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Retirement Plans And Postretirement Benefits (Projected Future Pension Plan Cash Flow By Year) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
U.S. [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Expected employer contributions $ 684
Expected employee contributions 0
2017 9,240
2018 9,221
2019 9,221
2020 9,182
2021 9,136
2024-2028 43,993
Foreign [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Expected employer contributions 744
Expected employee contributions 0
2017 858
2018 755
2019 824
2020 824
2021 955
2024-2028 $ 8,223