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Employee Benefit Plans and Other Postretirement Benefits - Schedule Of Expected Benefit Payments For Next Five Years And Thereafter (Details) $ in Thousands | Dec. 31, 2019 USD ($)
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Pension Plan Assets |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
Expected benefit payments in 2020 | $ 97,227
Expected benefit payments in 2021 | 98,376
Expected benefit payments in 2022 | 101,566
Expected benefit payments in 2023 | 104,864
Expected benefit payments in 2024 | 108,436
Expected benefit payments 2025-2028 | 590,687
SERPA Benefits |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
Expected benefit payments in 2020 | 2,666
Expected benefit payments in 2021 | 3,000
Expected benefit payments in 2022 | 3,309
Expected benefit payments in 2023 | 4,176
Expected benefit payments in 2024 | 4,401
Expected benefit payments 2025-2028 | 29,048
Postretirement Health Coverage |
Defined Benefit Plan, Expected Future Benefit Payment [Abstract] |
Expected benefit payments in 2020 | 23,328
Expected benefit payments in 2021 | 23,501
Expected benefit payments in 2022 | 23,625
Expected benefit payments in 2023 | 23,307
Expected benefit payments in 2024 | 22,902
Expected benefit payments 2025-2028 | $ 109,195

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