Equity Incentive Plan - Summary of Total Stock-based Compensation Including Both Stock Option Awards and Restricted Stock (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share based compensation expenses	$ 2,180	$ 1,656	$ 4,160	$ 2,828
General and Administrative [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share based compensation expenses	1,476	1,029	2,738	1,768
Research and Development [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share based compensation expenses	$ 704	$ 627	$ 1,422	$ 1,060