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Share-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2018
Non-qualified stock options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of activity | The following table summarizes activity related to stock options for the three months ended March 31, 2018 and 2017:
| Options Outstanding |  | Options Exercisable
| Number of Options |  | Weighted Average Exercise Price Per Share |  | Weighted Average Remaining Contractual Life |  | Number of Options |  | Weighted Average Exercise Price Per Share
December 31, 2016 | 8,234,000 |  |  | $ | 19.00 |  |  | 8.29 |  |  | 2,058,500 |  |  | $ | 19.00 |
Granted | — |  |  | — |  |  | — |  |  | — |  |  | — |
Exercised | — |  |  | — |  |  | — |  |  | — |  |  | — |
Forfeited or expired | (195,000 | ) |  | — |  |  | — |  |  | — |  |  | — |
March 31, 2017 | 8,039,000 |  |  | $ | 19.00 |  |  | 8.05 |  |  | 2,009,750 |  |  | $ | 19.00 |
December 31, 2017 | 7,783,000 |  |  | $ | 19.00 |  |  | 7.29 |  |  | 3,891,500 |  |  | $ | 19.00 |
Granted | — |  |  | — |  |  | — |  |  | — |  |  | — |
Exercised | (732,000 | ) |  | 19.00 |  |  | — |  |  | (732,000 | ) |  | 19.00 |
Forfeited or expired | — |  |  | — |  |  | — |  |  | — |  |  | — |
March 31, 2018 | 7,051,000 |  |  | $ | 19.00 |  |  | 7.05 |  |  | 3,182,000 |  |  | $ | 19.00 |
Restricted stock units |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Schedule of activity related to restricted stock units | The following table summarizes activity related to the RSUs:
| Number of Shares |  | Weighted Average Fair Value
At December 31, 2016 | 1,573,441 |  |  | $ | 18.28 |
Granted | — |  |  | — |
Forfeited | (95,481 | ) |  | 18.38 |
Vested | — |  |  | — |
At March 31, 2017 | 1,477,960 |  |  | $ | 18.28 |
At December 31, 2017 | 853,047 |  |  | $ | 17.94 |
Granted | 1,044,690 |  |  | 20.64 |
Forfeited | (30,626 | ) |  | 18.52 |
Vested | — |  |  | — |
At March 31, 2018 | 1,867,111 |  |  | $ | 18.85 |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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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. + References No definition available. + Details
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