Stock-Based Compensation - Summary of Restricted Stock Activity (Parenthetical) (Details) shares in Thousands	12 Months Ended
Dec. 31, 2020 shares
Restricted Stock Units ("RSUs") Performance-Vesting Founders Awards
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units vested but not yet settled	15,691

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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