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Consolidated Entity - Summary of Individual Investments Held by ISP Fund (Details) - Isp Fund Lp [Member] - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Preferred stocks - Privately held healthcare companies
Money market fund and cash	$ 56,589	$ 107,532
Total investments held by ISP Fund LP	115,566	255,658
Publicly Held Healthcare Companies
Common stock - Publicly traded healthcare companies
Common stock	56,278	86,028
Privately Held Healthcare Companies
Preferred stocks - Privately held healthcare companies
Warrants	0	8,507
United States | Publicly Held Healthcare Companies
Common stock - Publicly traded healthcare companies
Common stock	52,920	84,039
United States | Privately Held Healthcare Companies
Preferred stocks - Privately held healthcare companies
Preferred stock	2,699	53,591
United Kingdom | Publicly Held Healthcare Companies
Common stock - Publicly traded healthcare companies
Common stock	$ 3,358	$ 1,989

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