Property and Equipment - Components of Property and Equipment (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment	$ 36,844	$ 22,519
Less accumulated depreciation	(14,061)	(10,334)
Property and equipment, net	22,783	12,185
Computer hardware
Property, Plant and Equipment [Line Items]
Property and equipment	3,554	2,691
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property and equipment	1,558	1,559
Office equipment
Property, Plant and Equipment [Line Items]
Property and equipment	1,045	971
Laboratory equipment
Property, Plant and Equipment [Line Items]
Property and equipment	8,326	7,280
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment	9,104	9,054
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment	$ 13,257	$ 964