Leases - Summary of Components of Operating Lease Expense (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lessee Lease Description [Line Items]
Total operating lease expense	$ 1,769	$ 1,373
Research and Development Expense [Member]
Lessee Lease Description [Line Items]
Fixed operating lease expense	869	808
Variable operating lease expense	76	89
General and Administrative Expense [Member]
Lessee Lease Description [Line Items]
Fixed operating lease expense	681	418
Variable operating lease expense	$ 143	$ 58