Leases - Other lease information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 2,777	$ 1,885	$ 1,990
Operating cash flows from finance leases	14	18	22
Financing cash flows from finance leases	$ 65	$ 76	$ 55
Weighted average remaining lease term
Operating leases	2 years 4 months 24 days	3 years
Finance leases	2 years	3 years
Weighted average discount rate
Operating leases	4.20%	5.55%
Finance leases	7.75%	7.75%