Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]	Prepaid expenses and other current assets		Prepaid expenses and other current assets
Accrued interest receivable	$ 3,300,000		$ 3,600,000
Accrued interest receivable writeoff	0	$ 0
Total net unrealized gains (losses) recorded in accumulated other comprehensive loss	(400,000)		1,100,000
Equity securities	5,900,000
Unrealized gain (loss) on equity securities	(170,000)	$ 6,382,000
Humabs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration recognized	$ 33,200,000		$ 34,100,000
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities contractual term (in years)	2 years