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Stock-Based Compensation (Schedule Of Restricted Stock And Performance Share Awards Activity) (Details) - Restricted Stock And Performance Shares [Member]
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding unvested as of January 1, 2015 1,814,130
Number of Shares, Granted 412,191
Number of Shares, Vested (2,037,914)
Number of Shares, Forfeited/canceled/expired (188,407)
Outstanding unvested as of September 30, 2015 0
Outstanding unvested as of January 1, 2015 | $ / shares $ 6.31
Weighted-Average Grant Date Fair Value, Granted | $ / shares 9.67
Weighted-Average Grant Date Fair Value, Vested | $ / shares 6.98
Weighted-Average Grant Date Fair Value, Forfeited/canceled/expired | $ / shares 6.42
Outstanding unvested as of September 30, 2015 | $ / shares $ 0.00