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Share-Based Compensation - Summary of Activity of Option Plans (Details)
3 Months Ended
Mar. 31, 2022
$ / shares
shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Outstanding Option Shares, Beginning Balance | shares 9,920,314
Option, Granted | shares 2,938,074
Option, Exercised | shares (233,001)
Option, Forfeited/canceled | shares (739,815)
Outstanding Option Shares, Ending Balance | shares 11,885,572
Weighted-Average Exercise Price Outstanding at Beginning Balance | $ / shares $ 9.28
Weighted-Average Exercise Price, Granted | $ / shares 3.98
Weighted-Average Exercise Price, Exercised | $ / shares 1.46
Weighted-Average Exercise Price, Forfeited/canceled | $ / shares 10.00
Weighted-Average Exercise Price Outstanding at Ending Balance | $ / shares $ 8.08