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Unaudited Consolidated Schedule of Investments
€ in Millions, £ in Millions, kr in Millions, kr in Millions, $ in Millions, $ in Millions
Mar. 31, 2024
USD ($)
shares
Mar. 31, 2024
SEK (kr)
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Mar. 31, 2024
ISK (kr)
shares
Mar. 31, 2024
EUR (€)
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Mar. 31, 2024
GBP (£)
shares
Mar. 31, 2024
AUD ($)
shares
Mar. 31, 2024
CAD ($)
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2023
SEK (kr)
shares
Dec. 31, 2023
ISK (kr)
shares
Dec. 31, 2023
EUR (€)
shares
Dec. 31, 2023
GBP (£)
shares
Dec. 31, 2023
AUD ($)
shares
Dec. 31, 2022
USD ($)
Percent of net assets 208.80% [1] 208.80% [1] 208.80% [1] 208.80% [1] 208.80% [1] 208.80% [1] 208.80% [1] 213.90% [2] 213.90% [2] 213.90% [2] 213.90% [2] 213.90% [2] 213.90% [2]  
Amortized Cost $ 14,805,600,000             $ 15,420,000,000            
Fair Value $ 14,220,800,000 [3]             $ 14,649,000,000            
Liabilities in excess of other assets percentage 108.80% [1] 108.80% [1] 108.80% [1] 108.80% [1] 108.80% [1] 108.80% [1] 108.80% [1] 113.90% [2] 113.90% [2] 113.90% [2] 113.90% [2] 113.90% [2] 113.90% [2]  
Liabilities in excess of other assets [3] $ (7,408,800,000)                          
Net Assets $ 6,812,000,000 [3]             $ 6,849,000,000 [4],[5]            
Net Senior Secured Loans—First Lien                            
Percent of net assets 119.10% [1] 119.10% [1] 119.10% [1] 119.10% [1] 119.10% [1] 119.10% [1] 119.10% [1] 124.50% [2] 124.50% [2] 124.50% [2] 124.50% [2] 124.50% [2] 124.50% [2]  
Amortized Cost $ 8,372,300,000             $ 8,890,100,000 [4],[6]            
Fair Value 8,110,700,000 [3]             8,529,100,000 [4],[5],[6]            
Funded, Senior Secured Loans—First Lien                            
Amortized Cost 9,318,200,000             9,697,200,000 [4]            
Fair Value 9,056,600,000 [3]             9,336,200,000 [4],[5]            
Unfunded, Senior Secured Loans—First Lien                            
Amortized Cost (945,900,000)             (807,100,000) [4]            
Fair Value $ (945,900,000) [3]             $ (807,100,000) [4],[5]            
Net Senior Secured Loans—Second Lien                            
Percent of net assets 14.70% [1] 14.70% [1] 14.70% [1] 14.70% [1] 14.70% [1] 14.70% [1] 14.70% [1] 15.90% [2] 15.90% [2] 15.90% [2] 15.90% [2] 15.90% [2] 15.90% [2]  
Amortized Cost $ 982,900,000             $ 1,158,100,000            
Fair Value 1,003,800,000 [3]             1,089,800,000 [5]            
Funded, Senior Secured Loans—Second Lien                            
Amortized Cost 985,900,000             1,161,100,000            
Fair Value 1,006,800,000 [3]             1,092,800,000 [5]            
Unfunded, Senior Secured Loans—Second Lien                            
Amortized Cost (3,000,000.0)             (3,000,000.0)            
Fair Value $ (3,000,000.0) [3]             $ (3,000,000.0) [5]            
Other Senior Secured Debt                            
Percent of net assets 2.40% [1] 2.40% [1] 2.40% [1] 2.40% [1] 2.40% [1] 2.40% [1] 2.40% [1] 1.50% [2] 1.50% [2] 1.50% [2] 1.50% [2] 1.50% [2] 1.50% [2]  
Amortized Cost $ 158,800,000             $ 105,500,000            
Fair Value $ 154,300,000 [3]             $ 99,100,000 [5]            
Net Subordinated Debt                            
Percent of net assets 4.90% [1] 4.90% [1] 4.90% [1] 4.90% [1] 4.90% [1] 4.90% [1] 4.90% [1] 4.70% [2] 4.70% [2] 4.70% [2] 4.70% [2] 4.70% [2] 4.70% [2]  
Amortized Cost $ 326,500,000             $ 308,300,000            
Fair Value 334,200,000 [3]             322,600,000 [5]            
Funded, Subordinated Debt                            
Amortized Cost 343,900,000             334,800,000            
Fair Value 351,600,000 [3]             349,100,000 [5]            
Unfunded, Subordinated Debt                            
Amortized Cost (17,400,000)             (26,500,000)            
Fair Value $ (17,400,000) [3]             $ (26,500,000) [5]            
Net Asset Based Finance                            
Percent of net assets 30.50% [1] 30.50% [1] 30.50% [1] 30.50% [1] 30.50% [1] 30.50% [1] 30.50% [1] 30.30% [2] 30.30% [2] 30.30% [2] 30.30% [2] 30.30% [2] 30.30% [2]  
Amortized Cost $ 2,220,400,000             $ 2,237,100,000            
Fair Value 2,078,800,000 [3]             2,077,300,000 [5]            
Funded - Asset Based Finance                            
Amortized Cost 2,397,400,000             2,396,400,000            
Fair Value 2,255,800,000 [3]             2,236,600,000 [5]            
Unfunded - Asset Based Finance                            
Amortized Cost (177,000,000.0)                          
Fair Value [3] $ (177,000,000.0)                          
Unfunded, Asset Based Finance, Netting                            
Amortized Cost               (159,300,000)            
Fair Value [5]               $ (159,300,000)            
Credit Opportunities Partners JV, LLC                            
Percent of net assets 20.40% [1] 20.40% [1] 20.40% [1] 20.40% [1] 20.40% [1] 20.40% [1] 20.40% [1] 20.40% [2] 20.40% [2] 20.40% [2] 20.40% [2] 20.40% [2] 20.40% [2]  
Amortized Cost $ 1,571,700,000             $ 1,571,700,000            
Fair Value $ 1,390,300,000 [3]             $ 1,396,900,000 [5]            
Equity/Other                            
Percent of net assets 16.80% [1],[7] 16.80% [1],[7] 16.80% [1],[7] 16.80% [1],[7] 16.80% [1],[7] 16.80% [1],[7] 16.80% [1],[7] 16.60% [2],[8] 16.60% [2],[8] 16.60% [2],[8] 16.60% [2],[8] 16.60% [2],[8] 16.60% [2],[8]  
Amortized Cost $ 1,173,000,000             $ 1,149,000,000            
Fair Value $ 1,148,700,000 [3]             1,134,500,000 [5]            
Liabilities in excess of other assets [4],[5]               $ (7,800,300,000)            
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 1,500,000 [10],[12]             $ 2,200,000 [4],[13]            
Amortized Cost 1,500,000 [10]             2,200,000 [4]            
Fair Value $ 1,500,000 [3],[10]             $ 2,200,000 [4],[5]            
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [9],[10],[14],[15] 5.75% [4],[11],[16] 5.75% [4],[11],[16] 5.75% [4],[11],[16] 5.75% [4],[11],[16] 5.75% [4],[11],[16] 5.75% [4],[11],[16]  
Floor 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [4],[16] 0.80% [4],[16] 0.80% [4],[16] 0.80% [4],[16] 0.80% [4],[16] 0.80% [4],[16]  
Principal Amount $ 124,400,000 [10],[12],[14],[15]             $ 124,700,000 [4],[13],[16]            
Amortized Cost 123,800,000 [10],[14],[15]             124,000,000.0 [4],[16]            
Fair Value $ 124,500,000 [3],[10],[14],[15]             $ 122,700,000 [4],[5],[16]            
Investment, Identifier [Axis]: 3Pillar Global Inc, Software & Services 3                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 7,600,000 [10],[12],[17]             $ 6,900,000 [13],[18]            
Amortized Cost 7,600,000 [10],[17]             6,900,000 [18]            
Fair Value $ 7,600,000 [3],[10],[17]             $ 6,800,000 [5],[18]            
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [4],[11],[16],[21],[22] 6.00% [4],[11],[16],[21],[22] 6.00% [4],[11],[16],[21],[22] 6.00% [4],[11],[16],[21],[22] 6.00% [4],[11],[16],[21],[22] 6.00% [4],[11],[16],[21],[22]  
Floor 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [4],[16],[21],[22] 1.00% [4],[16],[21],[22] 1.00% [4],[16],[21],[22] 1.00% [4],[16],[21],[22] 1.00% [4],[16],[21],[22] 1.00% [4],[16],[21],[22]  
Principal Amount $ 175,900,000 [10],[12],[14],[19],[20]             $ 180,900,000 [4],[13],[16],[21],[22]            
Amortized Cost 174,800,000 [10],[14],[19],[20]             179,700,000 [4],[16],[21],[22]            
Fair Value $ 165,500,000 [3],[10],[14],[19],[20]             $ 171,600,000 [4],[5],[16],[21],[22]            
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 7,400,000 [10],[12]             $ 6,400,000 [4],[13]            
Amortized Cost 7,400,000 [10]             6,400,000 [4]            
Fair Value $ 7,000,000.0 [3],[10]             $ 6,000,000.0 [4],[5]            
Investment, Identifier [Axis]: 48Forty Solutions LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 3,200,000 [10],[12],[17]             $ 4,200,000 [13],[18]            
Amortized Cost 3,200,000 [10],[17]             4,200,000 [18]            
Fair Value $ 3,000,000.0 [3],[10],[17]             $ 4,000,000.0 [5],[18]            
Investment, Identifier [Axis]: 5 Arch Income Fund 2 LLC, Financial Services                            
Rate, stated interest rate 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [9],[23],[24],[25],[26],[27] 9.00% [6],[11],[28],[29],[30],[31] 9.00% [6],[11],[28],[29],[30],[31] 9.00% [6],[11],[28],[29],[30],[31] 9.00% [6],[11],[28],[29],[30],[31] 9.00% [6],[11],[28],[29],[30],[31] 9.00% [6],[11],[28],[29],[30],[31]  
Principal Amount $ 79,800,000 [12],[23],[24],[25],[26],[27]             $ 84,200,000 [6],[13],[28],[29],[30],[31]            
Amortized Cost 58,400,000 [23],[24],[25],[26],[27]             61,700,000 [6],[28],[29],[30],[31]            
Fair Value 16,500,000 [3],[23],[24],[25],[26],[27]             19,500,000 [5],[6],[28],[29],[30],[31]            
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Private Equity                            
Fair Value $ 0             $ 0           $ 6,300,000
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Private Equity, Equity Real Estate Investment Trusts (REITs)                            
Principal (in shares) | shares 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [10],[12],[24],[27],[32] 8,516,891 [4],[6],[13],[29],[33] 8,516,891 [4],[6],[13],[29],[33] 8,516,891 [4],[6],[13],[29],[33] 8,516,891 [4],[6],[13],[29],[33] 8,516,891 [4],[6],[13],[29],[33] 8,516,891 [4],[6],[13],[29],[33]  
Amortized Cost $ 14,000,000.0 [10],[24],[27],[32]             $ 14,000,000.0 [4],[6],[29],[33]            
Fair Value 0 [3],[10],[24],[27],[32]             0 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Structure Mezzanine                            
Fair Value $ 48,500,000             $ 52,700,000           58,900,000
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Structure Mezzanine, Equity Real Estate Investment Trusts (REITs)                            
Rate, stated interest rate 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33]  
Rate, PIK 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33]  
Principal Amount $ 60,600,000 [10],[12],[27],[32]             $ 60,600,000 [4],[6],[13],[33]            
Amortized Cost 59,000,000.0 [10],[27],[32]             59,000,000.0 [4],[6],[33]            
Fair Value $ 48,500,000 [3],[10],[27],[32]             $ 52,700,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: 801 5th Ave, Seattle, Structure Mezzanine, Equity Real Estate Investment Trusts (REITs) | Maximum                            
Rate, PIK 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [9],[10],[27],[32] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33] 3.00% [4],[6],[11],[33]  
Investment, Identifier [Axis]: ATX Networks Corp 1                            
Fair Value $ 77,900,000             $ 65,100,000           40,600,000
Investment, Identifier [Axis]: ATX Networks Corp 2                            
Fair Value $ 19,200,000             $ 32,900,000           21,900,000
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods                            
Rate, PIK [4],[6],[11],[33],[34]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Principal Amount [4],[6],[13],[33],[34]               $ 32,900,000            
Amortized Cost [4],[6],[33],[34]               19,500,000            
Fair Value [4],[5],[6],[33],[34]               $ 32,900,000            
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 1                            
Rate, basis spread on variable rate 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [9],[10],[27],[32],[35] 7.50% [4],[6],[11],[33],[34] 7.50% [4],[6],[11],[33],[34] 7.50% [4],[6],[11],[33],[34] 7.50% [4],[6],[11],[33],[34] 7.50% [4],[6],[11],[33],[34] 7.50% [4],[6],[11],[33],[34]  
Floor 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [9],[10],[27],[32],[35] 1.00% [4],[6],[33],[34] 1.00% [4],[6],[33],[34] 1.00% [4],[6],[33],[34] 1.00% [4],[6],[33],[34] 1.00% [4],[6],[33],[34] 1.00% [4],[6],[33],[34]  
Principal Amount $ 77,900,000 [10],[12],[27],[32],[35]             $ 65,100,000 [4],[6],[13],[33],[34]            
Amortized Cost 77,900,000 [10],[27],[32],[35]             65,100,000 [4],[6],[33],[34]            
Fair Value $ 77,900,000 [3],[10],[27],[32],[35]             $ 65,100,000 [4],[5],[6],[33],[34]            
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 2                            
Rate, basis spread on variable rate 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [9],[10],[17],[27],[32],[35] 7.50% [6],[11],[18],[33] 7.50% [6],[11],[18],[33] 7.50% [6],[11],[18],[33] 7.50% [6],[11],[18],[33] 7.50% [6],[11],[18],[33] 7.50% [6],[11],[18],[33]  
Floor 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [9],[10],[17],[27],[32],[35] 1.00% [6],[18],[33] 1.00% [6],[18],[33] 1.00% [6],[18],[33] 1.00% [6],[18],[33] 1.00% [6],[18],[33] 1.00% [6],[18],[33]  
Principal Amount $ 49,300,000 [10],[12],[17],[27],[32],[35]             $ 63,000,000.0 [6],[13],[18],[33]            
Amortized Cost 49,300,000 [10],[17],[27],[32],[35]             63,000,000.0 [6],[18],[33]            
Fair Value $ 49,300,000 [3],[10],[17],[27],[32],[35]             63,000,000.0 [5],[6],[18],[33]            
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 3                            
Rate, PIK [9],[10],[24],[25],[27],[32],[35] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Principal Amount [10],[12],[24],[25],[27],[32],[35] $ 34,500,000                          
Amortized Cost [10],[24],[25],[27],[32],[35] 21,300,000                          
Fair Value [3],[10],[24],[25],[27],[32],[35] $ 19,200,000                          
Investment, Identifier [Axis]: ATX Networks Corp, Capital Goods 3 | Maximum                            
Rate, PIK [9],[10],[24],[25],[27],[32],[35] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Investment, Identifier [Axis]: ATX Networks Corp, Class B-1 Common Stock                            
Fair Value $ 0             $ 2,500,000           5,000,000.0
Investment, Identifier [Axis]: ATX Networks Corp, Class B-1 Common Stock, Capital Goods                            
Principal (in shares) | shares 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [10],[24],[27],[32] 500 [4],[6],[29],[33] 500 [4],[6],[29],[33] 500 [4],[6],[29],[33] 500 [4],[6],[29],[33] 500 [4],[6],[29],[33] 500 [4],[6],[29],[33]  
Amortized Cost $ 5,000,000.0 [10],[24],[27],[32]             $ 5,000,000.0 [4],[6],[29],[33]            
Fair Value 0.0 [3],[10],[24],[27],[32]             2,500,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: ATX Networks Corp, Class B-2 Common Stock                            
Fair Value $ 0             $ 800,000           9,000,000.0
Investment, Identifier [Axis]: ATX Networks Corp, Class B-2 Common Stock, Capital Goods                            
Principal (in shares) | shares 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [10],[24],[27],[32] 900 [4],[6],[29],[33] 900 [4],[6],[29],[33] 900 [4],[6],[29],[33] 900 [4],[6],[29],[33] 900 [4],[6],[29],[33] 900 [4],[6],[29],[33]  
Amortized Cost $ 4,000,000.0 [10],[24],[27],[32]             $ 4,000,000.0 [4],[6],[29],[33]            
Fair Value 0 [3],[10],[24],[27],[32]             800,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: ATX Networks Corp, Common Stock                            
Fair Value $ 0             $ 25,900,000           29,200,000
Investment, Identifier [Axis]: ATX Networks Corp, Common Stock, Capital Goods                            
Principal (in shares) | shares 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [10],[24],[27],[32],[35] 5,578 [4],[6],[29],[33],[34] 5,578 [4],[6],[29],[33],[34] 5,578 [4],[6],[29],[33],[34] 5,578 [4],[6],[29],[33],[34] 5,578 [4],[6],[29],[33],[34] 5,578 [4],[6],[29],[33],[34]  
Amortized Cost $ 9,900,000 [10],[24],[27],[32],[35]             $ 9,900,000 [4],[6],[29],[33],[34]            
Fair Value $ 0 [3],[10],[24],[27],[32],[35]             $ 25,900,000 [4],[5],[6],[29],[33],[34]            
Investment, Identifier [Axis]: Aareon AG, Software & Services                            
Rate, basis spread on variable rate [4],[6],[11]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Floor [4],[6]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount | € [4],[6],[13]                     € 35.9      
Amortized Cost [4],[6]               $ 38,200,000            
Fair Value [4],[5],[6]               $ 38,700,000            
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Common Stock, Energy                            
Principal (in shares) | shares 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [10],[24] 3,055,556 [4],[29] 3,055,556 [4],[29] 3,055,556 [4],[29] 3,055,556 [4],[29] 3,055,556 [4],[29] 3,055,556 [4],[29]  
Amortized Cost $ 200,000 [10],[24]             $ 200,000 [4],[29]            
Fair Value $ 300,000 [3],[10],[24]             $ 600,000 [4],[5],[29]            
Investment, Identifier [Axis]: Abaco Energy Technologies LLC, Preferred Stock, Energy                            
Principal (in shares) | shares 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [10],[24] 12,734,481 [4],[29] 12,734,481 [4],[29] 12,734,481 [4],[29] 12,734,481 [4],[29] 12,734,481 [4],[29] 12,734,481 [4],[29]  
Amortized Cost $ 1,500,000 [10],[24]             $ 1,500,000 [4],[29]            
Fair Value 2,500,000 [3],[10],[24]             4,500,000 [4],[5],[29]            
Investment, Identifier [Axis]: Abacus JV, Private Equity                            
Fair Value $ 46,800,000             $ 48,500,000 [36]           0 [36]
Investment, Identifier [Axis]: Abacus JV, Private Equity, Insurance                            
Principal (in shares) | shares 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [10],[12],[27],[32] 47,045,141 [4],[6],[13],[33] 47,045,141 [4],[6],[13],[33] 47,045,141 [4],[6],[13],[33] 47,045,141 [4],[6],[13],[33] 47,045,141 [4],[6],[13],[33] 47,045,141 [4],[6],[13],[33]  
Amortized Cost $ 46,100,000 [10],[27],[32]             $ 46,100,000 [4],[6],[33]            
Fair Value 46,800,000 [3],[10],[27],[32]             48,500,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Accelerator Investments Aggregator LP, Private Equity                            
Fair Value $ 2,400,000             $ 2,500,000            
Investment, Identifier [Axis]: Accelerator Investments Aggregator LP, Private Equity, Financial Services                            
Principal (in shares) | shares 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [10],[12],[24],[27],[37] 2,778,491 [4],[6],[13],[29],[38] 2,778,491 [4],[6],[13],[29],[38] 2,778,491 [4],[6],[13],[29],[38] 2,778,491 [4],[6],[13],[29],[38] 2,778,491 [4],[6],[13],[29],[38] 2,778,491 [4],[6],[13],[29],[38]  
Amortized Cost $ 3,200,000 [10],[24],[27],[37]             $ 3,200,000 [4],[6],[29],[38]            
Fair Value $ 2,400,000 [3],[10],[24],[27],[37]             2,500,000 [4],[5],[6],[29],[38]            
Investment, Identifier [Axis]: Accelerator Investments Aggregator LP, Private Equity4)                            
Fair Value [39]               $ 2,500,000           0
Investment, Identifier [Axis]: Accuride Corp, Capital Goods                            
Rate, basis spread on variable rate 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [9],[14],[40] 5.25% [11],[16],[41] 5.25% [11],[16],[41] 5.25% [11],[16],[41] 5.25% [11],[16],[41] 5.25% [11],[16],[41] 5.25% [11],[16],[41]  
Rate, PIK 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41]  
Floor 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [9],[14],[40] 1.00% [16],[41] 1.00% [16],[41] 1.00% [16],[41] 1.00% [16],[41] 1.00% [16],[41] 1.00% [16],[41]  
Principal Amount $ 7,500,000 [12],[14],[40]             $ 7,500,000 [13],[16],[41]            
Amortized Cost 7,500,000 [14],[40]             7,500,000 [16],[41]            
Fair Value $ 5,900,000 [3],[14],[40]             $ 6,200,000 [5],[16],[41]            
Investment, Identifier [Axis]: Accuride Corp, Capital Goods | Maximum                            
Rate, PIK 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [9],[14],[40] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41] 1.60% [11],[16],[41]  
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [4],[11],[22],[42] 6.50% [4],[11],[22],[42] 6.50% [4],[11],[22],[42] 6.50% [4],[11],[22],[42] 6.50% [4],[11],[22],[42] 6.50% [4],[11],[22],[42]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4],[22],[42] 1.00% [4],[22],[42] 1.00% [4],[22],[42] 1.00% [4],[22],[42] 1.00% [4],[22],[42] 1.00% [4],[22],[42]  
Principal Amount $ 1,000,000.0 [10],[12]             $ 38,100,000 [4],[13],[22],[42]            
Amortized Cost 1,000,000.0 [10]             36,700,000 [4],[22],[42]            
Fair Value $ 1,000,000.0 [3],[10]             $ 37,500,000 [4],[5],[22],[42]            
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [9],[10],[20],[43] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [9],[10],[20],[43] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 45,800,000 [10],[12],[20],[43]             $ 7,800,000 [4],[13]            
Amortized Cost 44,500,000 [10],[20],[43]             7,800,000 [4]            
Fair Value $ 45,600,000 [3],[10],[20],[43]             $ 7,700,000 [4],[5]            
Investment, Identifier [Axis]: Advanced Dermatology & Cosmetic Surgery, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 2,600,000 [10],[12],[17]             $ 3,600,000 [13],[18]            
Amortized Cost 2,600,000 [10],[17]             3,600,000 [18]            
Fair Value $ 2,600,000 [3],[10],[17]             $ 3,500,000 [5],[18]            
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 1                            
Rate, basis spread on variable rate 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11]  
Rate, PIK 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | kr   kr 933.6 [10],[12],[27]             kr 933.6 [4],[6],[13]          
Amortized Cost $ 106,900,000 [10],[27]             $ 106,700,000 [4],[6]            
Fair Value $ 87,200,000 [3],[10],[27]             $ 91,400,000 [4],[5],[6]            
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 1 | Maximum                            
Rate, PIK 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11]  
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 2                            
Rate, basis spread on variable rate 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [9],[10],[27] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11] 6.10% [4],[6],[11]  
Rate, PIK 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | kr     kr 1,345.8 [10],[12],[27]             kr 1,345.8 [4],[6],[13]        
Amortized Cost $ 10,200,000 [10],[27]             $ 10,200,000 [4],[6]            
Fair Value $ 9,700,000 [3],[10],[27]             $ 9,800,000 [4],[5],[6]            
Investment, Identifier [Axis]: Advania Sverige AB, Software & Services 2 | Maximum                            
Rate, PIK 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [9],[10],[27] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11] 3.30% [4],[6],[11]  
Investment, Identifier [Axis]: Affordable Care Inc 1                            
Fair Value $ 36,000,000.0             $ 35,600,000           53,100,000
Investment, Identifier [Axis]: Affordable Care Inc 2                            
Fair Value $ 10,800,000             $ 7,300,000           0
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38]  
Rate, PIK 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38]  
Floor 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [9],[10],[37] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38]  
Principal Amount $ 1,900,000 [10],[12],[37]             $ 1,900,000 [4],[13],[38]            
Amortized Cost 1,900,000 [10],[37]             1,900,000 [4],[38]            
Fair Value $ 1,900,000 [3],[10],[37]             $ 1,900,000 [4],[5],[38]            
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 1 | Maximum                            
Rate, PIK 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [9],[10],[37] 1.30% [4],[11],[38] 1.30% [4],[11],[38] 1.30% [4],[11],[38] 1.30% [4],[11],[38] 1.30% [4],[11],[38] 1.30% [4],[11],[38]  
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [9],[10],[37],[43] 5.50% [4],[11],[38],[42] 5.50% [4],[11],[38],[42] 5.50% [4],[11],[38],[42] 5.50% [4],[11],[38],[42] 5.50% [4],[11],[38],[42] 5.50% [4],[11],[38],[42]  
Floor 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [9],[10],[37],[43] 0.80% [4],[38],[42] 0.80% [4],[38],[42] 0.80% [4],[38],[42] 0.80% [4],[38],[42] 0.80% [4],[38],[42] 0.80% [4],[38],[42]  
Principal Amount $ 44,900,000 [10],[12],[37],[43]             $ 13,700,000 [4],[13],[38],[42]            
Amortized Cost 44,800,000 [10],[37],[43]             13,600,000 [4],[38],[42]            
Fair Value $ 44,900,000 [3],[10],[37],[43]             $ 13,500,000 [4],[5],[38],[42]            
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [9],[10],[17],[37] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38]  
Rate, PIK [9],[10],[17],[37] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [9],[10],[17],[37] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38] 0.80% [4],[38]  
Principal Amount $ 10,900,000 [10],[12],[17],[37]             $ 28,000,000.0 [4],[13],[38]            
Amortized Cost 10,900,000 [10],[17],[37]             28,000,000.0 [4],[38]            
Fair Value $ 10,900,000 [3],[10],[17],[37]             $ 27,700,000 [4],[5],[38]            
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 3 | Maximum                            
Rate, PIK [9],[10],[17],[37] 1.30% 1.30% 1.30% 1.30% 1.30% 1.30% 1.30%              
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 4                            
Rate, basis spread on variable rate 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [9],[10],[17],[37],[43] 5.50% [11],[18],[38] 5.50% [11],[18],[38] 5.50% [11],[18],[38] 5.50% [11],[18],[38] 5.50% [11],[18],[38] 5.50% [11],[18],[38]  
Rate, PIK [11],[18],[38]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [9],[10],[17],[37],[43] 0.80% [18],[38] 0.80% [18],[38] 0.80% [18],[38] 0.80% [18],[38] 0.80% [18],[38] 0.80% [18],[38]  
Principal Amount $ 11,900,000 [10],[12],[17],[37],[43]             $ 10,900,000 [13],[18],[38]            
Amortized Cost 11,900,000 [10],[17],[37],[43]             10,900,000 [18],[38]            
Fair Value 11,900,000 [3],[10],[17],[37],[43]             $ 10,800,000 [5],[18],[38]            
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 4 | Maximum                            
Rate, PIK [11],[18],[38]               1.30% 1.30% 1.30% 1.30% 1.30% 1.30%  
Investment, Identifier [Axis]: Affordable Care Inc, Health Care Equipment & Services 5                            
Rate, basis spread on variable rate [11],[18],[38]               5.50% 5.50% 5.50% 5.50% 5.50% 5.50%  
Floor [18],[38]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[18],[38]               $ 15,300,000            
Amortized Cost [18],[38]               15,300,000            
Fair Value [5],[18],[38]               15,200,000            
Investment, Identifier [Axis]: Affordable Care Inc, Preferred Stock                            
Fair Value $ 50,100,000             $ 50,000,000.0           49,900,000
Investment, Identifier [Axis]: Affordable Care Inc, Preferred Stock, Health Care Equipment & Services                            
Rate, PIK 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38]  
Principal (in shares) | shares 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [10],[37] 49,073,000 [4],[38] 49,073,000 [4],[38] 49,073,000 [4],[38] 49,073,000 [4],[38] 49,073,000 [4],[38] 49,073,000 [4],[38]  
Amortized Cost $ 48,100,000 [10],[37]             $ 48,100,000 [4],[38]            
Fair Value $ 50,100,000 [3],[10],[37]             $ 50,000,000.0 [4],[5],[38]            
Investment, Identifier [Axis]: Affordable Care Inc, Preferred Stock, Health Care Equipment & Services | Maximum                            
Rate, PIK 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [9],[10],[37] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38] 11.80% [4],[11],[38]  
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 1                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 6,100,000 [10],[12]             $ 4,600,000 [4],[13]            
Amortized Cost 6,000,000.0 [10]             4,500,000 [4]            
Fair Value $ 6,000,000.0 [3],[10]             $ 4,600,000 [4],[5]            
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 2                            
Rate, basis spread on variable rate 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42]  
Floor 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42]  
Principal Amount $ 11,900,000 [12],[43]             $ 11,900,000 [13],[42]            
Amortized Cost 11,700,000 [43]             11,800,000 [42]            
Fair Value $ 11,700,000 [3],[43]             $ 11,800,000 [5],[42]            
Investment, Identifier [Axis]: Alacrity Solutions Group LLC, Insurance 3                            
Rate, basis spread on variable rate 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 4,700,000 [10],[12],[17]             $ 6,100,000 [13],[18]            
Amortized Cost 4,700,000 [10],[17]             6,100,000 [18]            
Fair Value $ 4,600,000 [3],[10],[17]             $ 6,100,000 [5],[18]            
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 1                            
Rate, basis spread on variable rate 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 5.25% [9],[43] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42]  
Floor 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 9,100,000 [12],[43]             $ 31,400,000 [4],[13],[42]            
Amortized Cost 9,000,000.0 [43]             31,300,000 [4],[42]            
Fair Value $ 9,100,000 [3],[43]             $ 31,400,000 [4],[5],[42]            
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 2                            
Rate, basis spread on variable rate 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 22,200,000 [10],[12],[43]             $ 7,600,000 [13],[18]            
Amortized Cost 22,200,000 [10],[43]             7,600,000 [18]            
Fair Value $ 22,200,000 [3],[10],[43]             7,500,000 [5],[18]            
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 3                            
Rate, basis spread on variable rate [9],[10] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Floor [9],[10] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12] $ 400,000                          
Amortized Cost [10] 300,000                          
Fair Value [3],[10] $ 400,000                          
Investment, Identifier [Axis]: Alera Group Intermediate Holdings Inc, Insurance 4                            
Rate, basis spread on variable rate [9],[10],[17] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 7,200,000                          
Amortized Cost [10],[17] 7,200,000                          
Fair Value [3],[10],[17] 7,300,000                          
Investment, Identifier [Axis]: Altavair AirFinance, Private Equity                            
Fair Value $ 134,700,000             $ 133,900,000 [39]           0 [39]
Investment, Identifier [Axis]: Altavair AirFinance, Private Equity, Capital Goods                            
Principal (in shares) | shares 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [10],[12],[27],[37] 128,878,615 [4],[6],[13],[38] 128,878,615 [4],[6],[13],[38] 128,878,615 [4],[6],[13],[38] 128,878,615 [4],[6],[13],[38] 128,878,615 [4],[6],[13],[38] 128,878,615 [4],[6],[13],[38]  
Amortized Cost $ 129,800,000 [10],[27],[37]             $ 129,900,000 [4],[6],[38]            
Fair Value $ 134,700,000 [3],[10],[27],[37]             $ 133,900,000 [4],[5],[6],[38]            
Investment, Identifier [Axis]: Altitude II IRL WH Borrower DAC, Revolver, Capital Goods 1                            
Rate, basis spread on variable rate 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount $ 4,900,000 [10],[12],[27]             $ 4,900,000 [4],[6],[13]            
Amortized Cost 4,900,000 [10],[27]             4,900,000 [4],[6]            
Fair Value $ 4,900,000 [3],[10],[27]             $ 4,800,000 [4],[5],[6]            
Investment, Identifier [Axis]: Altitude II IRL WH Borrower DAC, Revolver, Capital Goods 2                            
Rate, basis spread on variable rate 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [9],[10],[17],[27] 10.00% [6],[11],[18] 10.00% [6],[11],[18] 10.00% [6],[11],[18] 10.00% [6],[11],[18] 10.00% [6],[11],[18] 10.00% [6],[11],[18]  
Floor 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount $ 4,900,000 [10],[12],[17],[27]             $ 4,900,000 [6],[13],[18]            
Amortized Cost 4,900,000 [10],[17],[27]             4,900,000 [6],[18]            
Fair Value $ 4,900,000 [3],[10],[17],[27]             $ 4,800,000 [5],[6],[18]            
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 4,400,000 [10],[12]             $ 4,400,000 [4],[13]            
Amortized Cost 4,400,000 [10]             4,400,000 [4]            
Fair Value $ 4,200,000 [3],[10]             $ 4,200,000 [4],[5]            
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44]  
Floor 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44]  
Principal Amount $ 91,200,000 [10],[12],[15]             $ 91,400,000 [4],[13],[44]            
Amortized Cost 90,800,000 [10],[15]             91,000,000.0 [4],[44]            
Fair Value $ 87,900,000 [3],[10],[15]             $ 88,000,000.0 [4],[5],[44]            
Investment, Identifier [Axis]: American Vision Partners, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 3,400,000 [10],[12],[17]             $ 3,400,000 [13],[18]            
Amortized Cost 3,400,000 [10],[17]             3,400,000 [18]            
Fair Value $ 3,300,000 [3],[10],[17]             $ 3,300,000 [5],[18]            
Investment, Identifier [Axis]: American Vision Partners, Private Equity, Health Care Equipment & Services                            
Principal (in shares) | shares 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [10],[24] 2,655,491 [4],[29] 2,655,491 [4],[29] 2,655,491 [4],[29] 2,655,491 [4],[29] 2,655,491 [4],[29] 2,655,491 [4],[29]  
Amortized Cost $ 2,700,000 [10],[24]             $ 2,700,000 [4],[29]            
Fair Value $ 1,700,000 [3],[10],[24]             $ 1,800,000 [4],[5],[29]            
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 45,400,000 [10],[12]             $ 68,300,000 [4],[13]            
Amortized Cost 45,100,000 [10]             68,000,000.0 [4]            
Fair Value $ 45,400,000 [3],[10]             $ 67,800,000 [4],[5]            
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 22,700,000 [10],[12]             $ 8,400,000 [13],[18]            
Amortized Cost 22,700,000 [10]             8,400,000 [18]            
Fair Value $ 22,700,000 [3],[10]             $ 8,300,000 [5],[18]            
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate [9],[17] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 8,400,000                          
Amortized Cost [17] 8,400,000                          
Fair Value [3],[17] $ 8,400,000                          
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Preferred Stock, Health Care Equipment & Services                            
Rate, PIK 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11]  
Principal (in shares) | shares 12,702,290 [10] 12,702,290 [10] 12,702,290 [10] 12,702,290 [10] 12,702,290 [10] 12,702,290 [10] 12,702,290 [10] 12,702,290 [4] 12,702,290 [4] 12,702,290 [4] 12,702,290 [4] 12,702,290 [4] 12,702,290 [4]  
Amortized Cost $ 12,300,000 [10]             $ 12,300,000 [4]            
Fair Value $ 8,900,000 [3],[10]             $ 8,800,000 [4],[5]            
Investment, Identifier [Axis]: Amerivet Partners Management Inc, Preferred Stock, Health Care Equipment & Services | Maximum                            
Rate, PIK 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [9],[10] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11] 11.50% [4],[11]  
Investment, Identifier [Axis]: Amtek Global Technology Pte Ltd, Common Stock                            
Fair Value               $ 0           0
Investment, Identifier [Axis]: Amtek Global Technology Pte Ltd, Ordinary Shares                            
Fair Value               0           0
Investment, Identifier [Axis]: Amtek Global Technology Pte Ltd, Private Equity                            
Fair Value               $ 0           0
Investment, Identifier [Axis]: Angelica Corp, Health Care Equipment & Services                            
Rate, PIK [11],[29],[30],[45]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Principal Amount [13],[29],[30],[45]               $ 65,100,000            
Amortized Cost [29],[30],[45]               2,700,000            
Fair Value [5],[29],[30],[45]               $ 700,000            
Investment, Identifier [Axis]: Angelica Corp, Health Care Equipment & Services | Maximum                            
Rate, PIK [11],[29],[30],[45]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: Apex Group Limited, Financial Services                            
Rate, basis spread on variable rate [4],[6],[11]               6.75% 6.75% 6.75% 6.75% 6.75% 6.75%  
Floor [4],[6]               0.50% 0.50% 0.50% 0.50% 0.50% 0.50%  
Principal Amount [4],[6],[13]               $ 55,000,000.0            
Amortized Cost [4],[6]               54,100,000            
Fair Value [4],[5],[6]               $ 53,900,000            
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 1                            
Rate, basis spread on variable rate 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [9],[27],[40],[43] 3.75% [6],[11],[41],[42] 3.75% [6],[11],[41],[42] 3.75% [6],[11],[41],[42] 3.75% [6],[11],[41],[42] 3.75% [6],[11],[41],[42] 3.75% [6],[11],[41],[42]  
Floor 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42]  
Principal Amount $ 2,500,000 [12],[27],[40],[43]             $ 2,500,000 [6],[13],[41],[42]            
Amortized Cost 2,400,000 [27],[40],[43]             2,400,000 [6],[41],[42]            
Fair Value $ 2,500,000 [3],[27],[40],[43]             $ 2,500,000 [5],[6],[41],[42]            
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 2                            
Rate, basis spread on variable rate 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [9],[10],[27],[40] 4.00% [4],[6],[11],[41] 4.00% [4],[6],[11],[41] 4.00% [4],[6],[11],[41] 4.00% [4],[6],[11],[41] 4.00% [4],[6],[11],[41] 4.00% [4],[6],[11],[41]  
Floor 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41]  
Principal Amount | €       € 2.0 [10],[12],[27],[40]             € 2.0 [4],[6],[13],[41]      
Amortized Cost $ 2,300,000 [10],[27],[40]             $ 2,300,000 [4],[6],[41]            
Fair Value $ 2,200,000 [3],[10],[27],[40]             $ 2,200,000 [4],[5],[6],[41]            
Investment, Identifier [Axis]: Apex Group Limited, Financial Services 3                            
Rate, basis spread on variable rate [9],[10],[27] 6.75% 6.75% 6.75% 6.75% 6.75% 6.75% 6.75%              
Floor [9],[10],[27] 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% 0.50%              
Principal Amount [10],[12],[27] $ 55,000,000.0                          
Amortized Cost [10],[27] 54,100,000                          
Fair Value [3],[10],[27] $ 54,600,000                          
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 1,900,000 [10],[12]             $ 400,000 [4],[13]            
Amortized Cost 1,900,000 [10]             400,000 [4]            
Fair Value $ 1,900,000 [3],[10]             $ 400,000 [4],[5]            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 5.00% [9],[10] 5.00% [9],[10] 5.00% [9],[10] 5.00% [9],[10] 5.00% [9],[10] 5.00% [9],[10] 5.00% [9],[10] 5.00% [4],[11] 5.00% [4],[11] 5.00% [4],[11] 5.00% [4],[11] 5.00% [4],[11] 5.00% [4],[11]  
Rate, PIK 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 86,300,000 [10],[12]             $ 80,700,000 [4],[13]            
Amortized Cost 85,400,000 [10]             79,800,000 [4]            
Fair Value $ 87,100,000 [3],[10]             $ 79,700,000 [4],[5]            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 2 | Maximum                            
Rate, PIK 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11]  
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount       € 3.2 [10],[12],[17]       $ 4,700,000 [13],[18]            
Amortized Cost $ 3,200,000 [10],[17]             4,700,000 [18]            
Fair Value $ 3,200,000 [3],[10],[17]             $ 4,700,000 [5],[18]            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 4                            
Rate, basis spread on variable rate 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [9],[10],[17] 5.00% [11],[18] 5.00% [11],[18] 5.00% [11],[18] 5.00% [11],[18] 5.00% [11],[18] 5.00% [11],[18]  
Rate, PIK 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 7,000,000.0 [10],[12],[17]             $ 12,000,000.0 [13],[18]            
Amortized Cost 7,000,000.0 [10],[17]             12,000,000.0 [18]            
Fair Value $ 7,000,000.0 [3],[10],[17]             $ 11,800,000 [5],[18]            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 4 | Maximum                            
Rate, PIK [11],[18]               2.00% 2.00% 2.00% 2.00% 2.00% 2.00%  
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 5                            
Rate, PIK 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11]  
Principal Amount $ 20,400,000 [10],[12]             $ 13,300,000 [4],[13]            
Amortized Cost 20,100,000 [10]             13,000,000.0 [4]            
Fair Value $ 19,900,000 [3],[10]             $ 13,000,000.0 [4],[5]            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 5 | Maximum                            
Rate, PIK 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [9],[10] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11] 14.30% [4],[11]  
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 6                            
Rate, PIK [11],[18]               14.30% 14.30% 14.30% 14.30% 14.30% 14.30%  
Principal Amount [13],[18]               $ 6,500,000            
Amortized Cost [18]               6,500,000            
Fair Value [5],[18]               $ 6,300,000            
Investment, Identifier [Axis]: Apex Service Partners LLC, Commercial & Professional Services 6 | Maximum                            
Rate, PIK [11],[18]               14.30% 14.30% 14.30% 14.30% 14.30% 14.30%  
Investment, Identifier [Axis]: Arcfield Acquisition Corp, Capital Goods 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [9],[10],[15],[19],[20] 6.25% [4],[11],[21],[22] 6.25% [4],[11],[21],[22] 6.25% [4],[11],[21],[22] 6.25% [4],[11],[21],[22] 6.25% [4],[11],[21],[22] 6.25% [4],[11],[21],[22]  
Floor 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [9],[10],[15],[19],[20] 0.80% [4],[21],[22] 0.80% [4],[21],[22] 0.80% [4],[21],[22] 0.80% [4],[21],[22] 0.80% [4],[21],[22] 0.80% [4],[21],[22]  
Principal Amount $ 84,800,000 [10],[12],[15],[19],[20]             $ 85,000,000.0 [4],[13],[21],[22]            
Amortized Cost 84,400,000 [10],[15],[19],[20]             84,600,000 [4],[21],[22]            
Fair Value $ 86,100,000 [3],[10],[15],[19],[20]             $ 85,000,000.0 [4],[5],[21],[22]            
Investment, Identifier [Axis]: Arcfield Acquisition Corp, Capital Goods 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 10,600,000 [12],[17]             $ 10,600,000 [13],[18]            
Amortized Cost 10,600,000 [17]             10,600,000 [18]            
Fair Value $ 10,600,000 [3],[17]             $ 10,600,000 [5],[18]            
Investment, Identifier [Axis]: Arcos LLC/VA, Preferred Stock, Software & Services                            
Variable rate, PIK 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal (in shares) | shares 15,000,000 [10] 15,000,000 [10] 15,000,000 [10] 15,000,000 [10] 15,000,000 [10] 15,000,000 [10] 15,000,000 [10] 15,000,000 [4] 15,000,000 [4] 15,000,000 [4] 15,000,000 [4] 15,000,000 [4] 15,000,000 [4]  
Amortized Cost $ 14,100,000 [10]             $ 14,100,000 [4]            
Fair Value $ 12,300,000 [3],[10]             $ 12,500,000 [4],[5]            
Investment, Identifier [Axis]: Arcos LLC/VA, Preferred Stock, Software & Services | Maximum                            
Variable rate, PIK 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [9],[10] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11] 9.50% [4],[11]  
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services 1                            
Rate, basis spread on variable rate 3.00% [9],[43] 3.00% [9],[43] 3.00% [9],[43] 3.00% [9],[43] 3.00% [9],[43] 3.00% [9],[43] 3.00% [9],[43] 3.00% [11],[42] 3.00% [11],[42] 3.00% [11],[42] 3.00% [11],[42] 3.00% [11],[42] 3.00% [11],[42]  
Rate, PIK 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42]  
Floor 1.00% [9],[43] 1.00% [9],[43] 1.00% [9],[43] 1.00% [9],[43] 1.00% [9],[43] 1.00% [9],[43] 1.00% [9],[43] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42]  
Principal Amount $ 12,600,000 [12],[43]             $ 12,500,000 [13],[42]            
Amortized Cost 12,400,000 [43]             12,300,000 [42]            
Fair Value $ 11,200,000 [3],[43]             $ 11,200,000 [5],[42]            
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services 1 | Maximum                            
Rate, PIK 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [9],[43] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42] 3.30% [11],[42]  
Investment, Identifier [Axis]: Arcos LLC/VA, Software & Services 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 4,500,000 [12],[17]             $ 4,500,000 [13],[18]            
Amortized Cost 4,500,000 [17]             4,500,000 [18]            
Fair Value $ 4,000,000.0 [3],[17]             $ 4,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance                            
Rate, basis spread on variable rate [4],[6],[11],[41]               11.50% 11.50% 11.50% 11.50% 11.50% 11.50%  
Rate, PIK [4],[6],[11],[41]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount [4],[6],[13],[41]               $ 1,000,000.0            
Amortized Cost [4],[6],[41]               1,000,000.0            
