v3.26.1
Derivative Instruments - Summary of Gains (Losses) Recognized on Derivatives, by Contract Type (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives $ 522 $ 0 $ 806 $ 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives 1,675 (2,190) 3,982 (1,835)
Series I [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives 151 0 235 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives 446 (615) 1,124 (520)
Series II [Member]        
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives 371 0 571 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives 1,229 (1,575) 2,858 (1,315)
Currency Risk | Foreign Currency Forward Contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives 522 0 806 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives 1,675 (2,190) 3,982 (1,835)
Currency Risk | Series I [Member] | Foreign Currency Forward Contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives 151 0 235 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives 446 (615) 1,124 (520)
Currency Risk | Series II [Member] | Foreign Currency Forward Contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Net realized gain (loss) on derivatives 371 0 571 0
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives $ 1,229 $ (1,575) $ 2,858 $ (1,315)