Stock-Based Compensation - Summary of Stock Option Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Number of Options
Outstanding, beginning balance (in shares)	8,019	10,784
Assumed through acquisition (in shares)		2,565
Granted (in shares)	641	1,740
Exercised (in shares)	(1,977)	(6,608)
Cancelled (in shares)	(426)	(462)
Outstanding, ending balance (in shares)	6,257	8,019	10,784
Options vested and exercisable (in shares)	4,362
Options vested and expected to vest (in dollars per share)	6,257
Weighted Average Exercise Price
Outstanding, beginning balance (in dollars per share)	$ 10.35	$ 7.38
Assumed through acquisition (in dollars per share)		10.23
Granted (in dollars per share)	47.06	17.48
Exercised (in dollars per share)	8.88	7.40
Cancelled (in dollars per share)	24.70	9.36
Outstanding, ending balance (in dollars per share)	13.60	$ 10.35	$ 7.38
Options vested and exercisable (in dollars per share)	8.38
Options vested and expected to vest (in dollars per share)	$ 13.60
Weighted Average Remaining Contractual Life
Weighted-average remaining contractual life, options outstanding	6 years 2 months 8 days	6 years 10 months 13 days	6 years 6 months 7 days
Weighted-average remaining contractual life, options vested and exercisable	5 years 2 months 4 days
Weighted-average remaining contractual life, options vested and expected to vest	6 years 2 months 8 days
Aggregate intrinsic value, options outstanding	$ 140,326	$ 473,371	$ 71,745
Aggregate intrinsic value, options vested and exercisable	114,465
Aggregate intrinsic value, options vested and expected to vest	$ 140,326