Commitments and Contingencies - Schedule of Future Minimum Lease Payments under Non-cancellable Operating Leases, Reconciliation of Undiscounted Cash Flows to the Operating Lease Liability (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Operating Lease Liabilities, Payments Due [Abstract]
2022 (Excluding the three months ended March 31, 2022)	$ 1,473
2023	1,991
Total future minimum lease payments, undiscounted	3,464
Less imputed interest	(214)
Operating lease liabilities	3,250
Operating lease liabilities reported as of March 31, 2022:
Operating lease liabilities - current	1,795	$ 1,755
Operating lease liabilities - non-current	1,455	$ 1,918
Total	$ 3,250