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Fair Value Measurements - Summary of Significant Unobservable Inputs by Valuation Technique to Determine Fair Value (Details) $ in Thousands | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value | $ 421,305 | $ 429,785
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 | $ 118,669 | $ 112,008
Equity Investments, Warrants fair value | $ 5,810 | $ 4,625
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 | 6.5 | 6
Level 3 | Enterprise Value | EBITDA Multiples | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity Investments, Equity, Range | 28 | 32
Equity investments, Warrants range | 6.5 | 6
Level 3 | Enterprise Value | EBITDA Multiples | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity Investments, Equity, Range | 10.4 | 9.5
Equity investments, Warrants range | 6.5 | 6
Level 3 | Enterprise Value | Revenue Multiples |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity Investments, Equity Fair Value | $ 6,772 | $ 7,999
Equity Investments, Warrants fair value | $ 141 | $ 143
Level 3 | Enterprise Value | Revenue Multiples | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Equity Investments, Equity, Range | 0.8 | 0.7
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 | 9.5
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 | 7.7 | 7.5
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, Fair Value | $ 148,387 | $ 134,965
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 | 0.104 | 0.103
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 | 0.162 | 0.164
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 | 0.136 | 0.134
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value |  | $ 208
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range |  | 6
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range |  | 6
Level 3 | Subordinated Debt | Enterprise Value | EBITDA Multiples | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range |  | 6
Level 3 | First Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value | $ 629,765 | $ 573,140
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 | 0.091 | 0.094
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 | 0.24 | 0.234
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 | 0.153 | 0.156
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value | $ 3,525 | $ 5,000
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range | 1.5 | 1.3
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range | 1.5 | 1.3
Level 3 | First Lien Debt | Enterprise Value | Asset Coverage | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Range | 1.5 | 1.3
Level 3 | Second Lien Debt | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value | $ 51,900 | $ 50,500
Level 3 | Second Lien Debt | Discounted Cash Flow | Weighted Average Cost of Capital |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Debt Investments, Fair Value | $ 134,749 | $ 119,561
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 | 0.128 | 0.127
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 | 0.50 | 0.30
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 | 0.167 | 0.161

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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