Leases - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease expiry year	2031
Operating lease cost	$ 2.2	$ 1.4	$ 1.5
Cash payments related to operating lease liabilities	$ 2.1	$ 1.5
Operating lease, weighted average remaining lease term	8 years 4 months 24 days
Operating lease, weighted average discount rate, percent	5.90%
Operating lease liability payments not yet commenced	$ 0.1
Operating lease, weighted average lease not yet commenced, term	4 years