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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended
--- | --- | ---
Dec. 31, 2020 | Mar. 31, 2022 | Mar. 31, 2021
Class of Stock [Line Items] |  |  |
Stock-based compensation expense |  | $ 194,923 | $ 229,474
Restricted stock awards |  |  |
Class of Stock [Line Items] |  |  |
Contractual term of the RSUs |  | 4 years |
Employee Stock Purchase Plan | 2020 Employee Stock Purchase Plan |  |  |
Class of Stock [Line Items] |  |  |
Maximum shares issuable (in shares) | 89,785,394,000 |  |
Stock-based compensation expense |  | $ 5,400 | $ 32,300
Employee Stock Purchase Plan | Common class A | 2020 Employee Stock Purchase Plan |  |  |
Class of Stock [Line Items] |  |  |
Shares authorized (in shares) | 4,000,000 |  |
Annual increase in number of shares authorized (percent) | 1.00% |  |
ESPP shares purchased during period (in shares) |  | 0 | 0

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