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Fair Value Measurement - Summary of Ranges of Significant Unobservable Inputs Used to Value Level 3 Assets (Parenthetical) (Details) $ in Thousands | Mar. 31, 2026 USD ($) | Dec. 31, 2025 USD ($)
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Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |
Debt investments, Fair Value | $ 3,228,940 | $ 3,261,721
Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |
Debt investments, Fair Value | 3,148,414 | 3,207,527
Income Approach | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |
Debt investments, Fair Value | $ 2,909,847 | $ 2,737,368
Fair value of debt investments percentage using income approach | 0.935 | 0.865
Investment Adviser did not Develop Unobservable Inputs | Level 3 |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items] |  |
Debt investments, Fair Value | $ 17,245 | $ 309,999

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