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Pensions and Other Postretirement Benefits (Estimated Future Benefit Payments) (Details) $ in Thousands | Dec. 31, 2019 USD ($)
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Pension Plans |
Defined Benefit Plan Disclosure [Line Items] |
2020 | $ 921
2021 | 1,038
2022 | 1,005
2023 | 1,569
2024 | 1,052
2024-2027 | 7,205
OPEB Plans |
Defined Benefit Plan Disclosure [Line Items] |
2020 | 294
2021 | 338
2022 | 353
2023 | 292
2024 | 328
2024-2027 | $ 1,412

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