rate 9.90% [4],[35],[37],[40],[41] 10.30% [8],[30],[31],[33],[43]
Basis spread on variable rate 5.75% [4],[35],[37],[40],[41] 5.50% [8],[30],[31],[33],[43]
Investment, Identifier [Axis]: Zeppelin Bidco Limited    
Percent of net assets [1],[6],[35],[38],[49] 0.00%  
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at ending balance [6],[35],[38],[49] $ 0  
Investment owned, balance (in shares) [6],[35],[38],[49] 439  
Investment, Identifier [Axis]: Zeppelin Bidco Limited, First Lien Senior Secured Term Loan    
Percent of net assets 0.00% [1],[6],[35],[38],[40],[42],[61] 0.10% [2],[10],[29],[31],[33],[62]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [10],[29],[31],[33],[62] $ 2,345,000  
Fair value at ending balance $ 1,284,000 [6],[35],[38],[40],[42],[61] $ 2,345,000 [10],[29],[31],[33],[62]
Interest rate [10],[29],[31],[33],[62]   11.20%
Interest, pik [6],[35],[38],[40],[42],[61] 11.30%  
Basis spread on variable rate 6.50% [6],[35],[38],[40],[42],[61] 6.25% [10],[29],[31],[33],[62]
Investment, Identifier [Axis]: eShipping, LLC, First Lien Senior Secured Term Loan    
Percent of net assets 0.10% [1],[35],[38],[39],[40],[42] 0.20% [2],[29],[31],[32],[33],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [29],[31],[32],[33],[48] $ 4,423,000  
Fair value at ending balance $ 3,792,000 [35],[38],[39],[40],[42] $ 4,423,000 [29],[31],[32],[33],[48]
Interest rate 9.20% [35],[38],[39],[40],[42] 9.70% [29],[31],[32],[33],[48]
Basis spread on variable rate 5.00% [35],[38],[39],[40],[42] 5.00% [29],[31],[32],[33],[48]
Investment, Identifier [Axis]: eShipping, LLC, Revolver    
Percent of net assets 0.00% [1],[4],[35],[37],[39],[40] 0.00% [2],[8],[31],[33],[43],[48]
Investments in and Advances to Affiliates, at Fair Value [Roll Forward]    
Fair value at beginning balance [8],[31],[33],[43],[48] $ 0  
Fair value at ending balance $ 50,000 [4],[35],[37],[39],[40] $ 0 [8],[31],[33],[43],[48]
Interest rate 9.20% [4],[35],[37],[39],[40] 9.70% [8],[31],[33],[43],[48]
Basis spread on variable rate 5.00% [4],[35],[37],[39],[40] 5.00% [8],[31],[33],[43],[48]
[1] Fair value as a percentage of net assets.
[2] Fair value as a percentage of net assets.
[3] Portfolio company does not issue shares or units; member interest is based on commitments.
[4] Some or all of the investment is or will be encumbered as security for the Company’s senior secured credit facility with Sumitomo Mitsui Banking Corporation initially entered into in March 2023 (as amended, restated, and otherwise modified from time to time, the “SMBC Credit Facility”).
