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Equity Compensation (Schedule of Equity Compensation Restricted Stock Activity) (Details) (Restricted Stock, USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Restricted Stock
       
Equity Compensation Arrangement by Share-based Payment Award [Abstract]        
Number of Restricted Shares Nonvested at beginning of period     698  
Number of Restricted Shares granted 10 0 10 0
Number of Restricted Shares vested     (4)  
Number of Restricted Shares forfeited     (2)  
Number of Restricted Shares Nonvested at end of period 702   702  
Weighted Average Grant Date Fair Value Nonvested at beginning of period     $ 21.04  
Weighted Average Grant Date Fair Value Shares granted     $ 25.26  
Weighted Average Grant Date Fair Value Shares vested     $ 24.85  
Weighted Average Grant Date Fair Value Shares forfeited     $ 23.12  
Weighted Average Grant Date Fair Value Nonvested at end of period $ 21.07   $ 21.07