Fair Value Measurement and Disclosures - Summary of Fair Value of Level III Investments (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net change in unrealized gain (loss)	$ 2,507,000	$ 2,317,000
Transfers into Level III	0
Transfers out of Level III	0	(94,000)
Level III
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning	215,718,000	73,377,000
Purchases	228,175,000	388,327,000
Sales	(89,694,000)	(107,223,000)
Net realized gain (loss)	(1,000)	1,000
Net change in unrealized gain (loss)	2,507,000	2,317,000
Transfers out of Level III		(94,000)
Balance, endning	356,705,000	356,705,000
Series I
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net change in unrealized gain (loss)	(1,217,000)	(1,122,000)
Transfers out of Level III		(27,000)
Series I | Level III
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning	51,476,000	21,331,000
Purchases	58,718,000	92,856,000
Sales	(21,971,000)	(26,031,000)
Net realized gain (loss)		(1,000)
Net change in unrealized gain (loss)	(1,217,000)	(1,122,000)
Transfers out of Level III		(27,000)
Balance, endning	87,006,000	87,006,000
Series II
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Net change in unrealized gain (loss)	3,724,000	3,439,000
Transfers out of Level III		(67,000)
Series II | Level III
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning	164,242,000	52,046,000
Purchases	169,457,000	295,471,000
Sales	(67,723,000)	(81,192,000)
Net realized gain (loss)	(1,000)	2,000
Net change in unrealized gain (loss)	3,724,000	3,439,000
Transfers out of Level III		(67,000)
Balance, endning	$ 269,699,000	$ 269,699,000