[5] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns between 5% or more, up to 25% (inclusive), of the portfolio company’s voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the nine months ended September 30, 2025 were as follows:
December 31, 2024
Value
Gross Additions
(a)
Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)September 30,
2025
Value
Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Biolam Group (d)
First Lien Senior Secured Term
Loan (EURIBOR + 4.50%,
12.5% PIK)(e)
$— $3,355 $(55)$$1,274 $4,577 $(14)
Common Stock
(1,703,014 shares)
— — — — — — — 
Convertible Bonds
(3,173,310 shares)
— — — — — — — 
Ordinary Shares
(30,382,002 shares)
— — — — — — — 
Preferred Stock A
(83,384 shares)
— — — — — — — 
Preferred Stock A2
(27,077 shares)
— — — — — — — 
Preferred Stock B
(3,058,432 shares)
— — — — — — — 
Preferred Stock C
(22,307 shares)
— — — — — — — 
Preferred Stock O1
(2,673,324 shares)
— — — — — — — 
Preferred Stock O2
(269,231 shares)
— — — — — — — 
Warrants
(5,200,000 units)
— — — — — — — 
— 3,355 (55)1,274 4,577 (14)
Coastal Marina Holdings, LLC (d)
Subordinated Term Loan (8.0% Cash)
7,885 38 — — 7,931 535 
Subordinated Term Loan (8.0% Cash)
3,635 14 — — 3,656 243 
LLC Units (1,759,051 units)
8,426 — — — 1,566 9,992 — 
19,946 52 — — 1,581 21,579 778 
CPCF BPCC LLC
9.1% Member Interest
8,889 — (8,706)— (175)236 
8,889 — (8,706)— (175)236 
Eclipse Business Capital, LLC (d)
Revolver (SOFR + 6.50%, 10.8% Cash)
7,123 2,128 (4,300)— (10)4,941 588 
Second Lien Senior Secured Term Loan (7.5% Cash)
3,209 — — (3)3,209 187 
LLC units (63,139,338 units)
96,603 16 — — 1,878 98,497 8,748 
106,935 2,147 (4,300)— 1,865 106,647 9,523 
December 31, 2024
Value
Gross Additions
(a)
Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)September 30,
2025
Value
Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Rocade Holdings LLC (d)
Preferred LP Units (115,000 units) (SOFR + 6.00%, 10.3% PIK)
$124,083 $16,985 $— $— $(26)$141,042 $9,985 
Common LP Units (30.8 units)
315 — — — 1,236 1,551 399 
124,398 16,985 — — 1,210 142,593 10,384 
Thompson Rivers LLC
6.3% Member Interest
2,860 — (951)— (54)1,855 — 
2,860 — (951)— (54)1,855 — 
Waccamaw River LLC
20% Member Interest
10,730 — (4,925)— (372)5,433 745 
10,730 — (4,925)— (372)5,433 745 
Total Affiliate Investments$273,758 $22,539 $(18,937)$3 $5,329 $282,692 $21,652 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
(e) Non-accrual investment.
[6] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 16.9% of total investments at fair value as of September 30, 2025. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[7] Portfolio company does not issue shares or units; member interest is based on commitments.
[8] Some or all of the investment is or will be encumbered as security for the SMBC Credit Facility.
[9] As defined in the 1940 Act, the Company is deemed to be an “affiliated person” of the portfolio company as the Company owns between 5% or more, up to 25% (inclusive), of the portfolio company’s voting securities (“non-controlled affiliate”). Transactions related to investments in non-controlled “Affiliate Investments” for the year ended December 31, 2024 were as follows:
December 31, 2023
Value
Gross Additions
(a)
Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31, 2024
Value
Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Coastal Marina Holdings, LLC (d)
Subordinated Term Loan (8.0% Cash)
$7,824 $48 $— $— $13 $7,885 $714 
Subordinated Term Loan (8.0% Cash)
3,434 201 — — — 3,635 356 
LLC Units (1,759,051 units)
6,080 2,776 — — (430)8,426 — 
17,338 3,025 — — (417)19,946 1,070 
CPCF BPCC LLC
9.1% Member Interest
7,763 1,519 (212)— (181)8,889 1,236 
7,763 1,519 (212)— (181)8,889 1,236 
Eclipse Business Capital, LLC (d)
Revolver (SOFR + 7.25%, 11.9% Cash)
3,915 19,522 (16,300)— (14)7,123 465 
Second Lien Senior Secured Term Loan (7.5% Cash)
3,209 — — (4)3,209 341 
LLC units (63,139,338 units)
102,917 47 — — (6,361)96,603 10,513 
110,041 19,573 (16,300)— (6,379)106,935 11,319 
Rocade Holdings LLC (d)
Preferred LP Units (108,000 units) (SOFR + 6.0% PIK, 10.3% PIK)
114,113 13,289 (3,337)— 18 124,083 13,289 
Common LP Units (30.8 units)
1,092 — — — (777)315 — 
115,205 13,289 (3,337)— (759)124,398 13,289 
Thompson Rivers LLC
6.3% Member Interest
5,304 — (2,378)— (66)2,860 — 
5,304 — (2,378)— (66)2,860 — 
Waccamaw River LLC
20% Member Interest
15,470 — (2,087)— (2,653)10,730 3,534 
15,470 — (2,087)— (2,653)10,730 3,534 
Total Affiliate Investments$271,121 $37,406 $(24,314)$ $(10,455)$273,758 $30,448 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
[10] Investment is not a qualifying investment as defined under Section 55(a) of the 1940 Act. Non-qualifying assets represent 22.9% of total investments at fair value as of December 31, 2024. Qualifying assets must represent at least 70% of total assets at the time of acquisition of any additional non-qualifying assets. If at any time qualifying assets do not represent at least 70% of the Company’s total assets, the Company will be precluded from acquiring any additional non-qualifying asset until such time as it complies with the requirements of Section 55(a).
