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Employee Benefit Plans (Expected Future Benefit Payments) (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Pension [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2019 $ 1,850
2020 1,971
2021 2,059
2022 2,192
2023 2,273
2024-2028 12,944
SERP [Member]  
Defined Benefit Plan Disclosure [Line Items]  
2019 315
2020 319
2021 374
2022 377
2023 369
2024-2028 $ 2,453