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Fair Value of Financial Instruments - Schedule of Equity Investments (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |
Total net change in unrealized appreciation (depreciation) | $ (34,722) | $ 18,858 | $ (31,088) | $ 39,963
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) |  |  | (17,500) | 23,000
Significant Unobservable Inputs (Level 3) | Preferred Stock |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |
Total net change in unrealized appreciation (depreciation) |  |  | (10,500) | (1,700)
Significant Unobservable Inputs (Level 3) | Common Stock |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |
Total net change in unrealized appreciation (depreciation) |  |  | (1,500) | 8,300
Significant Unobservable Inputs (Level 3) | Warrant Investments |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |  |  |
Total net change in unrealized appreciation (depreciation) |  |  | $ (2,000) | $ (800)

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