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Stock Based Compensation (Schedule Of Assumptions Used) (Details) - Relative Performance Based Restricted Stock Units [Member] - $ / shares
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance Period 1 year  
Stock Price $ 12.27  
1 Year Vest [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance Period [1] 1 year 1 year
Stock Price $ 14.26 $ 25.95
Expected Volatilities 40.55% 44.30%
Risk Free Rate 0.18% 0.10%
Dividend Yield 1.75% 3.85%
Simulated Fair Value $ 12.27 $ 23.03
Fair Value as a % of Grant 86.03% 88.74%
3 Year Vest [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance Period [1]   3 years
Stock Price   $ 25.95
Expected Volatilities   40.02%
Risk Free Rate   0.72%
Dividend Yield   3.85%
Simulated Fair Value   $ 25.46
Fair Value as a % of Grant   98.10%
[1] In 2015, the Compensation Committee of the Board of Directors modified the performance period for the 2014 grant. The terms presented in the table above are prior to the modification. See the discussion below for the terms subsequent to the modification and the related effect on compensation expense.