Equity Incentive Plan - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of shares, Beginning balance	3,909,873
Number of shares, Stock options granted	2,871,400
Number of shares, Stock options exercised	(391,349)
Number of shares, Stock options cancelled	(727,100)
Number of shares, Ending balance	5,662,824	3,909,873
Shares available for grant, Exercisable	2,065,942
Weighted- average exercise price per share, Beginning balance	$ 10.78
Weighted- average exercise price per share, Stock options granted	25.54
Weighted- average exercise price per share, Stock options exercised	4.11
Weighted- average exercise price per share, Stock options cancelled	24.41
Weighted- average exercise price per share, Ending balance	16.98	$ 10.78
Weighted- average exercise price per share, Exercisable	$ 11.34
Weighted- average remaining contractual term	8 years 3 months 3 days	8 years 4 months 24 days
Weighted- average remaining contractual term, Exercisable	7 years 29 days
Aggregate intrinsic value	$ 10,186	$ 56,128
Aggregate intrinsic value, Exercisable	$ 8,120