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Share-Based Compensation (Summary of Grant Date Fair Value of Awards) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |  |  |  |
Options | $ 633 | $ 1,279 | $ 3,507 | $ 2,059
Restricted stock | 1,582 | 1,043 | 4,182 | 2,942
Total | $ 2,215 | $ 2,322 | $ 7,689 | $ 5,001

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