Fair Value Measurement and Disclosures - Summary of Fair Value of Level III Investments (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance as of June 30, 2024	$ 6,248,000
Purchases	20,436,000	$ 6,234,000
Sales	(477,000)
Net realized gain (loss)	4,000
Net change in unrealized gain (loss)	76,000	14,000	$ 90,000
Transfers out of Level III	0		0
Transfers into Level III	0		0
Balance as of September 30, 2024	26,287,000	6,248,000	26,287,000
Series I
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Purchases	4,282,000
Sales	(77,000)
Net realized gain (loss)	1,000
Net change in unrealized gain (loss)	12,000		12,000
Balance as of September 30, 2024	4,218,000		4,218,000
Series II
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance as of June 30, 2024	6,248,000
Purchases	16,154,000	6,234,000
Sales	(400,000)
Net realized gain (loss)	3,000
Net change in unrealized gain (loss)	64,000	14,000	78,000
Balance as of September 30, 2024	$ 22,069,000	$ 6,248,000	$ 22,069,000