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Retirement Plans And Postretirement Benefits (Pension Plans With An Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) (Retirement Plans [Member], USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
U.S. [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Accumulated benefit obligation $ 151,469 $ 144,809
Fair value of plan assets 91,319 80,935
Foreign [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Accumulated benefit obligation 78,595 72,075
Fair value of plan assets $ 71,750 $ 64,938