Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Leases [Abstract]
Fixed operating lease cost	$ 530	$ 476
Short-term lease costs	0	42
Total lease expense	530	518
Right-of-use asset obtained in exchange for operating lease liabilities	0	1,343
Operating cash flows from operating leases	342	323
Sublease income	$ 49	$ 49
Weighted-average remaining lease term-operating leases (in years)	4 years 8 months 12 days
Weighted-average discount rate-operating leases	11.30%