Leases - Components of Lease Expense (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Lessee Lease Description [Line Items]
Total operating lease cost		$ 356	$ 871
Operating Costs
Lessee Lease Description [Line Items]
Total operating lease cost	[1]	255	902
Sublease income			(121)
General and Administrative
Lessee Lease Description [Line Items]
Total operating lease cost	[1]	284	152
Sublease income		$ (183)	$ (62)

[1] Short-term lease costs were approximately $0.1 million and $0.3 million during the three months ended March 31, 2022 and 2021, respectively. Operating cash flows used for operating leases approximates lease expense.