Convertible Preferred Stock, Tranche Liability and Warrant Liability - Summary of Assumptions Used in Estimating the Fair Value of Preferred Stock Tranche Liability (Detail)		12 Months Ended
	Jun. 17, 2021	Dec. 31, 2020
Convertible Preferred Stock Tranche Liability and Warrant Liability [Abstract]
Risk-free interest rate	0.07%	0.12%
Expected time to Milestone Closing (in years)	9 months 18 days	1 year 3 months 18 days
Probability of achievement of Milestone Closing	100.00%	65.00%