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Stock-Based Compensation - Summary of Nonvested Restricted Stock Unit Awards (Details) - Restricted Stock Units (RSUs)
9 Months Ended
Sep. 30, 2022
$ / shares
shares
RSUs Outstanding  
Unvested and Outstanding, Beginning Balance (in shares) | shares 5,949,798
Granted (in shares) | shares 10,355,782
Vested (in shares) | shares (2,019,222)
Cancelled (in shares) | shares (2,086,309)
Unvested and Outstanding, Ending Balance (in shares) | shares 12,200,049
Vested and Outstanding (in shares) | shares 115,150
Weighted-Average Grant Date Fair Value per Share  
Unvested and Outstanding, Beginning Balance (in dollars per share) | $ / shares $ 46.54
Granted (in dollars per share) | $ / shares 8.79
Vested (in dollars per share) | $ / shares 39.01
Cancelled (in dollars per share) | $ / shares 35.33
Unvested and Outstanding, Ending Balance (in dollars per share) | $ / shares 17.66
Vested and Outstanding (in dollars per share) | $ / shares $ 28.28