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Retirement Plans And Postretirement Benefits (Projected Future Pension Plan Cash Flow By Year) (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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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

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