Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Fixed operating lease cost	$ 524	$ 541	$ 1,054	$ 1,017
Short-term lease costs	0	0	0	42
Total lease expense	524	541	1,054	1,059
Right-of-use asset obtained in exchange for operating lease liabilities	0	0	0	1,343
Operating cash flows from operating leases	338	280	680	603
Sublease income	$ 49	$ 49	$ 98	$ 98
Weighted-average remaining lease term-operating leases (in years)	4 years 6 months		4 years 6 months
Weighted-average discount rate-operating leases	11.30%		11.30%