Equity Incentive Plans and Stock-Based Compensation - Summary of the Activity Under the Stock Plan (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2021	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Shares Available for Grant, Beginning balance	29,375,026
Beginning Balance, Shares Recapitalization		38,002,437
Balance as of March 31, 2021		67,377,463
Shares Available for Grant, Granted	0
Shares Available for Grant, Exercised	(818,479)
Shares Available for Grant, Cancelled/Forfeited/Expired	(596,316)
Shares Available for Grant, Ending balance	65,962,668	29,375,026
Ending Vested and exercisable, Shares Available for Grant	39,327,557
Weighted-Average Exercise Price, Beginning balance	$ 9.37
Weighted-Average Exercise Price, Recapitalization		$ 5.28
Balance as of March 31, 2021		4.09
Weighted-Average Exercise Price, Exercised	3.12
Weighted-Average Exercise Price, Cancelled/Forfeited/Expired	4.79
Weighted-Average Exercise Price, Ending balance	4.09	$ 9.37
Weighted-Average Exercise Price, Vested and exercisable	$ 3.49
Weighted-Average Remaining Contractual Term (Years)	6 years 10 months 24 days	7 years 1 month 6 days
Weighted-Average Remaining Contractual Term (Years), Vested and Exercisable	5 years 8 months 12 days
Aggregate Intrinsic Value of Options Outstanding	$ 501,155	$ 403,498
Aggregate Intrinsic Value of Options Outstanding, Vested and Exercisable	$ 322,319