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Employee Benefits (Schedule Of Estimated Future Benefit Payments) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Pension Benefits [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Year one $ 2,851
Year two 3,127
Year three 3,298
Year four 3,424
Year five 3,560
Years 6 to 10 19,157
Post-Retirement Healthcare Benefit Plans [Member]
 
Defined Benefit Plan Disclosure [Line Items]  
Year one 1,835
Year two 2,018
Year three 2,180
Year four 2,146
Year five 1,888
Years 6 to 10 $ 6,050