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Investments - Schedule of Valuation Techniques and Significant Inputs of Level III Investments (Details) - Level III $ in Thousands | Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 365,653 | $ 357,528
Debt securities | Enterprise Value |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 40,404 | $ 10,371
Debt securities | Enterprise Value | Average EBITDA Multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 0.4
Debt securities | Enterprise Value | Average EBITDA Multiple | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 0.4 |
Debt securities | Enterprise Value | Average EBITDA Multiple | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 8.8 | 9.5
Debt securities | Enterprise Value | Average EBITDA Multiple | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 5.7 | 1
Debt securities | Enterprise Value | Recovery Rate Multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 0.1
Debt securities | Enterprise Value | Expected Sale Proceeds |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 97.6
Debt securities | Enterprise Value | Expected Sale Proceeds | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 6.3 |
Debt securities | Enterprise Value | Expected Sale Proceeds | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 90.3 |
Debt securities | Enterprise Value | Expected Sale Proceeds | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 87.4 |
Debt securities | Enterprise Value | Average Settlement Value |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 61
Debt securities | Enterprise Value | Average Settlement Value | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 47.1 |
Debt securities | Enterprise Value | Average Settlement Value | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 47.1 |
Debt securities | Enterprise Value | Average Settlement Value | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 47.1 |
Debt securities | Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 279,749 | $ 298,111
Debt securities | Income Approach | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 0.5 | 5.3
Debt securities | Income Approach | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 21.49 | 40.7
Debt securities | Income Approach | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 11.9 | 12.4
Debt securities | Recent Transaction |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments |  | $ 5,270
Debt securities | Recent Transaction | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 13.8
Debt securities | Recent Transaction | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 14.2
Debt securities | Recent Transaction | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 14
Equity Securities | Enterprise Value |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 18,574 | $ 19,805
Equity Securities | Enterprise Value | Average EBITDA Multiple | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 1.5 | 5
Equity Securities | Enterprise Value | Average EBITDA Multiple | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 18.3 | 18
Equity Securities | Enterprise Value | Average EBITDA Multiple | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 6.2 | 6.9
Equity Securities | Enterprise Value | Average EBITDA Multiple / WACC | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 0.4 | 0.4
Equity Securities | Enterprise Value | Average EBITDA Multiple / WACC | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 3.7 | 3.7
Equity Securities | Enterprise Value | Average EBITDA Multiple / WACC | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 1.1 | 1.1
Equity Securities | Enterprise Value | Book Value of Equity |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 1
Equity Securities | Enterprise Value | Book Value of Equity | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 1 |
Equity Securities | Enterprise Value | Book Value of Equity | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 8 | 1.6
Equity Securities | Enterprise Value | Book Value of Equity | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 6.3 | 1.6
Equity Securities | Income Approach |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 4,182 | $ 57
Equity Securities | Income Approach | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 0.15 | 15
Equity Securities | Income Approach | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | (0.1795) |
Equity Securities | Income Approach | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 0.18 |
Equity Securities | Recent Transaction |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 672 | $ 671
Equity Securities | Recent Transaction | Discount Rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs |  | 0.124
Equity Securities | Recent Transaction | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 12.4 |
Equity Securities | Recent Transaction | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 12.4 |
Equity Securities | Recent Transaction | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 12.4 |
CLO Fund Securities | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 8,549 | $ 8,968
CLO Fund Securities | Discounted Cash Flow | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 18.1 | 18.4
CLO Fund Securities | Discounted Cash Flow | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 24.9 | 25.2
CLO Fund Securities | Discounted Cash Flow | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 20.9 | 21.1
CLO Fund Securities | Discounted Cash Flow | Recovery Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 65 | 65
CLO Fund Securities | Discounted Cash Flow | Recovery Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 75 | 75
CLO Fund Securities | Discounted Cash Flow | Recovery Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 70 | 70
CLO Fund Securities | Discounted Cash Flow | Probability of Default | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 1.8 | 1.8
CLO Fund Securities | Discounted Cash Flow | Probability of Default | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 2.5 | 2.5
CLO Fund Securities | Discounted Cash Flow | Probability of Default | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 2 | 2
CLO Fund Securities | Discounted Cash Flow | Prepayment Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 15 | 15
CLO Fund Securities | Discounted Cash Flow | Prepayment Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 25 | 25
CLO Fund Securities | Discounted Cash Flow | Prepayment Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 20 | 20
Joint Ventures | Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair value of investments | $ 13,523 | $ 14,275
Joint Ventures | Discounted Cash Flow | Discount Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 19.6 | 20.5
Joint Ventures | Discounted Cash Flow | Discount Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 21.1 | 22.1
Joint Ventures | Discounted Cash Flow | Discount Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 20.3 | 21.3
Joint Ventures | Discounted Cash Flow | Recovery Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 65 | 65
Joint Ventures | Discounted Cash Flow | Recovery Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 75 | 75
Joint Ventures | Discounted Cash Flow | Recovery Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 70 | 70
Joint Ventures | Discounted Cash Flow | Probability of Default | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 2.8 | 2.8
Joint Ventures | Discounted Cash Flow | Probability of Default | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 3.3 | 3.3
Joint Ventures | Discounted Cash Flow | Probability of Default | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 3 | 3
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 15 | 15
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 25 | 25
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Weighted Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 20 | 20
Derivatives | Enterprise Value | Average EBITDA Multiple |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Range of Inputs | 2.5 | 2.5

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