Fair Value [4],[5],[6],[41]               $ 1,000,000.0            
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance | Maximum                            
Rate, PIK [4],[6],[11],[41]               12.80% 12.80% 12.80% 12.80% 12.80% 12.80%  
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 1                            
Rate, basis spread on variable rate [4],[6],[11]               7.25% 7.25% 7.25% 7.25% 7.25% 7.25%  
Floor [4],[6]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount | £ [4],[6],[13]                       £ 0.8    
Amortized Cost [4],[6]               $ 1,000,000.0            
Fair Value [4],[5],[6]               $ 1,000,000.0            
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 2                            
Rate, basis spread on variable rate [4],[6],[11]               7.25% 7.25% 7.25% 7.25% 7.25% 7.25%  
Floor [4],[6]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount | € [4],[6],[13]                     € 19.0      
Amortized Cost [4],[6]               $ 19,300,000            
Fair Value [4],[5],[6]               $ 20,900,000            
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 3                            
Rate, basis spread on variable rate [4],[6],[11]               6.75% 6.75% 6.75% 6.75% 6.75% 6.75%  
Floor [4],[6]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [4],[6],[13]               $ 9,900,000            
Amortized Cost [4],[6]               9,400,000            
Fair Value [4],[5],[6]               $ 9,800,000            
Investment, Identifier [Axis]: Ardonagh Group Ltd, Insurance 4                            
Rate, basis spread on variable rate [6],[11],[18]               6.75% 6.75% 6.75% 6.75% 6.75% 6.75%  
Floor [6],[18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [6],[13],[18]               $ 9,900,000            
Amortized Cost [6],[18]               9,900,000            
Fair Value [5],[6],[18]               $ 9,800,000            
Investment, Identifier [Axis]: Ardonagh Group Ltd/The, Insurance                            
Rate, basis spread on variable rate [9],[17],[27] 4.75% 4.75% 4.75% 4.75% 4.75% 4.75% 4.75%              
Floor [9],[17],[27] 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% 0.50%              
Principal Amount [12],[17],[27] $ 3,400,000                          
Amortized Cost [17],[27] 3,400,000                          
Fair Value [3],[17],[27] $ 3,400,000                          
Investment, Identifier [Axis]: Arena Energy LP, Warrants, Energy                            
Principal (in shares) | shares 68,186,525 [10] 68,186,525 [10] 68,186,525 [10] 68,186,525 [10] 68,186,525 [10] 68,186,525 [10] 68,186,525 [10] 68,186,525 [4] 68,186,525 [4] 68,186,525 [4] 68,186,525 [4] 68,186,525 [4] 68,186,525 [4]  
Amortized Cost $ 400,000 [10]             $ 400,000 [4]            
Fair Value $ 200,000 [3],[10]             $ 300,000 [4],[5]            
Investment, Identifier [Axis]: Ascent Resources Utica Holdings LLC / ARU Finance Corp, Common Stock, Energy                            
Principal (in shares) | shares 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [24],[46],[47] 10,193 [29],[48] 10,193 [29],[48] 10,193 [29],[48] 10,193 [29],[48] 10,193 [29],[48] 10,193 [29],[48]  
Amortized Cost $ 9,700,000 [24],[46],[47]             $ 9,700,000 [29],[48]            
Fair Value $ 2,500,000 [3],[24],[46],[47]             $ 2,700,000 [5],[29],[48]            
Investment, Identifier [Axis]: Ascent Resources Utica Holdings LLC / ARU Finance Corp, Energy                            
Principal (in shares) | shares 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [24],[46],[47] 866,071 [29],[48] 866,071 [29],[48] 866,071 [29],[48] 866,071 [29],[48] 866,071 [29],[48] 866,071 [29],[48]  
Amortized Cost $ 18,900,000 [24],[46],[47]             $ 19,400,000 [29],[48]            
Fair Value 21,200,000 [3],[24],[46],[47]             22,900,000 [5],[29],[48]            
Investment, Identifier [Axis]: Australis Maritime II, Private Equity                            
Fair Value $ 13,400,000             $ 12,200,000           0
Investment, Identifier [Axis]: Australis Maritime II, Private Equity, Transportation                            
Principal (in shares) | shares 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 12,001,421 [10],[12],[24],[27],[32] 10,877,686 [4],[6],[13],[29],[33] 10,877,686 [4],[6],[13],[29],[33] 10,877,686 [4],[6],[13],[29],[33] 10,877,686 [4],[6],[13],[29],[33] 10,877,686 [4],[6],[13],[29],[33] 10,877,686 [4],[6],[13],[29],[33]  
Amortized Cost $ 12,000,000.0 [10],[24],[27],[32]             $ 10,900,000 [4],[6],[29],[33]            
Fair Value 13,400,000 [3],[10],[24],[27],[32]             12,200,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Australis Maritime, Common Stock                            
Fair Value $ 27,800,000             $ 35,800,000 [36]           0 [36]
Investment, Identifier [Axis]: Australis Maritime, Common Stock, Transportation                            
Principal (in shares) | shares 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 29,131,438 [10],[12],[27],[32] 35,450,153 [4],[6],[13],[33] 35,450,153 [4],[6],[13],[33] 35,450,153 [4],[6],[13],[33] 35,450,153 [4],[6],[13],[33] 35,450,153 [4],[6],[13],[33] 35,450,153 [4],[6],[13],[33]  
Amortized Cost $ 29,100,000 [10],[27],[32]             $ 35,400,000 [4],[6],[33]            
Fair Value 27,800,000 [3],[10],[27],[32]             35,800,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Avenue One PropCo, Private Equity                            
Fair Value               38,800,000           31,000,000.0
Investment, Identifier [Axis]: Avenue One PropCo, Private Equity 1                            
Fair Value 0             38,800,000            
Investment, Identifier [Axis]: Avenue One PropCo, Private Equity 2                            
Fair Value $ 10,900,000             $ 0            
Investment, Identifier [Axis]: Avenue One PropCo, Private Equity, Equity Real Estate Investment Trusts (REITs)                            
Principal (in shares) | shares 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 10,195,937 [10],[12],[24],[27],[32] 37,850,611 [4],[6],[13],[29],[33] 37,850,611 [4],[6],[13],[29],[33] 37,850,611 [4],[6],[13],[29],[33] 37,850,611 [4],[6],[13],[29],[33] 37,850,611 [4],[6],[13],[29],[33] 37,850,611 [4],[6],[13],[29],[33]  
Amortized Cost $ 10,200,000 [10],[24],[27],[32]             $ 37,900,000 [4],[6],[29],[33]            
Fair Value 10,900,000 [3],[10],[24],[27],[32]             38,800,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Avenue One PropCo, Term Loan                            
Fair Value $ 30,600,000             0            
Investment, Identifier [Axis]: Avenue One PropCo, Term Loan, Equity Real Estate Investment Trusts (REITs)                            
Rate, PIK [9],[10],[27],[32] 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00%              
Principal Amount [10],[12],[27],[32] $ 30,600,000                          
Amortized Cost [10],[27],[32] 30,600,000                          
Fair Value [3],[10],[27],[32] $ 30,600,000                          
Investment, Identifier [Axis]: Avenue One PropCo, Term Loan, Equity Real Estate Investment Trusts (REITs) | Maximum                            
Rate, PIK [9],[10],[27],[32] 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00%              
Investment, Identifier [Axis]: Avida Holding AB, Common Stock                            
Fair Value $ 40,500,000             $ 42,900,000           42,600,000
Investment, Identifier [Axis]: Avida Holding AB, Common Stock, Financial Services                            
Principal (in shares) | shares 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [10],[12],[24],[27],[32] 444,962,569 [4],[6],[13],[29],[33] 444,962,569 [4],[6],[13],[29],[33] 444,962,569 [4],[6],[13],[29],[33] 444,962,569 [4],[6],[13],[29],[33] 444,962,569 [4],[6],[13],[29],[33] 444,962,569 [4],[6],[13],[29],[33]  
Amortized Cost $ 49,900,000 [10],[24],[27],[32]             $ 49,900,000 [4],[6],[29],[33]            
Fair Value 40,500,000 [3],[10],[24],[27],[32]             42,900,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Avida Holding AB, Subordinated Bond                            
Fair Value $ 1,400,000             $ 1,500,000           0
Investment, Identifier [Axis]: Avida Holding AB, Subordinated Bond, Financial Services                            
Rate, basis spread on variable rate 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [9],[10],[27],[32] 9.25% [4],[6],[11],[33] 9.25% [4],[6],[11],[33] 9.25% [4],[6],[11],[33] 9.25% [4],[6],[11],[33] 9.25% [4],[6],[11],[33] 9.25% [4],[6],[11],[33]  
Floor 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [9],[10],[27],[32] 0.00% [4],[6],[33] 0.00% [4],[6],[33] 0.00% [4],[6],[33] 0.00% [4],[6],[33] 0.00% [4],[6],[33] 0.00% [4],[6],[33]  
Principal Amount | kr   kr 15.0 [10],[12],[27],[32]             kr 15.0 [4],[6],[13],[33]          
Amortized Cost $ 1,300,000 [10],[27],[32]             $ 1,300,000 [4],[6],[33]            
Fair Value $ 1,400,000 [3],[10],[27],[32]             $ 1,500,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: BDO USA PA, Commercial & Professional Services                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4]  
Principal Amount $ 28,300,000 [10],[12]             $ 28,400,000 [4],[13]            
Amortized Cost 27,800,000 [10]             27,800,000 [4]            
Fair Value $ 28,500,000 [3],[10]             $ 28,100,000 [4],[5]            
Investment, Identifier [Axis]: BGB Group LLC, Media & Entertainment 1                            
Rate, basis spread on variable rate 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [9],[14],[15],[19],[20],[43] 5.75% [11],[16],[21],[22],[42],[44] 5.75% [11],[16],[21],[22],[42],[44] 5.75% [11],[16],[21],[22],[42],[44] 5.75% [11],[16],[21],[22],[42],[44] 5.75% [11],[16],[21],[22],[42],[44] 5.75% [11],[16],[21],[22],[42],[44]  
Floor 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [9],[14],[15],[19],[20],[43] 1.00% [16],[21],[22],[42],[44] 1.00% [16],[21],[22],[42],[44] 1.00% [16],[21],[22],[42],[44] 1.00% [16],[21],[22],[42],[44] 1.00% [16],[21],[22],[42],[44] 1.00% [16],[21],[22],[42],[44]  
Principal Amount $ 109,700,000 [12],[14],[15],[19],[20],[43]             $ 110,000,000.0 [13],[16],[21],[22],[42],[44]            
Amortized Cost 109,000,000.0 [14],[15],[19],[20],[43]             109,200,000 [16],[21],[22],[42],[44]            
Fair Value $ 109,700,000 [3],[14],[15],[19],[20],[43]             $ 107,500,000 [5],[16],[21],[22],[42],[44]            
Investment, Identifier [Axis]: BGB Group LLC, Media & Entertainment 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 19,900,000 [12],[17]             $ 19,900,000 [13],[18]            
Amortized Cost 19,900,000 [17]             19,900,000 [18]            
Fair Value $ 19,900,000 [3],[17]             $ 19,500,000 [5],[18]            
Investment, Identifier [Axis]: Bankers Healthcare Group LLC, Term Loan, Financial Services                            
Rate, stated interest rate 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [9],[10],[27] 22.00% [4],[6],[11] 22.00% [4],[6],[11] 22.00% [4],[6],[11] 22.00% [4],[6],[11] 22.00% [4],[6],[11] 22.00% [4],[6],[11]  
Principal Amount $ 8,800,000 [10],[12],[27]             $ 9,000,000.0 [4],[6],[13]            
Amortized Cost 8,800,000 [10],[27]             9,000,000.0 [4],[6]            
Fair Value $ 8,800,000 [3],[10],[27]             $ 9,000,000.0 [4],[5],[6]            
Investment, Identifier [Axis]: Barbri Inc, Consumer Services                            
Rate, basis spread on variable rate 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [9],[10],[14],[19],[20],[43] 5.75% [4],[11],[16],[21],[22],[42] 5.75% [4],[11],[16],[21],[22],[42] 5.75% [4],[11],[16],[21],[22],[42] 5.75% [4],[11],[16],[21],[22],[42] 5.75% [4],[11],[16],[21],[22],[42] 5.75% [4],[11],[16],[21],[22],[42]  
Floor 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [9],[10],[14],[19],[20],[43] 0.80% [4],[16],[21],[22],[42] 0.80% [4],[16],[21],[22],[42] 0.80% [4],[16],[21],[22],[42] 0.80% [4],[16],[21],[22],[42] 0.80% [4],[16],[21],[22],[42] 0.80% [4],[16],[21],[22],[42]  
Principal Amount $ 130,100,000 [10],[12],[14],[19],[20],[43]             $ 130,500,000 [4],[13],[16],[21],[22],[42]            
Amortized Cost 126,800,000 [10],[14],[19],[20],[43]             127,000,000.0 [4],[16],[21],[22],[42]            
Fair Value $ 127,100,000 [3],[10],[14],[19],[20],[43]             $ 126,900,000 [4],[5],[16],[21],[22],[42]            
Investment, Identifier [Axis]: Bausch Health Cos Inc, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate [4],[6],[11]               6.65% 6.65% 6.65% 6.65% 6.65% 6.65%  
Floor [4],[6]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[6],[13]               $ 70,000,000.0            
Amortized Cost [4],[6]               70,000,000.0            
Fair Value [4],[5],[6]               $ 70,000,000.0            
Investment, Identifier [Axis]: Bausch Health Cos Inc, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [9],[10],[17],[27] 6.65% [6],[11],[18] 6.65% [6],[11],[18] 6.65% [6],[11],[18] 6.65% [6],[11],[18] 6.65% [6],[11],[18] 6.65% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 55,000,000.0 [10],[12],[17],[27]             $ 50,000,000.0 [6],[13],[18]            
Amortized Cost 55,000,000.0 [10],[17],[27]             50,000,000.0 [6],[18]            
Fair Value $ 55,000,000.0 [3],[10],[17],[27]             50,000,000.0 [5],[6],[18]            
Investment, Identifier [Axis]: Bausch Health Cos Inc, Revolver, Pharmaceuticals, Biotechnology & Life Sciences1                            
Rate, basis spread on variable rate [9],[10],[27] 6.65% 6.65% 6.65% 6.65% 6.65% 6.65% 6.65%              
Floor [9],[10],[27] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[27] $ 65,000,000.0                          
Amortized Cost [10],[27] 65,000,000.0                          
Fair Value [3],[10],[27] 65,000,000.0                          
Investment, Identifier [Axis]: Belk Inc 1                            
Fair Value 14,300,000             13,200,000           8,800,000
Investment, Identifier [Axis]: Belk Inc 2                            
Fair Value 20,200,000             20,000,000.0           19,400,000
Investment, Identifier [Axis]: Belk Inc 3                            
Fair Value 0             0           3,300,000
Investment, Identifier [Axis]: Belk Inc, Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: Belk Inc, Common Stock, Consumer Discretionary Distribution & Retail                            
Principal (in shares) | shares 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [10],[24],[37] 94,950 [4],[29],[38] 94,950 [4],[29],[38] 94,950 [4],[29],[38] 94,950 [4],[29],[38] 94,950 [4],[29],[38] 94,950 [4],[29],[38]  
Amortized Cost $ 0 [10],[24],[37]             $ 0 [4],[29],[38]            
Fair Value $ 0 [3],[10],[24],[37]             $ 0 [4],[5],[29],[38]            
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail                            
Rate, PIK [4],[11],[29],[30],[38]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Principal Amount [4],[13],[29],[30],[38]               $ 31,200,000            
Amortized Cost [4],[29],[30],[38]               4,200,000            
Fair Value [4],[5],[29],[30],[38]               $ 0            
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail | Maximum                            
Rate, PIK [4],[11],[29],[30],[38]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [9],[10],[37],[40] 6.50% [4],[11],[38],[41] 6.50% [4],[11],[38],[41] 6.50% [4],[11],[38],[41] 6.50% [4],[11],[38],[41] 6.50% [4],[11],[38],[41] 6.50% [4],[11],[38],[41]  
Floor 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [9],[10],[37],[40] 2.00% [4],[38],[41] 2.00% [4],[38],[41] 2.00% [4],[38],[41] 2.00% [4],[38],[41] 2.00% [4],[38],[41] 2.00% [4],[38],[41]  
Principal Amount $ 21,900,000 [10],[12],[37],[40]             $ 21,900,000 [4],[13],[38],[41]            
Amortized Cost 21,800,000 [10],[37],[40]             21,800,000 [4],[38],[41]            
Fair Value $ 20,200,000 [3],[10],[37],[40]             $ 20,000,000.0 [4],[5],[38],[41]            
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 2                            
Rate, basis spread on variable rate [9],[10],[24],[25],[37],[40] 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%              
Rate, stated interest rate [4],[11],[29],[30],[38],[41]               5.00% 5.00% 5.00% 5.00% 5.00% 5.00%  
Rate, PIK 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41]  
Floor [4],[29],[30],[38],[41]                
Principal Amount $ 70,500,000 [10],[12],[24],[25],[37],[40]             $ 70,900,000 [4],[13],[29],[30],[38],[41]            
Amortized Cost 33,800,000 [10],[24],[25],[37],[40]             35,600,000 [4],[29],[30],[38],[41]            
Fair Value $ 14,300,000 [3],[10],[24],[25],[37],[40]             $ 13,200,000 [4],[5],[29],[30],[38],[41]            
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 2 | Maximum                            
Rate, PIK 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [9],[10],[24],[25],[37],[40] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41] 8.00% [4],[11],[29],[30],[38],[41]  
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 3                            
Rate, PIK [9],[10],[24],[25],[37] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Principal Amount [10],[12],[24],[25],[37] $ 32,000,000.0                          
Amortized Cost [10],[24],[25],[37] 4,200,000                          
Fair Value [3],[10],[24],[25],[37] $ 0                          
Investment, Identifier [Axis]: Belk Inc, Consumer Discretionary Distribution & Retail 3 | Maximum                            
Rate, PIK [9],[10],[24],[25],[37] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Investment, Identifier [Axis]: Bloom Fresh International Limited, Food, Beverage & Tobacco                            
Rate, basis spread on variable rate 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 7.4 [10],[12],[27]             € 7.4 [4],[6],[13]      
Amortized Cost $ 7,900,000 [10],[27]             $ 7,900,000 [4],[6]            
Fair Value 7,900,000 [3],[10],[27]             8,000,000.0 [4],[5],[6]            
Investment, Identifier [Axis]: Borden (New Dairy Opco), Common Stock                            
Fair Value               11,200,000           4,800,000
Investment, Identifier [Axis]: Borden (New Dairy Opco), Common Stock 1                            
Fair Value [49] 0             11,200,000            
Investment, Identifier [Axis]: Borden (New Dairy Opco), Common Stock 2                            
Fair Value [50] $ 11,200,000             $ 0            
Investment, Identifier [Axis]: Borden (New Dairy Opco), Common Stock, Food, Beverage & Tobacco                            
Principal (in shares) | shares 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 5,179,936 [24],[32],[46],[51] 6,044,502 [29],[38],[45],[52] 6,044,502 [29],[38],[45],[52] 6,044,502 [29],[38],[45],[52] 6,044,502 [29],[38],[45],[52] 6,044,502 [29],[38],[45],[52] 6,044,502 [29],[38],[45],[52]  
Amortized Cost $ 4,200,000 [24],[32],[46],[51]             $ 4,900,000 [29],[38],[45],[52]            
Fair Value $ 11,200,000 [3],[24],[32],[46],[51]             $ 11,200,000 [4],[5],[29],[38],[45],[52]            
Investment, Identifier [Axis]: Bowery Farming Inc, Common Stock, Food, Beverage & Tobacco                            
Principal (in shares) | shares 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [10],[24] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29]  
Amortized Cost $ 10,000,000.0 [10],[24]             $ 10,000,000.0 [4],[29]            
Fair Value $ 2,800,000 [3],[10],[24]             $ 3,100,000 [4],[5],[29]            
Investment, Identifier [Axis]: Bowery Farming Inc, Food, Beverage & Tobacco                            
Variable rate, PIK 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [9],[10],[24],[25] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30]  
Floor 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30]  
Principal Amount $ 70,200,000 [10],[12],[24],[25]             $ 67,500,000 [4],[13],[29],[30]            
Amortized Cost 61,700,000 [10],[24],[25]             61,700,000 [4],[29],[30]            
Fair Value $ 35,100,000 [3],[10],[24],[25]             $ 35,400,000 [4],[5],[29],[30]            
Investment, Identifier [Axis]: Bowery Farming Inc, Food, Beverage & Tobacco | Maximum                            
Rate, PIK [9],[10],[24],[25] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Variable rate, PIK [4],[11],[29],[30]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: Bowery Farming Inc, Warrants, Food, Beverage & Tobacco 1                            
Principal (in shares) | shares 161,828 [10],[24] 161,828 [10],[24] 161,828 [10],[24] 161,828 [10],[24] 161,828 [10],[24] 161,828 [10],[24] 161,828 [10],[24] 161,828 [4],[29] 161,828 [4],[29] 161,828 [4],[29] 161,828 [4],[29] 161,828 [4],[29] 161,828 [4],[29]  
Amortized Cost $ 0.0 [10],[24]             $ 0 [4],[29]            
Fair Value $ 0 [10],[24]             $ 100,000 [4],[5],[29]            
Investment, Identifier [Axis]: Bowery Farming Inc, Warrants, Food, Beverage & Tobacco 2                            
Principal (in shares) | shares 1,918,831 [10],[24] 1,918,831 [10],[24] 1,918,831 [10],[24] 1,918,831 [10],[24] 1,918,831 [10],[24] 1,918,831 [10],[24] 1,918,831 [10],[24] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29] 1,058,391 [4],[29]  
Amortized Cost $ 0 [10],[24]             $ 0 [4],[29]            
Fair Value $ 600,000 [3],[10],[24]             $ 0 [4],[5],[29]            
Investment, Identifier [Axis]: Byrider Finance LLC, Private Equity, Automobiles & Components                            
Principal (in shares) | shares 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [10],[12],[24],[53] 54,407 [4],[13],[29],[54] 54,407 [4],[13],[29],[54] 54,407 [4],[13],[29],[54] 54,407 [4],[13],[29],[54] 54,407 [4],[13],[29],[54] 54,407 [4],[13],[29],[54]  
Amortized Cost $ 0 [10],[24],[53]             $ 0 [4],[29],[54]            
Fair Value $ 0 [3],[10],[24],[53]             $ 0 [4],[5],[29],[54]            
Investment, Identifier [Axis]: Byrider Finance LLC, Term Loan, Automobiles & Components                            
Principal (in shares) | shares [4],[13],[29],[54]               5,000,000 5,000,000 5,000,000 5,000,000 5,000,000 5,000,000  
Amortized Cost [4],[29],[54]               $ 5,000,000.0            
Fair Value [4],[5],[29],[54]               $ 0            
Investment, Identifier [Axis]: CDS US Intermediate Holdings Inc, Warrant, Media & Entertainment                            
Principal (in shares) | shares 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [10],[24],[27] 2,023,714 [4],[6],[29] 2,023,714 [4],[6],[29] 2,023,714 [4],[6],[29] 2,023,714 [4],[6],[29] 2,023,714 [4],[6],[29] 2,023,714 [4],[6],[29]  
Amortized Cost $ 0 [10],[24],[27]             $ 0 [4],[6],[29]            
Fair Value $ 6,800,000 [3],[10],[24],[27]             $ 6,300,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: CFC Underwriting Ltd, Insurance                            
Rate, basis spread on variable rate 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [9],[17],[27] 5.00% [6],[11],[18] 5.00% [6],[11],[18] 5.00% [6],[11],[18] 5.00% [6],[11],[18] 5.00% [6],[11],[18] 5.00% [6],[11],[18]  
Rate, PIK 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18]  
Floor 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | £         £ 4.7 [12],[17],[27]             £ 4.7 [6],[13],[18]    
Amortized Cost $ 5,700,000 [17],[27]             $ 5,700,000 [6],[18]            
Fair Value $ 5,700,000 [3],[17],[27]             $ 5,800,000 [5],[6],[18]            
Investment, Identifier [Axis]: CFC Underwriting Ltd, Insurance | Maximum                            
Rate, PIK 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [9],[17],[27] 2.80% [6],[11],[18] 2.80% [6],[11],[18] 2.80% [6],[11],[18] 2.80% [6],[11],[18] 2.80% [6],[11],[18] 2.80% [6],[11],[18]  
Investment, Identifier [Axis]: CSafe Global, Transportation 1                            
Rate, basis spread on variable rate 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 79,000,000.0 [12],[14],[19],[20]             $ 7,000,000.0 [4],[13]            
Amortized Cost 78,900,000 [14],[19],[20]             7,000,000.0 [4]            
Fair Value $ 79,000,000.0 [3],[14],[19],[20]             $ 6,900,000 [4],[5]            
Investment, Identifier [Axis]: CSafe Global, Transportation 2                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44]  
Principal Amount         £ 15.5 [10],[12]     $ 184,900,000 [4],[13],[16],[21],[22],[42],[44]            
Amortized Cost $ 19,900,000 [10]             180,500,000 [4],[16],[21],[22],[42],[44]            
Fair Value $ 19,600,000 [3],[10]             $ 184,200,000 [4],[5],[16],[21],[22],[42],[44]            
Investment, Identifier [Axis]: CSafe Global, Transportation 3                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 11,500,000 [12],[17]                     £ 26.9 [4],[13]    
Amortized Cost 11,500,000 [17]             $ 35,600,000 [4]            
Fair Value $ 11,500,000 [3],[17]             $ 34,100,000 [4],[5]            
Investment, Identifier [Axis]: CSafe Global, Transportation 4                            
Rate, basis spread on variable rate 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 5.75% [9],[14],[17],[19],[20] 6.25% [4],[11],[42] 6.25% [4],[11],[42] 6.25% [4],[11],[42] 6.25% [4],[11],[42] 6.25% [4],[11],[42] 6.25% [4],[11],[42]  
Floor 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 0.80% [9],[14],[17],[19],[20] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42]  
Principal Amount $ 4,700,000 [12],[14],[17],[19],[20]                     £ 11.7 [4],[13],[42]    
Amortized Cost 4,700,000 [14],[17],[19],[20]             $ 11,700,000 [4],[42]            
Fair Value $ 4,700,000 [3],[14],[17],[19],[20]             $ 11,600,000 [4],[5],[42]            
Investment, Identifier [Axis]: CSafe Global, Transportation 5                            
Rate, basis spread on variable rate [11],[18]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount | £ [13],[18]                       £ 27.9    
Amortized Cost [18]               $ 27,900,000            
Fair Value [5],[18]               $ 27,800,000            
Investment, Identifier [Axis]: CTI Foods Holding Co LLC, Common Stock, Food, Beverage & Tobacco                            
Principal (in shares) | shares [4],[29]               5,892 5,892 5,892 5,892 5,892 5,892  
Amortized Cost [4],[29]               $ 700,000            
Fair Value [4],[5],[29]               $ 0            
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail                            
Rate, basis spread on variable rate [9],[27],[40],[43] 4.00% 4.00% 4.00% 4.00% 4.00% 4.00% 4.00%              
Floor [9],[27],[40],[43] 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% 0.50%              
Principal Amount [12],[27],[40],[43] $ 1,400,000                          
Amortized Cost [27],[40],[43] 1,400,000                          
Fair Value [3],[27],[40],[43] $ 1,400,000                          
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail                            
Rate, basis spread on variable rate [4],[6],[11]               7.25% 7.25% 7.25% 7.25% 7.25% 7.25%  
Floor [4],[6]               0.50% 0.50% 0.50% 0.50% 0.50% 0.50%  
Principal Amount [4],[6],[13]               $ 40,000,000.0            
Amortized Cost [4],[6]               39,100,000            
Fair Value [4],[5],[6]               $ 39,600,000            
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail 1                            
Rate, basis spread on variable rate [6],[11],[41],[42]               3.75% 3.75% 3.75% 3.75% 3.75% 3.75%  
Floor [6],[41],[42]               0.50% 0.50% 0.50% 0.50% 0.50% 0.50%  
Principal Amount [6],[13],[41],[42]               $ 1,400,000            
Amortized Cost [6],[41],[42]               1,400,000            
Fair Value [5],[6],[41],[42]               $ 1,400,000            
Investment, Identifier [Axis]: Caldic BV, Consumer Discretionary Distribution & Retail 2                            
Rate, basis spread on variable rate [4],[6],[11],[41]               3.50% 3.50% 3.50% 3.50% 3.50% 3.50%  
Floor [4],[6],[41]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | € [4],[6],[13],[41]                     € 0.8      
Amortized Cost [4],[6],[41]               $ 900,000            
Fair Value [4],[5],[6],[41]               $ 900,000            
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan A, Financial Services                            
Rate, basis spread on variable rate 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 100,000,000.0 [10],[12]             $ 125,000,000.0 [4],[13]            
Amortized Cost 96,400,000 [10]             121,000,000.0 [4]            
Fair Value $ 100,900,000 [3],[10]             $ 126,000,000.0 [4],[5]            
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Financial Services 1                            
Rate, basis spread on variable rate 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 12,000,000.0 [10],[12]             $ 12,000,000.0 [4],[13]            
Amortized Cost 12,000,000.0 [10]             12,000,000.0 [4]            
Fair Value $ 12,100,000 [3],[10]             $ 12,100,000 [4],[5]            
Investment, Identifier [Axis]: Callodine Commercial Finance LLC, 2L Term Loan B, Financial Services 2                            
Rate, basis spread on variable rate 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [9],[10],[17] 9.00% [11],[18] 9.00% [11],[18] 9.00% [11],[18] 9.00% [11],[18] 9.00% [11],[18] 9.00% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 36,100,000 [10],[12],[17]             $ 36,100,000 [13],[18]            
Amortized Cost 36,100,000 [10],[17]             36,100,000 [18]            
Fair Value 36,400,000 [3],[10],[17]             36,400,000 [5],[18]            
Investment, Identifier [Axis]: Capital Automotive LP, Private Equity                            
Fair Value $ 31,900,000             $ 32,400,000 [36]           0 [36]
Investment, Identifier [Axis]: Capital Automotive LP, Private Equity, Equity Real Estate Investment Trusts (REITs)                            
Principal (in shares) | shares 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 20,702,800 [10],[12],[27],[32] 21,190,090 [4],[6],[13],[33] 21,190,090 [4],[6],[13],[33] 21,190,090 [4],[6],[13],[33] 21,190,090 [4],[6],[13],[33] 21,190,090 [4],[6],[13],[33] 21,190,090 [4],[6],[13],[33]  
Amortized Cost $ 22,700,000 [10],[27],[32]             $ 23,200,000 [4],[6],[33]            
Fair Value 31,900,000 [3],[10],[27],[32]             32,400,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Capital Automotive LP, Structured Mezzanine                            
Fair Value $ 41,400,000             $ 41,500,000 [36]           0 [36]
Investment, Identifier [Axis]: Capital Automotive LP, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)                            
Rate, stated interest rate 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [9],[10],[27],[32] 11.00% [4],[6],[11],[33] 11.00% [4],[6],[11],[33] 11.00% [4],[6],[11],[33] 11.00% [4],[6],[11],[33] 11.00% [4],[6],[11],[33] 11.00% [4],[6],[11],[33]  
Principal Amount [10],[12],[27],[32] $ 41,400,000                          
Principal (in shares) | shares [4],[6],[13],[33]               41,500,000 41,500,000 41,500,000 41,500,000 41,500,000 41,500,000  
Amortized Cost 40,800,000 [10],[27],[32]             $ 40,900,000 [4],[6],[33]            
Fair Value $ 41,400,000 [3],[10],[27],[32]             $ 41,500,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Careismatic Brands Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate [4],[11]               6.75% 6.75% 6.75% 6.75% 6.75% 6.75%  
Floor [4]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[13]               $ 11,500,000            
Amortized Cost [4]               11,500,000            
Fair Value [4],[5]               $ 11,500,000            
Investment, Identifier [Axis]: Careismatic Brands Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate [11],[18]               6.75% 6.75% 6.75% 6.75% 6.75% 6.75%  
Floor [18]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [13],[18]               $ 18,500,000            
Amortized Cost [18]               18,500,000            
Fair Value [5],[18]               $ 18,500,000            
Investment, Identifier [Axis]: Cengage Learning, Inc, Common Stock, Media & Entertainment                            
Principal (in shares) | shares 227,802 [10],[24] 227,802 [10],[24] 227,802 [10],[24] 227,802 [10],[24] 227,802 [10],[24] 227,802 [10],[24] 227,802 [10],[24] 227,802 [4],[29] 227,802 [4],[29] 227,802 [4],[29] 227,802 [4],[29] 227,802 [4],[29] 227,802 [4],[29]  
Amortized Cost $ 7,500,000 [10],[24]             $ 7,500,000 [4],[29]            
Fair Value $ 3,700,000 [3],[10],[24]             $ 3,600,000 [4],[5],[29]            
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 600,000 [10],[12]             $ 200,000 [4],[13]            
Amortized Cost 600,000 [10]             200,000 [4]            
Fair Value $ 600,000 [3],[10]             $ 200,000 [4],[5]            
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 2                            
Rate, basis spread on variable rate 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42]  
Rate, PIK 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 19,600,000 [10],[12],[43]             $ 19,500,000 [4],[13],[42]            
Amortized Cost 19,600,000 [10],[43]             19,500,000 [4],[42]            
Fair Value $ 19,800,000 [3],[10],[43]             $ 19,700,000 [4],[5],[42]            
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 2 | Maximum                            
Rate, PIK 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [9],[10],[43] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42] 2.80% [4],[11],[42]  
Investment, Identifier [Axis]: Circana Group (f.k.a. NPD Group), Consumer Services 3                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 400,000 [10],[12],[17]             $ 800,000 [13],[18]            
Amortized Cost 400,000 [10],[17]             800,000 [18]            
Fair Value $ 400,000 [3],[10],[17]             $ 800,000 [5],[18]            
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services                            
Rate, basis spread on variable rate [9],[17],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Rate, PIK [9],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Principal Amount | £ [12],[17],[27]         £ 7.5                  
Amortized Cost [17],[27] $ 9,600,000                          
Fair Value [3],[17],[27] $ 9,400,000                          
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services | Maximum                            
Rate, PIK [9],[17],[27] 2.10% 2.10% 2.10% 2.10% 2.10% 2.10% 2.10%              
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 1                            
Rate, basis spread on variable rate [4],[6],[11]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Rate, PIK [4],[6],[11]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor [4],[6]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | £ [4],[6],[13]                       £ 17.7    
Amortized Cost [4],[6]               $ 21,800,000            
Fair Value [4],[5],[6]               $ 22,100,000            
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 1 | Maximum                            
Rate, PIK [4],[6],[11]               2.10% 2.10% 2.10% 2.10% 2.10% 2.10%  
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 2                            
Rate, basis spread on variable rate [4],[6],[11]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Rate, PIK [4],[6],[11]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor [4],[6]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount [4],[6],[13]                         $ 1.0  
Amortized Cost [4],[6]               $ 600,000            
Fair Value [4],[5],[6]               $ 700,000            
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 2 | Maximum                            
Rate, PIK [4],[6],[11]               2.10% 2.10% 2.10% 2.10% 2.10% 2.10%  
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 3                            
Rate, basis spread on variable rate [6],[11],[18]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Rate, PIK [6],[11],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor [6],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | £ [6],[13],[18]                       £ 7.5    
Amortized Cost [6],[18]               $ 9,600,000            
Fair Value [5],[6],[18]               $ 9,400,000            
Investment, Identifier [Axis]: Civica Group Ltd, Software & Services 3 | Maximum                            
Rate, PIK [6],[11],[18]               2.10% 2.10% 2.10% 2.10% 2.10% 2.10%  
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 1                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 6.25% [4],[11],[16],[21],[34],[42],[44] 6.25% [4],[11],[16],[21],[34],[42],[44] 6.25% [4],[11],[16],[21],[34],[42],[44] 6.25% [4],[11],[16],[21],[34],[42],[44] 6.25% [4],[11],[16],[21],[34],[42],[44] 6.25% [4],[11],[16],[21],[34],[42],[44]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 1.00% [4],[16],[21],[34],[42],[44] 1.00% [4],[16],[21],[34],[42],[44] 1.00% [4],[16],[21],[34],[42],[44] 1.00% [4],[16],[21],[34],[42],[44] 1.00% [4],[16],[21],[34],[42],[44] 1.00% [4],[16],[21],[34],[42],[44]  
Principal Amount $ 700,000 [10],[12]             $ 225,500,000 [4],[13],[16],[21],[34],[42],[44]            
Amortized Cost 700,000 [10]             221,100,000 [4],[16],[21],[34],[42],[44]            
Fair Value $ 700,000 [3],[10]             $ 225,500,000 [4],[5],[16],[21],[34],[42],[44]            
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 2                            
Rate, basis spread on variable rate 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 5.75% [9],[10],[14],[19],[20] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Rate, PIK [9],[10],[14],[19],[20] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 0.80% [9],[10],[14],[19],[20] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 160,100,000 [10],[12],[14],[19],[20]             $ 25,400,000 [13],[18]            
Amortized Cost 158,600,000 [10],[14],[19],[20]             25,400,000 [18]            
Fair Value $ 158,500,000 [3],[10],[14],[19],[20]             $ 25,400,000 [5],[18]            
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 2 | Maximum                            
Rate, PIK [9],[10],[14],[19],[20] 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50%              
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 3                            
Rate, basis spread on variable rate [9],[10],[17] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 21,000,000.0                          
Amortized Cost [10],[17] 21,000,000.0                          
Fair Value [3],[10],[17] $ 20,800,000                          
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 4                            
Rate, basis spread on variable rate [9],[10],[14],[17],[19],[20] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Rate, PIK [9],[10],[14],[17],[19],[20] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10],[14],[17],[19],[20] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[14],[17],[19],[20] $ 21,700,000                          
Amortized Cost [10],[14],[17],[19],[20] 21,700,000                          
Fair Value [3],[10],[14],[17],[19],[20] $ 21,500,000                          
Investment, Identifier [Axis]: Clarience Technologies LLC, Capital Goods 4 | Maximum                            
Rate, PIK [9],[10],[14],[17],[19],[20] 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50%              
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 32,300,000 [10],[12]             $ 32,400,000 [4],[13]            
Amortized Cost 31,800,000 [10]             31,900,000 [4]            
Fair Value $ 32,300,000 [3],[10]             $ 31,900,000 [4],[5]            
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 1,900,000 [12],[17]             $ 3,900,000 [13],[18]            
Amortized Cost 1,900,000 [17]             3,800,000 [18]            
Fair Value 1,900,000 [3],[17]             $ 3,800,000 [5],[18]            
Investment, Identifier [Axis]: Community Brands Inc, Software & Services 3                            
Rate, basis spread on variable rate [11],[18]               5.50% 5.50% 5.50% 5.50% 5.50% 5.50%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[18]               $ 1,900,000            
Amortized Cost [18]               1,900,000            
Fair Value [5],[18]               1,900,000            
Investment, Identifier [Axis]: Constellis Holdings LLC 1                            
Fair Value 15,100,000             15,100,000           15,000,000.0
Investment, Identifier [Axis]: Constellis Holdings LLC 2                            
Fair Value $ 9,600,000             $ 9,000,000.0           13,500,000
Investment, Identifier [Axis]: Constellis Holdings LLC, Capital Goods 1                            
Rate, basis spread on variable rate 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [9],[10],[37] 7.75% [4],[11],[38] 7.75% [4],[11],[38] 7.75% [4],[11],[38] 7.75% [4],[11],[38] 7.75% [4],[11],[38] 7.75% [4],[11],[38]  
Floor 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38]  
Principal Amount $ 15,100,000 [10],[12],[37]             $ 15,100,000 [4],[13],[38]            
Amortized Cost 14,700,000 [10],[37]             14,600,000 [4],[38]            
Fair Value $ 15,100,000 [3],[10],[37]             $ 15,100,000 [4],[5],[38]            
Investment, Identifier [Axis]: Constellis Holdings LLC, Capital Goods 2                            
Rate, basis spread on variable rate 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [9],[10],[37] 11.00% [4],[11],[38] 11.00% [4],[11],[38] 11.00% [4],[11],[38] 11.00% [4],[11],[38] 11.00% [4],[11],[38] 11.00% [4],[11],[38]  
Rate, PIK 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [9],[10],[37] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38] 0.00% [4],[11],[38]  
Floor 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38]  
Principal Amount $ 13,600,000 [10],[12],[37]             $ 13,600,000 [4],[13],[38]            
Amortized Cost 13,000,000.0 [10],[37]             13,100,000 [4],[38]            
Fair Value $ 9,600,000 [3],[10],[37]             $ 9,000,000.0 [4],[5],[38]            
Investment, Identifier [Axis]: Constellis Holdings LLC, Capital Goods 2 | Maximum                            
Rate, PIK 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [9],[10],[37] 5.00% [4],[11],[38] 5.00% [4],[11],[38] 5.00% [4],[11],[38] 5.00% [4],[11],[38] 5.00% [4],[11],[38] 5.00% [4],[11],[38]  
Investment, Identifier [Axis]: Constellis Holdings LLC, Private Equity                            
Fair Value $ 0             $ 0           6,300,000
Investment, Identifier [Axis]: Constellis Holdings LLC, Private Equity, Capital Goods                            
Principal (in shares) | shares 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [10],[19],[24],[37] 849,702 [4],[21],[29],[38] 849,702 [4],[21],[29],[38] 849,702 [4],[21],[29],[38] 849,702 [4],[21],[29],[38] 849,702 [4],[21],[29],[38] 849,702 [4],[21],[29],[38]  
Amortized Cost $ 10,300,000 [10],[19],[24],[37]             $ 10,300,000 [4],[21],[29],[38]            
Fair Value $ 0 [3],[10],[19],[24],[37]             $ 0 [4],[5],[21],[29],[38]            
Investment, Identifier [Axis]: Corsearch Intermediate Inc, Software & Services                            
Rate, basis spread on variable rate 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42]  
Floor 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42]  
Principal Amount $ 30,100,000 [10],[12],[43]             $ 30,100,000 [4],[13],[42]            
Amortized Cost 28,800,000 [10],[43]             28,700,000 [4],[42]            
Fair Value $ 30,100,000 [3],[10],[43]             $ 29,900,000 [4],[5],[42]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount $ 15,300,000 [10],[12],[27]             $ 14,100,000 [4],[6],[13]            
Amortized Cost 15,300,000 [10],[27]             14,100,000 [4],[6]            
Fair Value $ 15,300,000 [3],[10],[27]             $ 14,100,000 [4],[5],[6]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount             $ 1.7 [10],[12],[27] $ 1,800,000 [4],[6],[13]            
Amortized Cost $ 1,200,000 [10],[27]             1,300,000 [4],[6]            
Fair Value $ 1,200,000 [3],[10],[27]             $ 1,300,000 [4],[5],[6]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 3                            
Rate, basis spread on variable rate 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount | €       € 0.6 [10],[12],[27]             € 2.0 [4],[6],[13]      
Amortized Cost $ 600,000 [10],[27]             $ 2,100,000 [4],[6]            
Fair Value $ 600,000 [3],[10],[27]             $ 2,300,000 [4],[5],[6]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 4                            
Rate, basis spread on variable rate 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 4,700,000 [10],[12],[17],[27]             $ 5,900,000 [6],[13],[18]            
Amortized Cost 4,700,000 [10],[17],[27]             5,900,000 [6],[18]            
Fair Value $ 4,700,000 [3],[10],[17],[27]             $ 5,900,000 [5],[6],[18]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 5                            
Rate, basis spread on variable rate 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount             $ 2.3 [10],[12],[17],[27] $ 2,200,000 [6],[13],[18]            
Amortized Cost $ 1,800,000 [10],[17],[27]             1,700,000 [6],[18]            
Fair Value $ 1,900,000 [3],[10],[17],[27]             $ 1,800,000 [5],[6],[18]            
Investment, Identifier [Axis]: Covis Finco Sarl, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 6                            
Rate, basis spread on variable rate 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount | €       € 3.4 [10],[12],[17],[27]             € 2.0 [6],[13],[18]      
Amortized Cost $ 3,600,000 [10],[17],[27]             $ 2,100,000 [6],[18]            
Fair Value 3,800,000 [3],[10],[17],[27]             2,000,000.0 [5],[6],[18]            
