Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 83,774	$ 131,474
Less: Accumulated depreciation	(53,843)	(54,166)
Property and equipment, net	29,931	77,308
Laboratory Equipment
Property Plant And Equipment [Line Items]
Property and equipment, at cost	40,575	52,957
Leasehold Improvements
Property Plant And Equipment [Line Items]
Property and equipment, at cost	39,061	33,344
Construction In Progress
Property Plant And Equipment [Line Items]
Property and equipment, at cost	0	40,337
Computer Equipment, Software and Other
Property Plant And Equipment [Line Items]
Property and equipment, at cost	$ 4,138	$ 4,836