Property and Equipment, net - Summary of Property and Equipment, Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 216,282	$ 175,382
Accumulated depreciation	(51,088)	(37,807)
Total property and equipment, net	165,194	137,575
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	2,798	1,757
Furniture, Fixtures and Other [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	10,926	4,371
Laboratory Equipment [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	35,543	30,123
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	163,441	86,735
Construction Work in Process [Member]
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 3,574	$ 52,396