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Share-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of share-based compensation expenses | Total share-based compensation expenses were comprised as follows (in thousands):
| Three months ended September 30, |  | Nine months ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Option plan | $ | 5,766 |  |  | $ | 6,210 |  |  | $ | 12,837 |  |  | $ | 17,772 |
Other share-based awards | (3,919 | ) |  | (3,139 | ) |  | 18,191 |  |  | 15,680 |
Total share-based compensation before tax | 1,847 |  |  | 3,071 |  |  | 31,028 |  |  | 33,452 |
Tax benefit | 686 |  |  | 1,146 |  |  | 11,524 |  |  | 12,478 |
Total share-based compensation expense included in net income | $ | 1,161 |  |  | $ | 1,925 |  |  | $ | 19,504 |  |  | $ | 20,974 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + 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 (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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