Investment, Identifier [Axis]: Credit Opportunities Partners JV, LLC                            
Fair Value 1,390,300,000             1,396,900,000           1,428,300,000
Investment, Identifier [Axis]: Credit Opportunities Partners JV, LLC, Credit Opportunities Partners JV, LLC                            
Principal Amount 1,637,300,000 [10],[12],[27],[32]             1,637,300,000 [4],[6],[13],[33]            
Amortized Cost 1,571,700,000 [10],[27],[32]             1,571,700,000 [4],[6],[33]            
Fair Value $ 1,390,300,000 [3],[10],[27],[32]             $ 1,396,900,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Cubic Corp, Preferred Stock, Software & Services                            
Rate, PIK 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11]  
Principal (in shares) | shares 42,141,600 [10] 42,141,600 [10] 42,141,600 [10] 42,141,600 [10] 42,141,600 [10] 42,141,600 [10] 42,141,600 [10] 42,141,600 [4] 42,141,600 [4] 42,141,600 [4] 42,141,600 [4] 42,141,600 [4] 42,141,600 [4]  
Amortized Cost $ 39,800,000 [10]             $ 39,700,000 [4]            
Fair Value $ 32,600,000 [3],[10]             $ 33,900,000 [4],[5]            
Investment, Identifier [Axis]: Cubic Corp, Preferred Stock, Software & Services | Maximum                            
Rate, PIK 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [9],[10] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11] 11.00% [4],[11]  
Investment, Identifier [Axis]: Cubic Corp, Software & Services                            
Rate, basis spread on variable rate 7.63% [9],[10] 7.63% [9],[10] 7.63% [9],[10] 7.63% [9],[10] 7.63% [9],[10] 7.63% [9],[10] 7.63% [9],[10] 7.63% [4],[11] 7.63% [4],[11] 7.63% [4],[11] 7.63% [4],[11] 7.63% [4],[11] 7.63% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 44,800,000 [10],[12]             $ 44,800,000 [4],[13]            
Amortized Cost 42,500,000 [10]             42,400,000 [4]            
Fair Value $ 42,000,000.0 [3],[10]             $ 42,800,000 [4],[5]            
Investment, Identifier [Axis]: Curia Global Inc, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate [9],[10],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Floor [9],[10],[27] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[27] $ 42,000,000.0                          
Amortized Cost [10],[27] 42,000,000.0                          
Fair Value [3],[10],[27] $ 42,000,000.0                          
Investment, Identifier [Axis]: Curia Global Inc, Revolver, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate [9],[10],[17],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Floor [9],[10],[17],[27] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[17],[27] $ 41,300,000                          
Amortized Cost [10],[17],[27] 41,300,000                          
Fair Value [3],[10],[17],[27] $ 41,300,000                          
Investment, Identifier [Axis]: DOC Generici Srl, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 11.6 [10],[12],[27]             € 23.1 [4],[6],[13]      
Amortized Cost $ 11,300,000 [10],[27]             $ 22,600,000 [4],[6]            
Fair Value $ 12,500,000 [3],[10],[27]             $ 25,300,000 [4],[5],[6]            
Investment, Identifier [Axis]: DOC Generici Srl, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [9],[17],[27] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18]  
Floor 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | €       € 2.4 [12],[17],[27]             € 2.4 [6],[13],[18]      
Amortized Cost $ 2,300,000 [17],[27]             $ 2,300,000 [6],[18]            
Fair Value $ 2,400,000 [3],[17],[27]             $ 2,400,000 [5],[6],[18]            
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, Insurance 1                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 6,000,000.0 [10],[12]             $ 15,300,000 [4],[13]            
Amortized Cost 6,000,000.0 [10]             15,200,000 [4]            
Fair Value $ 6,000,000.0 [3],[10]             $ 15,200,000 [4],[5]            
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, Insurance 2                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 15,300,000 [10],[12]             $ 3,300,000 [13],[18]            
Amortized Cost 15,200,000 [10]             3,300,000 [18]            
Fair Value $ 15,200,000 [3],[10]             $ 3,300,000 [5],[18]            
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, Insurance 3                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 3,300,000 [12],[17]             $ 14,600,000 [13],[18]            
Amortized Cost 3,300,000 [17]             14,600,000 [18]            
Fair Value $ 3,300,000 [3],[17]             $ 14,400,000 [5],[18]            
Investment, Identifier [Axis]: DOXA Insurance Holdings LLC, Insurance 4                            
Rate, basis spread on variable rate [9],[10],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 8,600,000                          
Amortized Cost [10],[17] 8,600,000                          
Fair Value [3],[10],[17] $ 8,500,000                          
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate [9],[10],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Rate, PIK [9],[10],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Principal Amount | € [10],[12],[27]       € 13.8                    
Amortized Cost [10],[27] $ 14,200,000                          
Fair Value [3],[10],[27] $ 14,800,000                          
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 1 | Maximum                            
Rate, PIK [9],[10],[27] 3.30% 3.30% 3.30% 3.30% 3.30% 3.30% 3.30%              
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate [9],[10],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Rate, PIK [9],[10],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10],[27] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[27] $ 15,200,000                          
Amortized Cost [10],[27] 14,900,000                          
Fair Value [3],[10],[27] $ 15,100,000                          
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 2 | Maximum                            
Rate, PIK [9],[10],[27] 3.30% 3.30% 3.30% 3.30% 3.30% 3.30% 3.30%              
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 3                            
Rate, basis spread on variable rate [9],[10],[17],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Rate, PIK [9],[10],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Principal Amount | € [10],[12],[17],[27]       € 3.3                    
Amortized Cost [10],[17],[27] $ 3,400,000                          
Fair Value [3],[10],[17],[27] $ 3,500,000                          
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 3 | Maximum                            
Rate, PIK [9],[10],[17],[27] 3.30% 3.30% 3.30% 3.30% 3.30% 3.30% 3.30%              
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 4                            
Rate, basis spread on variable rate [9],[10],[17],[27] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Rate, PIK [9],[10],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10],[17],[27] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17],[27] $ 3,700,000                          
Amortized Cost [10],[17],[27] 3,600,000                          
Fair Value [3],[10],[17],[27] $ 3,600,000                          
Investment, Identifier [Axis]: Dechra Pharmaceuticals Ltd, Pharmaceuticals, Biotechnology & Life Sciences 4 | Maximum                            
Rate, PIK [9],[10],[17],[27] 3.30% 3.30% 3.30% 3.30% 3.30% 3.30% 3.30%              
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services                            
Rate, basis spread on variable rate [9],[10],[14],[20],[43] 6.41% 6.41% 6.41% 6.41% 6.41% 6.41% 6.41%              
Floor [9],[10],[14],[20],[43] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[14],[20],[43] $ 110,600,000                          
Amortized Cost [10],[14],[20],[43] 108,100,000                          
Fair Value [3],[10],[14],[20],[43] $ 110,600,000                          
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate [4],[11],[16],[22],[42]               6.41% 6.41% 6.41% 6.41% 6.41% 6.41%  
Floor [4],[16],[22],[42]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [4],[13],[16],[22],[42]               $ 98,700,000            
Amortized Cost [4],[16],[22],[42]               96,200,000            
Fair Value [4],[5],[16],[22],[42]               $ 97,700,000            
Investment, Identifier [Axis]: Dental Care Alliance Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate [4],[11]               6.41% 6.41% 6.41% 6.41% 6.41% 6.41%  
Floor [4]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [4],[13]               $ 12,100,000            
Amortized Cost [4]               12,100,000            
Fair Value [4],[5]               $ 12,000,000.0            
Investment, Identifier [Axis]: Drive Revel, Private Equity, Financial Services                            
Principal (in shares) | shares 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 2,587,091 [10],[12],[27] 1,853,796 [4],[6],[13],[29] 1,853,796 [4],[6],[13],[29] 1,853,796 [4],[6],[13],[29] 1,853,796 [4],[6],[13],[29] 1,853,796 [4],[6],[13],[29] 1,853,796 [4],[6],[13],[29]  
Amortized Cost $ 2,800,000 [10],[27]             $ 2,000,000.0 [4],[6],[29]            
Fair Value $ 2,800,000 [3],[10],[27]             $ 2,200,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services                            
Variable rate, PIK [4],[6],[11]               8.50% 8.50% 8.50% 8.50% 8.50% 8.50%  
Floor [4],[6]               0.50% 0.50% 0.50% 0.50% 0.50% 0.50%  
Principal Amount [4],[6],[13]               $ 77,500,000            
Amortized Cost [4],[6]               76,300,000            
Fair Value [4],[5],[6]               $ 74,100,000            
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services | Maximum                            
Variable rate, PIK [4],[6],[11]               8.50% 8.50% 8.50% 8.50% 8.50% 8.50%  
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [9],[27],[40],[43] 4.25% [6],[11],[41],[42] 4.25% [6],[11],[41],[42] 4.25% [6],[11],[41],[42] 4.25% [6],[11],[41],[42] 4.25% [6],[11],[41],[42] 4.25% [6],[11],[41],[42]  
Floor 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42]  
Principal Amount $ 1,400,000 [12],[27],[40],[43]             $ 1,400,000 [6],[13],[41],[42]            
Amortized Cost 1,400,000 [27],[40],[43]             1,400,000 [6],[41],[42]            
Fair Value $ 1,400,000 [3],[27],[40],[43]             $ 1,400,000 [5],[6],[41],[42]            
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [9],[10],[27],[40] 4.25% [4],[6],[11],[41] 4.25% [4],[6],[11],[41] 4.25% [4],[6],[11],[41] 4.25% [4],[6],[11],[41] 4.25% [4],[6],[11],[41] 4.25% [4],[6],[11],[41]  
Floor 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41]  
Principal Amount | €       € 0.3 [10],[12],[27],[40]             € 0.3 [4],[6],[13],[41]      
Amortized Cost $ 400,000 [10],[27],[40]             $ 400,000 [4],[6],[41]            
Fair Value $ 400,000 [3],[10],[27],[40]             $ 400,000 [4],[5],[6],[41]            
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 3                            
Variable rate, PIK [9],[10],[27] 8.50% 8.50% 8.50% 8.50% 8.50% 8.50% 8.50%              
Floor [9],[10],[27] 0.50% 0.50% 0.50% 0.50% 0.50% 0.50% 0.50%              
Principal Amount [10],[12],[27] $ 80,200,000                          
Amortized Cost [10],[27] 78,900,000                          
Fair Value [3],[10],[27] $ 81,800,000                          
Investment, Identifier [Axis]: Element Materials Technology Group US Holdings Inc, Commercial & Professional Services 3 | Maximum                            
Variable rate, PIK [9],[10],[27] 8.50% 8.50% 8.50% 8.50% 8.50% 8.50% 8.50%              
Investment, Identifier [Axis]: Ellucian Inc, Software & Services                            
Rate, basis spread on variable rate 8.00% [9],[10] 8.00% [9],[10] 8.00% [9],[10] 8.00% [9],[10] 8.00% [9],[10] 8.00% [9],[10] 8.00% [9],[10] 8.00% [4],[11] 8.00% [4],[11] 8.00% [4],[11] 8.00% [4],[11] 8.00% [4],[11] 8.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 112,800,000 [10],[12]             $ 179,200,000 [4],[13]            
Amortized Cost 107,000,000.0 [10]             171,900,000 [4]            
Fair Value $ 113,900,000 [3],[10]             $ 181,000,000.0 [4],[5]            
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services                            
Rate, PIK [4],[11]               9.80% 9.80% 9.80% 9.80% 9.80% 9.80%  
Principal Amount [4],[13]               $ 26,200,000            
Amortized Cost [4]               25,600,000            
Fair Value [4],[5]               $ 25,100,000            
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services | Maximum                            
Rate, PIK [4],[11]               9.80% 9.80% 9.80% 9.80% 9.80% 9.80%  
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 19,600,000 [10],[12]             $ 19,600,000 [4],[13]            
Amortized Cost 19,300,000 [10]             19,300,000 [4]            
Fair Value $ 19,600,000 [3],[10]             $ 19,600,000 [4],[5]            
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [9],[10] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11] 5.08% [4],[11]  
Rate, PIK 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 65,100,000 [10],[12]             $ 65,100,000 [4],[13]            
Amortized Cost 64,200,000 [10]             64,200,000 [4]            
Fair Value $ 65,100,000 [3],[10]             $ 65,100,000 [4],[5]            
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services 2 | Maximum                            
Rate, PIK 2.30% [9],[10] 2.30% [9],[10] 2.30% [9],[10] 2.30% [9],[10] 2.30% [9],[10] 2.30% [9],[10] 2.30% [9],[10] 2.30% [4],[11] 2.30% [4],[11] 2.30% [4],[11] 2.30% [4],[11] 2.30% [4],[11] 2.30% [4],[11]  
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services 3                            
Rate, PIK [9],[10] 9.80% 9.80% 9.80% 9.80% 9.80% 9.80% 9.80%              
Principal Amount [10],[12] $ 26,200,000                          
Amortized Cost [10] 25,600,000                          
Fair Value [3],[10] $ 25,400,000                          
Investment, Identifier [Axis]: Encora Digital LLC, Commercial & Professional Services 3 | Maximum                            
Rate, PIK [9],[10] 9.80% 9.80% 9.80% 9.80% 9.80% 9.80% 9.80%              
Investment, Identifier [Axis]: Envirotainer Ltd, Transportation                            
Rate, basis spread on variable rate 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [9],[17],[27] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18]  
Rate, PIK 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18]  
Floor 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [4],[6],[18] 0.00% [4],[6],[18] 0.00% [4],[6],[18] 0.00% [4],[6],[18] 0.00% [4],[6],[18] 0.00% [4],[6],[18]  
Principal Amount | €       € 2.7 [12],[17],[27]             € 2.7 [4],[6],[13],[18]      
Amortized Cost $ 2,700,000 [17],[27]             $ 2,700,000 [4],[6],[18]            
Fair Value $ 2,700,000 [3],[17],[27]             $ 2,700,000 [4],[5],[6],[18]            
Investment, Identifier [Axis]: Envirotainer Ltd, Transportation | Maximum                            
Rate, PIK 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [9],[17],[27] 3.00% [6],[11],[18] 3.00% [6],[11],[18] 3.00% [6],[11],[18] 3.00% [6],[11],[18] 3.00% [6],[11],[18] 3.00% [6],[11],[18]  
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 1                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 1,700,000 [10],[12]             $ 1,500,000 [4],[13]            
Amortized Cost 1,700,000 [10]             1,500,000 [4]            
Fair Value $ 1,700,000 [3],[10]             $ 1,400,000 [4],[5]            
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 2                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 2,300,000 [10],[12]             $ 2,300,000 [4],[13]            
Amortized Cost 2,300,000 [10]             2,300,000 [4]            
Fair Value $ 2,300,000 [3],[10]             $ 2,300,000 [4],[5]            
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 3                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 600,000 [10],[12],[17]             $ 900,000 [13],[18]            
Amortized Cost 600,000 [10],[17]             900,000 [18]            
Fair Value $ 600,000 [3],[10],[17]             $ 900,000 [5],[18]            
Investment, Identifier [Axis]: Excelitas Technologies Corp, Technology Hardware & Equipment 4                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount $ 800,000 [10],[12],[17]             $ 800,000 [13],[18]            
Amortized Cost 800,000 [10],[17]             800,000 [18]            
Fair Value $ 800,000 [3],[10],[17]             $ 800,000 [5],[18]            
Investment, Identifier [Axis]: Follett Software Co, Software & Services 1                            
Rate, basis spread on variable rate 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [9],[14],[19],[20] 5.75% [11],[16],[21],[22] 5.75% [11],[16],[21],[22] 5.75% [11],[16],[21],[22] 5.75% [11],[16],[21],[22] 5.75% [11],[16],[21],[22] 5.75% [11],[16],[21],[22]  
Floor 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [9],[14],[19],[20] 0.80% [16],[21],[22] 0.80% [16],[21],[22] 0.80% [16],[21],[22] 0.80% [16],[21],[22] 0.80% [16],[21],[22] 0.80% [16],[21],[22]  
Principal Amount $ 72,700,000 [12],[14],[19],[20]             $ 72,900,000 [13],[16],[21],[22]            
Amortized Cost 72,200,000 [14],[19],[20]             72,400,000 [16],[21],[22]            
Fair Value $ 72,700,000 [3],[14],[19],[20]             $ 72,800,000 [5],[16],[21],[22]            
Investment, Identifier [Axis]: Follett Software Co, Software & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 9,900,000 [12],[17]             $ 9,900,000 [13],[18]            
Amortized Cost 9,900,000 [17]             9,900,000 [18]            
Fair Value $ 9,900,000 [3],[17]             $ 9,800,000 [5],[18]            
Investment, Identifier [Axis]: Foundation Consumer Brands LLC, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [9],[10],[19],[43] 6.25% [4],[11],[21],[42] 6.25% [4],[11],[21],[42] 6.25% [4],[11],[21],[42] 6.25% [4],[11],[21],[42] 6.25% [4],[11],[21],[42] 6.25% [4],[11],[21],[42]  
Floor 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [9],[10],[19],[43] 1.00% [4],[21],[42] 1.00% [4],[21],[42] 1.00% [4],[21],[42] 1.00% [4],[21],[42] 1.00% [4],[21],[42] 1.00% [4],[21],[42]  
Principal Amount $ 69,400,000 [10],[12],[19],[43]             $ 69,600,000 [4],[13],[21],[42]            
Amortized Cost 67,100,000 [10],[19],[43]             67,100,000 [4],[21],[42]            
Fair Value $ 69,400,000 [3],[10],[19],[43]             $ 69,600,000 [4],[5],[21],[42]            
Investment, Identifier [Axis]: Foundation Consumer Brands LLC, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 6,600,000 [12],[17]             $ 6,600,000 [13],[18]            
Amortized Cost 6,600,000 [17]             6,600,000 [18]            
Fair Value $ 6,600,000 [3],[17]             $ 6,600,000 [5],[18]            
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [9],[10],[43] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42] 6.00% [4],[11],[42]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 54,100,000 [10],[12],[43]             $ 54,200,000 [4],[13],[42]            
Amortized Cost 53,400,000 [10],[43]             53,500,000 [4],[42]            
Fair Value $ 54,100,000 [3],[10],[43]             $ 54,200,000 [4],[5],[42]            
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 2                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 5,400,000 [10],[12]             $ 7,000,000.0 [13],[18]            
Amortized Cost 5,400,000 [10]             6,900,000 [18]            
Fair Value $ 5,300,000 [3],[10]             $ 7,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 3                            
Rate, basis spread on variable rate 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 7,000,000.0 [12],[17]             $ 18,500,000 [13],[18]            
Amortized Cost 6,900,000 [17]             18,500,000 [18]            
Fair Value $ 7,000,000.0 [3],[17]             $ 18,200,000 [5],[18]            
Investment, Identifier [Axis]: Foundation Risk Partners Corp, Insurance 4                            
Rate, basis spread on variable rate [9],[10],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 13,200,000                          
Amortized Cost [10],[17] 13,200,000                          
Fair Value [3],[10],[17] 13,100,000                          
Investment, Identifier [Axis]: Fox Head Inc, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares [4],[29],[55]               10,000,000 10,000,000 10,000,000 10,000,000 10,000,000 10,000,000  
Amortized Cost [4],[29],[55]               $ 2,900,000            
Fair Value [4],[5],[29],[55]               0            
Investment, Identifier [Axis]: Fronton BV, Common Stock                            
Fair Value $ 1,700,000             $ 1,800,000           1,000,000.0
Investment, Identifier [Axis]: Fronton BV, Common Stock, Consumer Services                            
Principal (in shares) | shares 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [24],[37],[56] 14,943 [29],[38],[57] 14,943 [29],[38],[57] 14,943 [29],[38],[57] 14,943 [29],[38],[57] 14,943 [29],[38],[57] 14,943 [29],[38],[57]  
Amortized Cost $ 0 [24],[37],[56]             $ 0 [29],[38],[57]            
Fair Value 1,700,000 [3],[24],[37],[56]             1,800,000 [5],[29],[38],[57]            
Investment, Identifier [Axis]: Galaxy Universal LLC 1                            
Fair Value               0           0
Investment, Identifier [Axis]: Galaxy Universal LLC 2                            
Fair Value 86,900,000             86,400,000           0
Investment, Identifier [Axis]: Galaxy Universal LLC 3                            
Fair Value 18,400,000             18,100,000           0
Investment, Identifier [Axis]: Galaxy Universal LLC, Common Stock                            
Fair Value $ 9,900,000             $ 500,000 [39]           0 [39]
Investment, Identifier [Axis]: Galaxy Universal LLC, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [24],[37],[46] 228,806 [29],[38],[52] 228,806 [29],[38],[52] 228,806 [29],[38],[52] 228,806 [29],[38],[52] 228,806 [29],[38],[52] 228,806 [29],[38],[52]  
Amortized Cost $ 35,400,000 [24],[37],[46]             $ 35,400,000 [29],[38],[52]            
Fair Value $ 9,900,000 [3],[24],[37],[46]             $ 500,000 [5],[29],[38],[52]            
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[37] 6.00% [9],[10],[37] 6.00% [9],[10],[37] 6.00% [9],[10],[37] 6.00% [9],[10],[37] 6.00% [9],[10],[37] 6.00% [9],[10],[37] 5.75% [4],[11],[38] 5.75% [4],[11],[38] 5.75% [4],[11],[38] 5.75% [4],[11],[38] 5.75% [4],[11],[38] 5.75% [4],[11],[38]  
Floor 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38]  
Principal Amount $ 86,900,000 [10],[12],[37]             $ 87,100,000 [4],[13],[38]            
Amortized Cost 86,900,000 [10],[37]             87,100,000 [4],[38]            
Fair Value $ 86,900,000 [3],[10],[37]             $ 86,400,000 [4],[5],[38]            
Investment, Identifier [Axis]: Galaxy Universal LLC, Consumer Durables & Apparel 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [9],[10],[37] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38] 5.50% [4],[11],[38]  
Floor 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [9],[10],[37] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38] 1.00% [4],[38]  
Principal Amount $ 18,600,000 [10],[12],[37]             $ 18,600,000 [4],[13],[38]            
Amortized Cost 18,500,000 [10],[37]             18,500,000 [4],[38]            
Fair Value 18,400,000 [3],[10],[37]             18,100,000 [4],[5],[38]            
Investment, Identifier [Axis]: Galaxy Universal LLC, Preferred Stock                            
Fair Value $ 6,100,000             $ 5,500,000           0
Investment, Identifier [Axis]: Galaxy Universal LLC, Preferred Stock, Consumer Durables & Apparel                            
Rate, PIK 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52]  
Principal (in shares) | shares 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [37],[46] 2,068,400 [38],[52] 2,068,400 [38],[52] 2,068,400 [38],[52] 2,068,400 [38],[52] 2,068,400 [38],[52] 2,068,400 [38],[52]  
Amortized Cost $ 4,000,000.0 [37],[46]             $ 4,000,000.0 [38],[52]            
Fair Value $ 6,100,000 [3],[37],[46]             $ 5,500,000 [5],[38],[52]            
Investment, Identifier [Axis]: Galaxy Universal LLC, Preferred Stock, Consumer Durables & Apparel | Maximum                            
Rate, PIK 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [9],[37],[46] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52] 15.90% [11],[38],[52]  
Investment, Identifier [Axis]: Galaxy Universal LLC, Trade Claim                            
Fair Value $ 1,000,000.0             $ 1,000,000.0 [39]           0 [39]
Investment, Identifier [Axis]: Galaxy Universal LLC, Trade Claim, Consumer Durables & Apparel                            
Principal (in shares) | shares 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [10],[24],[37] 7,701,195 [4],[29],[38] 7,701,195 [4],[29],[38] 7,701,195 [4],[29],[38] 7,701,195 [4],[29],[38] 7,701,195 [4],[29],[38] 7,701,195 [4],[29],[38]  
Amortized Cost $ 2,500,000 [10],[24],[37]             $ 2,500,000 [4],[29],[38]            
Fair Value $ 1,000,000.0 [3],[10],[24],[37]             $ 1,000,000.0 [4],[5],[29],[38]            
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 1                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [4],[11],[16],[22],[42] 5.25% [4],[11],[16],[22],[42] 5.25% [4],[11],[16],[22],[42] 5.25% [4],[11],[16],[22],[42] 5.25% [4],[11],[16],[22],[42] 5.25% [4],[11],[16],[22],[42]  
Rate, PIK [4],[11],[16],[22],[42]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4],[16],[22],[42] 0.80% [4],[16],[22],[42] 0.80% [4],[16],[22],[42] 0.80% [4],[16],[22],[42] 0.80% [4],[16],[22],[42] 0.80% [4],[16],[22],[42]  
Principal Amount $ 2,100,000 [10],[12]             $ 86,500,000 [4],[13],[16],[22],[42]            
Amortized Cost 2,000,000.0 [10]             85,300,000 [4],[16],[22],[42]            
Fair Value $ 2,100,000 [3],[10]             $ 85,700,000 [4],[5],[16],[22],[42]            
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 1 | Maximum                            
Rate, PIK [4],[11],[16],[22],[42]               1.30% 1.30% 1.30% 1.30% 1.30% 1.30%  
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 2                            
Rate, basis spread on variable rate 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [9],[10],[14],[20],[43] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18]  
Rate, PIK [11],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [9],[10],[14],[20],[43] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 86,300,000 [10],[12],[14],[20],[43]             $ 12,000,000.0 [13],[18]            
Amortized Cost 85,100,000 [10],[14],[20],[43]             11,800,000 [18]            
Fair Value $ 86,300,000 [3],[10],[14],[20],[43]             $ 11,800,000 [5],[18]            
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 2 | Maximum                            
Rate, PIK [11],[18]               1.30% 1.30% 1.30% 1.30% 1.30% 1.30%  
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 3                            
Rate, basis spread on variable rate [9],[10],[17] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12] $ 10,900,000                          
Amortized Cost [10] 10,900,000                          
Fair Value [3],[10] $ 10,900,000                          
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 4                            
Rate, basis spread on variable rate [9],[17] 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%              
Rate, PIK [9],[17] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 8,400,000                          
Amortized Cost [17] 8,400,000                          
Fair Value [3],[17] $ 8,300,000                          
Investment, Identifier [Axis]: Galway Partners Holdings LLC, Insurance 4 | Maximum                            
Rate, PIK [9],[17] 1.30% 1.30% 1.30% 1.30% 1.30% 1.30% 1.30%              
Investment, Identifier [Axis]: General Datatech LP, Software & Services                            
Rate, basis spread on variable rate 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [9],[10],[14],[19],[20],[43] 6.25% [4],[11],[16],[21],[22],[42] 6.25% [4],[11],[16],[21],[22],[42] 6.25% [4],[11],[16],[21],[22],[42] 6.25% [4],[11],[16],[21],[22],[42] 6.25% [4],[11],[16],[21],[22],[42] 6.25% [4],[11],[16],[21],[22],[42]  
Floor 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42]  
Principal Amount $ 129,800,000 [10],[12],[14],[19],[20],[43]             $ 131,600,000 [4],[13],[16],[21],[22],[42]            
Amortized Cost 129,000,000.0 [10],[14],[19],[20],[43]             130,700,000 [4],[16],[21],[22],[42]            
Fair Value $ 127,900,000 [3],[10],[14],[19],[20],[43]             $ 128,500,000 [4],[5],[16],[21],[22],[42]            
Investment, Identifier [Axis]: Gigamon Inc, Software & Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [9],[10],[15] 5.75% [4],[11],[44] 5.75% [4],[11],[44] 5.75% [4],[11],[44] 5.75% [4],[11],[44] 5.75% [4],[11],[44] 5.75% [4],[11],[44]  
Floor 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [9],[10],[15] 1.00% [4],[44] 1.00% [4],[44] 1.00% [4],[44] 1.00% [4],[44] 1.00% [4],[44] 1.00% [4],[44]  
Principal Amount $ 105,900,000 [10],[12],[15]             $ 106,100,000 [4],[13],[44]            
Amortized Cost 105,100,000 [10],[15]             105,400,000 [4],[44]            
Fair Value $ 105,900,000 [3],[10],[15]             $ 105,600,000 [4],[5],[44]            
Investment, Identifier [Axis]: Gigamon Inc, Software & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 9,300,000 [12],[17]             $ 9,300,000 [13],[18]            
Amortized Cost 9,300,000 [17]             9,300,000 [18]            
Fair Value $ 9,300,000 [3],[17]             $ 9,300,000 [5],[18]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Preferred Stock, Commercial & Professional Services 1                            
Principal (in shares) | shares 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [10],[12],[24],[53],[58] 149,494,590 [4],[13],[29],[54],[55] 149,494,590 [4],[13],[29],[54],[55] 149,494,590 [4],[13],[29],[54],[55] 149,494,590 [4],[13],[29],[54],[55] 149,494,590 [4],[13],[29],[54],[55] 149,494,590 [4],[13],[29],[54],[55]  
Amortized Cost $ 69,400,000 [10],[24],[53],[58]             $ 69,400,000 [4],[29],[54],[55]            
Fair Value $ 0 [3],[10],[24],[53],[58]             $ 0 [4],[5],[29],[54],[55]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Preferred Stock, Commercial & Professional Services 2                            
Rate, PIK 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55]  
Principal Amount $ 505,600,000 [10],[12],[24],[25],[53],[58]             $ 494,500,000 [4],[13],[29],[30],[54],[55]            
Amortized Cost 309,400,000 [10],[24],[25],[53],[58]             309,400,000 [4],[29],[30],[54],[55]            
Fair Value $ 256,600,000 [3],[10],[24],[25],[53],[58]             $ 256,500,000 [4],[5],[29],[30],[54],[55]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Preferred Stock, Commercial & Professional Services 2 | Maximum                            
Rate, PIK 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [9],[10],[24],[25],[53],[58] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55] 9.00% [4],[11],[29],[30],[54],[55]  
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 1                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Principal Amount $ 19,400,000 [10],[12],[27],[53],[58]             $ 18,700,000 [4],[6],[13],[54],[55]            
Amortized Cost 16,300,000 [10],[27],[53],[58]             15,600,000 [4],[6],[54],[55]            
Fair Value $ 19,400,000 [3],[10],[27],[53],[58]             $ 18,700,000 [4],[5],[6],[54],[55]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 1 | Maximum                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 2                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Principal Amount $ 14,200,000 [10],[12],[27],[53],[58]             $ 13,700,000 [4],[6],[13],[54],[55]            
Amortized Cost 11,800,000 [10],[27],[53],[58]             11,200,000 [4],[6],[54],[55]            
Fair Value $ 14,200,000 [3],[10],[27],[53],[58]             $ 13,700,000 [4],[5],[6],[54],[55]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 2 | Maximum                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 3                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Principal Amount $ 1,700,000 [10],[12],[27],[53],[58]             $ 1,600,000 [4],[6],[13],[54],[55]            
Amortized Cost 1,400,000 [10],[27],[53],[58]             1,300,000 [4],[6],[54],[55]            
Fair Value $ 1,700,000 [3],[10],[27],[53],[58]             $ 1,600,000 [4],[5],[6],[54],[55]            
Investment, Identifier [Axis]: Global Jet Capital LLC, Structured Mezzanine, Commercial & Professional Services 3 | Maximum                            
Rate, PIK 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [9],[10],[27],[53],[58] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55] 15.00% [4],[6],[11],[54],[55]  
Investment, Identifier [Axis]: Global Lending Services LLC, Private Equity, Financial Services 1                            
Principal (in shares) | shares 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,599,540 [10],[12],[27] 3,839,633 [4],[6],[13] 3,839,633 [4],[6],[13] 3,839,633 [4],[6],[13] 3,839,633 [4],[6],[13] 3,839,633 [4],[6],[13] 3,839,633 [4],[6],[13]  
Amortized Cost $ 4,200,000 [10],[27]             $ 4,400,000 [4],[6]            
Fair Value $ 4,300,000 [3],[10],[27]             $ 4,500,000 [4],[5],[6]            
Investment, Identifier [Axis]: Global Lending Services LLC, Private Equity, Financial Services 2                            
Principal (in shares) | shares 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 6,934,286 [10],[12],[27] 7,193,212 [4],[6],[13] 7,193,212 [4],[6],[13] 7,193,212 [4],[6],[13] 7,193,212 [4],[6],[13] 7,193,212 [4],[6],[13] 7,193,212 [4],[6],[13]  
Amortized Cost $ 6,900,000 [10],[27]             $ 7,200,000 [4],[6]            
Fair Value $ 6,600,000 [3],[10],[27]             $ 6,900,000 [4],[5],[6]            
Investment, Identifier [Axis]: Global Lending Services LLC, Private Equity, Financial Services 3                            
Principal (in shares) | shares 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 40,174,500 [10],[12],[27] 32,850,984 [4],[6],[13] 32,850,984 [4],[6],[13] 32,850,984 [4],[6],[13] 32,850,984 [4],[6],[13] 32,850,984 [4],[6],[13] 32,850,984 [4],[6],[13]  
Amortized Cost $ 40,200,000 [10],[27]             $ 32,900,000 [4],[6]            
Fair Value 42,500,000 [3],[10],[27]             34,500,000 [4],[5],[6]            
Investment, Identifier [Axis]: Gracent LLC                            
Fair Value 25,600,000             24,500,000           0
Investment, Identifier [Axis]: Gracent LLC, Class A Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: Gracent LLC, Class A Common Stock, Health Care Equipment & Services                            
Principal (in shares) | shares 250 [24],[32],[46] 250 [24],[32],[46] 250 [24],[32],[46] 250 [24],[32],[46] 250 [24],[32],[46] 250 [24],[32],[46] 250 [24],[32],[46] 250 [29],[33],[52] 250 [29],[33],[52] 250 [29],[33],[52] 250 [29],[33],[52] 250 [29],[33],[52] 250 [29],[33],[52]  
Amortized Cost $ 0 [24],[32],[46]             $ 0 [29],[33],[52]            
Fair Value $ 0 [3],[24],[32],[46]             $ 0 [5],[29],[33],[52]            
Investment, Identifier [Axis]: Gracent LLC, Health Care Equipment & Services                            
Variable rate, PIK 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [9],[10],[32] 12.00% [4],[11],[33] 12.00% [4],[11],[33] 12.00% [4],[11],[33] 12.00% [4],[11],[33] 12.00% [4],[11],[33] 12.00% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 29,100,000 [10],[12],[32]             $ 28,300,000 [4],[13],[33]            
Amortized Cost 25,500,000 [10],[32]             24,700,000 [4],[33]            
Fair Value $ 25,600,000 [3],[10],[32]             $ 24,500,000 [4],[5],[33]            
Investment, Identifier [Axis]: Gracent LLC, Health Care Equipment & Services | Maximum                            
Rate, PIK [9],[10],[32] 12.00% 12.00% 12.00% 12.00% 12.00% 12.00% 12.00%              
Variable rate, PIK [4],[11],[33]               12.00% 12.00% 12.00% 12.00% 12.00% 12.00%  
Investment, Identifier [Axis]: Gracent LLC, Preferred Equity                            
Fair Value $ 3,300,000             $ 3,800,000           0
Investment, Identifier [Axis]: Gracent LLC, Preferred Equity, Health Care Equipment & Services                            
Principal (in shares) | shares 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [24],[32],[46] 1,000 [29],[33],[52] 1,000 [29],[33],[52] 1,000 [29],[33],[52] 1,000 [29],[33],[52] 1,000 [29],[33],[52] 1,000 [29],[33],[52]  
Amortized Cost $ 8,200,000 [24],[32],[46]             $ 8,200,000 [29],[33],[52]            
Fair Value 3,300,000 [3],[24],[32],[46]             3,800,000 [5],[29],[33],[52]            
Investment, Identifier [Axis]: Gracent LLC, Preferred Stock A                            
Fair Value 0             $ 0           0
Investment, Identifier [Axis]: Gracent LLC, Preferred Stock A, Health Care Equipment & Services                            
Principal (in shares) | shares [29],[33],[52]               500 500 500 500 500 500  
Amortized Cost [29],[33],[52]               $ 8,000,000.0            
Fair Value [5],[29],[33],[52]               0            
Investment, Identifier [Axis]: Gracent LLC, Preferred Stock B                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: Gracent LLC, Preferred Stock B, Health Care Equipment & Services                            
Principal (in shares) | shares 745 [24],[32],[46] 745 [24],[32],[46] 745 [24],[32],[46] 745 [24],[32],[46] 745 [24],[32],[46] 745 [24],[32],[46] 745 [24],[32],[46] 745 [29],[33],[52] 745 [29],[33],[52] 745 [29],[33],[52] 745 [29],[33],[52] 745 [29],[33],[52] 745 [29],[33],[52]  
Amortized Cost $ 0 [24],[32],[46]             $ 0 [29],[33],[52]            
Fair Value $ 0 [3],[24],[32],[46]             0 [5],[29],[33],[52]            
Investment, Identifier [Axis]: Granicus Inc, Software & Services 1                            
Rate, basis spread on variable rate [9],[10] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Floor [9],[10] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12] $ 16,100,000                          
Amortized Cost [10] 16,000,000.0                          
Fair Value [3],[10] $ 16,000,000.0                          
Investment, Identifier [Axis]: Granicus Inc, Software & Services 2                            
Rate, basis spread on variable rate [9],[17] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 2,300,000                          
Amortized Cost [17] 2,300,000                          
Fair Value [3],[17] $ 2,300,000                          
Investment, Identifier [Axis]: Granicus Inc, Software & Services 3                            
Rate, basis spread on variable rate [9],[17] 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%              
Rate, PIK [9],[17] 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 2,400,000                          
Amortized Cost [17] 2,400,000                          
Fair Value [3],[17] $ 2,400,000                          
Investment, Identifier [Axis]: Granicus Inc, Software & Services 3 | Maximum                            
Rate, PIK [9],[17] 2.50% 2.50% 2.50% 2.50% 2.50% 2.50% 2.50%              
Investment, Identifier [Axis]: GreenSky Holdings LLC, Private Equity                            
Fair Value $ 10,700,000             0            
Investment, Identifier [Axis]: GreenSky Holdings LLC, Private Equity, Financial Services                            
Principal (in shares) | shares [10],[12],[24],[32] 10,662,084 10,662,084 10,662,084 10,662,084 10,662,084 10,662,084 10,662,084              
Amortized Cost [10],[24],[32] $ 10,700,000                          
Fair Value [3],[10],[24],[32] 10,700,000                          
Investment, Identifier [Axis]: GreenSky Holdings LLC, Term Loan                            
Fair Value $ 32,000,000.0             $ 0            
Investment, Identifier [Axis]: GreenSky Holdings LLC, Term Loan, Financial Services 1                            
Rate, PIK [9],[10],[32] 9.30% 9.30% 9.30% 9.30% 9.30% 9.30% 9.30%              
Principal Amount [10],[12],[32] $ 32,000,000.0                          
Amortized Cost [10],[32] 32,000,000.0                          
Fair Value [3],[10],[32] $ 32,000,000.0                          
Investment, Identifier [Axis]: GreenSky Holdings LLC, Term Loan, Financial Services 1 | Maximum                            
Rate, PIK [9],[10],[32] 9.30% 9.30% 9.30% 9.30% 9.30% 9.30% 9.30%              
Investment, Identifier [Axis]: GreenSky Holdings LLC, Term Loan, Financial Services 2                            
Rate, PIK [9],[10],[17],[32] 9.30% 9.30% 9.30% 9.30% 9.30% 9.30% 9.30%              
Principal Amount [10],[12],[17],[32] $ 3,000,000.0                          
Amortized Cost [10],[17],[32] 3,000,000.0                          
Fair Value [3],[10],[17],[32] $ 3,000,000.0                          
Investment, Identifier [Axis]: GreenSky Holdings LLC, Term Loan, Financial Services 2 | Maximum                            
Rate, PIK [9],[10],[17],[32] 9.30% 9.30% 9.30% 9.30% 9.30% 9.30% 9.30%              
Investment, Identifier [Axis]: Greystone Equity Member Corp, Financial Services                            
Rate, basis spread on variable rate [4],[6],[11]               7.25% 7.25% 7.25% 7.25% 7.25% 7.25%  
Floor [4],[6]               3.80% 3.80% 3.80% 3.80% 3.80% 3.80%  
Principal Amount [4],[6],[13]               $ 194,800,000            
Amortized Cost [4],[6]               187,500,000            
Fair Value [4],[5],[6]               $ 194,800,000            
Investment, Identifier [Axis]: HKA, Commercial & Professional Services                            
Rate, basis spread on variable rate 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [9],[10],[27],[43] 5.75% [4],[6],[11],[42] 5.75% [4],[6],[11],[42] 5.75% [4],[6],[11],[42] 5.75% [4],[6],[11],[42] 5.75% [4],[6],[11],[42] 5.75% [4],[6],[11],[42]  
Rate, PIK 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [9],[10],[27],[43] 0.00% [4],[6],[11],[42] 0.00% [4],[6],[11],[42] 0.00% [4],[6],[11],[42] 0.00% [4],[6],[11],[42] 0.00% [4],[6],[11],[42] 0.00% [4],[6],[11],[42]  
Floor 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [9],[10],[27],[43] 0.50% [4],[6],[42] 0.50% [4],[6],[42] 0.50% [4],[6],[42] 0.50% [4],[6],[42] 0.50% [4],[6],[42] 0.50% [4],[6],[42]  
Principal Amount $ 4,600,000 [10],[12],[27],[43]             $ 4,600,000 [4],[6],[13],[42]            
Amortized Cost 4,500,000 [10],[27],[43]             4,500,000 [4],[6],[42]            
Fair Value $ 4,500,000 [3],[10],[27],[43]             $ 4,400,000 [4],[5],[6],[42]            
Investment, Identifier [Axis]: HKA, Commercial & Professional Services | Maximum                            
Rate, PIK 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [9],[10],[27],[43] 1.80% [4],[6],[11],[42] 1.80% [4],[6],[11],[42] 1.80% [4],[6],[11],[42] 1.80% [4],[6],[11],[42] 1.80% [4],[6],[11],[42] 1.80% [4],[6],[11],[42]  
Investment, Identifier [Axis]: HM Dunn Co Inc 1                            
Fair Value $ 35,600,000             $ 35,800,000           35,600,000
Investment, Identifier [Axis]: HM Dunn Co Inc 2                            
Fair Value $ 1,000,000.0             $ 1,000,000.0           0
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33]  
Rate, PIK 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 35,600,000 [10],[12],[32]             $ 35,800,000 [4],[13],[33]            
Amortized Cost 35,600,000 [10],[32]             35,800,000 [4],[33]            
Fair Value $ 35,600,000 [3],[10],[32]             $ 35,800,000 [4],[5],[33]            
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 1 | Maximum                            
Rate, PIK 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33]  
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33]  
Rate, PIK 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [9],[10],[32] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33] 0.00% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 1,000,000.0 [10],[12],[32]             $ 1,000,000.0 [4],[13],[33]            
Amortized Cost 1,000,000.0 [10],[32]             1,000,000.0 [4],[33]            
Fair Value $ 1,000,000.0 [3],[10],[32]             $ 1,000,000.0 [4],[5],[33]            
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 2 | Maximum                            
Rate, PIK 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [9],[10],[32] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33] 6.00% [4],[11],[33]  
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 3                            
Rate, basis spread on variable rate 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33]  
Rate, PIK 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [9],[10],[17],[32] 0.00% [11],[18],[33] 0.00% [11],[18],[33] 0.00% [11],[18],[33] 0.00% [11],[18],[33] 0.00% [11],[18],[33] 0.00% [11],[18],[33]  
Floor 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [9],[10],[17],[32] 1.00% [18],[33] 1.00% [18],[33] 1.00% [18],[33] 1.00% [18],[33] 1.00% [18],[33] 1.00% [18],[33]  
Principal Amount $ 4,000,000.0 [10],[12],[17],[32]             $ 1,000,000.0 [13],[18],[33]            
Amortized Cost 4,000,000.0 [10],[17],[32]             1,000,000.0 [18],[33]            
Fair Value $ 4,000,000.0 [3],[10],[17],[32]             $ 1,000,000.0 [5],[18],[33]            
Investment, Identifier [Axis]: HM Dunn Co Inc, Capital Goods 3 | Maximum                            
Rate, PIK 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [9],[10],[17],[32] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33] 6.00% [11],[18],[33]  
Investment, Identifier [Axis]: HM Dunn Co Inc, Preferred Stock, Series A                            
