Stock-Based Compensation Plans - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares) | shares	7,113,029
Granted (in shares) | shares	2,460,515
Exercised (in shares) | shares	(387,000)
Forfeited and canceled (in shares) | shares	(823,828)
Ending balance (in shares) | shares	8,362,716
Exercisable (in shares) | shares	1,370,239
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Beginning balance (in dollars per share) | $ / shares	$ 11.91
Granted (in dollars per share) | $ / shares	20.89
Exercised (in dollars per share) | $ / shares	11.56
Forfeited and canceled (in dollars per share) | $ / shares	11.99
Ending balance (in dollars per share) | $ / shares	14.56
Exercisable (in dollars per share) | $ / shares	$ 12.07
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted-average remaining contractual life, outstanding, end of period (in years)	8 years 4 months 17 days
Weighted-average remaining contractual life, exercisable, end of period (in years)	7 years 8 months 23 days
Outstanding intrinsic value, end of period | $	$ 87.1
Exercisable intrinsic value, end of period | $	$ 17.7