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Fair Value Measurements - Summary of Significant Unobservable Inputs by Valuation Technique to Determine Fair Value (Details)
$ in Thousands
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 429,785 $ 368,817
Derivative Asset, Statement of Financial Position [Extensible Enumeration] Assets Assets
Level 3 | Enterprise Value | EBITDA Multiples    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity Fair Value $ 112,008 $ 111,808
Equity Investments, Warrants fair value $ 4,625 $ 1,949
Level 3 | Enterprise Value | EBITDA Multiples | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 4 4
Equity investments, Warrants range 6 6
Level 3 | Enterprise Value | EBITDA Multiples | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 32.5 16.8
Equity investments, Warrants range 6 6
Level 3 | Enterprise Value | EBITDA Multiples | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 9.5 8.1
Equity investments, Warrants range 6 6
Level 3 | Enterprise Value | Revenue Multiples    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity Fair Value $ 7,999 $ 5,623
Equity Investments, Warrants fair value $ 143 $ 130
Level 3 | Enterprise Value | Revenue Multiples | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 0.7 0.9
Equity investments, Warrants range 4.5 4.5
Level 3 | Enterprise Value | Revenue Multiples | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 9.5 7.8
Equity investments, Warrants range 4.5 4.5
Level 3 | Enterprise Value | Revenue Multiples | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Equity Investments, Equity, Range 7.5 6.4
Equity investments, Warrants range 4.5 4.5
Level 3 | Subordinated Debt | Discounted Cash Flow | Weighted Average Cost of Capital    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 134,965 $ 97,706
Level 3 | Subordinated Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.103 0.10
Level 3 | Subordinated Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.164 0.152
Level 3 | Subordinated Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.134 0.125
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 208 $ 3,750
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 6 8.5
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 6 8.5
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 6 8.5
Level 3 | First Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 573,140 $ 441,830
Level 3 | First Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.094 0.089
Level 3 | First Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.234 0.219
Level 3 | First Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.156 0.155
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 5,000 $ 11,000
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 1.3 1.1
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 1.3 1.1
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 1.3 1.1
Level 3 | First Lien Debt | Enterprise Value | Revenue Multiples    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments   $ 3,275
Level 3 | First Lien Debt | Enterprise Value | Revenue Multiples | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   4.3
Level 3 | First Lien Debt | Enterprise Value | Revenue Multiples | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   4.3
Level 3 | First Lien Debt | Enterprise Value | Revenue Multiples | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   4.3
Level 3 | Second Lien Debt | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 50,500 $ 18,000
Level 3 | Second Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 119,561 $ 180,825
Level 3 | Second Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.127 0.117
Level 3 | Second Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.30 0.25
Level 3 | Second Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range 0.161 0.145
Level 3 | Second Lien Debt | Enterprise Value | Asset Coverage    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments   $ 2,123
Level 3 | Second Lien Debt | Enterprise Value | Asset Coverage | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   0.8
Level 3 | Second Lien Debt | Enterprise Value | Asset Coverage | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   0.8
Level 3 | Second Lien Debt | Enterprise Value | Asset Coverage | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   0.8
Level 3 | Second Lien Debt | Enterprise Value | EBITDA Multiples | Minimum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   5
Level 3 | Second Lien Debt | Enterprise Value | EBITDA Multiples | Maximum    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   5
Level 3 | Second Lien Debt | Enterprise Value | EBITDA Multiples | Weighted Average    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt Investments, Range   5