Investments and Equity Method Investments - Schedule of Investments and Equity Method Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Net Investment Income [Line Items]
Total	$ 32,173	$ 48,704
SAFEs
Net Investment Income [Line Items]
SAFEs	16,689	16,689
Non-marketable equity securities
Net Investment Income [Line Items]
Equity securities	12,374	14,218
Total	29,063
Marketable equity securities
Net Investment Income [Line Items]
Equity securities	2,899	17,559
Synlogic warrants
Net Investment Income [Line Items]
Equity securities	$ 211	$ 238