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v3.21.1

Common Stock - Additional Information (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 01, 2020 | Mar. 31, 2019 | Mar. 31, 2021 | Mar. 31, 2020 | Jan. 01, 2021 | Mar. 27, 2019
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |
Withholding tax adjustment |  |  | $ 7,652 | $ 6,762 |  |
2019 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |
Percentage of earnings for purchase of common stock |  |  |  |  |  | 15.00%
Offering periods |  | 12 months |  |  |  |
Common stock reserved for issuance (in shares) | 3,025,957 |  |  |  | 3,237,371 | 6,000,000
Increase in number of shares reserved for future issuance (in shares) | 7,000,000 |  |  |  |  |
Percentage of common stock outstanding | 1.00% |  |  |  |  |
Performance based restricted stock units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |
Granted (in shares) |  |  | 150,000 |  |  |
Restricted stock units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |
Granted (in shares) |  |  | 8,195,000 |  |  |
Vested in period, fair value |  |  | $ 307,500 | $ 177,500 |  |
Shares withheld related to net share settlement (in shares) |  |  | 129,855 |  |  |
Withholding tax adjustment |  |  | $ 7,700 |  |  |
Aggregate unrecognized compensation cost |  |  | $ 1,100,000 |  |  |
Aggregate grant-date fair value, weighted average period |  |  | 2 years 1 month 6 days |  |  |
Employee Stock | 2019 Employee Stock Purchase Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |  |
Number of shares repurchased under ESPP (in shares) |  |  | 1,296,206 |  |  |

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