Stock-Based Compensation - Summary of Stock Option Activity (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2021
Number of Shares
Beginning balance (in shares)	1,916,051
Granted (in shares)	232,850
Forfeited (in shares)	(99,743)
Ending balance (in shares)	2,049,158
Number of shares Options, Exercisable (in shares)	1,029,146
Number of shares Options, Vested and expected to vest (in shares)	1,798,855
Weighted Average Exercise Price
Beginning balance (in usd per share)	$ 10.01
Granted (in usd per share)	1.85
Forfeited (in usd per share)	23.52
Ending balance (in usd per share)	8.43
Weighted average exercise price, Exercisable (in usd per share)	10.44
Weighted average exercise price, Vested and expected to vest (in usd per share)	$ 8.84
Weighted average contractual term outstanding (in years)	7 years 10 months 24 days	7 years 9 months 18 days
Weighted average contractual term outstanding, Exercisable (in years)	6 years 9 months 18 days
Weighted average contractual term outstanding, Vested and expected to vest (in years)	7 years 8 months 12 days
Aggregate intrinsic value, Beginning balance	$ 0
Aggregate intrinsic value, Ending balance	11
Aggregate intrinsic value, exercisable	0
Aggregate intrinsic value, vested and expected to vest	$ 8