Stock-Based Compensation - Stock Activity and the Total Number of Shares Available for Grant (Details) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Options granted | 445,353 | 14,304,160 |
| 2016 Plan | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Beginning Balance | 499,133 | 2,822,165 |
| Authorized | 11,063,028 | 9,273,082 |
| Options canceled and forfeited | 2,632,413 | |
| Repurchases | 75,633 | |
| Options granted | 14,304,160 | |
| Shares Repurchased | 138,291 | |
| Termination of 2016 Plan reserve | 1,800,127 | |
| Ending Balance | 0 | 499,133 |
| Restricted Stock Units (RSUs) [Member] | 2016 Plan | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Number of Options, Granted | 11,048,584 | |
| Number of Options, Forfeited | 1,148,259 | |
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Options Canceled And Forfeited No definition available.
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Shares Authorized No definition available.
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- Definition Share Based Compensation Arrangement By Share Based Payment Award Shares Repurchases No definition available.
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- Definition Termination of 2016 Plan reserve No definition available.
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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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- Definition Gross number of share options (or share units) granted during the period. No definition available.
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- Definition An entity expecting to repurchase shares in the following period, generally discloses an estimate of the amount or range of shares to be repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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