Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 205,378	$ 197,466
Accumulated Depreciation	(53,433)	(33,832)
Total property and equipment, net	151,945	163,634
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,739	3,618
Furniture, Fixtures, and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	8,109	8,109
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	41,411	37,897
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	143,260	141,680
Construction Work in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 8,859	$ 6,162