XML 28 R100.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Pensions and Other Postretirement Plans (Future Estimated Benefit Payments) (Details 4)
$ in Thousands
Dec. 31, 2019
USD ($)
Pension Plans [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2020 $ 60,666
2021 60,964
2022 61,256
2023 61,497
2024 61,469
2025-2029 305,371
Supplemental Executive Retirement Plan (SERP) [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2020 6,552
2021 6,845
2022 7,056
2023 7,195
2024 7,293
2025-2029 36,760
Other Postretirement Plans [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2020 1,153
2021 955
2022 856
2023 724
2024 569
2025-2029 $ 1,699