Stock-Based Compensation (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
May. 13, 2015 |
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| Stock-Based Compensation | |||||
| Increase number of shares reserved for delivery | 2,700,000 | ||||
| Maximum number of stock options and restricted stock available for future issuance | 3,022,264 | 3,022,264 | |||
| Summary of employee stock-based compensation expense | |||||
| Employee stock-based compensation expense | $ 3,330 | $ 3,199 | $ 6,749 | $ 5,767 | |
| Tax effect on employee stock-based compensation expense | (1,332) | (1,280) | (2,700) | (2,307) | |
| Net effect on income | $ 1,998 | $ 1,919 | $ 4,049 | $ 3,460 | |
| X | ||||||||||
- Definition Represents the increase (decrease) in maximum number of shares available for grant. No definition available.
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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of expense, net of income tax, recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. No definition available.
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- References No definition available.
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- References No definition available.
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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 The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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