Stockholders' Equity - Schedule of Stock Option Activity (Details) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($) $ / shares shares
Stockholders' Equity Note [Abstract]
Outstanding at the beginning of the period (in shares) | shares	53,078	[1]
Cancelled and forfeited (in shares) | shares	(56)
Exercised (in shares) | shares	(870)
Outstanding at the end of the period (in shares) | shares	52,152
Vested and expected to vest at the end of the period (in shares) | shares	43,334	[2]
Vested and exercisable at the end of the period (in shares) | shares	31,271
Outstanding at the beginning of the period (in dollars per share) | $ / shares	$ 7.74	[1]
Cancelled and forfeited (in dollars per share) | $ / shares	2.38
Exercised (in dollars per share) | $ / shares	1.54
Outstanding at the end of the period (in dollars per share) | $ / shares	7.85
Vested and expected to vest (in dollars per share) | $ / shares	4.76	[2]
Vested and exercisable (in dollars per share) | $ / shares	$ 1.58
Weighted Average Remaining Contractual Term (Years)	6 years 6 months 25 days
Weighted Average Remaining Contractual Term (Years), vested and expected to vest	5 years 11 months 4 days	[2]
Weighted Average Remaining Contractual Term (Years), vested and exercisable	4 years 10 months 13 days
Intrinsic value, balance at end of period | $	$ 677,907
Intrinsic value, vested and expected to vest at end of period | $	677,907	[2]
Intrinsic value, vested and exercisable at end of period | $	$ 575,618

[1] This includes 14.7 million options granted in December 2021 pursuant to the EPA Program.

[2] This includes 5.9 million options granted pursuant to the EPA Program that are currently expected to vest. None of the options granted pursuant to the EPA Program were vested and exercisable as of March 31, 2022.