Stock-Based Compensation - Option Activity (Details) - Employee, excluding CEO - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Shares
Beginning balance (in shares)	11,985
Granted (in shares)	1,437
Exercised (in shares)	(1,911)
Forfeited and expired (in shares)	(1,110)
Ending balance (in shares)	10,401	11,985
Exercisable at the end of the period (in shares)	8,974
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 2.57
Granted (in dollars per share)	12.12
Exercised (in dollars per share)	1.07
Forfeited and expired (in dollars per share)	4.14
Ending balance (in dollars per share)	4.01	$ 2.57
Exercisable at the end of the period (in dollars per share)	$ 2.90
Weighted Average Contractual Period (in Years)
Outstanding balance (in years)	7 years 8 months 23 days	8 years 6 months
Exercisable at the end of the period (in years)	7 years 5 months 26 days
Aggregate Intrinsic Value
Outstanding balance	$ 37,868	$ 131,770
Exercisable at the end of the period	$ 37,303
Previously Reported
Shares
Beginning balance (in shares)	26,459
Ending balance (in shares)		26,459
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 1.16
Ending balance (in dollars per share)		$ 1.16
Revision of Prior Period, Adjustment
Shares
Beginning balance (in shares)	14,474
Ending balance (in shares)		14,474
Weighted Average Exercise Price
Beginning balance (in dollars per share)	$ 1.41
Ending balance (in dollars per share)		$ 1.41