Fair Value $ 24,200,000             $ 25,100,000           16,900,000
Investment, Identifier [Axis]: HM Dunn Co Inc, Preferred Stock, Series A, Capital Goods                            
Principal (in shares) | shares 85,385 [10],[24] 85,385 [10],[24] 85,385 [10],[24] 85,385 [10],[24] 85,385 [10],[24] 85,385 [10],[24] 85,385 [10],[24] 85,385 [4],[29],[33],[34] 85,385 [4],[29],[33],[34] 85,385 [4],[29],[33],[34] 85,385 [4],[29],[33],[34] 85,385 [4],[29],[33],[34] 85,385 [4],[29],[33],[34]  
Amortized Cost $ 7,100,000 [10],[24]             $ 7,100,000 [4],[29],[33],[34]            
Fair Value 24,200,000 [3],[10],[24]             25,100,000 [4],[5],[29],[33],[34]            
Investment, Identifier [Axis]: HM Dunn Co Inc, Preferred Stock, Series B                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: HM Dunn Co Inc, Preferred Stock, Series B, Capital Goods                            
Principal (in shares) | shares 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [10],[24],[32],[35] 15,000 [4],[29],[33],[34] 15,000 [4],[29],[33],[34] 15,000 [4],[29],[33],[34] 15,000 [4],[29],[33],[34] 15,000 [4],[29],[33],[34] 15,000 [4],[29],[33],[34]  
Amortized Cost $ 0 [10],[24],[32],[35]             $ 0 [4],[29],[33],[34]            
Fair Value $ 0 [3],[10],[24],[32],[35]             $ 0 [4],[5],[29],[33],[34]            
Investment, Identifier [Axis]: Harvey Industries Inc, Common Stock, Capital Goods                            
Principal (in shares) | shares 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [10],[24] 5,000,000 [4],[29],[33] 5,000,000 [4],[29],[33] 5,000,000 [4],[29],[33] 5,000,000 [4],[29],[33] 5,000,000 [4],[29],[33] 5,000,000 [4],[29],[33]  
Amortized Cost $ 2,200,000 [10],[24]             $ 2,200,000 [4],[29],[33]            
Fair Value $ 9,500,000 [3],[10],[24]             $ 7,300,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 1                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 12,500,000 [10],[12]             $ 6,800,000 [4],[13]            
Amortized Cost 12,400,000 [10]             6,700,000 [4]            
Fair Value $ 12,500,000 [3],[10]             $ 6,800,000 [4],[5]            
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 2                            
Rate, basis spread on variable rate 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [9],[10],[14],[19],[43] 5.75% [4],[11],[16],[21],[42] 5.75% [4],[11],[16],[21],[42] 5.75% [4],[11],[16],[21],[42] 5.75% [4],[11],[16],[21],[42] 5.75% [4],[11],[16],[21],[42] 5.75% [4],[11],[16],[21],[42]  
Floor 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [9],[10],[14],[19],[43] 1.00% [4],[16],[21],[42] 1.00% [4],[16],[21],[42] 1.00% [4],[16],[21],[42] 1.00% [4],[16],[21],[42] 1.00% [4],[16],[21],[42] 1.00% [4],[16],[21],[42]  
Principal Amount $ 94,000,000.0 [10],[12],[14],[19],[43]             $ 94,300,000 [4],[13],[16],[21],[42]            
Amortized Cost 89,400,000 [10],[14],[19],[43]             89,300,000 [4],[16],[21],[42]            
Fair Value $ 94,000,000.0 [3],[10],[14],[19],[43]             $ 94,300,000 [4],[5],[16],[21],[42]            
Investment, Identifier [Axis]: Heniff Transportation Systems LLC, Transportation 3                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 5,300,000 [10],[12],[17]             $ 11,000,000.0 [13],[18]            
Amortized Cost 5,300,000 [10],[17]             11,000,000.0 [18]            
Fair Value $ 5,300,000 [3],[10],[17]             $ 11,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Heritage Environmental Services Inc, Commercial & Professional Services 1                            
Rate, basis spread on variable rate [9],[10],[19] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[10],[19] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[19] $ 53,300,000                          
Amortized Cost [10],[19] 53,000,000.0                          
Fair Value [3],[10],[19] $ 53,000,000.0                          
Investment, Identifier [Axis]: Heritage Environmental Services Inc, Commercial & Professional Services 2                            
Rate, basis spread on variable rate [9],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 7,300,000                          
Amortized Cost [17] 7,300,000                          
Fair Value [3],[17] $ 7,300,000                          
Investment, Identifier [Axis]: Hibu Inc, Commercial & Professional Services                            
Rate, basis spread on variable rate [4],[11],[16],[21],[22],[42]               6.25% 6.25% 6.25% 6.25% 6.25% 6.25%  
Floor [4],[16],[21],[22],[42]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[13],[16],[21],[22],[42]               $ 94,500,000            
Amortized Cost [4],[16],[21],[22],[42]               91,200,000            
Fair Value [4],[5],[16],[21],[22],[42]               $ 95,400,000            
Investment, Identifier [Axis]: Hibu Inc, Commercial & Professional Services 1                            
Rate, basis spread on variable rate [9],[10],[14],[19],[20],[43] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Floor [9],[10],[14],[19],[20],[43] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[14],[19],[20],[43] $ 93,200,000                          
Amortized Cost [10],[14],[19],[20],[43] 90,100,000                          
Fair Value [3],[10],[14],[19],[20],[43] $ 93,200,000                          
Investment, Identifier [Axis]: Hibu Inc, Commercial & Professional Services 2                            
Rate, basis spread on variable rate [9],[10],[19] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Floor [9],[10],[19] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[19] $ 24,900,000                          
Amortized Cost [10],[19] 24,700,000                          
Fair Value [3],[10],[19] $ 24,700,000                          
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance 1                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 17,100,000 [10],[12]             $ 10,300,000 [4],[13]            
Amortized Cost 16,800,000 [10]             10,200,000 [4]            
Fair Value $ 17,200,000 [3],[10]             $ 10,200,000 [4],[5]            
Investment, Identifier [Axis]: Higginbotham Insurance Agency Inc, Insurance 2                            
Rate, basis spread on variable rate 4.75% [9],[17] 4.75% [9],[17] 4.75% [9],[17] 4.75% [9],[17] 4.75% [9],[17] 4.75% [9],[17] 4.75% [9],[17] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 18,200,000 [12],[17]             $ 6,900,000 [4],[13]            
Amortized Cost 18,200,000 [17]             6,600,000 [4]            
Fair Value $ 18,000,000.0 [3],[17]             $ 6,800,000 [4],[5]            
Investment, Identifier [Axis]: Highgate Hotels Inc, Consumer Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 33,900,000 [10],[12]             $ 34,000,000.0 [4],[13]            
Amortized Cost 33,600,000 [10]             33,600,000 [4]            
Fair Value $ 33,500,000 [3],[10]             $ 33,600,000 [4],[5]            
Investment, Identifier [Axis]: Highgate Hotels Inc, Consumer Services 2                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 4,200,000 [12],[17]             $ 4,200,000 [13],[18]            
Amortized Cost 4,200,000 [17]             4,200,000 [18]            
Fair Value 4,200,000 [3],[17]             4,200,000 [5],[18]            
Investment, Identifier [Axis]: Hilding Anders 1                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders 2                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders 3                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders, Class A Common Stock                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders, Class B Common Stock                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders, Class C Common Stock                            
Fair Value               0           0
Investment, Identifier [Axis]: Hilding Anders, Equity Options                            
Fair Value               0           0
Investment, Identifier [Axis]: Home Partners JV 2, Private Equity 1                            
Fair Value 200,000             200,000           200,000
Investment, Identifier [Axis]: Home Partners JV 2, Private Equity 2                            
Fair Value $ 4,100,000             $ 4,200,000           5,000,000.0
Investment, Identifier [Axis]: Home Partners JV 2, Private Equity, Equity Real Estate Investment Trusts (REITs) 1                            
Principal (in shares) | shares 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [10],[12],[24],[27],[37] 4,471,509 [4],[6],[13],[29],[38] 4,471,509 [4],[6],[13],[29],[38] 4,471,509 [4],[6],[13],[29],[38] 4,471,509 [4],[6],[13],[29],[38] 4,471,509 [4],[6],[13],[29],[38] 4,471,509 [4],[6],[13],[29],[38]  
Amortized Cost $ 4,400,000 [10],[24],[27],[37]             $ 4,400,000 [4],[6],[29],[38]            
Fair Value $ 4,100,000 [3],[10],[24],[27],[37]             $ 4,200,000 [4],[5],[6],[29],[38]            
Investment, Identifier [Axis]: Home Partners JV 2, Private Equity, Equity Real Estate Investment Trusts (REITs) 2                            
Principal (in shares) | shares 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [10],[12],[24],[27],[37] 168,710 [4],[6],[13],[29],[38] 168,710 [4],[6],[13],[29],[38] 168,710 [4],[6],[13],[29],[38] 168,710 [4],[6],[13],[29],[38] 168,710 [4],[6],[13],[29],[38] 168,710 [4],[6],[13],[29],[38]  
Amortized Cost $ 200,000 [10],[24],[27],[37]             $ 200,000 [4],[6],[29],[38]            
Fair Value 200,000 [3],[10],[24],[27],[37]             200,000 [4],[5],[6],[29],[38]            
Investment, Identifier [Axis]: Home Partners JV 2, Structured Mezzanine                            
Fair Value $ 11,700,000             $ 11,400,000           10,200,000
Investment, Identifier [Axis]: Home Partners JV 2, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)                            
Rate, PIK 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38]  
Principal Amount $ 11,700,000 [10],[12],[27],[37]             $ 11,400,000 [4],[6],[13],[38]            
Amortized Cost 11,700,000 [10],[27],[37]             11,400,000 [4],[6],[38]            
Fair Value $ 11,700,000 [3],[10],[27],[37]             $ 11,400,000 [4],[5],[6],[38]            
Investment, Identifier [Axis]: Home Partners JV 2, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs) | Maximum                            
Rate, PIK 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [9],[10],[27],[37] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38] 11.00% [4],[6],[11],[38]  
Investment, Identifier [Axis]: Imagine Communications Corp, Common Stock, Media & Entertainment                            
Principal (in shares) | shares 33,034 [10],[24] 33,034 [10],[24] 33,034 [10],[24] 33,034 [10],[24] 33,034 [10],[24] 33,034 [10],[24] 33,034 [10],[24] 33,034 [4],[29] 33,034 [4],[29] 33,034 [4],[29] 33,034 [4],[29] 33,034 [4],[29] 33,034 [4],[29]  
Amortized Cost $ 3,800,000 [10],[24]             $ 3,800,000 [4],[29]            
Fair Value $ 2,700,000 [3],[10],[24]             $ 2,400,000 [4],[5],[29]            
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 71,100,000 [10],[12]             $ 71,300,000 [4],[13]            
Amortized Cost 69,800,000 [10]             69,900,000 [4]            
Fair Value $ 71,000,000.0 [3],[10]             $ 69,900,000 [4],[5]            
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 5,800,000 [10],[12],[17]             $ 5,800,000 [13],[18]            
Amortized Cost 5,800,000 [10],[17]             5,800,000 [18]            
Fair Value $ 5,800,000 [3],[10],[17]             $ 5,700,000 [5],[18]            
Investment, Identifier [Axis]: Individual FoodService, Capital Goods 3                            
Rate, basis spread on variable rate 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 5,900,000 [12],[17]             $ 5,900,000 [13],[18]            
Amortized Cost 5,900,000 [17]             5,900,000 [18]            
Fair Value $ 5,900,000 [3],[17]             $ 5,800,000 [5],[18]            
Investment, Identifier [Axis]: Industria Chimica Emiliana Srl, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 71.2 [10],[12],[27]             € 71.2 [4],[6],[13]      
Amortized Cost $ 82,500,000 [10],[27]             $ 82,300,000 [4],[6]            
Fair Value $ 74,000,000.0 [3],[10],[27]             $ 75,400,000 [4],[5],[6]            
Investment, Identifier [Axis]: Industria Chimica Emiliana Srl, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 17.6 [10],[12],[27]             € 17.6 [4],[6],[13]      
Amortized Cost $ 20,600,000 [10],[27]             $ 20,600,000 [4],[6]            
Fair Value $ 18,300,000 [3],[10],[27]             $ 18,700,000 [4],[5],[6]            
Investment, Identifier [Axis]: Industry City TI Lessor LP, Consumer Services                            
Rate, basis spread on variable rate [4],[11],[34]               10.80% 10.80% 10.80% 10.80% 10.80% 10.80%  
Rate, stated interest rate [9],[10],[35] 10.80% 10.80% 10.80% 10.80% 10.80% 10.80% 10.80%              
Rate, PIK 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34]  
Floor [4],[34]                
Principal Amount $ 19,600,000 [10],[12],[35]             $ 20,900,000 [4],[13],[34]            
Amortized Cost 19,600,000 [10],[35]             20,900,000 [4],[34]            
Fair Value $ 20,100,000 [3],[10],[35]             $ 21,400,000 [4],[5],[34]            
Investment, Identifier [Axis]: Industry City TI Lessor LP, Consumer Services | Maximum                            
Rate, PIK 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34] 1.00% [4],[11],[34]  
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [9],[10],[15] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44] 6.00% [4],[11],[44]  
Floor 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [9],[10],[15] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44] 0.80% [4],[44]  
Principal Amount $ 175,900,000 [10],[12],[15]             $ 176,400,000 [4],[13],[44]            
Amortized Cost 174,700,000 [10],[15]             175,100,000 [4],[44]            
Fair Value $ 175,900,000 [3],[10],[15]             $ 176,400,000 [4],[5],[44]            
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 47,900,000 [12],[17]             $ 21,100,000 [13],[18]            
Amortized Cost 47,900,000 [17]             21,100,000 [18]            
Fair Value $ 47,900,000 [3],[17]             $ 21,100,000 [5],[18]            
Investment, Identifier [Axis]: Insight Global LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate [11],[18]               6.00% 6.00% 6.00% 6.00% 6.00% 6.00%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[18]               $ 26,800,000            
Amortized Cost [18]               26,800,000            
Fair Value [5],[18]               $ 26,800,000            
Investment, Identifier [Axis]: Insightsoftware.Com Inc, Software & Services 1                            
Rate, basis spread on variable rate [9],[10] 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%              
Floor [9],[10] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12] $ 2,400,000                          
Amortized Cost [10] 2,400,000                          
Fair Value [3],[10] $ 2,400,000                          
Investment, Identifier [Axis]: Insightsoftware.Com Inc, Software & Services 2                            
Rate, basis spread on variable rate [9],[17] 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 21,300,000                          
Amortized Cost [17] 21,300,000                          
Fair Value [3],[17] $ 21,300,000                          
Investment, Identifier [Axis]: Insightsoftware.Com Inc, Software & Services 3                            
Rate, basis spread on variable rate [9],[17] 5.00% 5.00% 5.00% 5.00% 5.00% 5.00% 5.00%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 5,300,000                          
Amortized Cost [17] 5,300,000                          
Fair Value [3],[17] $ 5,300,000                          
Investment, Identifier [Axis]: Integrated Power Services LLC, Commercial & Professional Services                            
Rate, basis spread on variable rate [9],[10],[59] 7.50% 7.50% 7.50% 7.50% 7.50% 7.50% 7.50%              
Floor [9],[10],[59] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[59] $ 46,300,000                          
Amortized Cost [10],[59] 45,600,000                          
Fair Value [3],[10],[59] $ 45,600,000                          
Investment, Identifier [Axis]: Integrity Marketing Group LLC, Insurance 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 200,000 [10],[12]             $ 200,000 [4],[13]            
Amortized Cost 200,000 [10]             200,000 [4]            
Fair Value $ 200,000 [3],[10]             $ 200,000 [4],[5]            
Investment, Identifier [Axis]: Integrity Marketing Group LLC, Insurance 2                            
Rate, basis spread on variable rate 6.02% [9],[10] 6.02% [9],[10] 6.02% [9],[10] 6.02% [9],[10] 6.02% [9],[10] 6.02% [9],[10] 6.02% [9],[10] 6.02% [4],[11] 6.02% [4],[11] 6.02% [4],[11] 6.02% [4],[11] 6.02% [4],[11] 6.02% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 98,100,000 [10],[12]             $ 98,400,000 [4],[13]            
Amortized Cost 98,100,000 [10]             98,400,000 [4]            
Fair Value $ 98,100,000 [3],[10]             $ 98,200,000 [4],[5]            
Investment, Identifier [Axis]: Integrity Marketing Group LLC, Insurance 3                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 2,300,000 [10],[12],[17]             $ 2,300,000 [13],[18]            
Amortized Cost 2,300,000 [10],[17]             2,300,000 [18]            
Fair Value $ 2,300,000 [3],[10],[17]             $ 2,300,000 [5],[18]            
Investment, Identifier [Axis]: Integrity Marketing Group LLC, Insurance 4                            
Rate, basis spread on variable rate 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 100,000 [12],[17]             $ 100,000 [13],[18]            
Amortized Cost 100,000 [17]             100,000 [18]            
Fair Value $ 100,000 [3],[17]             $ 100,000 [5],[18]            
Investment, Identifier [Axis]: J S Held LLC, Insurance 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [9],[10],[15],[19] 5.50% [4],[11],[21],[44] 5.50% [4],[11],[21],[44] 5.50% [4],[11],[21],[44] 5.50% [4],[11],[21],[44] 5.50% [4],[11],[21],[44] 5.50% [4],[11],[21],[44]  
Floor 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [9],[10],[15],[19] 1.00% [4],[21],[44] 1.00% [4],[21],[44] 1.00% [4],[21],[44] 1.00% [4],[21],[44] 1.00% [4],[21],[44] 1.00% [4],[21],[44]  
Principal Amount $ 150,900,000 [10],[12],[15],[19]             $ 86,000,000.0 [4],[13],[21],[44]            
Amortized Cost 150,200,000 [10],[15],[19]             85,200,000 [4],[21],[44]            
Fair Value $ 150,400,000 [3],[10],[15],[19]             $ 85,400,000 [4],[5],[21],[44]            
Investment, Identifier [Axis]: J S Held LLC, Insurance 2                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 13,800,000 [10],[12]             $ 5,100,000 [4],[13]            
Amortized Cost 13,700,000 [10]             5,000,000.0 [4]            
Fair Value $ 13,800,000 [3],[10]             $ 5,000,000.0 [4],[5]            
Investment, Identifier [Axis]: J S Held LLC, Insurance 3                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [9],[10],[15],[17],[19] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21]  
Floor 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [9],[10],[15],[17],[19] 1.00% [4],[21] 1.00% [4],[21] 1.00% [4],[21] 1.00% [4],[21] 1.00% [4],[21] 1.00% [4],[21]  
Principal Amount $ 500,000 [10],[12],[15],[17],[19]             $ 63,200,000 [4],[13],[21]            
Amortized Cost 500,000 [10],[15],[17],[19]             63,200,000 [4],[21]            
Fair Value $ 500,000 [3],[10],[15],[17],[19]             $ 62,800,000 [4],[5],[21]            
Investment, Identifier [Axis]: J S Held LLC, Insurance 4                            
Rate, basis spread on variable rate 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [9],[10],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 300,000 [10],[12],[17]             $ 9,000,000.0 [13],[18]            
Amortized Cost 300,000 [10],[17]             9,000,000.0 [18]            
Fair Value 300,000 [3],[10],[17]             $ 9,000,000.0 [5],[18]            
Investment, Identifier [Axis]: J S Held LLC, Insurance 5                            
Rate, basis spread on variable rate [11],[18]               5.50% 5.50% 5.50% 5.50% 5.50% 5.50%  
Floor [18]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [13],[18]               $ 2,500,000            
Amortized Cost [18]               2,500,000            
Fair Value [5],[18]               2,500,000            
Investment, Identifier [Axis]: JW Aluminum Co                            
Fair Value 78,500,000             77,100,000           78,100,000
Investment, Identifier [Axis]: JW Aluminum Co, Common Stock                            
Fair Value $ 2,500,000             $ 2,500,000           2,400,000
Investment, Identifier [Axis]: JW Aluminum Co, Common Stock, Materials                            
Principal (in shares) | shares 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [10],[24],[32],[53],[58] 2,105 [4],[29],[33],[54],[55] 2,105 [4],[29],[33],[54],[55] 2,105 [4],[29],[33],[54],[55] 2,105 [4],[29],[33],[54],[55] 2,105 [4],[29],[33],[54],[55] 2,105 [4],[29],[33],[54],[55]  
Amortized Cost $ 0.0 [10],[24],[32],[53],[58]             $ 0 [4],[29],[33],[54],[55]            
Fair Value $ 2,500,000 [3],[10],[24],[32],[53],[58]             $ 2,500,000 [4],[5],[29],[33],[54],[55]            
Investment, Identifier [Axis]: JW Aluminum Co, Materials                            
Rate, stated interest rate 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [9],[10],[32],[35],[40] 10.30% [4],[11],[33],[34],[41] 10.30% [4],[11],[33],[34],[41] 10.30% [4],[11],[33],[34],[41] 10.30% [4],[11],[33],[34],[41] 10.30% [4],[11],[33],[34],[41] 10.30% [4],[11],[33],[34],[41]  
Principal Amount $ 76,500,000 [10],[12],[32],[35],[40]             $ 76,500,000 [4],[13],[33],[34],[41]            
Amortized Cost 75,900,000 [10],[32],[35],[40]             75,900,000 [4],[33],[34],[41]            
Fair Value 78,500,000 [3],[10],[32],[35],[40]             77,100,000 [4],[5],[33],[34],[41]            
Investment, Identifier [Axis]: JW Aluminum Co, Preferred Stock                            
Fair Value $ 148,600,000             $ 148,700,000           112,500,000
Investment, Identifier [Axis]: JW Aluminum Co, Preferred Stock, Materials                            
Rate, PIK 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [9],[10],[24],[25],[32],[53],[58] 0.00% [4],[11],[29],[33],[54],[55] 0.00% [4],[11],[29],[33],[54],[55] 0.00% [4],[11],[29],[33],[54],[55] 0.00% [4],[11],[29],[33],[54],[55] 0.00% [4],[11],[29],[33],[54],[55] 0.00% [4],[11],[29],[33],[54],[55]  
Principal (in shares) | shares 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [10],[24],[25],[32],[53],[58] 15,279 [4],[29],[33],[54],[55] 15,279 [4],[29],[33],[54],[55] 15,279 [4],[29],[33],[54],[55] 15,279 [4],[29],[33],[54],[55] 15,279 [4],[29],[33],[54],[55] 15,279 [4],[29],[33],[54],[55]  
Amortized Cost $ 214,500,000 [10],[24],[25],[32],[53],[58]             $ 214,500,000 [4],[29],[33],[54],[55]            
Fair Value $ 148,600,000 [3],[10],[24],[25],[32],[53],[58]             $ 148,700,000 [4],[5],[29],[33],[54],[55]            
Investment, Identifier [Axis]: JW Aluminum Co, Preferred Stock, Materials | Maximum                            
Rate, PIK 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [9],[10],[24],[25],[32],[53],[58] 12.50% [4],[11],[29],[33],[54],[55] 12.50% [4],[11],[29],[33],[54],[55] 12.50% [4],[11],[29],[33],[54],[55] 12.50% [4],[11],[29],[33],[54],[55] 12.50% [4],[11],[29],[33],[54],[55] 12.50% [4],[11],[29],[33],[54],[55]  
Investment, Identifier [Axis]: Jet Edge International LLC, Structured Mezzanine, Transportation 1                            
Rate, stated interest rate 10.00% [9],[10] 10.00% [9],[10] 10.00% [9],[10] 10.00% [9],[10] 10.00% [9],[10] 10.00% [9],[10] 10.00% [9],[10] 10.00% [4],[11] 10.00% [4],[11] 10.00% [4],[11] 10.00% [4],[11] 10.00% [4],[11] 10.00% [4],[11]  
Rate, PIK 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11]  
Principal Amount $ 33,000,000.0 [10],[12]             $ 46,000,000.0 [4],[13]            
Amortized Cost 33,000,000.0 [10]             46,000,000.0 [4]            
Fair Value $ 33,700,000 [3],[10]             $ 46,900,000 [4],[5]            
Investment, Identifier [Axis]: Jet Edge International LLC, Structured Mezzanine, Transportation 1 | Maximum                            
Rate, PIK 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11] 2.00% [4],[11]  
Investment, Identifier [Axis]: Jet Edge International LLC, Structured Mezzanine, Transportation 2                            
Rate, stated interest rate 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [9],[10],[17] 10.00% [11],[18] 10.00% [11],[18] 10.00% [11],[18] 10.00% [11],[18] 10.00% [11],[18] 10.00% [11],[18]  
Rate, PIK 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18]  
Principal Amount $ 600,000 [10],[12],[17]             $ 700,000 [13],[18]            
Amortized Cost 600,000 [10],[17]             700,000 [18]            
Fair Value $ 600,000 [3],[10],[17]             $ 700,000 [5],[18]            
Investment, Identifier [Axis]: Jet Edge International LLC, Structured Mezzanine, Transportation 2 | Maximum                            
Rate, PIK 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [9],[10],[17] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18] 2.00% [11],[18]  
Investment, Identifier [Axis]: Jones Apparel Holdings, Inc., Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares [4],[29]               5,451 5,451 5,451 5,451 5,451 5,451  
Amortized Cost [4],[29]               $ 900,000            
Fair Value [4],[5],[29]               0            
Investment, Identifier [Axis]: KKR Altitude II Offshore Aggregator LP, Partnership Interest                            
Fair Value $ 87,400,000             $ 65,600,000           44,400,000
Investment, Identifier [Axis]: KKR Altitude II Offshore Aggregator LP, Partnership Interest, Capital Goods                            
Principal (in shares) | shares 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 83,548,471 [10],[12],[27],[32] 63,265,438 [4],[6],[13],[33] 63,265,438 [4],[6],[13],[33] 63,265,438 [4],[6],[13],[33] 63,265,438 [4],[6],[13],[33] 63,265,438 [4],[6],[13],[33] 63,265,438 [4],[6],[13],[33]  
Amortized Cost $ 83,500,000 [10],[27],[32]             $ 63,300,000 [4],[6],[33]            
Fair Value 87,400,000 [3],[10],[27],[32]             65,600,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: KKR Central Park Leasing Aggregator L.P., Partnership Interest                            
Fair Value $ 15,500,000             $ 15,300,000           0
Investment, Identifier [Axis]: KKR Central Park Leasing Aggregator L.P., Partnership Interest, Capital Goods                            
Rate, stated interest rate 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [9],[10],[24],[25],[27],[32] 14.30% [4],[6],[11],[30],[33] 14.30% [4],[6],[11],[30],[33] 14.30% [4],[6],[11],[30],[33] 14.30% [4],[6],[11],[30],[33] 14.30% [4],[6],[11],[30],[33] 14.30% [4],[6],[11],[30],[33]  
Principal Amount $ 39,100,000 [10],[12],[24],[25],[27],[32]             $ 39,100,000 [4],[6],[13],[29],[30],[33]            
Amortized Cost 39,100,000 [10],[24],[25],[27],[32]             39,100,000 [4],[6],[29],[30],[33]            
Fair Value 15,500,000 [3],[10],[24],[25],[27],[32]             15,300,000 [4],[5],[6],[29],[30],[33]            
Investment, Identifier [Axis]: KKR Chord IP Aggregator LP, Partnership Interest                            
Fair Value 30,500,000             $ 99,900,000 [36]           0 [36]
Investment, Identifier [Axis]: KKR Chord IP Aggregator LP, Partnership Interest, Media & Entertainment                            
Principal Amount [10],[12],[27],[32] 30,478,189                          
Principal (in shares) | shares [4],[6],[13],[33]               89,492,619 89,492,619 89,492,619 89,492,619 89,492,619 89,492,619  
Amortized Cost 300,000 [10],[27],[32]             $ 89,600,000 [4],[6],[33]            
Fair Value 30,500,000 [3],[10],[27],[32]             $ 99,900,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: KKR Residential Opportunities I LLC, Private Equity, Real Estate Management & Development                            
Principal (in shares) | shares [4],[13]               6,285,920 6,285,920 6,285,920 6,285,920 6,285,920 6,285,920  
Amortized Cost [4]               $ 6,300,000            
Fair Value [4],[5]               7,300,000            
Investment, Identifier [Axis]: KKR Rocket Loans Aggregator LLC, Partnership Interest                            
Fair Value $ 7,500,000             $ 8,300,000           4,300,000
Investment, Identifier [Axis]: KKR Rocket Loans Aggregator LLC, Partnership Interest, Financial Services                            
Principal (in shares) | shares 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 7,952,248 [10],[12],[24],[27],[32] 9,221,222 [4],[6],[13],[29],[33] 9,221,222 [4],[6],[13],[29],[33] 9,221,222 [4],[6],[13],[29],[33] 9,221,222 [4],[6],[13],[29],[33] 9,221,222 [4],[6],[13],[29],[33] 9,221,222 [4],[6],[13],[29],[33]  
Amortized Cost $ 8,000,000.0 [10],[24],[27],[32]             $ 9,200,000 [4],[6],[29],[33]            
Fair Value 7,500,000 [3],[10],[24],[27],[32]             8,300,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: KKR Zeno Aggregator LP (K2 Aviation), Partnership Interest                            
Fair Value $ 11,600,000             $ 11,800,000 [36]           0 [36]
Investment, Identifier [Axis]: KKR Zeno Aggregator LP (K2 Aviation), Partnership Interest, Capital Goods                            
Principal (in shares) | shares 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [10],[12],[24],[27],[32] 11,976,417 [4],[6],[13],[29],[33] 11,976,417 [4],[6],[13],[29],[33] 11,976,417 [4],[6],[13],[29],[33] 11,976,417 [4],[6],[13],[29],[33] 11,976,417 [4],[6],[13],[29],[33] 11,976,417 [4],[6],[13],[29],[33]  
Amortized Cost $ 11,300,000 [10],[24],[27],[32]             $ 11,300,000 [4],[6],[29],[33]            
Fair Value $ 11,600,000 [3],[10],[24],[27],[32]             $ 11,800,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 1                            
Rate, basis spread on variable rate 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11]  
Floor 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4]  
Principal Amount $ 96,200,000 [10],[12]             $ 49,800,000 [4],[13]            
Amortized Cost 94,400,000 [10]             48,200,000 [4]            
Fair Value $ 97,100,000 [3],[10]             $ 49,800,000 [4],[5]            
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 2                            
Rate, basis spread on variable rate 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11]  
Floor 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [9],[10] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4] 2.00% [4]  
Principal Amount $ 5,500,000 [10],[12]             $ 5,500,000 [4],[13]            
Amortized Cost 5,400,000 [10]             5,400,000 [4]            
Fair Value 5,500,000 [3],[10]             $ 5,500,000 [4],[5]            
Investment, Identifier [Axis]: Karman Space Inc, Capital Goods 3                            
Rate, basis spread on variable rate [4],[11]               7.00% 7.00% 7.00% 7.00% 7.00% 7.00%  
Floor [4]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[13]               $ 36,100,000            
Amortized Cost [4]               35,700,000            
Fair Value [4],[5]               36,100,000            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC 1                            
Fair Value 0             0            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC 2                            
Fair Value 190,500,000             0            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC 3                            
Fair Value $ 82,800,000             $ 0            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services                            
Rate, basis spread on variable rate [9],[10],[32],[35],[43] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Rate, PIK [9],[10],[32],[35],[43] 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00%              
Floor [9],[10],[32],[35],[43] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[32],[35],[43] $ 82,800,000                          
Amortized Cost [10],[32],[35],[43] 81,100,000                          
Fair Value [3],[10],[32],[35],[43] $ 82,800,000                          
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services | Maximum                            
Rate, PIK [9],[10],[32],[35],[43] 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00%              
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 1.75% [9],[10],[32],[35],[43] 6.00% [4],[11],[34],[42] 6.00% [4],[11],[34],[42] 6.00% [4],[11],[34],[42] 6.00% [4],[11],[34],[42] 6.00% [4],[11],[34],[42] 6.00% [4],[11],[34],[42]  
Rate, PIK [9],[10],[32],[35],[43] 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%              
Floor 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [9],[10],[32],[35],[43] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42]  
Principal Amount $ 190,500,000 [10],[12],[32],[35],[43]             $ 165,700,000 [4],[13],[34],[42]            
Amortized Cost 185,800,000 [10],[32],[35],[43]             160,600,000 [4],[34],[42]            
Fair Value $ 190,500,000 [3],[10],[32],[35],[43]             $ 165,700,000 [4],[5],[34],[42]            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 1 | Maximum                            
Rate, PIK [9],[10],[32],[35],[43] 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%              
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate [4],[11],[29],[30],[34],[42]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Rate, PIK [4],[11],[29],[30],[34],[42]               7.00% 7.00% 7.00% 7.00% 7.00% 7.00%  
Floor [4],[29],[30],[34],[42]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [4],[13],[29],[30],[34],[42]               $ 200,400,000            
Amortized Cost [4],[29],[30],[34],[42]               197,600,000            
Fair Value [4],[5],[29],[30],[34],[42]               $ 135,300,000            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 2 | Maximum                            
Rate, PIK [4],[11],[29],[30],[34],[42]               7.00% 7.00% 7.00% 7.00% 7.00% 7.00%  
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate [9],[17],[32] 1.75% 1.75% 1.75% 1.75% 1.75% 1.75% 1.75%              
Rate, PIK [9],[17],[32] 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%              
Floor [9],[17],[32] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [12],[17],[32] $ 5,500,000                          
Amortized Cost [17],[32] 5,500,000                          
Fair Value [3],[17],[32] $ 5,500,000                          
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Commercial & Professional Services 3 | Maximum                            
Rate, PIK [9],[17],[32] 3.50% 3.50% 3.50% 3.50% 3.50% 3.50% 3.50%              
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Common Stock                            
Fair Value $ 0             $ 0            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Common Stock, Commercial & Professional Services                            
Principal (in shares) | shares [10],[24],[32],[35],[43] 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661              
Amortized Cost [10],[24],[32],[35],[43] $ 0                          
Fair Value [3],[10],[24],[32],[35],[43] 0                          
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Preferred Stock                            
Fair Value $ 48,300,000             0            
Investment, Identifier [Axis]: Kellermeyer Bergensons Services LLC, Preferred Stock, Commercial & Professional Services                            
Principal (in shares) | shares [10],[24],[32],[35],[43] 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661 26,230,661              
Amortized Cost [10],[24],[32],[35],[43] $ 48,300,000                          
Fair Value [3],[10],[24],[32],[35],[43] 48,300,000                          
Investment, Identifier [Axis]: Kilter Finance, Preferred Stock                            
Fair Value $ 99,700,000             $ 99,700,000           99,500,000
Investment, Identifier [Axis]: Kilter Finance, Preferred Stock, Insurance                            
Rate, stated interest rate 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [9],[10],[27],[32] 12.00% [4],[6],[11],[33] 12.00% [4],[6],[11],[33] 12.00% [4],[6],[11],[33] 12.00% [4],[6],[11],[33] 12.00% [4],[6],[11],[33] 12.00% [4],[6],[11],[33]  
Principal Amount [10],[12],[27],[32] $ 99,700,000                          
Principal (in shares) | shares [4],[6],[13],[33]               99,700,000 99,700,000 99,700,000 99,700,000 99,700,000 99,700,000  
Amortized Cost 98,900,000 [10],[27],[32]             $ 98,900,000 [4],[6],[33]            
Fair Value 99,700,000 [3],[10],[27],[32]             99,700,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Kilter Finance, Private Equity                            
Fair Value $ 500,000             $ 500,000           500,000
Investment, Identifier [Axis]: Kilter Finance, Private Equity, Insurance                            
Principal (in shares) | shares 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [10],[12],[24],[27],[32] 536,709 [4],[6],[13],[29],[33] 536,709 [4],[6],[13],[29],[33] 536,709 [4],[6],[13],[29],[33] 536,709 [4],[6],[13],[29],[33] 536,709 [4],[6],[13],[29],[33] 536,709 [4],[6],[13],[29],[33]  
Amortized Cost $ 500,000 [10],[24],[27],[32]             $ 500,000 [4],[6],[29],[33]            
Fair Value $ 500,000 [3],[10],[24],[27],[32]             $ 500,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [9],[10],[27] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11] 6.75% [4],[6],[11]  
Rate, PIK 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 7.9 [10],[12],[27]             € 7.8 [4],[6],[13]      
Amortized Cost $ 8,100,000 [10],[27]             $ 8,000,000.0 [4],[6]            
Fair Value $ 8,500,000 [3],[10],[27]             $ 8,400,000 [4],[5],[6]            
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 1 | Maximum                            
Rate, PIK 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [9],[10],[27] 2.40% [4],[6],[11] 2.40% [4],[6],[11] 2.40% [4],[6],[11] 2.40% [4],[6],[11] 2.40% [4],[6],[11] 2.40% [4],[6],[11]  
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [9],[10],[17],[27] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18] 6.75% [6],[11],[18]  
Rate, PIK 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18] 0.00% [6],[11],[18]  
Floor 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | €       € 0.5 [10],[12],[17],[27]             € 0.6 [6],[13],[18]      
Amortized Cost $ 600,000 [10],[17],[27]             $ 700,000 [6],[18]            
Fair Value $ 600,000 [3],[10],[17],[27]             $ 600,000 [5],[6],[18]            
Investment, Identifier [Axis]: Laboratoires Vivacy SAS, Pharmaceuticals, Biotechnology & Life Sciences 2 | Maximum                            
Rate, PIK 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [9],[10],[17],[27] 2.40% [6],[11],[18] 2.40% [6],[11],[18] 2.40% [6],[11],[18] 2.40% [6],[11],[18] 2.40% [6],[11],[18] 2.40% [6],[11],[18]  
Investment, Identifier [Axis]: Lakefield Veterinary Group, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11] 5.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 37,600,000 [10],[12]             $ 37,700,000 [4],[13]            
Amortized Cost 37,600,000 [10]             37,700,000 [4]            
Fair Value $ 37,400,000 [3],[10]             $ 36,800,000 [4],[5]            
Investment, Identifier [Axis]: Lakefield Veterinary Group, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [9],[10],[15],[19],[43] 5.50% [4],[11],[21],[42],[44] 5.50% [4],[11],[21],[42],[44] 5.50% [4],[11],[21],[42],[44] 5.50% [4],[11],[21],[42],[44] 5.50% [4],[11],[21],[42],[44] 5.50% [4],[11],[21],[42],[44]  
Floor 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [9],[10],[15],[19],[43] 0.80% [4],[21],[42],[44] 0.80% [4],[21],[42],[44] 0.80% [4],[21],[42],[44] 0.80% [4],[21],[42],[44] 0.80% [4],[21],[42],[44] 0.80% [4],[21],[42],[44]  
Principal Amount $ 80,200,000 [10],[12],[15],[19],[43]             $ 80,400,000 [4],[13],[21],[42],[44]            
Amortized Cost 79,600,000 [10],[15],[19],[43]             79,800,000 [4],[21],[42],[44]            
Fair Value $ 79,800,000 [3],[10],[15],[19],[43]             $ 78,500,000 [4],[5],[21],[42],[44]            
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [9],[10],[14],[43] 5.75% [11],[16],[42] 5.75% [11],[16],[42] 5.75% [11],[16],[42] 5.75% [11],[16],[42] 5.75% [11],[16],[42] 5.75% [11],[16],[42]  
Floor 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [16],[42] 1.00% [16],[42] 1.00% [16],[42] 1.00% [16],[42] 1.00% [16],[42] 1.00% [16],[42]  
Principal Amount $ 67,700,000 [10],[12],[14],[43]             $ 30,900,000 [13],[16],[42]            
Amortized Cost 66,400,000 [10],[14],[43]             29,600,000 [16],[42]            
Fair Value $ 67,700,000 [3],[10],[14],[43]             $ 30,800,000 [5],[16],[42]            
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42]  
Principal Amount $ 6,800,000 [12],[17]             $ 36,900,000 [4],[13],[42]            
Amortized Cost 6,800,000 [17]             36,900,000 [4],[42]            
Fair Value $ 6,800,000 [3],[17]             $ 36,800,000 [4],[5],[42]            
Investment, Identifier [Axis]: Lakeview Farms Inc, Food, Beverage & Tobacco 3                            
Rate, basis spread on variable rate [11],[18]               5.75% 5.75% 5.75% 5.75% 5.75% 5.75%  
Floor [18]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [13],[18]               $ 6,800,000            
Amortized Cost [18]               6,800,000            
Fair Value [5],[18]               $ 6,800,000            
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 1                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 300,000 [10],[12]             $ 18,200,000 [4],[13]            
Amortized Cost 300,000 [10]             18,000,000.0 [4]            
Fair Value $ 300,000 [3],[10]             $ 18,500,000 [4],[5]            
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 2                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21] 5.50% [4],[11],[21]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4],[21] 0.80% [4],[21] 0.80% [4],[21] 0.80% [4],[21] 0.80% [4],[21] 0.80% [4],[21]  
Principal Amount $ 18,100,000 [10],[12]             $ 3,300,000 [4],[13],[21]            
Amortized Cost 18,000,000.0 [10]             3,300,000 [4],[21]            
Fair Value $ 18,300,000 [3],[10]             $ 3,300,000 [4],[5],[21]            
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 3                            
Rate, basis spread on variable rate 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 0.80% [9],[19] 0.80% [9],[19] 0.80% [9],[19] 0.80% [9],[19] 0.80% [9],[19] 0.80% [9],[19] 0.80% [9],[19] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 2,100,000 [12],[19]             $ 1,900,000 [13],[18]            
Amortized Cost 2,000,000.0 [19]             1,900,000 [18]            
Fair Value $ 2,000,000.0 [3],[19]             $ 1,900,000 [5],[18]            
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 4                            
Rate, basis spread on variable rate 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [9],[10] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 4,100,000 [10],[12]             $ 8,600,000 [13],[18]            
Amortized Cost 4,100,000 [10]             8,600,000 [18]            
Fair Value $ 4,100,000 [3],[10]             $ 8,400,000 [5],[18]            
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 5                            
Rate, basis spread on variable rate [9],[10],[17] 6.25% 6.25% 6.25% 6.25% 6.25% 6.25% 6.25%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 1,700,000                          
Amortized Cost [10],[17] 1,700,000                          
Fair Value [3],[10],[17] $ 1,700,000                          
Investment, Identifier [Axis]: Lazer Logistics Inc, Transportation 6                            
Rate, basis spread on variable rate [9],[10],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[10],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17] $ 5,700,000                          
Amortized Cost [10],[17] 5,700,000                          
Fair Value [3],[10],[17] $ 5,700,000                          
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.25% [9],[10],[14],[15],[43] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11]  
Floor 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [9],[10],[14],[15],[43] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 116,500,000 [10],[12],[14],[15],[43]             $ 2,900,000 [4],[13]            
Amortized Cost 114,000,000.0 [10],[14],[15],[43]             2,900,000 [4]            
Fair Value $ 117,200,000 [3],[10],[14],[15],[43]             $ 2,900,000 [4],[5]            
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.75% [9],[17] 6.75% [9],[17] 6.75% [9],[17] 6.75% [9],[17] 6.75% [9],[17] 6.75% [9],[17] 6.75% [9],[17] 6.75% [4],[11],[16],[42],[44] 6.75% [4],[11],[16],[42],[44] 6.75% [4],[11],[16],[42],[44] 6.75% [4],[11],[16],[42],[44] 6.75% [4],[11],[16],[42],[44] 6.75% [4],[11],[16],[42],[44]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [4],[16],[42],[44] 1.00% [4],[16],[42],[44] 1.00% [4],[16],[42],[44] 1.00% [4],[16],[42],[44] 1.00% [4],[16],[42],[44] 1.00% [4],[16],[42],[44]  
Principal Amount $ 8,400,000 [12],[17]             $ 116,800,000 [4],[13],[16],[42],[44]            
Amortized Cost 8,400,000 [17]             114,200,000 [4],[16],[42],[44]            
Fair Value $ 8,400,000 [3],[17]             $ 118,600,000 [4],[5],[16],[42],[44]            
Investment, Identifier [Axis]: Lexitas Inc, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.25% [9],[17],[40] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18]  
