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Fair Value of Financial Instruments - Schedule of Equity Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Total net change in unrealized appreciation (depreciation) | $ (31,209) | $ 25,010 | $ (85,063)
Significant Unobservable Inputs (Level 3) | Debt Investments |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Total net change in unrealized appreciation (depreciation) | (44,200) | 11,500 |
Significant Unobservable Inputs (Level 3) | Preferred Stock Investment |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Total net change in unrealized appreciation (depreciation) | (5,900) | (4,600) |
Significant Unobservable Inputs (Level 3) | Common Stock Investment |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Total net change in unrealized appreciation (depreciation) | (2,400) | 11,300 |
Significant Unobservable Inputs (Level 3) | Warrants |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |
Total net change in unrealized appreciation (depreciation) | $ 700 | $ 1,500 |

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