v3.26.1
Investment Valuations and Fair Value Measurements - Summary of Major Security Type of Fair Valuations (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value $ 431,205 $ 680,172
Debt    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 50,710 112,090
Equity    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 110,653 114,444
Investment Funds & Vehicles    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 16,982 [1] 37,189 [2]
Short-Term Investments    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 246,923 395,457
Cash Equivalents    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 5,937 20,992
Fair Value, Inputs, Level 1    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 252,860 416,449
Fair Value, Inputs, Level 1 | Debt    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 1 | Equity    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 1 | Investment Funds & Vehicles    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 [1] 0 [2]
Fair Value, Inputs, Level 1 | Short-Term Investments    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 246,923 395,457
Fair Value, Inputs, Level 1 | Cash Equivalents    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 5,937 20,992
Fair Value, Inputs, Level 2    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 2 | Debt    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 2 | Equity    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 2 | Investment Funds & Vehicles    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 [1] 0 [2]
Fair Value, Inputs, Level 2 | Short-Term Investments    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 2 | Cash Equivalents    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 3    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 161,363 226,534
Fair Value, Inputs, Level 3 | Debt    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 50,710 112,090
Fair Value, Inputs, Level 3 | Equity    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 110,653 114,444
Fair Value, Inputs, Level 3 | Investment Funds & Vehicles    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 [1] 0 [2]
Fair Value, Inputs, Level 3 | Short-Term Investments    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value, Inputs, Level 3 | Cash Equivalents    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value Measured at Net Asset Value Per Share    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 16,982 37,189
Fair Value Measured at Net Asset Value Per Share | Debt    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value Measured at Net Asset Value Per Share | Equity    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value Measured at Net Asset Value Per Share | Investment Funds & Vehicles    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 16,982 [1] 37,189 [2]
Fair Value Measured at Net Asset Value Per Share | Short-Term Investments    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value 0 0
Fair Value Measured at Net Asset Value Per Share | Cash Equivalents    
Investment Valuations And Fair Value Measurements [Line Items]    
Investment, fair value $ 0 $ 0
[1] Includes equity investments in Strategic Ventures. In accordance with ASC Topic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Statements of Assets and Liabilities.
[2] Includes equity investments in Strategic Ventures. In accordance with ASC Topic 820-10, certain investments that are measured at fair value using the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Statements of Assets and Liabilities.