Floor 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [9],[17],[40] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 30,200,000 [12],[17],[40]             $ 5,500,000 [13],[18]            
Amortized Cost 30,200,000 [17],[40]             5,500,000 [18]            
Fair Value $ 29,900,000 [3],[17],[40]             $ 5,500,000 [5],[18]            
Investment, Identifier [Axis]: Lionbridge Technologies Inc, Media & Entertainment                            
Rate, basis spread on variable rate 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [9],[10],[14],[15],[19],[20],[35] 7.00% [4],[11],[16],[21],[22],[34],[44] 7.00% [4],[11],[16],[21],[22],[34],[44] 7.00% [4],[11],[16],[21],[22],[34],[44] 7.00% [4],[11],[16],[21],[22],[34],[44] 7.00% [4],[11],[16],[21],[22],[34],[44] 7.00% [4],[11],[16],[21],[22],[34],[44]  
Floor 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [9],[10],[14],[15],[19],[20],[35] 1.00% [4],[16],[21],[22],[34],[44] 1.00% [4],[16],[21],[22],[34],[44] 1.00% [4],[16],[21],[22],[34],[44] 1.00% [4],[16],[21],[22],[34],[44] 1.00% [4],[16],[21],[22],[34],[44] 1.00% [4],[16],[21],[22],[34],[44]  
Principal Amount $ 106,200,000 [10],[12],[14],[15],[19],[20],[35]             $ 109,500,000 [4],[13],[16],[21],[22],[34],[44]            
Amortized Cost 104,100,000 [10],[14],[15],[19],[20],[35]             107,100,000 [4],[16],[21],[22],[34],[44]            
Fair Value $ 106,200,000 [3],[10],[14],[15],[19],[20],[35]             $ 109,500,000 [4],[5],[16],[21],[22],[34],[44]            
Investment, Identifier [Axis]: Lipari Foods LLC, Common Stock, Consumer Staples Distribution & Retail                            
Principal (in shares) | shares 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [10],[24] 7,944,319 [4],[29] 7,944,319 [4],[29] 7,944,319 [4],[29] 7,944,319 [4],[29] 7,944,319 [4],[29] 7,944,319 [4],[29]  
Amortized Cost $ 8,000,000.0 [10],[24]             $ 8,000,000.0 [4],[29]            
Fair Value $ 5,100,000 [3],[10],[24]             $ 5,600,000 [4],[5],[29]            
Investment, Identifier [Axis]: Lipari Foods LLC, Consumer Staples Distribution & Retail 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [9],[10],[15],[19],[43] 6.50% [4],[11],[21],[42],[44] 6.50% [4],[11],[21],[42],[44] 6.50% [4],[11],[21],[42],[44] 6.50% [4],[11],[21],[42],[44] 6.50% [4],[11],[21],[42],[44] 6.50% [4],[11],[21],[42],[44]  
Floor 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44]  
Principal Amount $ 88,100,000 [10],[12],[15],[19],[43]             $ 100,600,000 [4],[13],[21],[42],[44]            
Amortized Cost 87,000,000.0 [10],[15],[19],[43]             99,400,000 [4],[21],[42],[44]            
Fair Value $ 87,400,000 [3],[10],[15],[19],[43]             $ 99,800,000 [4],[5],[21],[42],[44]            
Investment, Identifier [Axis]: Lipari Foods LLC, Consumer Staples Distribution & Retail 2                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 12,200,000 [10],[12]             $ 15,000,000.0 [13],[18]            
Amortized Cost 12,200,000 [10]             15,000,000.0 [18]            
Fair Value $ 12,100,000 [3],[10]             $ 14,900,000 [5],[18]            
Investment, Identifier [Axis]: Lipari Foods LLC, Consumer Staples Distribution & Retail 3                            
Rate, basis spread on variable rate [9],[10],[17] 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50%              
Floor [9],[10],[17] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[17] $ 15,000,000.0                          
Amortized Cost [10],[17] 15,000,000.0                          
Fair Value [3],[10],[17] $ 14,900,000                          
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [9],[10],[27] 6.00% [4],[6],[11] 6.00% [4],[6],[11] 6.00% [4],[6],[11] 6.00% [4],[6],[11] 6.00% [4],[6],[11] 6.00% [4],[6],[11]  
Rate, PIK [4],[6],[11]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | £         £ 11.3 [10],[12],[27]             £ 11.3 [4],[6],[13]    
Amortized Cost $ 14,300,000 [10],[27]             $ 14,300,000 [4],[6]            
Fair Value $ 14,100,000 [3],[10],[27]             $ 14,100,000 [4],[5],[6]            
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 1 | Maximum                            
Rate, PIK [4],[6],[11]               2.90% 2.90% 2.90% 2.90% 2.90% 2.90%  
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [9],[10],[17],[27] 6.00% [6],[11],[18] 6.00% [6],[11],[18] 6.00% [6],[11],[18] 6.00% [6],[11],[18] 6.00% [6],[11],[18] 6.00% [6],[11],[18]  
Rate, PIK [6],[11],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | £         £ 3.7 [10],[12],[17],[27]             £ 3.7 [6],[13],[18]    
Amortized Cost $ 5,700,000 [10],[17],[27]             $ 5,700,000 [6],[18]            
Fair Value $ 5,600,000 [3],[10],[17],[27]             $ 5,600,000 [5],[6],[18]            
Investment, Identifier [Axis]: Lloyd's Register Quality Assurance Ltd, Consumer Services 2 | Maximum                            
Rate, PIK [6],[11],[18]               2.90% 2.90% 2.90% 2.90% 2.90% 2.90%  
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services                            
Rate, basis spread on variable rate [4],[11],[16],[22],[42]               6.00% 6.00% 6.00% 6.00% 6.00% 6.00%  
Floor [4],[16],[22],[42]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[13],[16],[22],[42]               $ 220,200,000            
Amortized Cost [4],[16],[22],[42]               214,800,000            
Fair Value [4],[5],[16],[22],[42]               $ 220,200,000            
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate [9],[10],[14],[20] 6.00% 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%              
Floor [9],[10],[14],[20] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[14],[20] $ 110,600,000                          
Amortized Cost [10],[14],[20] 109,500,000                          
Fair Value [3],[10],[14],[20] $ 109,500,000                          
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate [9],[10],[14],[17],[20] 6.00% 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%              
Floor [9],[10],[14],[17],[20] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[14],[17],[20] $ 77,300,000                          
Amortized Cost [10],[14],[17],[20] 77,300,000                          
Fair Value [3],[10],[14],[17],[20] $ 76,500,000                          
Investment, Identifier [Axis]: MB2 Dental Solutions LLC, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate [9],[17] 6.00% 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 10,700,000                          
Amortized Cost [17] 10,700,000                          
Fair Value [3],[17] $ 10,600,000                          
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.50% [4],[11],[42] 6.50% [4],[11],[42] 6.50% [4],[11],[42] 6.50% [4],[11],[42] 6.50% [4],[11],[42] 6.50% [4],[11],[42]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 2,100,000 [10],[12]             $ 18,300,000 [4],[13],[42]            
Amortized Cost 2,100,000 [10]             18,100,000 [4],[42]            
Fair Value $ 2,100,000 [3],[10]             $ 18,300,000 [4],[5],[42]            
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [9],[10],[43] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 23,400,000 [10],[12],[43]             $ 5,100,000 [4],[13]            
Amortized Cost 23,200,000 [10],[43]             5,100,000 [4]            
Fair Value $ 23,900,000 [3],[10],[43]             $ 5,100,000 [4],[5]            
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.50% [9],[17] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 2,200,000 [12],[17]             $ 500,000 [4],[13]            
Amortized Cost 2,200,000 [17]             500,000 [4]            
Fair Value $ 2,200,000 [3],[17]             $ 500,000 [4],[5]            
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 4                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 11,200,000 [10],[12],[17]             $ 2,200,000 [13],[18]            
Amortized Cost 11,200,000 [10],[17]             2,200,000 [18]            
Fair Value $ 11,300,000 [3],[10],[17]             $ 2,200,000 [5],[18]            
Investment, Identifier [Axis]: Magna Legal Services LLC, Commercial & Professional Services 5                            
Rate, basis spread on variable rate [11],[18]               6.00% 6.00% 6.00% 6.00% 6.00% 6.00%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[18]               $ 12,900,000            
Amortized Cost [18]               12,900,000            
Fair Value [5],[18]               $ 12,800,000            
Investment, Identifier [Axis]: Magna Legal Services LLC, Common Stock, Commercial & Professional Services                            
Principal (in shares) | shares 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [24],[51] 4,938,192 [29],[45] 4,938,192 [29],[45] 4,938,192 [29],[45] 4,938,192 [29],[45] 4,938,192 [29],[45] 4,938,192 [29],[45]  
Amortized Cost $ 4,900,000 [24],[51]             $ 4,900,000 [29],[45]            
Fair Value $ 5,300,000 [3],[24],[51]             $ 5,000,000.0 [5],[29],[45]            
Investment, Identifier [Axis]: Maverick Natural Resources LLC, Common Stock, Energy                            
Principal (in shares) | shares 259,211 [46],[56] 259,211 [46],[56] 259,211 [46],[56] 259,211 [46],[56] 259,211 [46],[56] 259,211 [46],[56] 259,211 [46],[56] 259,211 [52],[57] 259,211 [52],[57] 259,211 [52],[57] 259,211 [52],[57] 259,211 [52],[57] 259,211 [52],[57]  
Amortized Cost $ 61,300,000 [46],[56]             $ 61,300,000 [52],[57]            
Fair Value $ 40,500,000 [3],[46],[56]             $ 84,400,000 [5],[52],[57]            
Investment, Identifier [Axis]: Med-Metrix, Common Stock, Software & Services                            
Principal (in shares) | shares 29,403 [24],[51] 29,403 [24],[51] 29,403 [24],[51] 29,403 [24],[51] 29,403 [24],[51] 29,403 [24],[51] 29,403 [24],[51] 29,403 [29],[45] 29,403 [29],[45] 29,403 [29],[45] 29,403 [29],[45] 29,403 [29],[45] 29,403 [29],[45]  
Amortized Cost $ 1,500,000 [24],[51]             $ 1,500,000 [29],[45]            
Fair Value $ 3,700,000 [3],[24],[51]             $ 3,700,000 [5],[29],[45]            
Investment, Identifier [Axis]: Med-Metrix, Preferred Stock, Software & Services                            
Rate, PIK 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45]  
Principal (in shares) | shares 29,403 [51] 29,403 [51] 29,403 [51] 29,403 [51] 29,403 [51] 29,403 [51] 29,403 [51] 29,403 [45] 29,403 [45] 29,403 [45] 29,403 [45] 29,403 [45] 29,403 [45]  
Amortized Cost $ 1,500,000 [51]             $ 1,500,000 [45]            
Fair Value $ 1,500,000 [3],[51]             $ 1,500,000 [5],[45]            
Investment, Identifier [Axis]: Med-Metrix, Preferred Stock, Software & Services | Maximum                            
Rate, PIK 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [9],[51] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45] 8.00% [11],[45]  
Investment, Identifier [Axis]: Med-Metrix, Software & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 5.50% [9],[10],[15],[20],[43] 6.00% [4],[11],[22],[42],[44] 6.00% [4],[11],[22],[42],[44] 6.00% [4],[11],[22],[42],[44] 6.00% [4],[11],[22],[42],[44] 6.00% [4],[11],[22],[42],[44] 6.00% [4],[11],[22],[42],[44]  
Floor 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [9],[10],[15],[20],[43] 1.00% [4],[22],[42],[44] 1.00% [4],[22],[42],[44] 1.00% [4],[22],[42],[44] 1.00% [4],[22],[42],[44] 1.00% [4],[22],[42],[44] 1.00% [4],[22],[42],[44]  
Principal Amount $ 68,900,000 [10],[12],[15],[20],[43]             $ 69,100,000 [4],[13],[22],[42],[44]            
Amortized Cost 68,500,000 [10],[15],[20],[43]             68,700,000 [4],[22],[42],[44]            
Fair Value $ 68,900,000 [3],[10],[15],[20],[43]             $ 69,100,000 [4],[5],[22],[42],[44]            
Investment, Identifier [Axis]: Med-Metrix, Software & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 5.50% [9],[10],[15],[17],[20],[43] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [9],[10],[15],[17],[20],[43] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 11,400,000 [10],[12],[15],[17],[20],[43]             $ 11,400,000 [13],[18]            
Amortized Cost 11,400,000 [10],[15],[17],[20],[43]             11,400,000 [18]            
Fair Value $ 11,400,000 [3],[10],[15],[17],[20],[43]             $ 11,400,000 [5],[18]            
Investment, Identifier [Axis]: Med-Metrix, Software & Services 3                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 7,800,000 [12],[17]             $ 7,800,000 [13],[18]            
Amortized Cost 7,800,000 [17]             7,800,000 [18]            
Fair Value $ 7,800,000 [3],[17]             $ 7,800,000 [5],[18]            
Investment, Identifier [Axis]: Medallia Inc, Software & Services                            
Rate, basis spread on variable rate 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [9],[10],[43] 2.50% [4],[11],[42] 2.50% [4],[11],[42] 2.50% [4],[11],[42] 2.50% [4],[11],[42] 2.50% [4],[11],[42] 2.50% [4],[11],[42]  
Rate, PIK [4],[11],[42]               4.00% 4.00% 4.00% 4.00% 4.00% 4.00%  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 219,100,000 [10],[12],[43]             $ 217,000,000.0 [4],[13],[42]            
Amortized Cost 217,400,000 [10],[43]             215,200,000 [4],[42]            
Fair Value $ 219,100,000 [3],[10],[43]             $ 216,100,000 [4],[5],[42]            
Investment, Identifier [Axis]: Medallia Inc, Software & Services | Maximum                            
Rate, PIK 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [9],[10],[43] 4.00% [4],[11],[42] 4.00% [4],[11],[42] 4.00% [4],[11],[42] 4.00% [4],[11],[42] 4.00% [4],[11],[42] 4.00% [4],[11],[42]  
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services                            
Principal Amount [4],[13],[29]               $ 5,600,000            
Amortized Cost [4],[29]               3,600,000            
Fair Value [4],[5],[29]               $ 0            
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [9],[10],[24],[25],[43] 6.50% [4],[11],[29],[30],[42] 6.50% [4],[11],[29],[30],[42] 6.50% [4],[11],[29],[30],[42] 6.50% [4],[11],[29],[30],[42] 6.50% [4],[11],[29],[30],[42] 6.50% [4],[11],[29],[30],[42]  
Rate, PIK 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42]  
Floor 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [9],[10],[24],[25],[43] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42]  
Principal Amount $ 115,000,000.0 [10],[12],[24],[25],[43]             $ 114,600,000 [4],[13],[29],[30],[42]            
Amortized Cost 106,500,000 [10],[24],[25],[43]             106,500,000 [4],[29],[30],[42]            
Fair Value $ 63,500,000 [3],[10],[24],[25],[43]             $ 68,900,000 [4],[5],[29],[30],[42]            
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 1 | Maximum                            
Rate, PIK 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [9],[10],[24],[25],[43] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42] 1.50% [4],[11],[29],[30],[42]  
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [9],[10],[24],[25] 6.50% [4],[11],[29],[30] 6.50% [4],[11],[29],[30] 6.50% [4],[11],[29],[30] 6.50% [4],[11],[29],[30] 6.50% [4],[11],[29],[30] 6.50% [4],[11],[29],[30]  
Rate, PIK 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30]  
Floor 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [9],[10],[24],[25] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30]  
Principal Amount $ 19,100,000 [10],[12],[24],[25]             $ 19,000,000.0 [4],[13],[29],[30]            
Amortized Cost 17,500,000 [10],[24],[25]             17,500,000 [4],[29],[30]            
Fair Value $ 10,500,000 [3],[10],[24],[25]             $ 11,400,000 [4],[5],[29],[30]            
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 2 | Maximum                            
Rate, PIK 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [9],[10],[24],[25] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30] 1.50% [4],[11],[29],[30]  
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate [4],[11]               6.50% 6.50% 6.50% 6.50% 6.50% 6.50%  
Rate, PIK [4],[11]               1.50% 1.50% 1.50% 1.50% 1.50% 1.50%  
Floor [4]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount $ 5,800,000 [10],[12],[24]             $ 6,300,000 [4],[13]            
Amortized Cost 3,600,000 [10],[24]             6,300,000 [4]            
Fair Value $ 0 [3],[10],[24]             $ 6,400,000 [4],[5]            
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 3 | Maximum                            
Rate, PIK [4],[11]               1.50% 1.50% 1.50% 1.50% 1.50% 1.50%  
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 4                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Rate, PIK 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 9,000,000.0 [10],[12]             $ 20,000,000.0 [13],[18]            
Amortized Cost 9,000,000.0 [10]             20,000,000.0 [18]            
Fair Value $ 9,000,000.0 [3],[10]             $ 20,200,000 [5],[18]            
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 4 | Maximum                            
Rate, PIK 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [9],[10] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18] 1.50% [11],[18]  
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 5                            
Rate, basis spread on variable rate [9],[10],[17] 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50%              
Rate, PIK [9],[10],[17] 1.50% 1.50% 1.50% 1.50% 1.50% 1.50% 1.50%              
Floor [9],[10],[17] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[17] $ 17,400,000                          
Amortized Cost [10],[17] 17,400,000                          
Fair Value [3],[10],[17] $ 17,400,000                          
Investment, Identifier [Axis]: Miami Beach Medical Group LLC, Health Care Equipment & Services 5 | Maximum                            
Rate, PIK [9],[10],[17] 1.50% 1.50% 1.50% 1.50% 1.50% 1.50% 1.50%              
Investment, Identifier [Axis]: Misys Ltd, Preferred Stock, Software & Services                            
Variable rate, PIK 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal (in shares) | shares 78,761,513 [10],[27] 78,761,513 [10],[27] 78,761,513 [10],[27] 78,761,513 [10],[27] 78,761,513 [10],[27] 78,761,513 [10],[27] 78,761,513 [10],[27] 75,534,743 [4],[6] 75,534,743 [4],[6] 75,534,743 [4],[6] 75,534,743 [4],[6] 75,534,743 [4],[6] 75,534,743 [4],[6]  
Amortized Cost $ 74,700,000 [10],[27]             $ 71,500,000 [4],[6]            
Fair Value $ 75,000,000.0 [3],[10],[27]             $ 71,200,000 [4],[5],[6]            
Investment, Identifier [Axis]: Misys Ltd, Preferred Stock, Software & Services | Maximum                            
Variable rate, PIK 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [9],[10],[27] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11] 11.25% [4],[6],[11]  
Investment, Identifier [Axis]: Misys Ltd, Software & Services 1                            
Rate, basis spread on variable rate 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount $ 300,000 [10],[12],[27]             $ 400,000 [4],[6],[13]            
Amortized Cost 300,000 [10],[27]             400,000 [4],[6]            
Fair Value $ 300,000 [3],[10],[27]             $ 400,000 [4],[5],[6]            
Investment, Identifier [Axis]: Misys Ltd, Software & Services 2                            
Rate, basis spread on variable rate 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [9],[10],[17],[27] 7.25% [6],[11],[18] 7.25% [6],[11],[18] 7.25% [6],[11],[18] 7.25% [6],[11],[18] 7.25% [6],[11],[18] 7.25% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 1,300,000 [10],[12],[17],[27]             $ 1,100,000 [6],[13],[18]            
Amortized Cost 1,300,000 [10],[17],[27]             1,100,000 [6],[18]            
Fair Value $ 1,200,000 [3],[10],[17],[27]             $ 1,100,000 [5],[6],[18]            
Investment, Identifier [Axis]: Motion Recruitment Partners LLC, Commercial & Professional Services                            
Rate, basis spread on variable rate 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.75% [9],[10],[15],[19],[20] 6.50% [4],[11],[21],[22],[44] 6.50% [4],[11],[21],[22],[44] 6.50% [4],[11],[21],[22],[44] 6.50% [4],[11],[21],[22],[44] 6.50% [4],[11],[21],[22],[44] 6.50% [4],[11],[21],[22],[44]  
Floor 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [9],[10],[15],[19],[20] 1.00% [4],[21],[22],[44] 1.00% [4],[21],[22],[44] 1.00% [4],[21],[22],[44] 1.00% [4],[21],[22],[44] 1.00% [4],[21],[22],[44] 1.00% [4],[21],[22],[44]  
Principal Amount $ 114,500,000 [10],[12],[15],[19],[20]             $ 114,500,000 [4],[13],[21],[22],[44]            
Amortized Cost 112,400,000 [10],[15],[19],[20]             112,100,000 [4],[21],[22],[44]            
Fair Value 111,800,000 [3],[10],[15],[19],[20]             111,300,000 [4],[5],[21],[22],[44]            
Investment, Identifier [Axis]: My Community Homes PropCo 2, Private Equity                            
Fair Value               78,800,000           79,000,000.0
Investment, Identifier [Axis]: My Community Homes PropCo 2, Private Equity 1                            
Fair Value 0             78,800,000            
Investment, Identifier [Axis]: My Community Homes PropCo 2, Private Equity 2                            
Fair Value $ 17,700,000             $ 0            
Investment, Identifier [Axis]: My Community Homes PropCo 2, Private Equity, Equity Real Estate Investment Trusts (REITs)                            
Principal (in shares) | shares 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 20,284,091 [10],[12],[24],[27],[32] 81,136,364 [4],[6],[13],[29],[33] 81,136,364 [4],[6],[13],[29],[33] 81,136,364 [4],[6],[13],[29],[33] 81,136,364 [4],[6],[13],[29],[33] 81,136,364 [4],[6],[13],[29],[33] 81,136,364 [4],[6],[13],[29],[33]  
Amortized Cost $ 20,300,000 [10],[24],[27],[32]             $ 81,100,000 [4],[6],[29],[33]            
Fair Value 17,700,000 [3],[10],[24],[27],[32]             78,800,000 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: My Community Homes PropCo 2, Term Loan                            
Fair Value $ 60,900,000             $ 0            
Investment, Identifier [Axis]: My Community Homes PropCo 2, Term Loan, Equity Real Estate Investment Trusts (REITs)                            
Rate, PIK [9],[10],[27] 7.50% 7.50% 7.50% 7.50% 7.50% 7.50% 7.50%              
Principal Amount [10],[12],[27] $ 60,900,000                          
Amortized Cost [10],[27] 60,900,000                          
Fair Value [3],[10],[27] $ 60,900,000                          
Investment, Identifier [Axis]: My Community Homes PropCo 2, Term Loan, Equity Real Estate Investment Trusts (REITs) | Maximum                            
Rate, PIK [9],[10],[27] 7.50% 7.50% 7.50% 7.50% 7.50% 7.50% 7.50%              
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 1                            
Floor [4],[29]                
Principal Amount $ 10,100,000 [10],[12],[24],[32]             $ 10,100,000 [4],[13],[29]            
Amortized Cost 10,100,000 [10],[24],[32]             10,100,000 [4],[29]            
Fair Value $ 10,100,000 [3],[10],[24],[32]             $ 10,100,000 [4],[5],[29]            
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 2                            
Variable rate, PIK 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [9],[10],[24],[25],[32] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30] 10.00% [4],[11],[29],[30]  
Floor 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [9],[10],[24],[25],[32] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30]  
Principal Amount $ 32,700,000 [10],[12],[24],[25],[32]             $ 32,700,000 [4],[13],[29],[30]            
Amortized Cost 30,700,000 [10],[24],[25],[32]             30,700,000 [4],[29],[30]            
Fair Value $ 9,900,000 [3],[10],[24],[25],[32]             $ 9,800,000 [4],[5],[29],[30]            
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 2 | Maximum                            
Rate, PIK [9],[10],[24],[25],[32] 10.00% 10.00% 10.00% 10.00% 10.00% 10.00% 10.00%              
Variable rate, PIK [4],[11],[29],[30]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: NBG Home, Consumer Durables & Apparel 3                            
Rate, basis spread on variable rate [4],[11],[29],[30]               5.50% 5.50% 5.50% 5.50% 5.50% 5.50%  
Floor [4],[29],[30]               1.00% 1.00% 1.00% 1.00% 1.00% 1.00%  
Principal Amount [4],[13],[29],[30]               $ 44,300,000            
Amortized Cost [4],[29],[30]               38,700,000            
Fair Value [4],[5],[29],[30]               0            
Investment, Identifier [Axis]: NCI Inc                            
Fair Value $ 33,200,000             32,200,000           28,100,000
Investment, Identifier [Axis]: NCI Inc, Class A-1 Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: NCI Inc, Class A-1 Common Stock, Software & Services                            
Principal (in shares) | shares 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33]  
Amortized Cost $ 0.0 [10],[24],[32]             $ 0 [4],[29],[33]            
Fair Value 0 [3],[10],[24],[32]             0 [4],[5],[29],[33]            
Investment, Identifier [Axis]: NCI Inc, Class B-1 Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: NCI Inc, Class B-1 Common Stock, Software & Services                            
Principal (in shares) | shares 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [10],[24],[32] 30,121 [4],[29],[33] 30,121 [4],[29],[33] 30,121 [4],[29],[33] 30,121 [4],[29],[33] 30,121 [4],[29],[33] 30,121 [4],[29],[33]  
Amortized Cost $ 0 [10],[24],[32]             $ 0 [4],[29],[33]            
Fair Value 0 [3],[10],[24],[32]             0 [4],[5],[29],[33]            
Investment, Identifier [Axis]: NCI Inc, Class C Common Stock                            
Fair Value $ 20,300,000             $ 19,700,000           20,200,000
Investment, Identifier [Axis]: NCI Inc, Class C Common Stock, Software & Services                            
Principal (in shares) | shares 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [10],[24],[32] 49,406 [4],[29],[33] 49,406 [4],[29],[33] 49,406 [4],[29],[33] 49,406 [4],[29],[33] 49,406 [4],[29],[33] 49,406 [4],[29],[33]  
Amortized Cost $ 20,200,000 [10],[24],[32]             $ 20,200,000 [4],[29],[33]            
Fair Value 20,300,000 [3],[10],[24],[32]             19,700,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: NCI Inc, Class I-1 Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: NCI Inc, Class I-1 Common Stock, Software & Services                            
Principal (in shares) | shares 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [10],[24],[32] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33] 42,923 [4],[29],[33]  
Amortized Cost $ 0 [10],[24],[32]             $ 0 [4],[29],[33]            
Fair Value $ 0 [3],[10],[24],[32]             $ 0 [4],[5],[29],[33]            
Investment, Identifier [Axis]: NCI Inc, Software & Services                            
Variable rate, PIK 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 33,200,000 [10],[12],[32]             $ 32,200,000 [4],[13],[33]            
Amortized Cost 33,400,000 [10],[32]             32,400,000 [4],[33]            
Fair Value $ 33,200,000 [3],[10],[32]             $ 32,200,000 [4],[5],[33]            
Investment, Identifier [Axis]: NCI Inc, Software & Services | Maximum                            
Variable rate, PIK 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [9],[10],[32] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33] 7.50% [4],[11],[33]  
Investment, Identifier [Axis]: Net Documents, Software & Services 1                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 33,000,000.0 [10],[12]             $ 33,000,000.0 [4],[13]            
Amortized Cost 32,800,000 [10]             32,800,000 [4]            
Fair Value $ 33,000,000.0 [3],[10]             $ 33,000,000.0 [4],[5]            
Investment, Identifier [Axis]: Net Documents, Software & Services 2                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 1,500,000 [10],[12]             $ 1,500,000 [4],[13]            
Amortized Cost 1,500,000 [10]             1,500,000 [4]            
Fair Value $ 1,500,000 [3],[10]             $ 1,500,000 [4],[5]            
Investment, Identifier [Axis]: Net Documents, Software & Services 3                            
Rate, basis spread on variable rate 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 1,500,000 [10],[12],[17]             $ 1,500,000 [13],[18]            
Amortized Cost 1,500,000 [10],[17]             1,500,000 [18]            
Fair Value $ 1,500,000 [3],[10],[17]             $ 1,500,000 [5],[18]            
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 1                            
Rate, basis spread on variable rate 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [9],[14],[15] 6.25% [11],[16],[44] 6.25% [11],[16],[44] 6.25% [11],[16],[44] 6.25% [11],[16],[44] 6.25% [11],[16],[44] 6.25% [11],[16],[44]  
Floor 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [9],[14],[15] 1.00% [16],[44] 1.00% [16],[44] 1.00% [16],[44] 1.00% [16],[44] 1.00% [16],[44] 1.00% [16],[44]  
Principal Amount $ 25,100,000 [12],[14],[15]             $ 25,200,000 [13],[16],[44]            
Amortized Cost 24,500,000 [14],[15]             24,500,000 [16],[44]            
Fair Value $ 24,900,000 [3],[14],[15]             $ 24,900,000 [5],[16],[44]            
Investment, Identifier [Axis]: New Era Technology Inc, Software & Services 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 4,700,000 [12],[17]             $ 4,700,000 [13],[18]            
Amortized Cost 4,700,000 [17]             4,700,000 [18]            
Fair Value $ 4,600,000 [3],[17]             $ 4,600,000 [5],[18]            
Investment, Identifier [Axis]: NewStar Clarendon 2014-1A Class D, Financial Services                            
Rate, stated interest rate 3.20% [9],[10],[27] 3.20% [9],[10],[27] 3.20% [9],[10],[27] 3.20% [9],[10],[27] 3.20% [9],[10],[27] 3.20% [9],[10],[27] 3.20% [9],[10],[27] 2.00% [4],[6],[11] 2.00% [4],[6],[11] 2.00% [4],[6],[11] 2.00% [4],[6],[11] 2.00% [4],[6],[11] 2.00% [4],[6],[11]  
Principal Amount $ 8,300,000 [10],[12],[27]             $ 8,300,000 [4],[6],[13]            
Amortized Cost 2,400,000 [10],[27]             2,400,000 [4],[6]            
Fair Value $ 2,400,000 [3],[10],[27]             $ 2,200,000 [4],[5],[6]            
Investment, Identifier [Axis]: Nine West Holdings Inc, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares [4],[29]               5,451 5,451 5,451 5,451 5,451 5,451  
Amortized Cost [4],[29]               $ 6,400,000            
Fair Value [4],[5],[29]               $ 0            
Investment, Identifier [Axis]: NovaTaste Austria GmbH, Food, Beverage & Tobacco                            
Rate, basis spread on variable rate [9],[17],[27] 7.00% 7.00% 7.00% 7.00% 7.00% 7.00% 7.00%              
Floor [9],[17],[27] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Principal Amount | € [12],[17],[27]       € 4.7                    
Amortized Cost [17],[27] $ 4,900,000                          
Fair Value [3],[17],[27] $ 5,000,000.0                          
Investment, Identifier [Axis]: NovaTaste Austria GmbH, Food, Beverage & Tobacco 1                            
Rate, basis spread on variable rate [4],[6],[11]               7.00% 7.00% 7.00% 7.00% 7.00% 7.00%  
Floor [4],[6]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | € [4],[6],[13]                     € 4.0      
Amortized Cost [4],[6]               $ 4,100,000            
Fair Value [4],[5],[6]               $ 4,300,000            
Investment, Identifier [Axis]: NovaTaste Austria GmbH, Food, Beverage & Tobacco 2                            
Rate, basis spread on variable rate [6],[11],[18]               7.00% 7.00% 7.00% 7.00% 7.00% 7.00%  
Floor [6],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | € [6],[13],[18]                     € 4.7      
Amortized Cost [6],[18]               $ 4,900,000            
Fair Value [5],[6],[18]               $ 4,900,000            
Investment, Identifier [Axis]: Novotech Pty Ltd, Health Care Equipment & Services                            
Rate, basis spread on variable rate 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [9],[17],[27] 5.25% [6],[11],[18] 5.25% [6],[11],[18] 5.25% [6],[11],[18] 5.25% [6],[11],[18] 5.25% [6],[11],[18] 5.25% [6],[11],[18]  
Floor 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [9],[17],[27] 0.50% [6],[18] 0.50% [6],[18] 0.50% [6],[18] 0.50% [6],[18] 0.50% [6],[18] 0.50% [6],[18]  
Principal Amount $ 5,700,000 [12],[17],[27]                   € 5.7 [6],[13],[18]      
Amortized Cost 5,600,000 [17],[27]             $ 5,600,000 [6],[18]            
Fair Value $ 5,700,000 [3],[17],[27]             $ 5,600,000 [5],[6],[18]            
Investment, Identifier [Axis]: OEConnection LLC, Software & Services                            
Rate, basis spread on variable rate 7.00% [9],[10] 7.00% [9],[10] 7.00% [9],[10] 7.00% [9],[10] 7.00% [9],[10] 7.00% [9],[10] 7.00% [9],[10] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11] 7.00% [4],[11]  
Floor 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4]  
Principal Amount $ 76,100,000 [10],[12]             $ 76,100,000 [4],[13]            
Amortized Cost 75,800,000 [10]             75,800,000 [4]            
Fair Value $ 76,100,000 [3],[10]             $ 75,700,000 [4],[5]            
Investment, Identifier [Axis]: Omnimax International Inc, Capital Goods                            
Rate, basis spread on variable rate 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [9],[10],[14],[15],[19],[43] 8.00% [4],[11],[16],[21],[42],[44] 8.00% [4],[11],[16],[21],[42],[44] 8.00% [4],[11],[16],[21],[42],[44] 8.00% [4],[11],[16],[21],[42],[44] 8.00% [4],[11],[16],[21],[42],[44] 8.00% [4],[11],[16],[21],[42],[44]  
Floor 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [9],[10],[14],[15],[19],[43] 1.00% [4],[16],[21],[42],[44] 1.00% [4],[16],[21],[42],[44] 1.00% [4],[16],[21],[42],[44] 1.00% [4],[16],[21],[42],[44] 1.00% [4],[16],[21],[42],[44] 1.00% [4],[16],[21],[42],[44]  
Principal Amount $ 118,400,000 [10],[12],[14],[15],[19],[43]                   € 121.2 [4],[13],[16],[21],[42],[44]      
Amortized Cost 114,800,000 [10],[14],[15],[19],[43]             $ 117,300,000 [4],[16],[21],[42],[44]            
Fair Value 119,000,000.0 [3],[10],[14],[15],[19],[43]             120,300,000 [4],[5],[16],[21],[42],[44]            
Investment, Identifier [Axis]: One Call Care Management Inc 1                            
Fair Value 4,600,000             4,200,000 [39]           0 [39]
Investment, Identifier [Axis]: One Call Care Management Inc 2                            
Fair Value 21,600,000             20,600,000 [39]           0 [39]
Investment, Identifier [Axis]: One Call Care Management Inc, Common Stock                            
Fair Value $ 2,300,000             $ 1,900,000 [39]           0 [39]
Investment, Identifier [Axis]: One Call Care Management Inc, Common Stock, Health Care Equipment & Services                            
Principal (in shares) | shares 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [10],[24],[37] 34,872 [4],[29],[38] 34,872 [4],[29],[38] 34,872 [4],[29],[38] 34,872 [4],[29],[38] 34,872 [4],[29],[38] 34,872 [4],[29],[38]  
Amortized Cost $ 2,100,000 [10],[24],[37]             $ 2,100,000 [4],[29],[38]            
Fair Value $ 2,300,000 [3],[10],[24],[37]             $ 1,900,000 [4],[5],[29],[38]            
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [9],[10],[37],[40] 5.50% [4],[11],[38],[41] 5.50% [4],[11],[38],[41] 5.50% [4],[11],[38],[41] 5.50% [4],[11],[38],[41] 5.50% [4],[11],[38],[41] 5.50% [4],[11],[38],[41]  
Floor 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [9],[10],[37],[40] 0.80% [4],[38],[41] 0.80% [4],[38],[41] 0.80% [4],[38],[41] 0.80% [4],[38],[41] 0.80% [4],[38],[41] 0.80% [4],[38],[41]  
Principal Amount $ 4,900,000 [10],[12],[37],[40]                   € 4.9 [4],[13],[38],[41]      
Amortized Cost 4,700,000 [10],[37],[40]             $ 4,700,000 [4],[38],[41]            
Fair Value $ 4,600,000 [3],[10],[37],[40]             $ 4,200,000 [4],[5],[38],[41]            
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 2                            
Rate, PIK 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38]  
Principal Amount $ 27,800,000 [10],[12],[37]             $ 27,800,000 [4],[13],[38]            
Amortized Cost 26,500,000 [10],[37]             26,300,000 [4],[38]            
Fair Value $ 21,600,000 [3],[10],[37]             $ 20,600,000 [4],[5],[38]            
Investment, Identifier [Axis]: One Call Care Management Inc, Health Care Equipment & Services 2 | Maximum                            
Rate, PIK 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [9],[10],[37] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38] 8.50% [4],[11],[38]  
Investment, Identifier [Axis]: One Call Care Management Inc, Preferred Stock A                            
Fair Value $ 18,800,000             $ 18,500,000 [39]           0 [39]
Investment, Identifier [Axis]: One Call Care Management Inc, Preferred Stock A, Health Care Equipment & Services                            
Principal (in shares) | shares 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [10],[24],[37] 371,992 [4],[29],[38] 371,992 [4],[29],[38] 371,992 [4],[29],[38] 371,992 [4],[29],[38] 371,992 [4],[29],[38] 371,992 [4],[29],[38]  
Amortized Cost $ 22,800,000 [10],[24],[37]             $ 22,800,000 [4],[29],[38]            
Fair Value 18,800,000 [3],[10],[24],[37]             18,500,000 [4],[5],[29],[38]            
Investment, Identifier [Axis]: One Call Care Management Inc, Preferred Stock B                            
Fair Value $ 7,700,000             $ 7,700,000 [39]           0 [39]
Investment, Identifier [Axis]: One Call Care Management Inc, Preferred Stock B, Health Care Equipment & Services                            
Rate, PIK 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [9],[10],[37] 9.00% [4],[11],[38] 9.00% [4],[11],[38] 9.00% [4],[11],[38] 9.00% [4],[11],[38] 9.00% [4],[11],[38] 9.00% [4],[11],[38]  
Principal (in shares) | shares 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [10],[37] 7,672,347 [4],[38] 7,672,347 [4],[38] 7,672,347 [4],[38] 7,672,347 [4],[38] 7,672,347 [4],[38] 7,672,347 [4],[38]  
Amortized Cost $ 7,900,000 [10],[37]             $ 8,000,000.0 [4],[38]            
Fair Value $ 7,700,000 [3],[10],[37]             $ 7,700,000 [4],[5],[38]            
Investment, Identifier [Axis]: One Call Care Management Inc, Preferred Stock B, Health Care Equipment & Services | Maximum                            
Rate, PIK [9],[10],[37] 9.00% 9.00% 9.00% 9.00% 9.00% 9.00% 9.00%              
Investment, Identifier [Axis]: Opendoor Labs Inc, Structured Mezzanine, Real Estate Management & Development                            
Rate, stated interest rate 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [9],[10],[27] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11] 10.00% [4],[6],[11]  
Principal Amount $ 10,500,000 [10],[12],[27]             $ 42,600,000 [4],[6],[13]            
Amortized Cost 10,500,000 [10],[27]             42,600,000 [4],[6]            
Fair Value $ 10,200,000 [3],[10],[27]             $ 40,900,000 [4],[5],[6]            
Investment, Identifier [Axis]: Optio Invest, Private Equity, Financial Services                            
Principal (in shares) | shares 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 2,911,438 [10],[12],[27] 810,922 [4],[6],[13],[29] 810,922 [4],[6],[13],[29] 810,922 [4],[6],[13],[29] 810,922 [4],[6],[13],[29] 810,922 [4],[6],[13],[29] 810,922 [4],[6],[13],[29]  
Amortized Cost $ 3,700,000 [10],[27]             $ 1,000,000.0 [4],[6],[29]            
Fair Value $ 3,800,000 [3],[10],[27]             $ 1,000,000.0 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42]  
Floor 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42]  
Principal Amount $ 93,600,000 [10],[12],[14],[19],[20],[43]                   € 93.9 [4],[13],[16],[21],[22],[42]      
Amortized Cost 93,100,000 [10],[14],[19],[20],[43]             $ 93,300,000 [4],[16],[21],[22],[42]            
Fair Value $ 93,600,000 [3],[10],[14],[19],[20],[43]             $ 94,800,000 [4],[5],[16],[21],[22],[42]            
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 8,000,000.0 [10],[12],[14],[17],[19],[20],[43]                   € 8.0 [13],[18]      
Amortized Cost 8,000,000.0 [10],[14],[17],[19],[20],[43]             $ 8,000,000.0 [18]            
Fair Value $ 8,000,000.0 [3],[10],[14],[17],[19],[20],[43]             $ 8,100,000 [5],[18]            
Investment, Identifier [Axis]: Oxford Global Resources LLC, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [9],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 7,600,000 [12],[17]                   € 7.6 [13],[18]      
Amortized Cost 7,600,000 [17]             $ 7,600,000 [18]            
Fair Value 7,600,000 [3],[17]             7,600,000 [5],[18]            
Investment, Identifier [Axis]: PRG III LLC, Preferred Stock, Series A PIK                            
Fair Value $ 143,000,000.0             $ 120,700,000           105,700,000
Investment, Identifier [Axis]: PRG III LLC, Preferred Stock, Series A PIK, Media & Entertainment                            
Principal (in shares) | shares 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [10],[24],[32] 434,250 [4],[29],[33] 434,250 [4],[29],[33] 434,250 [4],[29],[33] 434,250 [4],[29],[33] 434,250 [4],[29],[33] 434,250 [4],[29],[33]  
Amortized Cost $ 18,100,000 [10],[24],[32]             $ 18,100,000 [4],[29],[33]            
Fair Value 143,000,000.0 [3],[10],[24],[32]             120,700,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: PRG III LLC, Preferred Stock, Series B PIK                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: PRG III LLC, Preferred Stock, Series B PIK, Media & Entertainment                            
Principal (in shares) | shares 140 [10],[24],[32] 140 [10],[24],[32] 140 [10],[24],[32] 140 [10],[24],[32] 140 [10],[24],[32] 140 [10],[24],[32] 140 [10],[24],[32] 140 [4],[29],[33] 140 [4],[29],[33] 140 [4],[29],[33] 140 [4],[29],[33] 140 [4],[29],[33] 140 [4],[29],[33]  
Amortized Cost $ 0 [10],[24],[32]             $ 0 [4],[29],[33]            
Fair Value $ 0 [3],[10],[24],[32]             $ 0 [4],[5],[29],[33]            
Investment, Identifier [Axis]: PSKW LLC (dba ConnectiveRx), Health Care Equipment & Services                            
Rate, basis spread on variable rate 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [9],[10],[14],[15],[20],[35],[43] 6.25% [4],[11],[16],[22],[34],[42],[44] 6.25% [4],[11],[16],[22],[34],[42],[44] 6.25% [4],[11],[16],[22],[34],[42],[44] 6.25% [4],[11],[16],[22],[34],[42],[44] 6.25% [4],[11],[16],[22],[34],[42],[44] 6.25% [4],[11],[16],[22],[34],[42],[44]  
Floor 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [9],[10],[14],[15],[20],[35],[43] 1.00% [4],[16],[22],[34],[42],[44] 1.00% [4],[16],[22],[34],[42],[44] 1.00% [4],[16],[22],[34],[42],[44] 1.00% [4],[16],[22],[34],[42],[44] 1.00% [4],[16],[22],[34],[42],[44] 1.00% [4],[16],[22],[34],[42],[44]  
Principal Amount $ 232,200,000 [10],[12],[14],[15],[20],[35],[43]                   € 242.8 [4],[13],[16],[22],[34],[42],[44]      
Amortized Cost 227,900,000 [10],[14],[15],[20],[35],[43]             $ 237,900,000 [4],[16],[22],[34],[42],[44]            
Fair Value $ 232,200,000 [3],[10],[14],[15],[20],[35],[43]             $ 242,800,000 [4],[5],[16],[22],[34],[42],[44]            
Investment, Identifier [Axis]: Parts Town LLC, Consumer Discretionary Distribution & Retail                            
Rate, basis spread on variable rate 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [9],[10],[43] 5.98% [4],[11],[42] 5.98% [4],[11],[42] 5.98% [4],[11],[42] 5.98% [4],[11],[42] 5.98% [4],[11],[42] 5.98% [4],[11],[42]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 74,400,000 [10],[12],[43]                   € 74.5 [4],[13],[42]      
Amortized Cost 73,800,000 [10],[43]             $ 74,000,000.0 [4],[42]            
Fair Value $ 74,400,000 [3],[10],[43]             $ 74,300,000 [4],[5],[42]            
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 2,300,000 [10],[12]                   € 1.3 [4],[13]      
Amortized Cost 2,300,000 [10]             $ 1,300,000 [4]            
Fair Value $ 2,300,000 [3],[10]             $ 1,300,000 [4],[5]            
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [9],[10] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11] 5.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 69,000,000.0 [10],[12]                   € 69.2 [4],[13]      
Amortized Cost 68,300,000 [10]             $ 68,500,000 [4]            
Fair Value $ 69,000,000.0 [3],[10]             $ 68,700,000 [4],[5]            
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 2,000,000.0 [10],[12],[17]                   € 3.0 [13],[18]      
Amortized Cost 2,000,000.0 [10],[17]             $ 3,000,000.0 [18]            
Fair Value $ 2,000,000.0 [3],[10],[17]             $ 2,900,000 [5],[18]            
Investment, Identifier [Axis]: PartsSource Inc, Health Care Equipment & Services 4                            
Rate, basis spread on variable rate 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [9],[10],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 20,500,000 [10],[12],[17]                   € 20.5 [13],[18]      
Amortized Cost 20,500,000 [10],[17]             $ 20,500,000 [18]            
Fair Value $ 20,500,000 [3],[10],[17]             $ 20,300,000 [5],[18]            
Investment, Identifier [Axis]: PayPal Europe Sarl et Cie SCA, Private Equity, Financial Services                            
Principal (in shares) | shares 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 48,398,136 [10],[12],[27] 55,605,051 [4],[6],[13],[29] 55,605,051 [4],[6],[13],[29] 55,605,051 [4],[6],[13],[29] 55,605,051 [4],[6],[13],[29] 55,605,051 [4],[6],[13],[29] 55,605,051 [4],[6],[13],[29]  
Amortized Cost $ 52,400,000 [10],[27]             $ 59,800,000 [4],[6],[29]            
Fair Value $ 54,100,000 [3],[10],[27]             $ 59,600,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 1                            
Rate, basis spread on variable rate 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [9],[10],[35] 8.00% [4],[11],[34] 8.00% [4],[11],[34] 8.00% [4],[11],[34] 8.00% [4],[11],[34] 8.00% [4],[11],[34] 8.00% [4],[11],[34]  
