Fair Value Measurement - Summary of Ranges of Significant Unobservable Inputs Used to Value Level 3 Assets (Parenthetical) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Debt investments, Fair Value	$ 3,923,437	$ 1,788,119
Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Debt investments, Fair Value	3,007,441	1,605,348
Income Approach | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Debt investments, Fair Value	$ 2,108,262	$ 877,507
Fair value of debt investments percentage using income approach	70.30%	54.70%
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	$ 896,350	$ 706,287