Leases - 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
Lessee Lease Description [Line Items]
Total operating lease cost		$ 282	$ 681	$ 638	$ 1,552
Operating Costs
Lessee Lease Description [Line Items]
Total operating lease cost	[1]	313	713	568	1,615
Sublease income			(121)		(242)
General and Administrative
Lessee Lease Description [Line Items]
Total operating lease cost	[1]	193	151	477	303
Sublease income		$ (224)	$ (62)	$ (407)	$ (124)

[1] Short-term lease costs were approximately $0.2 million and $0.3 million during the three and six months ended June 30, 2022, respectively, and $0.1 million and $0.2 million during the three and six months ended June 30, 2021, respectively. Operating cash flows used for operating leases approximates lease expense.