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	Jun. 30, 2022	Dec. 31, 2021
Operating Lease Liabilities, Payments Due [Abstract]
2022 (Excluding the six months ended June 30, 2022)	$ 985
2023	1,992
Total future minimum lease payments, undiscounted	2,977
Less imputed interest	(159)
Operating lease liabilities	2,818
Operating lease liabilities reported as of June 30, 2022:
Operating lease liabilities - current	1,835	$ 1,755
Operating lease liabilities - non-current	983	$ 1,918
Total	$ 2,818