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Stockholders' Equity - Summary of Restricted Stock Unit Activity (Details) - PSUs and RSUs
6 Months Ended
Jun. 30, 2021
$ / shares
shares
Shares Outstanding  
Number of RSUs and PSUs Outstanding, Beginning (shares) | shares 4,816,000
Number of RSUs and PSUs, Granted (shares) | shares 2,106,680
Number of RSUs and PSUs, Released (shares) | shares (1,949,524)
Number of RSUs and PSUs, Canceled (shares) | shares (295,779)
Number of RSUs and PSUs Outstanding, Ending (shares) | shares 4,677,377
Weighted Average Grant Date Fair Value  
Weighted Average Grant Date Fair Value, Beginning balance (in dollars per share) | $ / shares $ 37.82
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares 86.84
Weighted Average Grant Date Fair Value, Released (in dollars per share) | $ / shares 32.28
Weighted Average Grant Date Fair Value, Canceled (in dollars per share) | $ / shares 42.34
Weighted Average Grant Date Fair Value, Ending balance (in dollars per share) | $ / shares $ 61.92