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Pension And Postretirement Benefits (Schedule Of Information For Pension Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) (Pension Benefits [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Pension Benefits [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 729,759 $ 705,007
Accumulated benefit obligation 717,549 683,019
Fair value of plan assets $ 587,426 $ 482,019