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Fair Value Measurements - Summary of Significant Unobservable Inputs by Valuation Technique to Determine Fair Value (Parenthetical) (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 425,996 $ 368,817
Level 3 | Second Lien Debt | Discounted Cash Flow    
Fair Value Measurement Inputs and Valuation Techniques [Line Items]    
Debt investments $ 53,000 $ 18,000