Income Taxes - Summary of Gross Unrecognized Tax Benefits (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 7,205	$ 6,386
Increases related to prior year tax positions	9
Decreases related to prior year tax positions		58
Increases related to tax positions	783	877
Balance at end of period	$ 7,997	$ 7,205