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Share-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of stock options activity | The following table summarizes activity related to stock options for the three months ended March 31, 2019 and 2018:
| 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
At 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 | — |  |  | — |  |  | — |  |  | — |  |  | — |
At March 31, 2018 | 7,051,000 |  |  | 19.00 |  |  | 7.05 |  |  | 3,182,000 |  |  | 19.00 |
At December 31, 2018 | 3,486,150 |  |  | 19.00 |  |  | 6.30 |  |  | 1,660,400 |  |  | 19.00 |
Granted | 156,129 |  |  | 13.60 |  |  | 4.87 |  |  | 156,129 |  |  | 13.60 |
Exercised | (208,700 | ) |  | 19.00 |  |  | — |  |  | (208,700 | ) |  | 19.00 |
Forfeited or expired | (40,000 | ) |  | — |  |  | — |  |  | — |  |  | — |
At March 31, 2019 | 3,393,579 |  |  | $ | 18.75 |  |  | 5.99 |  |  | 1,607,829 |  |  | $ | 18.48 |
Schedule of activity related to restricted stock units | The following table summarizes activity related to the RSUs (including the Assumed Awards):
| Number of Shares |  | Weighted Average Fair Value
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 |
At December 31, 2018 | 1,378,922 |  |  | 20.03 |
Granted | 3,280,742 |  |  | 25.77 |
Forfeited | (156,414 | ) |  | 20.70 |
Vested | (562,537 | ) |  | 22.94 |
At March 31, 2019 | 3,940,713 |  |  | $ | 24.37 |

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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=109197908&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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