[11] Investment is non-income producing.
[12] Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
[13] Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
[14] Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
[15] Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
[16] Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
[17] Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
[18] The fair value of the investment was determined using significant unobservable inputs.
[19] The fair value of the investment was determined using significant unobservable inputs.
[20] As defined in in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management of policies of such portfolio company (including through a management agreement). Transactions as of and during the nine months ended September 30, 2025 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2024
Value
Gross Additions
(a)
Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)September 30,
2025
Value
Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Skyvault Holdings LLC (d)
First Lien Senior Secured Term Loan
(12.0% Cash)
$5,738 $19,579 $(289)$— $— $25,028 $1,483 
LLC Units
(8,342,544 units)
1,913 6,443 — — (14)8,342 — 
Total Control Investments$7,651 $26,022 $(289)$ $(14)$33,370 $1,483 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
[21] As defined in in the 1940 Act, the Company is deemed to be both an “affiliated person” and “control” the portfolio company because it owns more than 25% of the portfolio company’s outstanding voting securities or it has the power to exercise control over the management of policies of such portfolio company (including through a management agreement). Transactions as of and during the year ended December 31, 2024 in which the portfolio company is deemed to be a “Control Investment” of the Company were as follows:
December 31, 2023
Value
Gross Additions
(a)
Gross Reductions (b)Amount of Realized Gain (Loss)Amount of Unrealized Gain (Loss)December 31, 2024
Value
Amount of Interest or Dividends Credited to Income(c)
Portfolio CompanyType of Investment
Skyvault Holdings LLC (d)
First Lien Senior Secured Term Loan
(12.0% PIK)
$— $5,738 $— $— $— $5,738 $57 
LLC Units
(1,912,719.3 units)
— 1,913 — — — 1,913 — 
Total Control Investments$ $7,651 $ $ $ $7,651 $57 
(a) Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
(b)     Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
(c)    Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
(d) The fair value of the investment was determined using significant unobservable inputs.
[22] The fair value of the investment was determined using significant unobservable inputs.
[23] Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
[24] Gross additions include increases in the cost basis of investments resulting from new investments, follow-on investments, payment-in-kind interest or dividends, the amortization of any unearned income or discounts on debt investments, as applicable.
[25] Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
[26] Gross reductions include decreases in the total cost basis of investments resulting from principal repayments, sales and return of capital.
[27] Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
[28] Represents the total amount of interest, fees or dividends credited to income for the portion of the year an investment was included in the Affiliate category.
[29] Some or all of the investment is or will be encumbered as security for the Revolving Credit Facility.
[30] The interest rate on these loans is subject to 3 Month SOFR, which as of December 31, 2024 was 4.30510%.
[31] Debt investment includes interest rate floor feature.
[32] Some or all of the investment is or will be encumbered as security for the BPCC Debt Securitization.
[33] The fair value of the investment was determined using significant unobservable inputs.
[34] PIK non-accrual investment.
[35] The fair value of the investment was determined using significant unobservable inputs.
[36] PIK non-accrual investment.
[37] Position or portion thereof is an unfunded loan or equity commitment.
[38] Some or all of the investment is or will be encumbered as security for BPC Funding LLC’s $800.0 million senior secured revolving credit facility with BNP Paribas (as amended, restated and modified from time to time, the “Revolving Credit Facility”).
[39] The interest rate on these loans is subject to 1 Month SOFR, which as of September 30, 2025 was 4.12920%.
[40] Debt investment includes interest rate floor feature.
[41] The interest rate on these loans is subject to 3 Month SOFR, which as of September 30, 2025 was 3.97639%.
[42] Some or all of the investment is or will be encumbered as security for the Company’s term debt securitization (as initially completed in August 2023 and refinanced and upsized in September 2024, and as amended, restated and modified from time to time, the “BPCC Debt Securitization”).
[43] Position or portion thereof is an unfunded loan or equity commitment.
