Fair Value Measurements - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
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		$ 3,600,000	$ 5,000,000.0
Accrued interest receivable writeoff		0	0	$ 0
Total unrealized gains recorded in accumulated other comprehensive gain		1,100,000	1,400,000
Equity securities		6,100,000
Unrealized gain (loss) on securities		1,729,000	(5,528,000)	$ (21,888,000)
Decrease in contingent consideration	$ 17,500,000
Humabs
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Contingent consideration recognized		$ 34,100,000	$ 40,100,000
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Securities contractual term (in years)		2 years