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Employee Benefit Plans (Summary of Expected SERP Payments) (Details) - Supplemental Executive Retirement Plan (SERP)
$ in Thousands
Dec. 31, 2018
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2019 $ 329
2020 339
2021 349
2022 359
2023 370
Thereafter 7,484
Total $ 9,230