Floor 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [9],[10],[35] 1.00% [4],[34] 1.00% [4],[34] 1.00% [4],[34] 1.00% [4],[34] 1.00% [4],[34] 1.00% [4],[34]  
Principal Amount $ 175,000,000.0 [10],[12],[35]             $ 175,000,000.0 [4],[13],[34]            
Amortized Cost 167,400,000 [10],[35]             167,100,000 [4],[34]            
Fair Value $ 174,900,000 [3],[10],[35]             $ 175,000,000.0 [4],[5],[34]            
Investment, Identifier [Axis]: Peraton Corp, Capital Goods 2                            
Rate, basis spread on variable rate 7.75% [9],[10] 7.75% [9],[10] 7.75% [9],[10] 7.75% [9],[10] 7.75% [9],[10] 7.75% [9],[10] 7.75% [9],[10] 7.75% [4],[11] 7.75% [4],[11] 7.75% [4],[11] 7.75% [4],[11] 7.75% [4],[11] 7.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 129,800,000 [10],[12]             $ 129,800,000 [4],[13]            
Amortized Cost 124,900,000 [10]             124,800,000 [4]            
Fair Value $ 129,700,000 [3],[10]             $ 129,500,000 [4],[5]            
Investment, Identifier [Axis]: Performance Health Holdings Inc, Health Care Equipment & Services                            
Rate, basis spread on variable rate 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [9],[10],[15],[19],[43] 5.75% [4],[11],[21],[42],[44] 5.75% [4],[11],[21],[42],[44] 5.75% [4],[11],[21],[42],[44] 5.75% [4],[11],[21],[42],[44] 5.75% [4],[11],[21],[42],[44] 5.75% [4],[11],[21],[42],[44]  
Floor 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [9],[10],[15],[19],[43] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44] 1.00% [4],[21],[42],[44]  
Principal Amount $ 93,200,000 [10],[12],[15],[19],[43]                   € 93.2 [4],[13],[21],[42],[44]      
Amortized Cost 92,600,000 [10],[15],[19],[43]             $ 92,500,000 [4],[21],[42],[44]            
Fair Value $ 94,100,000 [3],[10],[15],[19],[43]             $ 92,900,000 [4],[5],[21],[42],[44]            
Investment, Identifier [Axis]: Petroplex Acidizing Inc, Trade Claim, Energy                            
Principal (in shares) | shares 589,656 [10],[24] 589,656 [10],[24] 589,656 [10],[24] 589,656 [10],[24] 589,656 [10],[24] 589,656 [10],[24] 589,656 [10],[24] 589,656 [4],[29] 589,656 [4],[29] 589,656 [4],[29] 589,656 [4],[29] 589,656 [4],[29] 589,656 [4],[29]  
Amortized Cost $ 600,000 [10],[24]             $ 600,000 [4],[29]            
Fair Value $ 300,000 [3],[10],[24]             $ 300,000 [4],[5],[29]            
Investment, Identifier [Axis]: Polyconcept North America Inc, Class A - 1 Units, Household & Personal Products                            
Principal (in shares) | shares 30,000 [10] 30,000 [10] 30,000 [10] 30,000 [10] 30,000 [10] 30,000 [10] 30,000 [10] 30,000 [4],[29] 30,000 [4],[29] 30,000 [4],[29] 30,000 [4],[29] 30,000 [4],[29] 30,000 [4],[29]  
Amortized Cost $ 3,000,000.0 [10]             $ 3,000,000.0 [4],[29]            
Fair Value $ 7,100,000 [3],[10]             7,100,000 [4],[5],[29]            
Investment, Identifier [Axis]: Prime ST LLC, Private Equity                            
Fair Value               $ 0           0
Investment, Identifier [Axis]: Prime ST LLC, Private Equity, Equity Real Estate Investment Trusts (REITs)                            
Principal (in shares) | shares 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [10],[12],[24],[27],[32] 5,612,193 [4],[6],[13],[29],[33] 5,612,193 [4],[6],[13],[29],[33] 5,612,193 [4],[6],[13],[29],[33] 5,612,193 [4],[6],[13],[29],[33] 5,612,193 [4],[6],[13],[29],[33] 5,612,193 [4],[6],[13],[29],[33]  
Amortized Cost $ 7,300,000 [10],[24],[27],[32]             $ 7,300,000 [4],[6],[29],[33]            
Fair Value $ 0 [3],[10],[24],[27],[32]             0 [4],[5],[6],[29],[33]            
Investment, Identifier [Axis]: Prime ST LLC, Structured Mezzanine                            
Fair Value               $ 33,100,000           43,500,000
Investment, Identifier [Axis]: Prime ST LLC, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs)                            
Rate, stated interest rate 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [9],[10],[27],[32] 5.00% [4],[6],[11],[33] 5.00% [4],[6],[11],[33] 5.00% [4],[6],[11],[33] 5.00% [4],[6],[11],[33] 5.00% [4],[6],[11],[33] 5.00% [4],[6],[11],[33]  
Rate, PIK [9],[10],[27],[32] 6.00% 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%              
Principal Amount $ 58,900,000 [10],[12],[27],[32]             $ 58,900,000 [4],[6],[13],[33]            
Amortized Cost 57,300,000 [10],[27],[32]             57,200,000 [4],[6],[33]            
Fair Value $ 34,700,000 [3],[10],[27],[32]             $ 33,100,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: Prime ST LLC, Structured Mezzanine, Equity Real Estate Investment Trusts (REITs) | Maximum                            
Rate, PIK 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [9],[10],[27],[32] 6.00% [4],[6],[11],[33] 6.00% [4],[6],[11],[33] 6.00% [4],[6],[11],[33] 6.00% [4],[6],[11],[33] 6.00% [4],[6],[11],[33] 6.00% [4],[6],[11],[33]  
Investment, Identifier [Axis]: Prime St LLC, Private Equity                            
Fair Value $ 0             $ 0            
Investment, Identifier [Axis]: Prime St LLC, Structured Mezzanine                            
Fair Value 34,700,000             33,100,000            
Investment, Identifier [Axis]: Production Resource Group LLC 1                            
Fair Value 171,600,000             168,600,000           152,500,000
Investment, Identifier [Axis]: Production Resource Group LLC 2                            
Fair Value 100,000             100,000           100,000
Investment, Identifier [Axis]: Production Resource Group LLC 3                            
Fair Value 63,200,000             63,600,000           68,100,000
Investment, Identifier [Axis]: Production Resource Group LLC 4                            
Fair Value $ 34,600,000             $ 34,800,000           31,300,000
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 1                            
Rate, basis spread on variable rate 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [9],[10],[32] 5.00% [4],[11],[33] 5.00% [4],[11],[33] 5.00% [4],[11],[33] 5.00% [4],[11],[33] 5.00% [4],[11],[33] 5.00% [4],[11],[33]  
Rate, PIK 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 94,900,000 [10],[12],[32]                   € 95.5 [4],[13],[33]      
Amortized Cost 94,000,000.0 [10],[32]             $ 94,300,000 [4],[33]            
Fair Value $ 97,800,000 [3],[10],[32]             $ 98,400,000 [4],[5],[33]            
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 1 | Maximum                            
Rate, PIK 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [9],[10],[32] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33] 3.10% [4],[11],[33]  
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 2                            
Rate, basis spread on variable rate 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [9],[10],[32] 3.00% [4],[11],[33] 3.00% [4],[11],[33] 3.00% [4],[11],[33] 3.00% [4],[11],[33] 3.00% [4],[11],[33] 3.00% [4],[11],[33]  
Rate, PIK 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33]  
Floor 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [9],[10],[32] 0.30% [4],[33] 0.30% [4],[33] 0.30% [4],[33] 0.30% [4],[33] 0.30% [4],[33] 0.30% [4],[33]  
Principal Amount $ 168,200,000 [10],[12],[32]                   € 165.3 [4],[13],[33]      
Amortized Cost 166,400,000 [10],[32]             $ 162,700,000 [4],[33]            
Fair Value $ 171,600,000 [3],[10],[32]             $ 168,600,000 [4],[5],[33]            
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 2 | Maximum                            
Rate, PIK 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33]  
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 3                            
Variable rate, PIK 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 100,000 [10],[12],[32]                   € 0.1 [4],[13],[33]      
Amortized Cost 100,000 [10],[32]             $ 100,000 [4],[33]            
Fair Value $ 100,000 [3],[10],[32]             $ 100,000 [4],[5],[33]            
Investment, Identifier [Axis]: Production Resource Group LLC, Media & Entertainment 3 | Maximum                            
Variable rate, PIK 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [9],[10],[32] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33] 5.50% [4],[11],[33]  
Investment, Identifier [Axis]: Proserv Acquisition LLC, Class A Common Units                            
Fair Value $ 3,300,000             $ 3,500,000           1,100,000
Investment, Identifier [Axis]: Proserv Acquisition LLC, Class A Common Units, Energy                            
Principal (in shares) | shares 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [10],[24],[27],[37] 2,635,005 [4],[6],[29],[38] 2,635,005 [4],[6],[29],[38] 2,635,005 [4],[6],[29],[38] 2,635,005 [4],[6],[29],[38] 2,635,005 [4],[6],[29],[38] 2,635,005 [4],[6],[29],[38]  
Amortized Cost $ 33,500,000 [10],[24],[27],[37]             $ 33,500,000 [4],[6],[29],[38]            
Fair Value 3,300,000 [3],[10],[24],[27],[37]             3,500,000 [4],[5],[6],[29],[38]            
Investment, Identifier [Axis]: Proserv Acquisition LLC, Class A Preferred Units                            
Fair Value $ 9,500,000             $ 9,500,000           9,500,000
Investment, Identifier [Axis]: Proserv Acquisition LLC, Class A Preferred Units, Energy                            
Principal (in shares) | shares 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [10],[24],[27],[37] 837,780 [4],[6],[29],[38] 837,780 [4],[6],[29],[38] 837,780 [4],[6],[29],[38] 837,780 [4],[6],[29],[38] 837,780 [4],[6],[29],[38] 837,780 [4],[6],[29],[38]  
Amortized Cost $ 5,400,000 [10],[24],[27],[37]             $ 5,400,000 [4],[6],[29],[38]            
Fair Value $ 9,500,000 [3],[10],[24],[27],[37]             $ 9,500,000 [4],[5],[6],[29],[38]            
Investment, Identifier [Axis]: Pure Fishing Inc, Consumer Durables & Apparel                            
Rate, basis spread on variable rate 4.50% [9],[10] 4.50% [9],[10] 4.50% [9],[10] 4.50% [9],[10] 4.50% [9],[10] 4.50% [9],[10] 4.50% [9],[10] 4.50% [4],[11] 4.50% [4],[11] 4.50% [4],[11] 4.50% [4],[11] 4.50% [4],[11] 4.50% [4],[11]  
Floor 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [9],[10] 0.00% [4] 0.00% [4] 0.00% [4] 0.00% [4] 0.00% [4] 0.00% [4]  
Principal Amount $ 33,300,000 [10],[12]                   € 33.4 [4],[13]      
Amortized Cost 32,900,000 [10]             $ 33,000,000.0 [4]            
Fair Value 30,000,000.0 [3],[10]             30,000,000.0 [4],[5]            
Investment, Identifier [Axis]: Quoizel LLC 1                            
Fair Value 6,700,000             6,500,000            
Investment, Identifier [Axis]: Quoizel LLC 2                            
Fair Value 7,000,000.0             6,800,000            
Investment, Identifier [Axis]: Quoizel, LLC (fka NBG Home), Common Stock                            
Fair Value $ 10,100,000             10,200,000            
Investment, Identifier [Axis]: Quoizel, LLC 1                            
Fair Value               6,500,000           0
Investment, Identifier [Axis]: Quoizel, LLC 2                            
Fair Value               6,800,000           0
Investment, Identifier [Axis]: Quoizel, LLC, Common Stock                            
Fair Value               $ 10,200,000           0
Investment, Identifier [Axis]: Quoizel, LLC, Common Stock, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares [10],[24],[32] 4,563 4,563 4,563 4,563 4,563 4,563 4,563              
Amortized Cost [10],[24],[32] $ 8,300,000                          
Fair Value [3],[10],[24],[32] $ 10,100,000                          
Investment, Identifier [Axis]: Quoizel, LLC, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares [4],[29],[33]               4,563 4,563 4,563 4,563 4,563 4,563  
Amortized Cost [4],[29],[33]               $ 8,300,000            
Fair Value [4],[5],[29],[33]               $ 10,200,000            
Investment, Identifier [Axis]: Quoizel, LLC, Consumer Durables & Apparel 1                            
Variable rate, PIK 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 6,700,000 [10],[12],[32]             $ 6,500,000 [4],[13],[33]            
Amortized Cost 6,700,000 [10],[32]             6,500,000 [4],[33]            
Fair Value $ 6,700,000 [3],[10],[32]             $ 6,500,000 [4],[5],[33]            
Investment, Identifier [Axis]: Quoizel, LLC, Consumer Durables & Apparel 1 | Maximum                            
Variable rate, PIK 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33]  
Investment, Identifier [Axis]: Quoizel, LLC, Consumer Durables & Apparel 2                            
Variable rate, PIK 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 7,000,000.0 [10],[12],[32]             $ 6,800,000 [4],[13],[33]            
Amortized Cost 7,000,000.0 [10],[32]             6,800,000 [4],[33]            
Fair Value $ 7,000,000.0 [3],[10],[32]             $ 6,800,000 [4],[5],[33]            
Investment, Identifier [Axis]: Quoizel, LLC, Consumer Durables & Apparel 2 | Maximum                            
Variable rate, PIK 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [9],[10],[32] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33] 6.50% [4],[11],[33]  
Investment, Identifier [Axis]: Quorum Health Corp, Private Equity                            
Fair Value $ 8,100,000             $ 7,700,000           0
Investment, Identifier [Axis]: Quorum Health Corp, Private Equity, Health Care Equipment & Services                            
Principal (in shares) | shares 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 1,840,376 [10],[24],[32] 920,188 [4],[29],[33] 920,188 [4],[29],[33] 920,188 [4],[29],[33] 920,188 [4],[29],[33] 920,188 [4],[29],[33] 920,188 [4],[29],[33]  
Amortized Cost $ 1,800,000 [10],[24],[32]             $ 900,000 [4],[29],[33]            
Fair Value 8,100,000 [3],[10],[24],[32]             7,700,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: Quorum Health Corp, Trade Claim                            
Fair Value $ 900,000             $ 900,000 [36]           0 [36]
Investment, Identifier [Axis]: Quorum Health Corp, Trade Claim, Health Care Equipment & Services                            
Principal (in shares) | shares 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [10],[24],[32] 8,301,000 [4],[29],[33] 8,301,000 [4],[29],[33] 8,301,000 [4],[29],[33] 8,301,000 [4],[29],[33] 8,301,000 [4],[29],[33] 8,301,000 [4],[29],[33]  
Amortized Cost $ 700,000 [10],[24],[32]             $ 700,000 [4],[29],[33]            
Fair Value 900,000 [3],[10],[24],[32]             900,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: Quorum Health Corp, Trust Initial Funding Units                            
Fair Value $ 100,000             $ 100,000 [36]           0 [36]
Investment, Identifier [Axis]: Quorum Health Corp, Trust Initial Funding Units, Health Care Equipment & Services                            
Principal (in shares) | shares 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [10],[24],[32] 143,400 [4],[29],[33] 143,400 [4],[29],[33] 143,400 [4],[29],[33] 143,400 [4],[29],[33] 143,400 [4],[29],[33] 143,400 [4],[29],[33]  
Amortized Cost $ 200,000 [10],[24],[32]             $ 200,000 [4],[29],[33]            
Fair Value $ 100,000 [3],[10],[24],[32]             $ 100,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [9],[10],[14],[15] 5.50% [4],[11],[16],[44] 5.50% [4],[11],[16],[44] 5.50% [4],[11],[16],[44] 5.50% [4],[11],[16],[44] 5.50% [4],[11],[16],[44] 5.50% [4],[11],[16],[44]  
Floor 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [9],[10],[14],[15] 0.80% [4],[16],[44] 0.80% [4],[16],[44] 0.80% [4],[16],[44] 0.80% [4],[16],[44] 0.80% [4],[16],[44] 0.80% [4],[16],[44]  
Principal Amount $ 186,700,000 [10],[12],[14],[15]                   € 187.2 [4],[13],[16],[44]      
Amortized Cost 182,500,000 [10],[14],[15]             $ 183,400,000 [4],[16],[44]            
Fair Value $ 186,600,000 [3],[10],[14],[15]             $ 186,500,000 [4],[5],[16],[44]            
Investment, Identifier [Axis]: RSC Insurance Brokerage Inc, Insurance 2                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 7,700,000 [12],[17]                   € 7.7 [13],[18]      
Amortized Cost 7,600,000 [17]             $ 7,600,000 [18]            
Fair Value $ 7,700,000 [3],[17]             $ 7,700,000 [5],[18]            
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 1                            
Rate, basis spread on variable rate 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 1,400,000 [10],[12]                   € 1.4 [4],[13]      
Amortized Cost 1,400,000 [10]             $ 1,400,000 [4]            
Fair Value $ 1,400,000 [3],[10]             $ 1,400,000 [4],[5]            
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 2                            
Rate, basis spread on variable rate 6.53% [9],[43] 6.53% [9],[43] 6.53% [9],[43] 6.53% [9],[43] 6.53% [9],[43] 6.53% [9],[43] 6.53% [9],[43] 6.53% [11],[42] 6.53% [11],[42] 6.53% [11],[42] 6.53% [11],[42] 6.53% [11],[42] 6.53% [11],[42]  
Floor 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [9],[43] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42] 0.80% [42]  
Principal Amount $ 1,000,000.0 [12],[43]                   € 1.0 [13],[42]      
Amortized Cost 1,000,000.0 [43]             $ 1,000,000.0 [42]            
Fair Value $ 1,000,000.0 [3],[43]             $ 1,000,000.0 [5],[42]            
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 3                            
Rate, basis spread on variable rate 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [9],[14],[15] 6.75% [11],[16],[44] 6.75% [11],[16],[44] 6.75% [11],[16],[44] 6.75% [11],[16],[44] 6.75% [11],[16],[44] 6.75% [11],[16],[44]  
Floor 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [9],[14],[15] 0.80% [16],[44] 0.80% [16],[44] 0.80% [16],[44] 0.80% [16],[44] 0.80% [16],[44] 0.80% [16],[44]  
Principal Amount $ 66,200,000 [12],[14],[15]                   € 66.4 [13],[16],[44]      
Amortized Cost 66,200,000 [14],[15]             $ 66,400,000 [16],[44]            
Fair Value $ 66,200,000 [3],[14],[15]             $ 67,700,000 [5],[16],[44]            
Investment, Identifier [Axis]: Radwell International LLC/PA, Capital Goods 4                            
Rate, basis spread on variable rate 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [9],[10],[17] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 5,500,000 [10],[12],[17]                   € 5.5 [13],[18]      
Amortized Cost 5,500,000 [10],[17]             $ 5,500,000 [18]            
Fair Value $ 5,500,000 [3],[10],[17]             $ 5,500,000 [5],[18]            
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [9],[10],[35] 6.25% [4],[11],[29],[30],[34] 6.25% [4],[11],[29],[30],[34] 6.25% [4],[11],[29],[30],[34] 6.25% [4],[11],[29],[30],[34] 6.25% [4],[11],[29],[30],[34] 6.25% [4],[11],[29],[30],[34]  
Rate, PIK [4],[11],[29],[30],[34]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Floor 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [9],[10],[35] 0.00% [4],[29],[30],[34] 0.00% [4],[29],[30],[34] 0.00% [4],[29],[30],[34] 0.00% [4],[29],[30],[34] 0.00% [4],[29],[30],[34] 0.00% [4],[29],[30],[34]  
Principal Amount $ 43,700,000 [10],[12],[35]                   € 44.0 [4],[13],[29],[30],[34]      
Amortized Cost 42,100,000 [10],[35]             $ 42,700,000 [4],[29],[30],[34]            
Fair Value $ 39,400,000 [3],[10],[35]             $ 400,000 [4],[5],[29],[30],[34]            
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services 1 | Maximum                            
Rate, PIK [4],[11],[29],[30],[34]               6.30% 6.30% 6.30% 6.30% 6.30% 6.30%  
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [9],[10],[24],[25],[35] 6.25% [4],[11],[34] 6.25% [4],[11],[34] 6.25% [4],[11],[34] 6.25% [4],[11],[34] 6.25% [4],[11],[34] 6.25% [4],[11],[34]  
Rate, PIK [9],[10],[24],[25],[35] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [9],[10],[24],[25],[35] 0.00% [4],[34] 0.00% [4],[34] 0.00% [4],[34] 0.00% [4],[34] 0.00% [4],[34] 0.00% [4],[34]  
Principal Amount $ 44,000,000.0 [10],[12],[24],[25],[35]                   € 44.0 [4],[13],[34]      
Amortized Cost 42,200,000 [10],[24],[25],[35]             $ 42,200,000 [4],[34]            
Fair Value $ 400,000 [3],[10],[24],[25],[35]             $ 39,700,000 [4],[5],[34]            
Investment, Identifier [Axis]: Reliant Rehab Hospital Cincinnati LLC, Health Care Equipment & Services 2 | Maximum                            
Rate, PIK [9],[10],[24],[25],[35] 6.30% 6.30% 6.30% 6.30% 6.30% 6.30% 6.30%              
Investment, Identifier [Axis]: Residential Opportunities I LLC, Private Equity, Real Estate Management & Development                            
Principal (in shares) | shares [10],[12] 4,213,350 4,213,350 4,213,350 4,213,350 4,213,350 4,213,350 4,213,350              
Amortized Cost [10] $ 4,200,000                          
Fair Value [3],[10] $ 6,200,000                          
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [9],[10],[43] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42] 5.50% [4],[11],[42]  
Floor 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42] 1.00% [4],[42]  
Principal Amount $ 33,000,000.0 [10],[12],[43]                   € 33.1 [4],[13],[42]      
Amortized Cost 32,600,000 [10],[43]             $ 32,700,000 [4],[42]            
Fair Value $ 33,000,000.0 [3],[10],[43]             $ 33,100,000 [4],[5],[42]            
Investment, Identifier [Axis]: Revere Superior Holdings Inc, Software & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 3,200,000 [12],[17]                   € 3.2 [13],[18]      
Amortized Cost 3,200,000 [17]             $ 3,200,000 [18]            
Fair Value $ 3,200,000 [3],[17]             $ 3,200,000 [5],[18]            
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [9],[10],[14],[43] 6.25% [4],[11],[16],[42] 6.25% [4],[11],[16],[42] 6.25% [4],[11],[16],[42] 6.25% [4],[11],[16],[42] 6.25% [4],[11],[16],[42] 6.25% [4],[11],[16],[42]  
Floor 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [9],[10],[14],[43] 1.00% [4],[16],[42] 1.00% [4],[16],[42] 1.00% [4],[16],[42] 1.00% [4],[16],[42] 1.00% [4],[16],[42] 1.00% [4],[16],[42]  
Principal Amount $ 28,200,000 [10],[12],[14],[43]                   € 28.3 [4],[13],[16],[42]      
Amortized Cost 27,700,000 [10],[14],[43]             $ 27,800,000 [4],[16],[42]            
Fair Value $ 28,200,000 [3],[10],[14],[43]             $ 28,300,000 [4],[5],[16],[42]            
Investment, Identifier [Axis]: Rise Baking Company, Food, Beverage & Tobacco 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 5,300,000 [12],[17]                   € 5.3 [13],[18]      
Amortized Cost 5,200,000 [17]             $ 5,200,000 [18]            
Fair Value 5,300,000 [3],[17]             5,300,000 [5],[18]            
Investment, Identifier [Axis]: Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity                            
Fair Value $ 234,500,000             $ 241,000,000.0           261,200,000
Investment, Identifier [Axis]: Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity, Financial Services                            
Principal (in shares) | shares 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [10],[12],[32] 220,778,388 [4],[13],[33] 220,778,388 [4],[13],[33] 220,778,388 [4],[13],[33] 220,778,388 [4],[13],[33] 220,778,388 [4],[13],[33] 220,778,388 [4],[13],[33]  
Amortized Cost $ 236,500,000 [10],[32]             $ 236,500,000 [4],[33]            
Fair Value $ 234,500,000 [3],[10],[32]             $ 241,000,000.0 [4],[5],[33]            
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 1                            
Rate, basis spread on variable rate 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [9],[10],[43] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42] 5.25% [11],[42]  
Floor 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42] 1.00% [42]  
Principal Amount $ 8,100,000 [10],[12],[43]                   € 6.0 [13],[42]      
Amortized Cost 8,000,000.0 [10],[43]             $ 6,000,000.0 [42]            
Fair Value $ 8,100,000 [3],[10],[43]             $ 6,000,000.0 [5],[42]            
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 2                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 400,000 [10],[12]                   € 1.8 [4],[13]      
Amortized Cost 400,000 [10]             $ 1,800,000 [4]            
Fair Value $ 400,000 [3],[10]             $ 1,800,000 [4],[5]            
Investment, Identifier [Axis]: SAMBA Safety Inc, Software & Services 3                            
Rate, basis spread on variable rate 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [9],[10],[17] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18] 5.25% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 2,100,000 [10],[12],[17]                   € 0.6 [13],[18]      
Amortized Cost 2,100,000 [10],[17]             $ 600,000 [18]            
Fair Value $ 2,100,000 [3],[10],[17]             $ 600,000 [5],[18]            
Investment, Identifier [Axis]: STV Group Inc, Capital Goods 1                            
Rate, basis spread on variable rate [9],[10],[19] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[10],[19] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[19] $ 41,500,000                          
Amortized Cost [10],[19] 41,100,000                          
Fair Value [3],[10],[19] $ 41,100,000                          
Investment, Identifier [Axis]: STV Group Inc, Capital Goods 2                            
Rate, basis spread on variable rate [9],[10],[17],[19] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[10],[17],[19] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12],[17],[19] $ 11,900,000                          
Amortized Cost [10],[17],[19] 11,900,000                          
Fair Value [3],[10],[17],[19] $ 11,700,000                          
Investment, Identifier [Axis]: STV Group Inc, Capital Goods 3                            
Rate, basis spread on variable rate [9],[17] 5.25% 5.25% 5.25% 5.25% 5.25% 5.25% 5.25%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 8,300,000                          
Amortized Cost [17] 8,300,000                          
Fair Value [3],[17] $ 8,300,000                          
Investment, Identifier [Axis]: Safe-Guard Products International LLC, Financial Services                            
Rate, basis spread on variable rate 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [9],[19] 5.50% [11],[21] 5.50% [11],[21] 5.50% [11],[21] 5.50% [11],[21] 5.50% [11],[21] 5.50% [11],[21]  
Floor 0.50% [9],[19] 0.50% [9],[19] 0.50% [9],[19] 0.50% [9],[19] 0.50% [9],[19] 0.50% [9],[19] 0.50% [9],[19] 0.50% [21] 0.50% [21] 0.50% [21] 0.50% [21] 0.50% [21] 0.50% [21]  
Principal Amount $ 100,000 [12],[19]                   € 0.1 [13],[21]      
Amortized Cost 100,000 [19]             $ 100,000 [21]            
Fair Value $ 100,000 [3],[19]             $ 100,000 [5],[21]            
Investment, Identifier [Axis]: Saluda Grade Alternative Mortgage Trust 2022-BC2, Structured Mezzanine, Real Estate Management & Development                            
Rate, stated interest rate 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [9],[10],[27] 18.00% [4],[6],[11] 18.00% [4],[6],[11] 18.00% [4],[6],[11] 18.00% [4],[6],[11] 18.00% [4],[6],[11] 18.00% [4],[6],[11]  
Principal Amount $ 3,400,000 [10],[12],[27]             $ 3,400,000 [4],[6],[13]            
Amortized Cost 2,400,000 [10],[27]             2,400,000 [4],[6]            
Fair Value $ 2,600,000 [3],[10],[27]             $ 2,700,000 [4],[5],[6]            
Investment, Identifier [Axis]: Saturn Oil & Gas Inc, Common Stock, Energy                            
Principal (in shares) | shares 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [10],[24],[27],[40],[53],[58] 355,993 [4],[6],[29],[41],[54],[55] 355,993 [4],[6],[29],[41],[54],[55] 355,993 [4],[6],[29],[41],[54],[55] 355,993 [4],[6],[29],[41],[54],[55] 355,993 [4],[6],[29],[41],[54],[55] 355,993 [4],[6],[29],[41],[54],[55]  
Amortized Cost $ 700,000 [10],[24],[27],[40],[53],[58]             $ 700,000 [4],[6],[29],[41],[54],[55]            
Fair Value $ 700,000 [3],[10],[24],[27],[40],[53],[58]             $ 600,000 [4],[5],[6],[29],[41],[54],[55]            
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 1                            
Rate, basis spread on variable rate 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [9],[10] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 9,400,000 [10],[12]                   € 9.4 [4],[13]      
Amortized Cost 9,400,000 [10]             $ 9,400,000 [4]            
Fair Value $ 9,400,000 [3],[10]             $ 9,300,000 [4],[5]            
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 2                            
Rate, basis spread on variable rate 5.25% [9],[17] 5.25% [9],[17] 5.25% [9],[17] 5.25% [9],[17] 5.25% [9],[17] 5.25% [9],[17] 5.25% [9],[17] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11] 5.25% [4],[11]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 6,300,000 [12],[17]                   € 0.4 [4],[13]      
Amortized Cost 6,300,000 [17]             $ 300,000 [4]            
Fair Value $ 6,300,000 [3],[17]             $ 400,000 [4],[5]            
Investment, Identifier [Axis]: SavATree LLC, Consumer Services 3                            
Rate, basis spread on variable rate [11],[18]               5.25% 5.25% 5.25% 5.25% 5.25% 5.25%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount | € [13],[18]                     € 6.0      
Amortized Cost [18]               $ 6,000,000.0            
Fair Value [5],[18]               $ 5,900,000            
Investment, Identifier [Axis]: Sequel Youth & Family Services LLC, Health Care Equipment & Services                            
Rate, stated interest rate 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [9],[10],[24],[25] 3.00% [4],[11],[29],[30] 3.00% [4],[11],[29],[30] 3.00% [4],[11],[29],[30] 3.00% [4],[11],[29],[30] 3.00% [4],[11],[29],[30] 3.00% [4],[11],[29],[30]  
Principal Amount $ 57,200,000 [10],[12],[24],[25]                   € 57.2 [4],[13],[29],[30]      
Amortized Cost 8,900,000 [10],[24],[25]             $ 8,900,000 [4],[29],[30]            
Fair Value $ 300,000 [3],[10],[24],[25]             $ 300,000 [4],[5],[29],[30]            
Investment, Identifier [Axis]: Shaw Development LLC, Capital Goods 1                            
Rate, basis spread on variable rate 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [9],[10] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11] 6.00% [4],[11]  
Floor 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4]  
Principal Amount $ 28,800,000 [10],[12]             $ 28,800,000 [4],[13]            
Amortized Cost 28,500,000 [10]             28,500,000 [4]            
Fair Value $ 29,000,000.0 [3],[10]             $ 28,600,000 [4],[5]            
Investment, Identifier [Axis]: Shaw Development LLC, Capital Goods 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [9],[10],[17] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [18] 0.50% [18] 0.50% [18] 0.50% [18] 0.50% [18] 0.50% [18]  
Principal Amount $ 3,400,000 [10],[12],[17]             $ 3,400,000 [13],[18]            
Amortized Cost 3,400,000 [10],[17]             3,400,000 [18]            
Fair Value $ 3,500,000 [3],[10],[17]             $ 3,400,000 [5],[18]            
Investment, Identifier [Axis]: SitusAMC Holdings Corp, Real Estate Management & Development                            
Rate, basis spread on variable rate 5.50% [9],[14] 5.50% [9],[14] 5.50% [9],[14] 5.50% [9],[14] 5.50% [9],[14] 5.50% [9],[14] 5.50% [9],[14] 5.50% [11],[16] 5.50% [11],[16] 5.50% [11],[16] 5.50% [11],[16] 5.50% [11],[16] 5.50% [11],[16]  
Floor 1.00% [9],[14] 1.00% [9],[14] 1.00% [9],[14] 1.00% [9],[14] 1.00% [9],[14] 1.00% [9],[14] 1.00% [9],[14] 1.00% [16] 1.00% [16] 1.00% [16] 1.00% [16] 1.00% [16] 1.00% [16]  
Principal Amount $ 28,200,000 [12],[14]             $ 28,200,000 [13],[16]            
Amortized Cost 28,000,000.0 [14]             28,000,000.0 [16]            
Fair Value $ 28,200,000 [3],[14]             $ 28,200,000 [5],[16]            
Investment, Identifier [Axis]: Solera LLC, Software & Services                            
Rate, basis spread on variable rate 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [9],[10] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11] 9.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 335,900,000 [10],[12]             $ 335,900,000 [4],[13]            
Amortized Cost 322,500,000 [10]             322,100,000 [4]            
Fair Value $ 335,900,000 [3],[10]             $ 335,900,000 [4],[5]            
Investment, Identifier [Axis]: Solina France SASU, Food, Beverage & Tobacco                            
Rate, basis spread on variable rate [4],[6],[11],[42]               6.50% 6.50% 6.50% 6.50% 6.50% 6.50%  
Floor [4],[6],[42]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount [4],[6],[13],[42]               $ 19,500,000            
Amortized Cost [4],[6],[42]               19,000,000.0            
Fair Value [4],[5],[6],[42]               $ 19,700,000            
Investment, Identifier [Axis]: Sorenson Communications LLC, Common Stock, Telecommunication Services                            
Principal (in shares) | shares 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [10],[53],[58] 42,731 [4],[54],[55] 42,731 [4],[54],[55] 42,731 [4],[54],[55] 42,731 [4],[54],[55] 42,731 [4],[54],[55] 42,731 [4],[54],[55]  
Amortized Cost $ 7,100,000 [10],[53],[58]             $ 7,100,000 [4],[54],[55]            
Fair Value $ 6,900,000 [3],[10],[53],[58]             $ 2,900,000 [4],[5],[54],[55]            
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services                            
Rate, basis spread on variable rate [11],[16],[21],[22],[41]               5.50% 5.50% 5.50% 5.50% 5.50% 5.50%  
Floor [16],[21],[22],[41]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[16],[21],[22],[41]               $ 29,600,000            
Amortized Cost [16],[21],[22],[41]               28,400,000            
Fair Value [5],[16],[21],[22],[41]               29,500,000            
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 1                            
Rate, basis spread on variable rate [9],[14],[19],[20],[40] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[14],[19],[20],[40] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount $ 28,500,000 [12],[14],[19],[20],[40]             11,000,000.0 [4],[13],[29],[54],[55]            
Amortized Cost 27,500,000 [14],[19],[20],[40]             8,900,000 [4],[29],[54],[55]            
Fair Value 29,100,000 [3],[14],[19],[20],[40]             10,400,000 [4],[5],[29],[54],[55]            
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 2                            
Principal Amount 11,000,000.0 [10],[12],[24],[53],[58]             43,600,000 [4],[13],[29],[54],[55]            
Amortized Cost 8,900,000 [10],[24],[53],[58]             32,000,000.0 [4],[29],[54],[55]            
Fair Value 10,600,000 [3],[10],[24],[53],[58]             $ 36,000,000.0 [4],[5],[29],[54],[55]            
Investment, Identifier [Axis]: Sorenson Communications LLC, Telecommunication Services 3                            
Principal Amount [10],[12],[24],[53],[58] 43,600,000                          
Amortized Cost [10],[24],[53],[58] 32,000,000.0                          
Fair Value [3],[10],[24],[53],[58] $ 37,600,000                          
Investment, Identifier [Axis]: Source Code LLC, Software & Services                            
Rate, basis spread on variable rate 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [9],[10],[14],[20] 6.50% [4],[11],[16],[22] 6.50% [4],[11],[16],[22] 6.50% [4],[11],[16],[22] 6.50% [4],[11],[16],[22] 6.50% [4],[11],[16],[22] 6.50% [4],[11],[16],[22]  
Floor 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [9],[10],[14],[20] 1.00% [4],[16],[22] 1.00% [4],[16],[22] 1.00% [4],[16],[22] 1.00% [4],[16],[22] 1.00% [4],[16],[22] 1.00% [4],[16],[22]  
Principal Amount $ 55,900,000 [10],[12],[14],[20]             $ 56,000,000.0 [4],[13],[16],[22]            
Amortized Cost 55,200,000 [10],[14],[20]             55,300,000 [4],[16],[22]            
Fair Value $ 55,600,000 [3],[10],[14],[20]             $ 56,000,000.0 [4],[5],[16],[22]            
Investment, Identifier [Axis]: Spins LLC, Software & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [9],[10],[20],[35],[43] 5.50% [4],[11],[22],[34],[42] 5.50% [4],[11],[22],[34],[42] 5.50% [4],[11],[22],[34],[42] 5.50% [4],[11],[22],[34],[42] 5.50% [4],[11],[22],[34],[42] 5.50% [4],[11],[22],[34],[42]  
Floor 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [9],[10],[20],[35],[43] 1.00% [4],[22],[34],[42] 1.00% [4],[22],[34],[42] 1.00% [4],[22],[34],[42] 1.00% [4],[22],[34],[42] 1.00% [4],[22],[34],[42] 1.00% [4],[22],[34],[42]  
Principal Amount $ 59,700,000 [10],[12],[20],[35],[43]             $ 57,400,000 [4],[13],[22],[34],[42]            
Amortized Cost 58,100,000 [10],[20],[35],[43]             55,600,000 [4],[22],[34],[42]            
Fair Value $ 59,700,000 [3],[10],[20],[35],[43]             $ 57,400,000 [4],[5],[22],[34],[42]            
Investment, Identifier [Axis]: Spins LLC, Software & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [9],[10],[17],[20],[35],[43] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [9],[10],[17],[20],[35],[43] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 14,000,000.0 [10],[12],[17],[20],[35],[43]             $ 16,500,000 [13],[18]            
Amortized Cost 14,000,000.0 [10],[17],[20],[35],[43]             16,500,000 [18]            
Fair Value $ 14,000,000.0 [3],[10],[17],[20],[35],[43]             $ 16,500,000 [5],[18]            
Investment, Identifier [Axis]: Spins LLC, Software & Services 3                            
Rate, basis spread on variable rate 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [9],[17] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18] 5.50% [11],[18]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 7,900,000 [12],[17]             $ 7,900,000 [13],[18]            
Amortized Cost 7,900,000 [17]             7,900,000 [18]            
Fair Value $ 7,900,000 [3],[17]             $ 7,900,000 [5],[18]            
Investment, Identifier [Axis]: Spotless Brands LLC, Consumer Services 1                            
Rate, basis spread on variable rate 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.75% [9],[10] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 9,700,000 [10],[12]             $ 12,400,000 [4],[13]            
Amortized Cost 9,500,000 [10]             12,100,000 [4]            
Fair Value $ 9,900,000 [3],[10]             $ 12,400,000 [4],[5]            
Investment, Identifier [Axis]: Spotless Brands LLC, Consumer Services 2                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 12,300,000 [10],[12]             $ 18,700,000 [13],[18]            
Amortized Cost 12,100,000 [10]             18,400,000 [18]            
Fair Value $ 12,500,000 [3],[10]             $ 19,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Spotless Brands LLC, Consumer Services 3                            
Rate, basis spread on variable rate [9],[10],[17] 6.75% 6.75% 6.75% 6.75% 6.75% 6.75% 6.75%              
Floor [9],[10],[17] 1.00% 1.00% 1.00% 1.00% 1.00% 1.00% 1.00%              
Principal Amount [10],[12],[17] $ 9,000,000.0                          
Amortized Cost [10],[17] 9,000,000.0                          
Fair Value [3],[10],[17] $ 9,100,000                          
Investment, Identifier [Axis]: Star Mountain Diversified Credit Income Fund III, LP, Private Equity, Financial Services                            
Principal (in shares) | shares 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [12],[27],[56] 23,500,000 [6],[13],[57] 23,500,000 [6],[13],[57] 23,500,000 [6],[13],[57] 23,500,000 [6],[13],[57] 23,500,000 [6],[13],[57] 23,500,000 [6],[13],[57]  
Amortized Cost $ 23,500,000 [27],[56]             $ 23,500,000 [6],[57]            
Fair Value $ 25,100,000 [3],[27],[56]             $ 24,400,000 [5],[6],[57]            
Investment, Identifier [Axis]: Stuart Weitzman Inc, Common Stock, Consumer Durables & Apparel                            
Principal (in shares) | shares 5,451 [10],[24] 5,451 [10],[24] 5,451 [10],[24] 5,451 [10],[24] 5,451 [10],[24] 5,451 [10],[24] 5,451 [10],[24] 5,451 [4],[29] 5,451 [4],[29] 5,451 [4],[29] 5,451 [4],[29] 5,451 [4],[29] 5,451 [4],[29]  
Amortized Cost $ 0 [10],[24]             $ 0 [4],[29]            
Fair Value $ 0 [3],[10],[24]             $ 0 [4],[5],[29]            
Investment, Identifier [Axis]: Summit Interconnect Inc, Capital Goods                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [9],[10],[14],[19],[20] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42]  
Floor 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [9],[10],[14],[19],[20] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42]  
Principal Amount $ 135,200,000 [10],[12],[14],[19],[20]             $ 135,400,000 [4],[13],[16],[21],[22],[42]            
Amortized Cost 134,300,000 [10],[14],[19],[20]             134,500,000 [4],[16],[21],[22],[42]            
Fair Value $ 126,400,000 [3],[10],[14],[19],[20]             $ 125,300,000 [4],[5],[16],[21],[22],[42]            
Investment, Identifier [Axis]: SunPower Financial, Private Equity, Financial Services                            
Principal (in shares) | shares 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [10],[12],[24],[27] 3,690,938 [4],[6],[13],[29] 3,690,938 [4],[6],[13],[29] 3,690,938 [4],[6],[13],[29] 3,690,938 [4],[6],[13],[29] 3,690,938 [4],[6],[13],[29] 3,690,938 [4],[6],[13],[29]  
Amortized Cost $ 3,700,000 [10],[24],[27]             $ 3,700,000 [4],[6],[29]            
Fair Value $ 4,400,000 [3],[10],[24],[27]             4,500,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc 1                            
Fair Value               0           500,000
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc 2                            
Fair Value               0           2,000,000.0
Investment, Identifier [Axis]: Sungard Availability Services Capital Inc 3                            
Fair Value               $ 0           0
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [4],[11],[29],[30],[42] 5.75% [4],[11],[29],[30],[42] 5.75% [4],[11],[29],[30],[42] 5.75% [4],[11],[29],[30],[42] 5.75% [4],[11],[29],[30],[42] 5.75% [4],[11],[29],[30],[42]  
Floor 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42] 1.00% [4],[29],[30],[42]  
Principal Amount $ 15,700,000 [10],[12],[43]             $ 71,500,000 [4],[13],[29],[30],[42]            
Amortized Cost 15,100,000 [10],[43]             69,800,000 [4],[29],[30],[42]            
Fair Value $ 15,700,000 [3],[10],[43]             $ 53,100,000 [4],[5],[29],[30],[42]            
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 2                            
Rate, basis spread on variable rate [4],[11],[29],[30]               5.75% 5.75% 5.75% 5.75% 5.75% 5.75%  
Variable rate, PIK [9],[10],[43] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Floor 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [9],[10],[43] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30] 1.00% [4],[29],[30]  
Principal Amount $ 28,100,000 [10],[12],[43]             $ 5,600,000 [4],[13],[29],[30]            
Amortized Cost 28,100,000 [10],[43]             5,500,000 [4],[29],[30]            
Fair Value $ 28,100,000 [3],[10],[43]             $ 4,100,000 [4],[5],[29],[30]            
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 2 | Maximum                            
Variable rate, PIK [9],[10],[43] 5.75% 5.75% 5.75% 5.75% 5.75% 5.75% 5.75%              
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 3                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18],[29],[30] 5.75% [11],[18],[29],[30] 5.75% [11],[18],[29],[30] 5.75% [11],[18],[29],[30] 5.75% [11],[18],[29],[30] 5.75% [11],[18],[29],[30]  
Floor 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [9],[17] 1.00% [18],[29],[30] 1.00% [18],[29],[30] 1.00% [18],[29],[30] 1.00% [18],[29],[30] 1.00% [18],[29],[30] 1.00% [18],[29],[30]  
Principal Amount $ 5,700,000 [12],[17]             $ 100,000 [13],[18],[29],[30]            
Amortized Cost 5,700,000 [17]             100,000 [18],[29],[30]            
Fair Value 5,700,000 [3],[17]             $ 100,000 [5],[18],[29],[30]            
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 4                            
Principal Amount [10],[12],[24],[43] 24,000,000.0                          
Amortized Cost [10],[24],[43] 0                          
Fair Value [3],[10],[24],[43] 0                          
Investment, Identifier [Axis]: Sweeping Corp of America Inc, Commercial & Professional Services 5                            
Principal Amount [10],[12],[24],[43] 8,300,000                          
Amortized Cost [10],[24],[43] 4,500,000                          
Fair Value [3],[10],[24],[43] $ 4,500,000                          
Investment, Identifier [Axis]: Swift Worldwide Resources Holdco Ltd, Common Stock, Energy                            
Principal (in shares) | shares 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [10],[24] 1,250,000 [4],[29] 1,250,000 [4],[29] 1,250,000 [4],[29] 1,250,000 [4],[29] 1,250,000 [4],[29] 1,250,000 [4],[29]  
Amortized Cost $ 1,200,000 [10],[24]             $ 1,200,000 [4],[29]            
Fair Value $ 1,300,000 [3],[10],[24]             $ 1,100,000 [4],[5],[29]            
Investment, Identifier [Axis]: Synovus Financial Corp, Private Equity, Banks                            
Principal (in shares) | shares 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 7,160,874 [10],[12],[27] 8,345,434 [4],[6],[13] 8,345,434 [4],[6],[13] 8,345,434 [4],[6],[13] 8,345,434 [4],[6],[13] 8,345,434 [4],[6],[13] 8,345,434 [4],[6],[13]  
Amortized Cost $ 7,200,000 [10],[27]             $ 8,300,000 [4],[6]            
Fair Value 7,200,000 [3],[10],[27]             8,400,000 [4],[5],[6]            
Investment, Identifier [Axis]: TDC LLP, Preferred Equity 1                            
Fair Value 38,300,000             27,800,000           0
Investment, Identifier [Axis]: TDC LLP, Preferred Equity 2                            
Fair Value $ 2,000,000.0             $ 2,000,000.0           0
Investment, Identifier [Axis]: TDC LLP, Preferred Equity, Financial Services                            
