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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Mar. 31, 2015
Jun. 30, 2016
Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based compensation $ 807 $ 1,276   $ 555 $ 1,896
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 2,170     $ 2,170  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition       3 years  
Excess income tax deficiency (benefit) from share-based compensation       $ (124) $ 310
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number 0     0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period     7,500    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross       0 0
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price     $ 9.08    
The Omnibus Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized       370,000  
The Omnibus Plan [Member] | Restricted Stock And Performance Shares Combined [Member] | Vesting Period 1 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       4 years  
The Omnibus Plan [Member] | Restricted Stock And Performance Shares Combined [Member] | Vesting Period 2 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period       3 years