Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Accounting Policies [Line Items]
Cash and cash equivalents	$ 171,459		$ 171,459		$ 197,392
Deferred offering expenses amortization	132	$ 133	266	$ 266
Deferred offering expenses	1,267		1,267		1,534
Series I [Member]
Accounting Policies [Line Items]
Cash and cash equivalents	48,816		48,816		58,111
Deferred offering expenses amortization	38	38	78	74
Deferred offering expenses	367		$ 367		456
Series I [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Income tax years open to examination			3 years
Series I [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Income tax years open to examination			5 years
Series II [Member]
Accounting Policies [Line Items]
Cash and cash equivalents	122,643		$ 122,643		139,281
Deferred offering expenses amortization	94	$ 95	188	$ 192
Deferred offering expenses	$ 900		$ 900		$ 1,078
Series II [Member] \| Minimum [Member]
Accounting Policies [Line Items]
Income tax years open to examination			3 years
Series II [Member] \| Maximum [Member]
Accounting Policies [Line Items]
Income tax years open to examination			5 years