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Share-Based Compensation (Summary Of Restricted Stock Activity) (Details) - $ / shares
9 Months Ended
Sep. 30, 2015
Sep. 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 30,000 246,000
Granted, Weighted Average Grant Date Fair Value $ 12.47 $ 20.48
Vested (44,000) (32,000)
Vested, Weighted Average Grant Date Fair Value $ 10.53 $ 9.67
Forfeited   (5,000)
Forfeited, Weighted Average Grant Date Fair Value   $ 23.44
Ending balance 565,000 596,000
Ending balance, Weighted Average Grant Date Fair Value $ 17.47 $ 17.07
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  
Vested (3,000)  
Vested, Weighted Average Grant Date Fair Value $ 15.49  
Ending balance 8,000 0
Ending balance, Weighted Average Grant Date Fair Value $ 15.49