Stockholders' Equity - Summary of Stock Option Activity under the Company's Equity-Based Plans (Details) |
3 Months Ended |
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Mar. 31, 2017
shares
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| Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] | |
| Number of Shares, Beginning Balance | 2,815,224 |
| Number of Shares, Granted | 0 |
| Number of Shares, Exercised | (349,264) |
| Number of Shares, Forfeited | (20,174) |
| Number of Shares, Expired | 0 |
| Number of Shares, Ending Balance | 2,445,786 |
| Number of Shares, Exercisable, Ending Balance | 1,872,720 |
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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://www.xbrl.org/2003/role/presentationRef
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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://www.xbrl.org/2003/role/presentationRef
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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 Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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