Rate, stated interest rate 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [9],[10],[27],[32] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33] 8.00% [4],[6],[11],[33]  
Principal Amount | £ [4],[6],[13],[33]                       £ 21.7    
Principal (in shares) | shares [10],[12],[27],[32] 30,200,000 30,200,000 30,200,000 30,200,000 30,200,000 30,200,000 30,200,000              
Amortized Cost $ 36,700,000 [10],[27],[32]             $ 26,300,000 [4],[6],[33]            
Fair Value $ 38,300,000 [3],[10],[27],[32]             $ 27,800,000 [4],[5],[6],[33]            
Investment, Identifier [Axis]: TDC LLP, Private Equity, Financial Services                            
Principal (in shares) | shares 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [10],[12],[27],[32] 1,576,060 [4],[6],[13],[33] 1,576,060 [4],[6],[13],[33] 1,576,060 [4],[6],[13],[33] 1,576,060 [4],[6],[13],[33] 1,576,060 [4],[6],[13],[33] 1,576,060 [4],[6],[13],[33]  
Amortized Cost $ 2,000,000.0 [10],[27],[32]             $ 2,000,000.0 [4],[6],[33]            
Fair Value $ 2,000,000.0 [3],[10],[27],[32]             $ 2,000,000.0 [4],[5],[6],[33]            
Investment, Identifier [Axis]: TIBCO Software Inc, Preferred Stock, Software & Services                            
Variable rate, PIK 12.00% [9],[10] 12.00% [9],[10] 12.00% [9],[10] 12.00% [9],[10] 12.00% [9],[10] 12.00% [9],[10] 12.00% [9],[10] 12.00% [4],[11] 12.00% [4],[11] 12.00% [4],[11] 12.00% [4],[11] 12.00% [4],[11] 12.00% [4],[11]  
Floor 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4] 0.50% [4]  
Principal (in shares) | shares 76,878,880 [10] 76,878,880 [10] 76,878,880 [10] 76,878,880 [10] 76,878,880 [10] 76,878,880 [10] 76,878,880 [10] 76,878,880 [4] 76,878,880 [4] 76,878,880 [4] 76,878,880 [4] 76,878,880 [4] 76,878,880 [4]  
Amortized Cost $ 73,500,000 [10]             $ 73,500,000 [4]            
Fair Value $ 81,800,000 [3],[10]             $ 82,600,000 [4],[5]            
Investment, Identifier [Axis]: TIBCO Software Inc, Preferred Stock, Software & Services | Maximum                            
Variable rate, PIK [9],[10] 12.00% 12.00% 12.00% 12.00% 12.00% 12.00% 12.00%              
Investment, Identifier [Axis]: TIBCO Software Inc, Software & Services                            
Rate, stated interest rate [9],[10],[40] 6.50% 6.50% 6.50% 6.50% 6.50% 6.50% 6.50%              
Principal Amount [10],[12],[40] $ 700,000                          
Amortized Cost [10],[40] 600,000                          
Fair Value [3],[10],[40] $ 700,000                          
Investment, Identifier [Axis]: TIBCO Software Inc, Software & Services 1                            
Rate, basis spread on variable rate [4],[11],[41]               4.50% 4.50% 4.50% 4.50% 4.50% 4.50%  
Floor [4],[41]               0.50% 0.50% 0.50% 0.50% 0.50% 0.50%  
Principal Amount [4],[13],[41]               $ 15,100,000            
Amortized Cost [4],[41]               13,900,000            
Fair Value [4],[5],[41]               $ 14,700,000            
Investment, Identifier [Axis]: TIBCO Software Inc, Software & Services 2                            
Rate, stated interest rate [4],[11],[41]               6.50% 6.50% 6.50% 6.50% 6.50% 6.50%  
Principal Amount [4],[13],[41]               $ 700,000            
Amortized Cost [4],[41]               600,000            
Fair Value [4],[5],[41]               $ 700,000            
Investment, Identifier [Axis]: TalkTalk Telecom Group Ltd, Revolver, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [9],[10],[27] 7.00% [4],[6],[11] 7.00% [4],[6],[11] 7.00% [4],[6],[11] 7.00% [4],[6],[11] 7.00% [4],[6],[11] 7.00% [4],[6],[11]  
Floor 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [9],[10],[27] 1.50% [4],[6] 1.50% [4],[6] 1.50% [4],[6] 1.50% [4],[6] 1.50% [4],[6] 1.50% [4],[6]  
Principal Amount | £         £ 34.2 [10],[12],[27]             £ 33.1 [4],[6],[13]    
Amortized Cost $ 43,100,000 [10],[27]             $ 41,600,000 [4],[6]            
Fair Value $ 43,300,000 [3],[10],[27]             $ 42,100,000 [4],[5],[6]            
Investment, Identifier [Axis]: TalkTalk Telecom Group Ltd, Revolver, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [9],[10],[17],[27] 7.00% [6],[11],[18] 7.00% [6],[11],[18] 7.00% [6],[11],[18] 7.00% [6],[11],[18] 7.00% [6],[11],[18] 7.00% [6],[11],[18]  
Floor 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [9],[10],[17],[27] 1.50% [6],[18] 1.50% [6],[18] 1.50% [6],[18] 1.50% [6],[18] 1.50% [6],[18] 1.50% [6],[18]  
Principal Amount | £         £ 9.1 [10],[12],[17],[27]             £ 10.3 [6],[13],[18]    
Amortized Cost $ 11,500,000 [10],[17],[27]             $ 13,000,000.0 [6],[18]            
Fair Value $ 11,400,000 [3],[10],[17],[27]             $ 12,900,000 [5],[6],[18]            
Investment, Identifier [Axis]: Tangoe LLC, Software & Services 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [9],[10],[35],[43] 6.50% [4],[11],[34],[42] 6.50% [4],[11],[34],[42] 6.50% [4],[11],[34],[42] 6.50% [4],[11],[34],[42] 6.50% [4],[11],[34],[42] 6.50% [4],[11],[34],[42]  
Floor 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [9],[10],[35],[43] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42] 1.00% [4],[34],[42]  
Principal Amount $ 179,500,000 [10],[12],[35],[43]             $ 179,500,000 [4],[13],[34],[42]            
Amortized Cost 170,100,000 [10],[35],[43]             169,100,000 [4],[34],[42]            
Fair Value $ 155,300,000 [3],[10],[35],[43]             $ 155,400,000 [4],[5],[34],[42]            
Investment, Identifier [Axis]: Tangoe LLC, Software & Services 2                            
Rate, PIK 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42]  
Floor [4],[29],[30],[34],[42]                
Principal Amount $ 10,600,000 [10],[12],[24],[25],[35],[43]             $ 9,800,000 [4],[13],[29],[30],[34],[42]            
Amortized Cost 8,900,000 [10],[24],[25],[35],[43]             8,400,000 [4],[29],[30],[34],[42]            
Fair Value $ 0 [3],[10],[24],[25],[35],[43]             $ 0.0 [4],[5],[29],[30],[34],[42]            
Investment, Identifier [Axis]: Tangoe LLC, Software & Services 2 | Maximum                            
Rate, PIK 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [9],[10],[24],[25],[35],[43] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42] 12.50% [4],[11],[29],[30],[34],[42]  
Investment, Identifier [Axis]: TeamSystem SpA, Software & Services                            
Rate, basis spread on variable rate 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [9],[10],[27] 6.25% [4],[6],[11] 6.25% [4],[6],[11] 6.25% [4],[6],[11] 6.25% [4],[6],[11] 6.25% [4],[6],[11] 6.25% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 19.8 [10],[12],[27]             € 19.8 [4],[6],[13]      
Amortized Cost $ 19,000,000.0 [10],[27]             $ 19,000,000.0 [4],[6]            
Fair Value 21,400,000 [3],[10],[27]             21,900,000 [4],[5],[6]            
Investment, Identifier [Axis]: Tekfor HoldCo (formerly Amtek Global Technology Pte Ltd)                            
Fair Value               $ 0           3,900,000
Investment, Identifier [Axis]: Tekfor HoldCo (formerly Amtek Global Technology Pte Ltd), Automobiles & Components                            
Floor [4],[6],[29]                
Principal Amount | €       € 40.7 [10],[12],[24],[27]             € 39.8 [4],[6],[13],[29]      
Amortized Cost 40,100,000 [10],[24],[27]             $ 40,100,000 [4],[6],[29]            
Fair Value 4,200,000 [3],[10],[24],[27]             4,300,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: ThermaSys Corp                            
Fair Value               0           8,600,000
Investment, Identifier [Axis]: ThermaSys Corp, Common Stock                            
Fair Value $ 0             $ 0           0
Investment, Identifier [Axis]: ThermaSys Corp, Common Stock, Capital Goods                            
Principal (in shares) | shares [4],[29],[38],[54]               17,383,026 17,383,026 17,383,026 17,383,026 17,383,026 17,383,026  
Amortized Cost [4],[29],[38],[54]               $ 10,200,000            
Fair Value [4],[5],[29],[38],[54]               0            
Investment, Identifier [Axis]: ThermaSys Corp, Preferred Stock                            
Fair Value               $ 0           0
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 1                            
Rate, basis spread on variable rate 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21]  
Rate, PIK 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21]  
Floor 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21]  
Principal Amount $ 45,800,000 [10],[12],[19]             $ 46,000,000.0 [4],[13],[21]            
Amortized Cost 45,700,000 [10],[19]             45,900,000 [4],[21]            
Fair Value $ 43,700,000 [3],[10],[19]             $ 44,000,000.0 [4],[5],[21]            
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 1 | Maximum                            
Rate, PIK 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21]  
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 2                            
Rate, basis spread on variable rate 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [9],[10],[19] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21] 5.00% [4],[11],[21]  
Rate, PIK 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21]  
Floor 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [9],[10],[19] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21] 1.50% [4],[21]  
Principal Amount $ 45,900,000 [10],[12],[19]             $ 45,800,000 [4],[13],[21]            
Amortized Cost 45,900,000 [10],[19]             45,700,000 [4],[21]            
Fair Value $ 43,900,000 [3],[10],[19]             $ 43,800,000 [4],[5],[21]            
Investment, Identifier [Axis]: ThreeSixty Group, Consumer Discretionary Distribution & Retail 2 | Maximum                            
Rate, PIK 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [9],[10],[19] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21] 2.50% [4],[11],[21]  
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 1                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 45,100,000 [10],[12]             $ 45,100,000 [4],[13]            
Amortized Cost 44,400,000 [10]             44,400,000 [4]            
Fair Value $ 42,500,000 [3],[10]             $ 42,100,000 [4],[5]            
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 2                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount $ 7,900,000 [10],[12]             $ 7,100,000 [4],[13]            
Amortized Cost 7,900,000 [10]             7,100,000 [4]            
Fair Value $ 7,400,000 [3],[10]             $ 6,700,000 [4],[5]            
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 3                            
Rate, basis spread on variable rate 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [9],[10] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11] 6.50% [4],[11]  
Floor 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [9],[10] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4] 0.80% [4]  
Principal Amount | €       € 13.6 [10],[12]             € 13.6 [4],[13]      
Amortized Cost $ 14,400,000 [10]             $ 14,400,000 [4]            
Fair Value $ 13,800,000 [3],[10]             $ 14,100,000 [4],[5]            
Investment, Identifier [Axis]: Time Manufacturing Co, Capital Goods 4                            
Rate, basis spread on variable rate 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [9],[10],[17] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18] 6.50% [11],[18]  
Floor 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [9],[10],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 15,900,000 [10],[12],[17]             $ 15,000,000.0 [13],[18]            
Amortized Cost 15,900,000 [10],[17]             15,000,000.0 [18]            
Fair Value $ 15,000,000.0 [3],[10],[17]             $ 14,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Transaction Services Group Ltd, Software & Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [4],[6],[11] 5.50% [4],[6],[11] 5.50% [4],[6],[11] 5.50% [4],[6],[11] 5.50% [4],[6],[11] 5.50% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount           $ 48.3 [10],[12],[27]             $ 48.3 [4],[6],[13]  
Amortized Cost $ 34,800,000 [10],[27]             $ 34,700,000 [4],[6]            
Fair Value $ 31,500,000 [3],[10],[27]             $ 33,000,000.0 [4],[5],[6]            
Investment, Identifier [Axis]: Transaction Services Group Ltd, Software & Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [9],[10],[15],[19],[27] 5.50% [4],[6],[11],[21],[44] 5.50% [4],[6],[11],[21],[44] 5.50% [4],[6],[11],[21],[44] 5.50% [4],[6],[11],[21],[44] 5.50% [4],[6],[11],[21],[44] 5.50% [4],[6],[11],[21],[44]  
Floor 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [9],[10],[15],[19],[27] 0.00% [4],[6],[21],[44] 0.00% [4],[6],[21],[44] 0.00% [4],[6],[21],[44] 0.00% [4],[6],[21],[44] 0.00% [4],[6],[21],[44] 0.00% [4],[6],[21],[44]  
Principal Amount $ 126,200,000 [10],[12],[15],[19],[27]             $ 126,200,000 [4],[6],[13],[21],[44]            
Amortized Cost 123,900,000 [10],[15],[19],[27]             123,700,000 [4],[6],[21],[44]            
Fair Value $ 126,200,000 [3],[10],[15],[19],[27]             $ 126,200,000 [4],[5],[6],[21],[44]            
Investment, Identifier [Axis]: Trescal SA, Commercial & Professional Services 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 2.1 [10],[12],[27]             € 9.6 [4],[6],[13]      
Amortized Cost $ 2,300,000 [10],[27]             $ 10,400,000 [4],[6]            
Fair Value $ 2,200,000 [3],[10],[27]             $ 10,500,000 [4],[5],[6]            
Investment, Identifier [Axis]: Trescal SA, Commercial & Professional Services 2                            
Rate, basis spread on variable rate 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11]  
Floor 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6]  
Principal Amount       € 2.5 [10],[12],[17],[27]       $ 8,600,000 [4],[6],[13]            
Amortized Cost $ 2,700,000 [10],[17],[27]             8,400,000 [4],[6]            
Fair Value $ 2,700,000 [3],[10],[17],[27]             $ 8,500,000 [4],[5],[6]            
Investment, Identifier [Axis]: Trescal SA, Commercial & Professional Services 3                            
Rate, basis spread on variable rate [6],[11],[18]               6.50% 6.50% 6.50% 6.50% 6.50% 6.50%  
Floor [6],[18]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | € [6],[13],[18]                     € 2.8      
Amortized Cost [6],[18]               $ 3,100,000            
Fair Value [5],[6],[18]               $ 3,100,000            
Investment, Identifier [Axis]: Ultra Electronics Holdings Ltd, Capital Goods 1                            
Rate, basis spread on variable rate 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [9],[27],[40],[43] 3.50% [6],[11],[41],[42] 3.50% [6],[11],[41],[42] 3.50% [6],[11],[41],[42] 3.50% [6],[11],[41],[42] 3.50% [6],[11],[41],[42] 3.50% [6],[11],[41],[42]  
Floor 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [9],[27],[40],[43] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42] 0.50% [6],[41],[42]  
Principal Amount $ 1,700,000 [12],[27],[40],[43]             $ 1,800,000 [6],[13],[41],[42]            
Amortized Cost 1,700,000 [27],[40],[43]             1,700,000 [6],[41],[42]            
Fair Value $ 1,700,000 [3],[27],[40],[43]             $ 1,700,000 [5],[6],[41],[42]            
Investment, Identifier [Axis]: Ultra Electronics Holdings Ltd, Capital Goods 2                            
Rate, basis spread on variable rate 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [9],[10],[27],[40] 3.25% [4],[6],[11],[41] 3.25% [4],[6],[11],[41] 3.25% [4],[6],[11],[41] 3.25% [4],[6],[11],[41] 3.25% [4],[6],[11],[41] 3.25% [4],[6],[11],[41]  
Floor 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [9],[10],[27],[40] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41] 0.00% [4],[6],[41]  
Principal Amount | €       € 1.4 [10],[12],[27],[40]             € 1.4 [4],[6],[13],[41]      
Amortized Cost $ 1,600,000 [10],[27],[40]             $ 1,600,000 [4],[6],[41]            
Fair Value $ 1,500,000 [3],[10],[27],[40]             $ 1,500,000 [4],[5],[6],[41]            
Investment, Identifier [Axis]: Ultra Electronics Holdings Ltd, Capital Goods 3                            
Rate, basis spread on variable rate 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [9],[10],[27] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11] 7.25% [4],[6],[11]  
Floor 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6]  
Principal Amount $ 62,900,000 [10],[12],[27]             $ 62,900,000 [4],[6],[13]            
Amortized Cost 61,300,000 [10],[27]             61,200,000 [4],[6]            
Fair Value $ 61,800,000 [3],[10],[27]             $ 61,000,000.0 [4],[5],[6]            
Investment, Identifier [Axis]: Ultra Electronics Holdings Ltd, Capital Goods 4                            
Variable rate, PIK 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11]  
Floor 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [9],[10],[27] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6] 0.50% [4],[6]  
Principal Amount $ 71,000,000.0 [10],[12],[27]             $ 66,100,000 [4],[6],[13]            
Amortized Cost 69,400,000 [10],[27]             64,500,000 [4],[6]            
Fair Value $ 68,900,000 [3],[10],[27]             $ 62,700,000 [4],[5],[6]            
Investment, Identifier [Axis]: Ultra Electronics Holdings Ltd, Capital Goods 4 | Maximum                            
Variable rate, PIK 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [9],[10],[27] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11] 9.00% [4],[6],[11]  
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Private Equity, Capital Goods 1                            
Principal (in shares) | shares 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 454,343,603 [10],[24],[27] 683,240,044 [4],[6],[29] 683,240,044 [4],[6],[29] 683,240,044 [4],[6],[29] 683,240,044 [4],[6],[29] 683,240,044 [4],[6],[29] 683,240,044 [4],[6],[29]  
Amortized Cost $ 4,800,000 [10],[24],[27]             $ 7,200,000 [4],[6],[29]            
Fair Value $ 8,400,000 [3],[10],[24],[27]             $ 10,400,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Ultra Electronics Holdings PLC, Private Equity, Capital Goods 2                            
Principal (in shares) | shares 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [10],[24],[27] 1,272,105 [4],[6],[29] 1,272,105 [4],[6],[29] 1,272,105 [4],[6],[29] 1,272,105 [4],[6],[29] 1,272,105 [4],[6],[29] 1,272,105 [4],[6],[29]  
Amortized Cost $ 1,300,000 [10],[24],[27]             $ 1,300,000 [4],[6],[29]            
Fair Value $ 2,400,000 [3],[10],[24],[27]             $ 1,900,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Valeo Foods Group Ltd, Food, Beverage & Tobacco 1                            
Rate, basis spread on variable rate 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [9],[10],[27] 7.50% [4],[6],[11] 7.50% [4],[6],[11] 7.50% [4],[6],[11] 7.50% [4],[6],[11] 7.50% [4],[6],[11] 7.50% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 3.8 [10],[12],[27]             € 3.8 [4],[6],[13]      
Amortized Cost $ 4,100,000 [10],[27]             $ 4,100,000 [4],[6]            
Fair Value $ 3,600,000 [3],[10],[27]             $ 3,500,000 [4],[5],[6]            
Investment, Identifier [Axis]: Valeo Foods Group Ltd, Food, Beverage & Tobacco 2                            
Rate, basis spread on variable rate 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [9],[10],[17],[27] 7.50% [6],[11],[18] 7.50% [6],[11],[18] 7.50% [6],[11],[18] 7.50% [6],[11],[18] 7.50% [6],[11],[18] 7.50% [6],[11],[18]  
Floor 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [9],[10],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | €       € 2.3 [10],[12],[17],[27]             € 2.3 [6],[13],[18]      
Amortized Cost $ 3,000,000.0 [10],[17],[27]             $ 3,000,000.0 [6],[18]            
Fair Value $ 2,700,000 [3],[10],[17],[27]             $ 2,600,000 [5],[6],[18]            
Investment, Identifier [Axis]: Vehicle Secured Funding Trust, Private Equity, Financial Services                            
Principal (in shares) | shares 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 86,619,949 [10],[12],[27] 94,927,993 [4],[6],[13],[29] 94,927,993 [4],[6],[13],[29] 94,927,993 [4],[6],[13],[29] 94,927,993 [4],[6],[13],[29] 94,927,993 [4],[6],[13],[29] 94,927,993 [4],[6],[13],[29]  
Amortized Cost $ 86,600,000 [10],[27]             $ 94,900,000 [4],[6],[29]            
Fair Value $ 87,500,000 [3],[10],[27]             $ 94,900,000 [4],[5],[6],[29]            
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11]  
Rate, PIK 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | €       € 1.1 [10],[12],[27]             € 1.1 [4],[6],[13]      
Amortized Cost $ 1,100,000 [10],[27]             $ 1,100,000 [4],[6]            
Fair Value $ 1,200,000 [3],[10],[27]             $ 1,200,000 [4],[5],[6]            
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 1 | Maximum                            
Rate, PIK 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11]  
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11]  
Rate, PIK 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11] 0.00% [4],[6],[11]  
Floor 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [9],[10],[27] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6] 0.00% [4],[6]  
Principal Amount | £         £ 1.1 [10],[12],[27]             £ 1.1 [4],[6],[13]    
Amortized Cost $ 1,300,000 [10],[27]             $ 1,300,000 [4],[6]            
Fair Value $ 1,400,000 [3],[10],[27]             $ 1,400,000 [4],[5],[6]            
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 2 | Maximum                            
Rate, PIK 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [9],[10],[27] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11] 1.70% [4],[6],[11]  
Investment, Identifier [Axis]: Version1 Software Ltd, Software & Services 3                            
Rate, basis spread on variable rate 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [9],[17],[27] 6.25% [6],[11],[18] 6.25% [6],[11],[18] 6.25% [6],[11],[18] 6.25% [6],[11],[18] 6.25% [6],[11],[18] 6.25% [6],[11],[18]  
Floor 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [9],[17],[27] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18] 0.00% [6],[18]  
Principal Amount | €       € 13.7 [12],[17],[27]             € 13.7 [6],[13],[18]      
Amortized Cost $ 14,800,000 [17],[27]             $ 14,800,000 [6],[18]            
Fair Value $ 14,400,000 [3],[17],[27]             $ 14,300,000 [5],[6],[18]            
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services                            
Rate, basis spread on variable rate [11],[18]               6.00% 6.00% 6.00% 6.00% 6.00% 6.00%  
Floor [18]               0.80% 0.80% 0.80% 0.80% 0.80% 0.80%  
Principal Amount [13],[18]               $ 8,400,000            
Amortized Cost [18]               8,400,000            
Fair Value [5],[18]               $ 8,500,000            
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [9],[10],[43] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42] 5.75% [4],[11],[42]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 68,300,000 [10],[12],[43]             $ 68,300,000 [4],[13],[42]            
Amortized Cost 67,700,000 [10],[43]             67,700,000 [4],[42]            
Fair Value $ 68,900,000 [3],[10],[43]             $ 68,000,000.0 [4],[5],[42]            
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [9],[17] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18] 5.75% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 6,700,000 [12],[17]             $ 6,700,000 [13],[18]            
Amortized Cost 6,600,000 [17]             6,600,000 [18]            
Fair Value $ 6,700,000 [3],[17]             $ 6,700,000 [5],[18]            
Investment, Identifier [Axis]: VetCor Professional Practices LLC, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate [9],[17] 6.00% 6.00% 6.00% 6.00% 6.00% 6.00% 6.00%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 8,400,000                          
Amortized Cost [17] 8,400,000                          
Fair Value [3],[17] $ 8,400,000                          
Investment, Identifier [Axis]: Vytalogy Wellness LLC (fka Jarrow Formulas Inc), Household & Personal Products 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [9],[10],[14],[15],[19],[20],[43] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Floor 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [9],[10],[14],[15],[19],[20],[43] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 114,800,000 [10],[12],[14],[15],[19],[20],[43]             $ 5,300,000 [4],[13]            
Amortized Cost 111,300,000 [10],[14],[15],[19],[20],[43]             5,300,000 [4]            
Fair Value $ 109,500,000 [3],[10],[14],[15],[19],[20],[43]             $ 5,100,000 [4],[5]            
Investment, Identifier [Axis]: Vytalogy Wellness LLC (fka Jarrow Formulas Inc), Household & Personal Products 2                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44] 6.25% [4],[11],[16],[21],[22],[42],[44]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44] 1.00% [4],[16],[21],[22],[42],[44]  
Principal Amount $ 5,200,000 [10],[12]             $ 116,400,000 [4],[13],[16],[21],[22],[42],[44]            
Amortized Cost 5,200,000 [10]             112,600,000 [4],[16],[21],[22],[42],[44]            
Fair Value 5,000,000.0 [3],[10]             113,400,000 [4],[5],[16],[21],[22],[42],[44]            
Investment, Identifier [Axis]: Warren Resources Inc                            
Fair Value 18,800,000             18,800,000           18,600,000
Investment, Identifier [Axis]: Warren Resources Inc, Common Stock                            
Fair Value $ 11,400,000             $ 12,300,000           29,200,000
Investment, Identifier [Axis]: Warren Resources Inc, Common Stock, Energy                            
Principal (in shares) | shares 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [10],[24],[32] 3,483,788 [4],[29],[33] 3,483,788 [4],[29],[33] 3,483,788 [4],[29],[33] 3,483,788 [4],[29],[33] 3,483,788 [4],[29],[33] 3,483,788 [4],[29],[33]  
Amortized Cost $ 12,800,000 [10],[24],[32]             $ 12,800,000 [4],[29],[33]            
Fair Value $ 11,400,000 [3],[10],[24],[32]             $ 12,300,000 [4],[5],[29],[33]            
Investment, Identifier [Axis]: Warren Resources Inc, Energy                            
Rate, basis spread on variable rate 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [9],[10],[32] 9.00% [4],[11],[33] 9.00% [4],[11],[33] 9.00% [4],[11],[33] 9.00% [4],[11],[33] 9.00% [4],[11],[33] 9.00% [4],[11],[33]  
Rate, PIK 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33]  
Floor 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33] 1.00% [4],[33]  
Principal Amount $ 18,800,000 [10],[12],[32]             $ 18,800,000 [4],[13],[33]            
Amortized Cost 18,700,000 [10],[32]             18,500,000 [4],[33]            
Fair Value $ 18,800,000 [3],[10],[32]             $ 18,800,000 [4],[5],[33]            
Investment, Identifier [Axis]: Warren Resources Inc, Energy | Maximum                            
Rate, PIK 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [9],[10],[32] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33] 1.00% [4],[11],[33]  
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 1                            
Rate, basis spread on variable rate 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.50% [9],[10],[27] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount $ 5,900,000 [10],[12],[27]             $ 5,300,000 [4],[6],[13]            
Amortized Cost 5,900,000 [10],[27]             5,200,000 [4],[6]            
Fair Value $ 5,900,000 [3],[10],[27]             $ 5,300,000 [4],[5],[6]            
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 2                            
Rate, basis spread on variable rate 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.50% [9],[10],[17],[27] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 1,600,000 [10],[12],[17],[27]             $ 900,000 [6],[13],[18]            
Amortized Cost 1,600,000 [10],[17],[27]             900,000 [6],[18]            
Fair Value $ 1,600,000 [3],[10],[17],[27]             $ 900,000 [5],[6],[18]            
Investment, Identifier [Axis]: Wealth Enhancement Group LLC, Financial Services 3                            
Rate, basis spread on variable rate 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.50% [9],[17],[27] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18]  
Floor 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [9],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 2,100,000 [12],[17],[27]             $ 2,100,000 [6],[13],[18]            
Amortized Cost 2,100,000 [17],[27]             2,100,000 [6],[18]            
Fair Value $ 2,100,000 [3],[17],[27]             $ 2,100,000 [5],[6],[18]            
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Revolver, Consumer Discretionary Distribution & Retail 1                            
Rate, basis spread on variable rate 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [9],[10],[27] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11] 5.75% [4],[6],[11]  
Floor 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [9],[10],[27] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6] 1.00% [4],[6]  
Principal Amount $ 68,800,000 [10],[12],[27]             $ 21,800,000 [4],[6],[13]            
Amortized Cost 68,800,000 [10],[27]             21,800,000 [4],[6]            
Fair Value $ 69,000,000.0 [3],[10],[27]             $ 21,800,000 [4],[5],[6]            
Investment, Identifier [Axis]: Weber-Stephen Products LLC, Revolver, Consumer Discretionary Distribution & Retail 2                            
Rate, basis spread on variable rate 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [9],[10],[17],[27] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18] 5.75% [6],[11],[18]  
Floor 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [9],[10],[17],[27] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18] 1.00% [6],[18]  
Principal Amount $ 14,500,000 [10],[12],[17],[27]             $ 44,900,000 [6],[13],[18]            
Amortized Cost 14,500,000 [10],[17],[27]             44,900,000 [6],[18]            
Fair Value 14,600,000 [3],[10],[17],[27]             44,900,000 [5],[6],[18]            
Investment, Identifier [Axis]: Wittur Holding GmbH                            
Fair Value $ 53,500,000             $ 0            
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods                            
Rate, basis spread on variable rate [4],[6],[11],[29],[30]               8.50% 8.50% 8.50% 8.50% 8.50% 8.50%  
Rate, stated interest rate [9],[10],[27],[32] 0.10% 0.10% 0.10% 0.10% 0.10% 0.10% 0.10%              
Rate, PIK [9],[10],[27],[32] 5.90% 5.90% 5.90% 5.90% 5.90% 5.90% 5.90%              
Floor [4],[6],[29],[30]               0.00% 0.00% 0.00% 0.00% 0.00% 0.00%  
Principal Amount | €       € 52.2 [10],[12],[27],[32]             € 114.5 [4],[6],[13],[29],[30]      
Amortized Cost $ 55,800,000 [10],[27],[32]             $ 122,500,000 [4],[6],[29],[30]            
Fair Value $ 53,500,000 [3],[10],[27],[32]             $ 31,000,000.0 [4],[5],[6],[29],[30]            
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods | Maximum                            
Rate, PIK 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 5.90% [9],[10],[27],[32] 1.00% [4],[6],[11],[29],[30] 1.00% [4],[6],[11],[29],[30] 1.00% [4],[6],[11],[29],[30] 1.00% [4],[6],[11],[29],[30] 1.00% [4],[6],[11],[29],[30] 1.00% [4],[6],[11],[29],[30]  
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods 1                            
Rate, PIK [4],[6],[11]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Principal Amount | € [4],[6],[13]                     € 1.6      
Amortized Cost [4],[6]               $ 1,700,000            
Fair Value [4],[5],[6]               $ 1,700,000            
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods 1 | Maximum                            
Rate, PIK [4],[6],[11]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods 2                            
Rate, PIK [6],[11],[18]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Principal Amount | € [6],[13],[18]                     € 19.6      
Amortized Cost [6],[18]               $ 21,400,000            
Fair Value [5],[6],[18]               $ 21,400,000            
Investment, Identifier [Axis]: Wittur Holding GmbH, Capital Goods 2 | Maximum                            
Rate, PIK [6],[11],[18]               10.00% 10.00% 10.00% 10.00% 10.00% 10.00%  
Investment, Identifier [Axis]: Wittur Holding GmbH, Common Stock                            
Fair Value $ 7,400,000             $ 0            
Investment, Identifier [Axis]: Wittur Holding GmbH, Common Stock, Capital Goods                            
Principal (in shares) | shares [10],[24],[27],[32] 11,630 11,630 11,630 11,630 11,630 11,630 11,630              
Amortized Cost [10],[24],[27],[32] $ 8,000,000.0                          
Fair Value [3],[10],[24],[27],[32] $ 7,400,000                          
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods 1                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [9],[10],[14],[19],[20],[43] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42] 6.00% [4],[11],[16],[21],[22],[42]  
Floor 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [9],[10],[14],[19],[20],[43] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42] 1.00% [4],[16],[21],[22],[42]  
Principal Amount $ 157,500,000 [10],[12],[14],[19],[20],[43]             $ 157,900,000 [4],[13],[16],[21],[22],[42]            
Amortized Cost 152,600,000 [10],[14],[19],[20],[43]             152,800,000 [4],[16],[21],[22],[42]            
Fair Value $ 157,500,000 [3],[10],[14],[19],[20],[43]             $ 157,900,000 [4],[5],[16],[21],[22],[42]            
Investment, Identifier [Axis]: Woolpert Inc, Capital Goods 2                            
Rate, basis spread on variable rate 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [9],[10],[14],[17],[19],[20],[43] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18] 6.00% [11],[18]  
Floor 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [9],[10],[14],[17],[19],[20],[43] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 3,700,000 [10],[12],[14],[17],[19],[20],[43]             $ 3,700,000 [13],[18]            
Amortized Cost 3,700,000 [10],[14],[17],[19],[20],[43]             3,700,000 [18]            
Fair Value $ 3,700,000 [3],[10],[14],[17],[19],[20],[43]             $ 3,700,000 [5],[18]            
Investment, Identifier [Axis]: Worldwise Inc, Class A Private Equity, Household & Personal Products                            
Principal (in shares) | shares [4],[29]               32,109 32,109 32,109 32,109 32,109 32,109  
Amortized Cost [4],[29]               $ 1,600,000            
Fair Value [4],[5],[29]               $ 0            
Investment, Identifier [Axis]: Worldwise Inc, Class B Private Equity, Household & Personal Products                            
Principal (in shares) | shares [4],[29]               43,974 43,974 43,974 43,974 43,974 43,974  
Amortized Cost [4],[29]               $ 2,100,000            
Fair Value [4],[5],[29]               $ 0            
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 1                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11] 6.25% [4],[11]  
Rate, PIK 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 40,800,000 [10],[12]             $ 40,900,000 [4],[13]            
Amortized Cost 40,700,000 [10]             40,800,000 [4]            
Fair Value $ 36,600,000 [3],[10]             $ 37,500,000 [4],[5]            
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 1 | Maximum                            
Rate, PIK 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11]  
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 2                            
Rate, basis spread on variable rate 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.25% [9],[10] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11] 6.75% [4],[11]  
Rate, PIK 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11] 0.00% [4],[11]  
Floor 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [9],[10] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4] 1.00% [4]  
Principal Amount $ 6,300,000 [10],[12]             $ 5,700,000 [4],[13]            
Amortized Cost 6,300,000 [10]             5,700,000 [4]            
Fair Value $ 5,600,000 [3],[10]             $ 5,200,000 [4],[5]            
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 2 | Maximum                            
Rate, PIK 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [9],[10] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11] 0.50% [4],[11]  
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 3                            
Rate, basis spread on variable rate 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Rate, PIK 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 28,000,000.0 [10],[12],[17]             $ 28,000,000.0 [13],[18]            
Amortized Cost 28,000,000.0 [10],[17]             28,000,000.0 [18]            
Fair Value $ 25,200,000 [3],[10],[17]             $ 25,700,000 [5],[18]            
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 3 | Maximum                            
Rate, PIK 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18]  
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 4                            
Rate, basis spread on variable rate 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.25% [9],[10],[17] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18] 6.75% [11],[18]  
Rate, PIK 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18]  
Floor 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [9],[10],[17] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18] 1.00% [18]  
Principal Amount $ 8,000,000.0 [10],[12],[17]             $ 8,500,000 [13],[18]            
Amortized Cost 8,000,000.0 [10],[17]             8,500,000 [18]            
Fair Value $ 7,100,000 [3],[10],[17]             $ 7,800,000 [5],[18]            
Investment, Identifier [Axis]: Worldwise Inc, Household & Personal Products 4 | Maximum                            
Rate, PIK 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [9],[10],[17] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18] 0.50% [11],[18]  
Investment, Identifier [Axis]: Worldwise Inc, Preferred Equity, Household & Personal Products                            
Rate, PIK [4],[11]               20.00% 20.00% 20.00% 20.00% 20.00% 20.00%  
Principal (in shares) | shares 830,617 [10],[24] 830,617 [10],[24] 830,617 [10],[24] 830,617 [10],[24] 830,617 [10],[24] 830,617 [10],[24] 830,617 [10],[24] 830,617 [4] 830,617 [4] 830,617 [4] 830,617 [4] 830,617 [4] 830,617 [4]  
Amortized Cost $ 300,000 [10],[24]             $ 300,000 [4]            
Fair Value $ 100,000 [3],[10],[24]             $ 800,000 [4],[5]            
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 1                            
Rate, basis spread on variable rate 6.25% [9],[10],[43] 6.25% [9],[10],[43] 6.25% [9],[10],[43] 6.25% [9],[10],[43] 6.25% [9],[10],[43] 6.25% [9],[10],[43] 6.25% [9],[10],[43] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42]  
Rate, PIK 0.00% [9],[10],[43] 0.00% [9],[10],[43] 0.00% [9],[10],[43] 0.00% [9],[10],[43] 0.00% [9],[10],[43] 0.00% [9],[10],[43] 0.00% [9],[10],[43] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42]  
Floor 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [9],[10],[43] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42] 0.80% [4],[42]  
Principal Amount $ 59,600,000 [10],[12],[43]             $ 59,600,000 [4],[13],[42]            
Amortized Cost 59,200,000 [10],[43]             59,100,000 [4],[42]            
Fair Value $ 60,200,000 [3],[10],[43]             $ 59,500,000 [4],[5],[42]            
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 1 | Maximum                            
Rate, PIK 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [9],[10],[43] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42] 3.50% [4],[11],[42]  
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 2                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Rate, PIK 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 6,000,000.0 [12],[17]             $ 6,000,000.0 [13],[18]            
Amortized Cost 6,000,000.0 [17]             6,000,000.0 [18]            
Fair Value $ 6,000,000.0 [3],[17]             $ 6,000,000.0 [5],[18]            
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 2 | Maximum                            
Rate, PIK 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18]  
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 3                            
Rate, basis spread on variable rate 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [9],[17] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18] 6.25% [11],[18]  
Rate, PIK 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [9],[17] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18] 0.00% [11],[18]  
Floor 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [9],[17] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18] 0.80% [18]  
Principal Amount $ 14,500,000 [12],[17]             $ 14,500,000 [13],[18]            
Amortized Cost 14,400,000 [17]             14,400,000 [18]            
Fair Value $ 14,700,000 [3],[17]             $ 14,500,000 [5],[18]            
Investment, Identifier [Axis]: Zendesk Inc, Software & Services 3 | Maximum                            
Rate, PIK 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [9],[17] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18] 3.50% [11],[18]  
Investment, Identifier [Axis]: Zeta Interactive Holdings Corp, Common Stock 1                            
Amortized Cost               $ 15,419,800,000            
Fair Value [4],[5],[29],[41]               14,649,300,000            
Investment, Identifier [Axis]: Zeus Industrial Products Inc, Health Care Equipment & Services 1                            
Rate, basis spread on variable rate [9],[10] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Rate, PIK [9],[10] 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%              
Floor [9],[10] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [10],[12] $ 83,100,000                          
Amortized Cost [10] 82,500,000                          
Fair Value [3],[10] $ 82,500,000                          
Investment, Identifier [Axis]: Zeus Industrial Products Inc, Health Care Equipment & Services 1 | Maximum                            
Rate, PIK [9],[10] 2.80% 2.80% 2.80% 2.80% 2.80% 2.80% 2.80%              
Investment, Identifier [Axis]: Zeus Industrial Products Inc, Health Care Equipment & Services 2                            
Rate, basis spread on variable rate [9],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 11,600,000                          
Amortized Cost [17] 11,600,000                          
Fair Value [3],[17] $ 11,500,000                          
Investment, Identifier [Axis]: Zeus Industrial Products Inc, Health Care Equipment & Services 3                            
Rate, basis spread on variable rate [9],[17] 5.50% 5.50% 5.50% 5.50% 5.50% 5.50% 5.50%              
Floor [9],[17] 0.80% 0.80% 0.80% 0.80% 0.80% 0.80% 0.80%              
Principal Amount [12],[17] $ 15,500,000                          
Amortized Cost [17] 15,500,000                          
Fair Value [3],[17] 15,300,000                          
Investment, Identifier [Axis]: athenahealth Inc, Preferred Stock                            
Fair Value $ 250,500,000             $ 252,600,000           $ 231,200,000
Investment, Identifier [Axis]: athenahealth Inc, Preferred Stock, Health Care Equipment & Services                            
Rate, PIK 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38]  
Principal (in shares) | shares 267,493 [10],[37] 267,493 [10],[37] 267,493 [10],[37] 267,493 [10],[37] 267,493 [10],[37] 267,493 [10],[37] 267,493 [10],[37] 267,493 [4],[38] 267,493 [4],[38] 267,493 [4],[38] 267,493 [4],[38] 267,493 [4],[38] 267,493 [4],[38]  
Amortized Cost $ 262,200,000 [10],[37]             $ 262,200,000 [4],[38]            
Fair Value $ 250,500,000 [3],[10],[37]             $ 252,600,000 [4],[5],[38]            
Investment, Identifier [Axis]: athenahealth Inc, Preferred Stock, Health Care Equipment & Services | Maximum                            
Rate, PIK 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [9],[10],[37] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38] 10.80% [4],[11],[38]  
Investment, Identifier [Axis]: iNova Pharmaceuticals (Australia) Pty Limited, Pharmaceuticals, Biotechnology & Life Sciences 1                            
Rate, basis spread on variable rate 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [9],[10],[27] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11] 6.50% [4],[6],[11]  
Floor 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [9],[10],[27] 0.80% [4],[6] 0.80% [4],[6] 0.80% [4],[6] 0.80% [4],[6] 0.80% [4],[6] 0.80% [4],[6]  
Principal Amount           $ 0.9 [10],[12],[27]             $ 0.9 [4],[6],[13]  
Amortized Cost $ 500,000 [10],[27]             $ 500,000 [4],[6]            
Fair Value $ 600,000 [3],[10],[27]             $ 600,000 [4],[5],[6]            
Investment, Identifier [Axis]: iNova Pharmaceuticals (Australia) Pty Limited, Pharmaceuticals, Biotechnology & Life Sciences 2                            
Rate, basis spread on variable rate 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [9],[10],[17],[27] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18] 6.50% [6],[11],[18]  
Floor 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [9],[10],[17],[27] 0.80% [6],[18] 0.80% [6],[18] 0.80% [6],[18] 0.80% [6],[18] 0.80% [6],[18] 0.80% [6],[18]  
Principal Amount           $ 2.6 [10],[12],[17],[27]             $ 2.6 [6],[13],[18]  
Amortized Cost $ 1,700,000 [10],[17],[27]             $ 1,700,000 [6],[18]            
Fair Value $ 1,600,000 [3],[10],[17],[27]             $ 1,600,000 [5],[6],[18]            
[1] Security may be an obligation of one or more entities affiliated with the named company
[2] Security may be an obligation of one or more entities affiliated with the named company.
