Stock-Based Compensation - Schedule of Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Shares Available for Grant
Balance beginning of period (in shares)	3,745,216,000
Awards authorized (in shares)	1,063,334,000
Options cancelled (in shares)	702,000
Balance end of period (in shares)	4,809,252,000	3,745,216,000
Number of Shares
Balance beginning of period (in shares)	1,524,985,000
Options exercised (in shares)	(54,913,000)
Options cancelled (in shares)	(702,000)
Balance end of period (in shares)	1,469,370,000	1,524,985,000
Vested and exercisable shares (in shares)	1,325,201,000
Vested and expected to vest shares (in shares)	1,469,370,000
Weighted- Average Exercise Price Per Share
Beginning balance of period (USD per share)	$ 6,010.00
Options exercised (USD per share)	7,100
Options cancelled (USD per share)	13,190
Ending balance of period (USD per share)	5,960	$ 6,010.00
Vested and exercisable shares (USD per share)	5,370
Vested and expected to vest shares (USD per share)	$ 5,960
Weighted- Average Remaining Term
Balance (USD per share)	5 years 4 months 24 days	5 years 9 months 3 days
Vested and exercisable, March 31, 2022	5 years 3 months
Vested and expected to vest, March 31, 2022	5 years 4 months 24 days
Aggregate Intrinsic Value
Balance	$ 295,930	$ 262,793
Vested and exercisable, March 31, 2022	267,682
Vested and expected to vest, March 31, 2022	$ 295,930