[44] Some or all of the investment is or will be encumbered as security for BPCC Senior Finance I, LLC’s $250.0 million senior secured credit facility with Bank of America, N.A. (the “BANA SPV Credit Facility”).
[45] The interest rate on these loans is subject to 3 Month EURIBOR, which as of September 30, 2025 was 2.03200%.
[46] The interest rate on these loans is subject to 3 Month EURIBOR, which as of December 31, 2024 was 2.71400%.
[47] The interest rate on these loans is subject to 6 Month BBSY, which as of December 31, 2024 was 4.49250%.
[48] The interest rate on these loans is subject to 1 Month SOFR, which as of December 31, 2024 was 4.33249%.
[49] Investment is non-income producing.
[50] The interest rate on these loans is subject to 6 Month SOFR, which as of September 30, 2025 was 3.84590%.
[51] The interest rate on these loans is subject to 6 Month SOFR, which as of December 31, 2024 was 4.25001%.
[52] Non-accrual investment.
[53] The interest rate on these loans is subject to 6 Month EURIBOR, which as of December 31, 2024 was 2.56800%.
[54] The interest rate on these loans is subject to 6 Month EURIBOR, which as of September 30, 2025 was 2.09600%.
[55] The interest rate on these loans is subject to 1 Month SONIA, which as of September 30, 2025 was 3.97500%.
[56] The interest rate on these loans is subject to 6 Month BBSY, which as of September 30, 2025 was 3.74600%.
[57] The interest rate on these loans is subject to 3 Month BBSY, which as of December 31, 2024 was 4.41630%.
[58] The interest rate on these loans is subject to 3 Month BBSY, which as of September 30, 2025 was 3.57640%.
[59] The interest rate on these loans is subject to 3 Month SONIA, which as of September 30, 2025 was 3.97260%.
[60] The interest rate on these loans is subject to 3 Month SONIA, which as of December 31, 2024 was 4.62330%.
[61] The interest rate on these loans is subject to 6 Month SONIA, which as of September 30, 2025 was 3.93900%.
[62] The interest rate on these loans is subject to 6 Month SONIA, which as of December 31, 2024 was 4.56370%.
[63] The interest rate on these loans is subject to 1 Month EURIBOR, which as of September 30, 2025 was 1.92900%.
[64] The interest rate on these loans is subject to 1 Month EURIBOR, which as of December 31, 2024 was 2.84500%.
[65] The interest rate on these loans is subject to 1 Month STIBOR, which as of December 31, 2024 was 2.59100%.
[66] Non-accrual investment.
[67] Non-accrual investment.
[68] The interest rate on these loans is subject to 3 Month CORRA, which as of September 30, 2025 was 2.56000%.
[69] The interest rate on these loans is subject to 3 Month CORRA, which as of December 31, 2024 was 3.15158%.
[70] The interest rate on these loans is subject to 1 Month BBSY, which as of September 30, 2025 was 3.53630%.
[71] The interest rate on these loans is subject to 3 Month BKBM, which as of September 30, 2025 was 2.93000%.
[72] The interest rate on these loans is subject to 3 Month BKBM, which as of December 31, 2024 was 4.27000%.
[73] The interest rate on these loans is subject to 3 Month SARON, which as of September 30, 2025 was -0.04090%.
[74] The interest rate on these loans is subject to 6 Month SARON, which as of December 31, 2024 was 1.01720%.
[75] The interest rate on these loans is subject to 1 Month SONIA, which as of December 31, 2024 was 4.71030%.
[76] The interest rate on these loans is subject to 1 Month NIBOR, which as of September 30, 2025 was 4.04000%.
[77] The interest rate on these loans is subject to 1 Month NIBOR, which as of December 31, 2024 was 4.61000%.
[78] The interest rate on these loans is subject to 1 Month BBSY, which as of December 31, 2024 was 4.32250%.
[79] The interest rate on these loans is subject to 6 Month SARON, which as of September 30, 2025 was -0.04508%.
[80] The fair value of the investment was determined using significant unobservable inputs.
[81] The interest rate on these loans is subject to 3 Month STIBOR, which as of September 30, 2025 was 1.88600%.
[82] The interest rate on these loans is subject to 3 Month STIBOR, which as of December 31, 2024 was 2.54200%.