Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Units Outstanding, Beginning Balance	8,590,411
Number of Units, Granted	4,347,646
Number of Units, Exercised	(65,862)
Number of Units, Forfeited	(2,200,917)
Number of Units, Expired	(422,657)
Number of Units Outstanding, Ending Balance	10,248,621	8,590,411
Number of Units, Exercisable	2,804,018
Number of Units, Nonvested	7,444,603
Number of Units Outstanding, Weighted Average Strike Price per Unit, Beginning Balance	$ 5.48
Number of Units, Granted, Weighted Average Strike Price per Unit	1.08
Number of Units, Exercised, Weighted Average Strike Price per Unit	1.50
Number of Units, Forfeited, Weighted Average Exercise Price per Unit	5.30
Number of Units, Expired, Weighted Average Exercise Price per Unit	4.51
Number of Units Outstanding, Weighted Average Strike Price per Unit, Ending Balance	3.72	$ 5.48
Number of Units, Exercisable, Weighted Average Strike Price per Unit	5.33
Number of Units, Nonvested, Weighted Average Strike Price per Unit	$ 3.11
Number of Units Outstanding, Weighted Average Remaining Contractual Term (in years)	9 years	8 years 9 months 18 days
Number of Units, Exercisable, Weighted Average Remaining Contractual Term (in years)	8 years 1 month 6 days
Number of Units, Nonvested, Weighted Average Remaining Contractual Term (in years)	9 years 4 months 24 days
Number of Units Outstanding, Aggregate Intrinsic Value	$ 0	$ 6,196
Number of Units, Exercisable, Aggregate Intrinsic Value	0
Number of Units, Nonvested, Aggregate Intrinsic Value	$ 0