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The period of time in which contributors to an investment fund have waived the right of redemption, as defined in the partnership agreement.

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Percentage of economic interest held in Partnership.

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Consolidated Entity - ISP Fund LP (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Apr. 30, 2025	Dec. 31, 2024	Dec. 31, 2021	Dec. 31, 2020
CONSOLIDATED ENTITIES
Total assets	$ 1,254,390			$ 1,301,060
ISP Fund LP
CONSOLIDATED ENTITIES
Distribution from partnership			$ 28,000
Capital contribution					$ 300,000	$ 300,000
Economic interest of the partnership (in percent)	100.00%
Total liabilities	$ 200			200
Net investment-related income (expense) earned (incurred)	800	$ (200)
Investment income, interest	1,200
Unrealized loss on other equity investments	$ (83,700)	$ (26,200)
Lock-up period	36 months
Realized gain on equity investments	$ 2,500
Total assets	$ 174,800			$ 255,700