Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 206,365	$ 205,378
Accumulated Depreciation	(72,272)	(53,433)
Total property and equipment, net	134,093	151,945
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,833	3,739
Furniture, Fixtures, and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	8,554	8,109
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	42,008	41,411
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	145,852	143,260
Construction Work in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 6,118	$ 8,859