[3] See Note 8 for additional information regarding the fair value of the Company’s financial instruments
[4] Security or portion thereof is pledged as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).
[5] Fair value determined by the Company’s board of directors (see Note 8).
[6] The investment is not a qualifying asset under the Investment Company Act of 1940, as amended. A business development company may not acquire any asset other than qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company’s total assets. As of December 31, 2023, 73.1% of the Company’s total assets represented qualifying assets.
[7] Listed investments may be treated as debt for GAAP or tax purposes.
[8] Listed investments may be treated as debt for GAAP or tax purposes.
[9] Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of March 31, 2024, the three-month London Interbank Offered Rate, or LIBOR or “L”, was 5.56%, the Euro Interbank Offered Rate, or EURIBOR or “E”, was 3.89%, Canadian Dollar Offer Rate, or CDOR or “C”, was 5.30%, the Australian Bank Bill Swap Bid Rate, or BBSY or “B”, was 4.39%, the Reykjavik Interbank Offered Rate, or REIBOR or “R”, was 9.80%, the Stockholm Interbank Offered Rate, or STIBOR or “SR”, was 4.03%, the Sterling Interbank Offered Rate, or SONIA or “SA”, was 5.18%, the Secured Overnight Financing Rate, or SOFR or “SF”, was 5.30% and the U.S. Prime Lending Rate, or Prime or “P”, was 8.50%. PIK means paid-in-kind. PIK income accruals may be adjusted based on the performance of the underlying investment. Variable rate securities with no floor rate use the respective benchmark rate in all cases.
[10] Security or portion thereof is pledged as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).
[11] Certain variable rate securities in the Company’s portfolio bear interest at a rate determined by a publicly disclosed base rate plus a basis point spread. As of December 31, 2023, the three-month London Interbank Offered Rate, or LIBOR or “L”, was 5.59%, the Euro Interbank Offered Rate, or EURIBOR or “E”, was 3.91%, Canadian Dollar Offer Rate, or CDOR “C”, was 5.45%, the Bank Bill Swap Bid Rate, or BBSY or “B”, was 4.41%, the Reykjavik Interbank Offered Rate, or REIBOR or “R”, was 9.91%, the Stockholm Interbank Offered Rate, or STIBOR or “SR”, was 4.05%, the Sterling Overnight Index Average, or SONIA or “SA”, was 5.21%, the Secured Overnight Financing Rate, or SOFR or “SF”, was 5.33%, and the U.S. Prime Lending Rate, or Prime or “P”, was 8.50%. PIK means paid-in-kind. PIK income accruals may be adjusted based on the fair value of the underlying investment.
[12] Denominated in U.S dollars unless otherwise noted.
[13] Denominated in U.S. dollars unless otherwise noted.
[14] Security or portion thereof held within Darby Creek LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9).
[15] Security or portion thereof held within CCT Tokyo Funding LLC and pledged as collateral supporting the amounts outstanding under the revolving credit facility with Sumitomo Mitsui Banking Corporation (see Note 9).
[16] Security or portion thereof held within Darby Creek LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Deutsche Bank AG, New York Branch (see Note 9).
[17] Security is an unfunded commitment. Reflects the stated spread at the time of commitment, but may not be the actual rate received upon funding
[18] Security is an unfunded commitment. Reflects the stated spread at the time of commitment, but may not be the actual rate received upon funding.
[19] Security or portion thereof held within Ambler Funding LLC and is pledged as collateral supporting the amounts outstanding under the revolving credit facility with Ally Bank (see Note 9).
[20] Security or portion thereof held within Meadowbrook Run LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Morgan Stanley Senior Funding, Inc. (see Note 9).
[21] Security or portion thereof held within Ambler Funding LLC and is pledged as collateral supporting the amounts outstanding under the revolving credit facility with Ally Bank (see Note 9).
[22] Security or portion thereof held within Meadowbrook Run LLC and is pledged as collateral supporting the amounts outstanding under a revolving credit facility with Morgan Stanley Senior Funding, Inc. (see Note 9).
[23] Security held within IC Arches Investments, LLC, a wholly-owned subsidiary of the Company.
[24] Security is non-income producing.
[25] Asset is on non-accrual status.
[26] Security held within IC II Arches Investments, LLC, a wholly-owned subsidiary of the Company.
[27] The investment, or portion of the investment is not a qualifying asset under the Investment Company Act of 1940, as amended. A business development company may not acquire any asset other than qualifying assets, unless, at the time the acquisition is made, qualifying assets represent at least 70% of the company’s total assets. As of March 31, 2024, 74.8% of the Company’s total assets represented qualifying assets.
[28] Security held within IC Arches Investments LLC, a wholly-owned subsidiary of the Company.
[29] Security is non-income producing.
[30] Asset is on non-accrual status.
[31] Security held within IC II Arches Investments, LLC, a wholly-owned subsidiary of the Company.
[32] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of March 31, 2024, the Company held investments in portfolio companies of which it is deemed to be an “affiliated person” and deemed to “control”. During the three months ended March 31, 2024, the Company disposed of investments in portfolio companies of which it was deemed to be an “affiliated person” and deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person and deemed to control as of March 31, 2024:
Portfolio Company
Fair Value at December 31, 2023
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)
Fair Value at March 31, 2024
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Senior Secured Loans—First Lien
 ATX Networks Corp $65.1 $13.8 $(1.0)$— $— $77.9 $2.6 $— $— $— 
 Gracent LLC 24.5 0.8 — — 0.3 25.6 — 0.9 — — 
 HM Dunn Co Inc 35.8 — (0.2)— — 35.6 1.0 — — — 
 HM Dunn Co Inc 1.0 — — — — 1.0 — — — — 
 Kellermeyer Bergensons Services LLC — 10.5 (10.5)— — — — — — — 
 Kellermeyer Bergensons Services LLC — 185.8 — — 4.7 190.5 0.3 0.2 — — 
 Kellermeyer Bergensons Services LLC — 81.1 — — 1.7 82.8 0.1 0.2 — — 
 NCI Inc 32.2 1.0 — — — 33.2 — 1.0 — — 
 Production Resource Group LLC 168.6 4.0 (0.3)— (0.7)171.6 6.7 2.3 — — 
 Production Resource Group LLC 0.1 — — — — 0.1 — — — — 
 Production Resource Group LLC 63.6 0.7 (0.8)— (0.3)63.2 0.1 0.5 — — 
 Production Resource Group LLC 34.8 0.2 (0.4)— — 34.6 0.8 0.3 — — 
 Warren Resources Inc 18.8 0.2 — — (0.2)18.8 0.9 — — — 
Senior Secured Loans—Second Lien
Quoizel LLC6.5 0.2 — — — 6.7 — 0.2 — — 
Quoizel LLC6.8 0.2 — — — 7.0 — 0.2 — — 
Other Senior Secured Debt
 JW Aluminum Co 77.1 — — — 1.4 78.5 2.0 — — — 
 Wittur Holding GmbH — 55.8 — — (2.3)53.5 — 0.3 — — 
Subordinated Debt
ATX Networks Corp32.9 1.8 — — (15.5)19.2 0.2 0.5 — — 
Asset Based Finance
 801 5th Ave, Seattle, Structure Mezzanine 52.7 — — — (4.2)48.5 1.2 0.5 — — 
 801 5th Ave, Seattle, Private Equity — — — — — — — — — — 
 Abacus JV, Private Equity 48.5 — — — (1.7)46.8 — — — — 
 Avenue One PropCo, Private Equity 38.8 — (37.9)— (0.9)— — — — — 
 Avenue One PropCo, Private Equity — 10.2 — — 0.7 10.9 — — — — 
Portfolio Company
Fair Value at December 31, 2023
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)
Fair Value at March 31, 2024
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
 Avenue One PropCo, Term Loan $— $2.2 $28.4 $— $— $30.6 $— $— $— $— 
 Australis Maritime, Common Stock 35.8 — (6.3)— (1.7)27.8 — — — — 
 Australis Maritime II, Private Equity 12.2 1.1 — — 0.1 13.4 — — — — 
 Avida Holding AB, Common Stock 42.9 — — — (2.4)40.5 — — — — 
 Avida Holding AB, Subordinated Bond 1.5 — — — (0.1)1.4 — — — — 
 Capital Automotive LP, Private Equity 32.4 — (0.5)— — 31.9 — — — 0.8 
 Capital Automotive LP, Structured Mezzanine 41.5 — (0.1)— — 41.4 1.2 — — — 
 GreenSky Holdings LLC, Private Equity — 10.7 — — — 10.7 — — — — 
 GreenSky Holdings LLC, Term Loan — 32.0 — — — 32.0 — 0.1 — — 
 Kilter Finance, Preferred Stock 99.7 — — — — 99.7 3.6 — — — 
 Kilter Finance, Private Equity 0.5 — — — — 0.5 — — — — 
 KKR Altitude II Offshore Aggregator LP, Partnership Interest 65.6 20.2 — — 1.6 87.4 — — — 1.2 
 KKR Central Park Leasing Aggregator L.P., Partnership Interest 15.3 — — — 0.2 15.5 — — — — 
 KKR Chord IP Aggregator LP, Partnership Interest 99.9 — (89.3)— 19.9 30.5 — — — 0.1 
 KKR Rocket Loans Aggregator LLC, Partnership Interest 8.3 — (1.2)— 0.4 7.5 — — — — 
 KKR Zeno Aggregator LP (K2 Aviation), Partnership Interest 11.8 — — — (0.2)11.6 — — — — 
 My Community Homes PropCo 2, Private Equity 78.8 — (81.1)— 2.3 — — — — — 
 My Community Homes PropCo 2, Private Equity — 20.3 — — (2.6)17.7 — — — — 
 My Community Homes PropCo 2, Term Loan — 60.9 — — — 60.9 — — — — 
 Prime St LLC, Private Equity — — — — — — — — — — 
 Prime St LLC, Structured Mezzanine 33.1 0.1 — — 1.5 34.7 0.8 0.9 — — 
 Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity 241.0 — — — (6.5)234.5 — — — — 
 TDC LLP, Preferred Equity 27.8 10.4 — — 0.1 38.3 (0.3)— — — 
 TDC LLP, Preferred Equity 2.0 — — — — 2.0 — — — — 
Credit Opportunities Partners JV, LLC
Credit Opportunities Partners JV, LLC1,396.9 — — — (6.6)1,390.3 — — — 54.9 
Equity/Other
 ATX Networks Corp, Common Stock 25.9 — — — (25.9)— — — — — 
 ATX Networks Corp, Class B-1 Common Stock 2.5 — — — (2.5)— — — — — 
 ATX Networks Corp, Class B-2 Common Stock 0.8 — — — (0.8)— — — — — 
 Borden (New Dairy Opco), Common Stock(4)
— 4.9 (0.9)0.2 7.0 11.2 — — — — 
 Gracent LLC, Preferred Stock A — — — (8.0)8.0 — — — — — 
 Gracent LLC, Preferred Stock B — — — — — — — — — — 
 Gracent LLC, Class A Common Stock — — — — — — 
 Gracent LLC, Preferred Equity 3.8 — — — (0.5)3.3 
 HM Dunn Co Inc, Preferred Stock, Series A 25.1 — — — (0.9)24.2 — — — — 
Portfolio Company
Fair Value at December 31, 2023
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)
Fair Value at March 31, 2024
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
 HM Dunn Co Inc, Preferred Stock, Series B $— $— $— $— $— $— $— $— $— $— 
 JW Aluminum Co, Common Stock 2.5 — — — — 2.5 — — — — 
 JW Aluminum Co, Preferred Stock 148.7 — — — (0.1)148.6 — — — — 
 Kellermeyer Bergensons Services LLC, Common Stock — — — — — — — — — — 
 Kellermeyer Bergensons Services LLC, Preferred Stock — 48.3 — — — 48.3 — — — — 
 Quoizel, LLC (fka NBG Home), Common Stock 10.2 — — — (0.1)10.1 — — — — 
 NCI Inc, Class A-1 Common Stock — — — — — — — — — — 
 NCI Inc, Class B-1 Common Stock — — — — — — — — — — 
 NCI Inc, Class C Common Stock 19.7 — — — 0.6 20.3 — — — — 
 NCI Inc, Class I-1 Common Stock — — — — — — — — — — 
 PRG III LLC, Preferred Stock, Series A PIK 120.7 — — — 22.3 143.0 — — — — 
 PRG III LLC, Preferred Stock, Series B PIK — — — — — — — — — — 
 Quorum Health Corp, Trade Claim 0.9 — — — — 0.9 — — — — 
 Quorum Health Corp, Trust Initial Funding Units 0.1 — — — — 0.1 — — — — 
 Quorum Health Corp, Private Equity 7.7 0.9 — — (0.5)8.1 — — — — 
 Wittur Holding GmbH, Common Stock  8.0 — — (0.6)7.4 — — — — 
 Warren Resources Inc, Common Stock 12.3 — — — (0.9)11.4 — — — — 
Total$3,335.7 $586.3 $(202.1)$(7.8)$(5.9)$3,706.2 $21.2 $8.1 $— $57.0 
______________
(1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.
(2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.
(3)Interest, PIK, fee and dividend income presented for the full three months ended March 31, 2024.
(4)The Company held this investment as of December 31, 2023 but it was not deemed to “control” the portfolio company as of December 31, 2023. Transfers in or out have been presented at amortized cost.
[33] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of December 31, 2023, the Company held investments in one portfolio company of which it is deemed to be an “affiliated person” and deemed to “control”. During the year ended December 31, 2023, the Company disposed of investments in one portfolio of which it was deemed to be an “affiliated person” and deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person and deemed to control for the year ended December 31, 2023:
Portfolio CompanyFair Value at December 31, 2022
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2023
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Senior Secured Loans—First Lien
Tekfor HoldCo (formerly Amtek Global Technology Pte Ltd)$3.9 $— $(40.1)$— $36.2 $— $— $— $— $— 
ATX Networks Corp40.6 27.9 (3.4)— — 65.1 7.6 — 3.8 — 
Gracent LLC— 52.0 (23.1)(4.2)(0.2)24.5 0.4 2.3 — — 
HM Dunn Co Inc35.6 1.0 (0.8)— — 35.8 2.9 1.1 — — 
HM Dunn Co Inc— 1.0 — — — 1.0 0.1 — — — 
NCI Inc28.1 3.4 0.3 — 0.4 32.2 — 3.5 — — 
Production Resource Group LLC152.5 20.0 (1.2)— (2.7)168.6 23.8 8.5 — — 
Production Resource Group LLC0.1 — — — — 0.1 — — — — 
Production Resource Group LLC68.1 3.5 (6.4)0.1 (1.7)63.6 9.6 1.9 — — 
Production Resource Group LLC31.3 4.5 (1.6)— 0.6 34.8 3.6 1.1 — — 
Warren Resources Inc18.6 0.7 — — (0.5)18.8 3.1 0.2 — — 
Senior Secured Loans—Second Lien
Quoizel, LLC— 6.5 — — — 6.5 — 0.3 — — 
Quoizel, LLC— 6.8 — — — 6.8 — 0.4 — — 
Other Senior Secured Debt
JW Aluminum Co78.1 0.2 — — (1.2)77.1 8.0 — — — 
Subordinated Debt
ATX Networks Corp21.9 11.1 — — (0.1)32.9 — 3.7 — — 
Hilding Anders— — — (99.4)99.4 — — — — — 
Hilding Anders— — — — — — (0.3)— — — 
Hilding Anders— — — (26.9)26.9 — (0.1)— — — 
Asset Based Finance
801 5th Ave, Seattle, Structure Mezzanine58.9 2.0 — — (8.2)52.7 4.2 1.8 — — 
801 5th Ave, Seattle, Private Equity6.3 — — — (6.3)— — — — — 
Abacus JV, Private Equity(4)
— 48.2 (2.2)0.1 2.4 48.5 — — — 7.4 
Avenue One PropCo, Private Equity31.0 7.8 — — — 38.8 — — — — 
Australis Maritime, Common Stock(4)
— 53.2 (19.1)1.3 0.4 35.8 — — — 5.9 
Australis Maritime II, Private Equity— 10.9 — — 1.3 12.2 — — — — 
Avida Holding AB, Common Stock42.6 5.3 — — (5.0)42.9 — — — — 
Avida Holding AB, Subordinated Bond— 1.3 — — 0.2 1.5 — — — — 
Capital Automotive LP, Private Equity(4)
— 23.7 (0.5)— 9.2 32.4 — — — 3.8 
Capital Automotive LP, Structured Mezzanine(4)
— 41.8 (0.9)— 0.6 41.5 4.7 — — — 
Kilter Finance, Preferred Stock99.5 0.3 — — (0.1)99.7 15.0 — — — 
Kilter Finance, Private Equity0.5 — — — — 0.5 — — — — 
Portfolio CompanyFair Value at December 31, 2022
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2023
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
KKR Altitude II Offshore Aggregator LP, Partnership Interest$44.4 $19.5 $(0.6)$— $2.3 $65.6 $— $— $— $1.9 
KKR Central Park Leasing Aggregator L.P., Partnership Interest(4)
— 39.1 — — (23.8)15.3 — — — — 
KKR Chord IP Aggregator LP, Partnership Interest(4)
— 89.6 — — 10.3 99.9 — — — 4.3 
KKR Rocket Loans Aggregator LLC, Partnership Interest4.3 9.9 (5.0)— (0.9)8.3 — — — — 
KKR Zeno Aggregator LP (K2 Aviation), Partnership Interest(4)
— 23.0 (11.7)— 0.5 11.8 — — — — 
My Community Homes PropCo 2, Private Equity79.0 — (3.2)— 3.0 78.8 — — — — 
Prime ST LLC, Private Equity— — (0.1)— 0.1 — — — — — 
Prime ST LLC, Structured Mezzanine43.5 3.5 — — (13.9)33.1 3.0 3.3 — — 
Roemanu LLC (FKA Toorak Capital Partners LLC), Private Equity261.2 0.1 — — (20.3)241.0 — — — 14.5 
TDC LLP, Preferred Equity— 26.3 — — 1.5 27.8 1.5 — — — 
TDC LLP, Preferred Equity— 2.0 — — — 2.0 — — — 0.1 
Credit Opportunities Partners JV, LLC
Credit Opportunities Partners JV, LLC1,428.3 — — — (31.4)1,396.9 — — — 228.1 
Equity/Other
Amtek Global Technology Pte Ltd, Common Stock— — — — — — — — — — 
Amtek Global Technology Pte Ltd, Ordinary Shares— — — (30.7)30.7 — — — — — 
Amtek Global Technology Pte Ltd, Private Equity— — — — — — — — — — 
ATX Networks Corp, Common Stock29.2 8.2 — — (11.5)25.9 — — — — 
ATX Networks Corp, Class B-1 Common Stock5.0 — — — (2.5)2.5 — — — — 
ATX Networks Corp, Class B-2 Common Stock9.0 — — — (8.2)0.8 — — — — 
Gracent LLC, Preferred Stock A— 8.0 — — (8.0)— — — — — 
Gracent LLC, Preferred Stock B— — — — — — — — — — 
Gracent LLC, Class A Common Stock— — — — — — — — — — 
Gracent LLC, Preferred Equity— 8.2 — — (4.4)3.8 — — — — 
Hilding Anders, Class A Common Stock— — — (0.1)0.1 — — — — — 
Hilding Anders, Class B Common Stock— — — — — — — — — — 
Hilding Anders, Class C Common Stock— — — — — — — — — — 
Hilding Anders, Equity Options— — — (15.0)15.0 — — — — — 
HM Dunn Co Inc, Preferred Stock, Series A16.9 — — — 8.2 25.1 — — — — 
HM Dunn Co Inc, Preferred Stock, Series B— — — — — — — — — — 
JW Aluminum Co, Common Stock2.4 — — — 0.1 2.5 — — — — 
JW Aluminum Co, Preferred Stock112.5 18.6 (4.2)— 21.8 148.7 — 16.4 — — 
NCI Inc, Class A-1 Common Stock— — — — — — — — — — 
NCI Inc, Class B-1 Common Stock— — — — — — — — — — 
NCI Inc, Class C Common Stock20.2 — — — (0.5)19.7 — — — — 
NCI Inc, Class I-1 Common Stock— — — — — — — — — — 
PRG III LLC, Preferred Stock, Series A PIK105.7 — — — 15.0 120.7 — — — — 
PRG III LLC, Preferred Stock, Series B PIK— — — — — — — — — — 
Portfolio CompanyFair Value at December 31, 2022
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2023
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Quoizel, LLC, Common Stock$— $8.3 $— $— $1.9 $10.2 $— $— $— $— 
Quorum Health Corp, Trade Claim(4)
— 0.7 — — 0.2 0.9 — — — — 
Quorum Health Corp, Trust Initial Funding Units(4)
— 0.2 — — (0.1)0.1 — — — — 
Quorum Health Corp, Private Equity— 0.9 — — 6.8 7.7 — — — — 
Warren Resources Inc, Common Stock29.2 — — — (16.9)12.3 — — — — 
Total$2,908.4 $599.2 $(123.8)$(174.8)$126.7 $3,335.7 $87.1 $44.5 $3.8 $266.0 
______________
(1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.
(2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.
(3)Interest, PIK, fee and dividend income presented for the full year ended December 31, 2023.
(4)The Company held this investment as of December 31, 2022 but it was not deemed to be in “control” of the portfolio company as of December 31, 2022. Transfers in or out have been presented at amortized cost.
[34] Security or portion thereof held within Juniata River LLC and is pledged as collateral supporting the amounts outstanding under a term loan credit facility with JPMorgan Chase Bank, N.A. (see Note 9).
[35] Security or portion thereof held within Juniata River LLC and is pledged as collateral supporting the amounts outstanding under a term loan credit facility with JPMorgan Chase Bank, N.A. (see Note 9).
[36] The Company held this investment as of December 31, 2022 but it was not deemed to be in “control” of the portfolio company as of December 31, 2022. Transfers in or out have been presented at amortized cost.
[37] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to be an “affiliated person” of a portfolio company if it owns 5% or more of the portfolio company’s voting securities and generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of March 31, 2024, the Company held investments in portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person as of March 31, 2024:
Portfolio Company
Fair Value at December 31, 2023
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)
Fair Value at March 31, 2024
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Senior Secured Loans—First Lien
 Affordable Care Inc $35.6 $1.2 $(1.4)$— $0.6 $36.0 $1.1 $— $— $— 
 Affordable Care Inc 7.3 3.4 — — 0.1 10.8 0.3 — — — 
 Belk Inc 13.2 — (2.1)0.3 2.9 14.3 — — — — 
 Belk Inc 20.0 — — — 0.2 20.2 0.8 — — — 
 Constellis Holdings LLC 15.1 0.1 — — (0.1)15.1 0.6 — — — 
 Galaxy Universal LLC 86.4 — (0.2)— 0.7 86.9 2.5 — — — 
 Galaxy Universal LLC 18.1 — — — 0.3 18.4 0.5 — — — 
 One Call Care Management Inc 4.2 — — — 0.4 4.6 0.1 — — — 
Senior Secured Loans—Second Lien
 Belk Inc — — — — — — — — — — 
 Constellis Holdings LLC 9.0 — (0.1)— 0.7 9.6 0.5 — — — 
Other Senior Secured Debt
 One Call Care Management Inc 20.6 0.2 — — 0.8 21.6 — 0.7 — — 
Asset Based Finance
 Altavair AirFinance, Private Equity 133.9 — (0.1)— 0.9 134.7 — — — 4.0 
 Accelerator Investments Aggregator LP, Private Equity 2.5 — — — (0.1)2.4 — — — — 
 Home Partners JV 2, Structured Mezzanine 11.4 0.3 — — — 11.7 — 0.3 — — 
 Home Partners JV 2, Private Equity 0.2 — — — — 0.2 — — — — 
 Home Partners JV 2, Private Equity 4.2 — — — (0.1)4.1 — — — — 
Equity/Other
 Affordable Care Inc, Preferred Stock 50.0 — — — 0.1 50.1 — 1.4 — — 
 athenahealth Inc, Preferred Stock 252.6 — — — (2.1)250.5 — 7.3 — — 
 Belk Inc, Common Stock — — — — — — — — — — 
 Borden (New Dairy Opco), Common Stock(4)
11.2 — (4.9)— (6.3)— — — — — 
 Constellis Holdings LLC, Private Equity — — — — — — — — — — 
 Fronton BV, Common Stock 1.8 — — — (0.1)1.7 — — — — 
 Galaxy Universal LLC, Common Stock 0.5 — — — 9.4 9.9 — — — — 
 Galaxy Universal LLC, Trade Claim 1.0 — — — — 1.0 — — — — 
 Galaxy Universal LLC, Preferred Stock 5.5 — — — 0.6 6.1 — 0.1 — — 
 One Call Care Management Inc, Preferred Stock A 18.5 — — — 0.3 18.8 — — — — 
 One Call Care Management Inc, Common Stock 1.9 — — — 0.4 2.3 — — — — 
 One Call Care Management Inc, Preferred Stock B 7.7 — (0.1)— 0.1 7.7 — 0.2 — — 
 Proserv Acquisition LLC, Class A Common Units 3.5 — — — (0.2)3.3 — — — — 
 Proserv Acquisition LLC, Class A Preferred Units 9.5 — — — — 9.5 — — — — 
 ThermaSys Corp, Common Stock — — — (10.2)10.2 — — — — — 
Total$745.4 $5.2 $(8.9)$(9.9)$19.7 $751.5 $6.4 $10.0 $— $4.0 
______________
(1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.
(2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.
(3)Interest, PIK, fee and dividend income presented for the full three months ended March 31, 2024.
[38] Under the Investment Company Act of 1940, as amended, the Company generally is deemed to be an “affiliated person” of a portfolio company if it owns 5% or more of the portfolio company’s voting securities and generally is deemed to “control” a portfolio company if it owns more than 25% of the portfolio company’s voting securities or it has the power to exercise control over the management or policies of such portfolio company. As of December 31, 2023, the Company held investments in portfolio companies of which it is deemed to be an “affiliated person” but is not deemed to “control”. The following table presents certain information with respect to investments in portfolio companies of which the Company was deemed to be an affiliated person for the year ended December 31, 2023:
Portfolio CompanyFair Value at December 31, 2022
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2023
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Senior Secured Loans—First Lien
Affordable Care Inc$53.1 $8.1 $(26.5)$(0.2)$1.1 $35.6 $4.6 $0.3 $0.4 $— 
Affordable Care Inc— 7.4 — — (0.1)7.3 0.3 — 0.1 — 
Belk Inc8.8 — (7.9)1.0 11.3 13.2 0.2 — — — 
Belk Inc19.4 — — — 0.6 20.0 3.0 — — — 
Constellis Holdings LLC15.0 0.2 — — (0.1)15.1 2.1 — 0.1 — 
Galaxy Universal LLC— 7.5 (7.5)— — — 0.7 — 0.5 — 
Galaxy Universal LLC— 88.0 (0.9)— (0.7)86.4 9.6 — — — 
Galaxy Universal LLC— 21.7 (3.2)— (0.4)18.1 1.9 — — — 
One Call Care Management Inc(4)
— 4.7 — — (0.5)4.2 0.6 — — — 
Sungard Availability Services Capital Inc0.5 — (1.1)(4.7)5.3 — — — — — 
Sungard Availability Services Capital Inc2.0 — (2.0)— — — — — 0.1 — 
ThermaSys Corp8.6 — (5.1)(3.2)(0.3)— (0.2)— — — 
Senior Secured Loans—Second Lien
Belk Inc3.3 — — — (3.3)— — — — — 
Constellis Holdings LLC13.5 0.3 — — (4.8)9.0 2.4 — 0.1 — 
Sungard Availability Services Capital Inc— — — (13.5)13.5 — — — — — 
Other Senior Secured Debt
 One Call Care Management Inc(4)
— 26.3 — — (5.7)20.6 — 2.5 — — 
Asset Based Finance
Portfolio CompanyFair Value at December 31, 2022
Gross Additions(1)
Gross Reductions(2)
Net Realized Gain (Loss)Net Change in Unrealized Appreciation (Depreciation)Fair Value at December 31, 2023
Interest Income(3)
PIK Income(3)
Fee Income(3)
Dividend and Other Income(3)
Altavair AirFinance, Private Equity(4)
$— $141.2 $(11.3)$— $4.0 $133.9 $— $— $— $27.9 
Accelerator Investments Aggregator LP, Private Equity4)
— 4.5 (1.2)(0.1)(0.7)2.5 — — — — 
Home Partners JV 2, Structured Mezzanine10.2 1.2 — — — 11.4 — 1.1 — — 
Home Partners JV 2, Private Equity0.2 — — — — 0.2 — — — — 
Home Partners JV 2, Private Equity5.0 — — — (0.8)4.2 — — — — 
Equity/Other
Affordable Care Inc, Preferred Stock49.9 — — — 0.1 50.0 — 5.5 — — 
athenahealth Inc, Preferred Stock231.2 — — — 21.4 252.6 — 29.2 — — 
Belk Inc, Common Stock— — — — — — — — — — 
Borden (New Dairy Opco), Common Stock4.8 — (5.2)1.0 10.6 11.2 — — — — 
Constellis Holdings LLC, Private Equity6.3 — — — (6.3)— — — — — 
Fronton BV, Common Stock1.0 — — — 0.8 1.8 — — — — 
Galaxy Universal LLC, Common Stock(4)
— 35.4 — — (34.9)0.5 — — — — 
Galaxy Universal LLC, Trade Claim(4)
— 4.6 (2.1)— (1.5)1.0 — — — — 
Galaxy Universal LLC, Preferred Stock— 4.0 — — 1.5 5.5 — 0.1 — — 
One Call Care Management Inc, Preferred Stock A(4)
— 22.8 — — (4.3)18.5 — — — — 
One Call Care Management Inc, Common Stock(4)
— 2.1 — — (0.2)1.9 — — — — 
One Call Care Management Inc, Preferred Stock B(4)
— 8.0 — — (0.3)7.7 — 0.7 — — 
Proserv Acquisition LLC, Class A Common Units1.1 — — — 2.4 3.5 — — — — 
Proserv Acquisition LLC, Class A Preferred Units9.5 — — — — 9.5 — — — — 
ThermaSys Corp, Common Stock— — — — — — — — — — 
ThermaSys Corp, Preferred Stock— — (0.2)(1.5)1.7 — — — — — 
Total$443.4 $388.0 $(74.2)$(21.2)$9.4 $745.4 $25.2 $39.4 $1.3 $27.9 
______________
(1)Gross additions include increases in the cost basis of investments resulting from new portfolio investments, PIK interest, the amortization of unearned income, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company into this category from a different category.
(2)Gross reductions include decreases in the cost basis of investments resulting from principal collections related to investment repayments or sales, the exchange of one or more existing securities for one or more new securities and the movement of an existing portfolio company out of this category into a different category.
(3)Interest, PIK, fee and dividend income presented for the full year ended December 31, 2023.
(4)The Company held this investment as of December 31, 2022 but it was not deemed to be an “affiliated person” of the portfolio company as of December 31, 2022. Transfers in or out have been presented at amortized cost.
[39] The Company held this investment as of December 31, 2022 but it was not deemed to be an “affiliated person” of the portfolio company as of December 31, 2022. Transfers in or out have been presented at amortized cost.
[40] Security is classified as Level 1 or Level 2 in the Company’s fair value hierarchy (see Note 8).
[41] Security is classified as Level 1 or 2 in the Company's fair value hierarchy (see Note 8).
[42] Security or portion thereof was held within FSK CLO as of December 31, 2023.
[43] Security or portion thereof held within FS KKR MM CLO 1 LLC (see Note 9).
[44] Security or portion thereof was held within CCT Tokyo Funding LLC and was pledged as collateral supporting the amounts outstanding under the revolving credit facility with Sumitomo Mitsui Banking Corporation (see Note 9).
[45] Security held within CCT Holdings II, LLC, a wholly-owned subsidiary of the Company.
[46] Security held within FSIC II Investments, Inc., a wholly-owned subsidiary of the Company.
[47] Security held within IC American Energy Investments, Inc., a wholly-owned subsidiary of the Company.
[48] Security held within IC American Energy Investments, Inc., a wholly-owned subsidiary of the Company.
[49] The Company held this investment as of March 31, 2024 but it was not deemed to be an "affiliated person" of the portfolio company as of March 31, 2024.
[50] The Company held this investment as of December 31, 2023 but it was not deemed to “control” the portfolio company as of December 31, 2023. Transfers in or out have been presented at amortized cost.
[51] Security held within CCT Holdings II, LLC, a wholly-owned subsidiary of the Company
[52] Security held within FSIC II Investments, Inc., a wholly-owned subsidiary of the Company.
[53] Security or portion thereof held within Race Street Funding LLC. Security is available as collateral to support the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).
[54] Security or portion thereof held within Race Street Funding LLC. Security is available as collateral supporting the amounts outstanding under the Senior Secured Revolving Credit Facility (see Note 9).
[55] Security or portion thereof held within Cobbs Creek LLC and is pledged as collateral supporting the amounts outstanding under the senior secured revolving credit facility (see Note 9).
[56] Security held within FSIC Investments, Inc., a wholly-owned subsidiary of the Company.
[57] Security held within FSIC Investments, Inc., a wholly-owned subsidiary of the Company.
[58] Security or portion thereof held within Cobbs Creek LLC and is pledged as collateral supporting the amounts outstanding under the senior secured revolving credit facility (see Note 9).
[59] Position or portion thereof unsettled as of March 31, 2024.