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Stock Incentive Plans - Summary of Stock Option Activity Under Stock Incentive Plan (Details) - Stock Options
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
$ / shares
shares
Number of Options    
Balance at the beginning of the period (in shares) | shares 44,185,488  
Granted (in shares) | shares 3,013,518  
Exercised (in shares) | shares (2,918,489)  
Canceled and forfeited (in shares) | shares (2,755,876)  
Balance at the end of the period (in shares) | shares 41,524,641 44,185,488
Weighted-Average Exercise Price per Share    
Balance at the beginning of the period (in dollars per share) | $ / shares $ 13.31  
Granted (in dollars per share) | $ / shares 10.39  
Exercised (in dollars per share) | $ / shares 1.19  
Canceled and forfeited (in dollars per share) | $ / shares 6.27  
Balance at the end of the period (in dollars per share) | $ / shares $ 14.41 $ 13.31
Option Activity, Additional Disclosures    
Options outstanding, Weighted Average Remaining Contractual Life (Years) 7 years 10 months 13 days 8 years 5 months 15 days
Options outstanding, Aggregate Intrinsic Value (in USD) | $ $ 79,475 $ 279,242
Options Vested as of June 30, 2022, Number of Options (in shares) | shares 10,381,579  
Options Vested as of June 30, 2022, Exercise Price per Share (in dollars per share) | $ / shares $ 4.12  
Options Vested, Weighted Average Remaining Contractual Life (Years) 5 years 3 months 14 days  
Options Vested, as of June 30, 2022, Aggregate Intrinsic Value (in USD) | $ $ 59,976