Other Assets - Summary of Other Current Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Prepaid Expense and Other Assets, Current [Abstract]
Collaboration and other receivables	$ 41,499	$ 104,117
Tax-related receivables and prepaids	13,807	15,604
Prepaid maintenance services	11,643	12,639
Prepaid clinical and pre-clinical expenses	6,432	7,976
Prepaid insurance	2,094	4,004
Prepaid commercial expenses	3,189	2,290
Interest receivable	2,994	1,656
Other	4,953	23,570
Total other current assets	$ 86,611	$ 171,856