v3.26.3
Fair Value Measurements - Investments - Summary of Fair Value Measurements of Investments, By Major Class within Fair Value Hierarchy (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value $ 1,222,641
Portfolio companies  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 886,648
Investments in Money Market Funds  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 332,597
Foreign Currency Forward Contracts  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 3,396
Level I  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 332,597
Level I | Investments in Money Market Funds  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 332,597
Level II  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 3,396
Level II | Foreign Currency Forward Contracts  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 3,396
Level III  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value 886,648
Level III | Portfolio companies  
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]  
Fair Value $ 886,648 [1]
[1] The directional change from an increase in the weight ascribed to the market comparables approach would increase the fair value of the Level III investments if the market comparables approach results in a higher valuation than the discounted cash flow approach and transaction price approach. The opposite would be true if the market comparables approach results in a lower valuation than the discounted cash flow approach and transaction price approach.