Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 194,078	$ 175,382
Accumulated depreciation	(27,968)	(37,807)
Total property and equipment, net	166,110	137,575
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	3,479	1,757
Furniture, Fixtures and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	7,850	4,371
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	36,231	30,123
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	141,914	86,735
Construction Work in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 4,604	$ 52,396