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Share-Based Compensation (Summary of Share-Based Compensation Expense) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Options $ 457 $ 203 $ 1,198 $ 601
Restricted stock 672 592 1,974 1,475
Total $ 1,129 $ 795 $ 3,172 $ 2,076