Quarterly report [Sections 13 or 15(d)]

FAIR VALUE HIERARCHY FOR INVESTMENTS???PORTFOLIO COMPOSITION - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details)

v3.25.2
FAIR VALUE HIERARCHY FOR INVESTMENTS—PORTFOLIO COMPOSITION - Schedule of Fair Value Measurement Inputs and Valuation Techniques (Details)
$ in Thousands
Jun. 30, 2025
USD ($)
decimal
Dec. 31, 2024
USD ($)
decimal
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Total Level 3 investments | $ $ 1,245,563 [1] $ 1,177,507 [2]
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Total Level 3 investments | $ $ 1,245,563 $ 1,177,507
Significant Unobservable Inputs (Level 3) | Minimum | EBITDA multiple, outlier    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 2.0 2.0
Significant Unobservable Inputs (Level 3) | Minimum | Risk adjusted discount factor, outlier    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.060 0.068
Significant Unobservable Inputs (Level 3) | Maximum | EBITDA multiple, outlier    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 13.5 17.0
Significant Unobservable Inputs (Level 3) | Maximum | Risk adjusted discount factor, outlier    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.360 0.383
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Total Level 3 investments | $ $ 290,620 $ 281,831
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | Minimum | WACC    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.114 0.115
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | Maximum | WACC    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.224 0.225
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | Weighted Average | WACC    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.147 0.148
Significant Unobservable Inputs (Level 3) | Equity investments | Discounted cash flow | Median | WACC    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.151 0.151
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | Minimum | EBITDA multiple    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 5.0 4.9
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | Maximum | EBITDA multiple    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 8.9 9.0
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | Weighted Average | EBITDA multiple    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 6.7 6.6
Significant Unobservable Inputs (Level 3) | Equity investments | Market comparable / Enterprise value | Median | EBITDA multiple    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 6.7 6.5
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Total Level 3 investments | $ $ 950,201 $ 862,813
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Minimum | Risk adjusted discount factor    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.083 0.085
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Minimum | Expected principal recovery percentage    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.003 0.003
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Maximum | Risk adjusted discount factor    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.180 0.180
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Maximum | Expected principal recovery percentage    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 5.000 1.000
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Weighted Average | Risk adjusted discount factor    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.128 0.132
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Weighted Average | Expected principal recovery percentage    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.990 0.997
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Median | Risk adjusted discount factor    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 0.120 0.121
Significant Unobservable Inputs (Level 3) | Debt investments | Discounted cash flow | Median | Expected principal recovery percentage    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 1.000 1.000
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Total Level 3 investments | $ $ 4,742 $ 32,863
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Minimum | Third-party quote    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 14.5 21.0
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Maximum | Third-party quote    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 70.0 99.4
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Weighted Average | Third-party quote    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 47.8 82.9
Significant Unobservable Inputs (Level 3) | Debt investments | Market approach | Median | Third-party quote    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Measurement input 40.0 84.5
[1] Investment Fair Value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par.
[2] Investment Fair Value was determined using significant unobservable inputs, unless otherwise noted. See Note C — Fair Value Hierarchy for Investments — Portfolio Composition for further discussion. Negative fair value is the result of the capitalized discount on the loan or the unfunded commitment being valued below par.