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Stock-Based Compensation And Other Incentive Plans Stock Based Compensation And Other Incentive Plans (Changes in Stock Options Outstanding And Not Yet Vested And Related Grant-Date Fair Value Under The Incentive Plan) (Details)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Stock Based Compensation And Other Incentive Plans [Abstract]      
Unvested options, Weighted Average Grant-Date Fair Value 10.96 7.77  
Granted, Weighted Average Grant-Date Fair Value 5.27    
Vested, Weighted Average Grant-Date Fair Value 11.13    
Canceled, Weighted Average Grant-Date Fair Value 9.81    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Options outstanding at January 1 1,796 2,369  
Granted, Common Shares 1,311    
Vested, Common Shares (721)    
Cancelled, Common Shares (17)    
Options outstanding at December 31     4,953