Stock-Based Compensation - Stock Option Activity (Details) - $ / shares |
9 Months Ended |
|---|---|
Sep. 30, 2021 | |
| Options | |
| Outstanding at beginning of period (in shares) | 3,740,604 |
| Granted (in shares) | 66,505 |
| Exercised (in shares) | (1,071,838) |
| Forfeited or expired (in shares) | (48,988) |
| Outstanding at the end of period (in shares) | 2,686,283 |
| Vested and exercisable (in shares) | 1,689,127 |
| Weighted Average Exercise Price | |
| Outstanding at the beginning of period (in dollars per share) | $ 20.72 |
| Granted (in dollars per share) | 95.68 |
| Exercised (in dollars per share) | 10.98 |
| Forfeited or expired (in dollars per share) | 39.03 |
| Outstanding at the end of period (in dollars per share) | 26.13 |
| Vested and exercisable (in dollars per share) | $ 17.80 |
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted average price of options that were either forfeited or expired. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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