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Retirement Plans And Postretirement Benefits (One-Percentage Point Change In Assumed Health Care Cost Trend Rates) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
One Percentage Point Increase, Effect on total service cost and interest cost components $ 2
One Percentage Point Increase, Effect on benefit obligations 67
One Percentage Point Decrease, Effect on total service cost and interest cost components (2)
One Percentage Point Decrease, Effect on benefit obligations (63)
Foreign [Member]  
Defined Benefit Plan Disclosure [Line Items]  
One Percentage Point Increase, Effect on total service cost and interest cost components 75
One Percentage Point Increase, Effect on benefit obligations 599
One Percentage Point Decrease, Effect on total service cost and interest cost components (63)
One Percentage Point Decrease, Effect on benefit obligations $ (507)