Income Taxes - Schedule of Reconciliation of Beginning and Ending Amounts of Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance, beginning of year	$ 3,063	$ 3,063	$ 672
Increases related to prior year tax positions	0	0	0
Increases related to current year tax positions	0	0	2,391
Balance, end of year	$ 3,063	$ 3,063	$ 3,063