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Share-Based Compensation (Summary Of Restricted Stock Activity) (Details) - $ / shares
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Restricted Stock [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Beginning balance 579,000 387,000
Beginning balance, Weighted Average Grant Date Fair Value $ 17.20 $ 14.37
Granted 30,000 226,000
Granted, Weighted Average Grant Date Fair Value $ 12.47 $ 21.39
Vested (26,000) (11,000)
Vested, Weighted Average Grant Date Fair Value $ 12.86 $ 14.95
Forfeited   (5,000)
Forfeited, Weighted Average Grant Date Fair Value   $ 23.44
Ending balance 583,000 597,000
Ending balance, Weighted Average Grant Date Fair Value $ 17.15 $ 16.95
Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted 11,000  
Granted, Weighted Average Grant Date Fair Value $ 15.49  
Ending balance 11,000 0
Ending balance, Weighted Average Grant Date Fair Value $ 15.49