Equity Plans and Stock-based Compensation - Outstanding Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at beginning of period (in shares)		18,101,584
Granted (in shares)		705,512
Exercised (in shares)		(667,724)
Cancelled/forfeited/expired (in shares)		(645,344)
Balance at end of period (in shares)		17,494,028	18,101,584
Options exercisable, Number of options (in shares)		13,147,613
Stock Options Weighted Average Exercise Price
Balance at beginning of period (in dollars per share)		$ 4.08
Granted (in dollars per share)		7.84
Exercised (in dollars per share)		2.74
Cancelled/forfeited/expired (in dollars per share)		6.36
Balance at end of period (in dollars per share)		4.20	$ 4.08
Options exercisable, Weighted average exercise price per share (in dollars per share)		$ 3.56
Stock Option Activity, Additional Disclosures
Options outstanding, Weighted average remaining contractual term		5 years 1 month 6 days	5 years 6 months
Options exercisable, Weighted average remaining contractual term		4 years
Options outstanding, Aggregate intrinsic value		$ 60,108	$ 87,425
Options exercisable, Aggregate intrinsic value		$ 52,123
CEO Time-Based Awards at $10 to $25
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at beginning of period (in shares)		2,677,500
Balance at end of period (in shares)	2,677,500		2,677,500
Milestone Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at beginning of period (in shares)		669,375
Balance at end of period (in shares)	669,375		669,375
Equity Awards
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Balance at end of period (in shares)		1,004,064
Stock Options Weighted Average Exercise Price
Options exercisable, Weighted average exercise price per share (in dollars per share)		$ 19.61