Derivative Instruments - Summary of Gains (Losses) Recognized on Derivatives, by Contract Type (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	$ (431)	$ (431)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	1,807	(28)
Series I [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	(126)	(126)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	542	22
Series II [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	(305)	(305)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	1,265	(50)
Currency Risk \| Foreign Currency Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	(431)	(431)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	1,807	(28)
Currency Risk \| Series I [Member] \| Foreign Currency Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	(126)	(126)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	542	22
Currency Risk \| Series II [Member] \| Foreign Currency Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss) on derivatives	(305)	(305)
Net Change in Unrealized Appreciation/(Depreciation) from Derivatives	$ 1,265	$ (50)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References + Details

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