Share-Based Compensation and Cash-Based Incentive Compensation - Summary of Incentive Compensation Expense under Share-Based Payment Arrangements and Related Tax Benefit (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2018 |
Mar. 31, 2017 |
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| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Share-based compensation | $ 1,219 | $ 1,928 |
| Tax benefit computed at the statutory rate | 256 | 675 |
| Restricted Stock Units (RSUs) | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Share-based compensation | 1,149 | 1,858 |
| Restricted Shares | ||
| Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | ||
| Share-based compensation | $ 70 | $ 70 |
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- Definition The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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. No definition available.
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- Definition Share-based compensation paid in shares and cash. No definition available.
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