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Shareholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2018
Stockholders' Equity Note [Abstract] |
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan | The Company recognized stock-based compensation expense in its Consolidated Financial Statements in the three and nine months ended September 30, 2018 and 2017, respectively, as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
Stock-based compensation expense | $ | 5,878 |  |  | $ | 7,088 |  |  | $ | 16,396 |  |  | $ | 19,527 |
Less: Deferred tax benefit | (1,311 | ) |  | (2,517 | ) |  | (3,556 | ) |  | (6,859 | )
Stock-based compensation expense, net of tax | $ | 4,567 |  |  | $ | 4,571 |  |  | $ | 12,840 |  |  | $ | 12,668 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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