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Employee Benefit Plans - Expected Benefit Payments (Details) - Post-employment benefits $ in Thousands | Dec. 31, 2018 USD ($)
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2019 | $ 484
2020 | 468
2021 | 438
2022 | 426
2023 | 376
2024-2028 | 961
Total | 3,153
Medicare Part D Subsidy Receipts |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2019 | 17
2020 | 15
2021 | 14
2022 | 13
2023 | 11
2024-2028 | 34
Total | $ 104

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