Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Lessee Lease Description [Line Items]
Total rent expense	$ 0.4	$ 0.3	$ 1.0	$ 1.0
Lessee, Operating Lease, Existence of Option to Extend [true false]			true
Weighted average remaining operating lease term	3 years		3 years
Weighted average discount rate of operating lease	6.30%		6.30%
Operating lease liabilities, cash paid	$ 0.3		$ 1.0
Minimum
Lessee Lease Description [Line Items]
Remaining lease term	1 year		1 year
Maximum
Lessee Lease Description [Line Items]
Remaining lease term	5 years		5 years
Operating leases, options to extend leases term	5 years		5 years