XML 101 R87.htm IDEA: XBRL DOCUMENT v3.19.1
Pensions and Other Postretirement Benefit Plans (Schedule of Expected Cash Flows) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Pension Plans [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Expected employer contributions in the next fiscal year $ 4,150
2019 7,292
2020 7,472
2021 8,175
2022 8,322
2023 8,647
2024 - 2028 49,846
Other postretirement benefits [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Expected employer contributions in the next fiscal year 3,890
2019 3,890
2020 3,771
2021 3,701
2022 3,653
2023 3,613
2024 - 2028 $ 17,066