Description of the Business - Additional Information (Detail) - USD ($) $ in Thousands	54 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Accumulated deficit	$ (860,630)	$ (811,534)
Funds raised through Series A and Series B Convertible Preferred Stock, convertible note financings and completed IPO	$ 942,000