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Employee Benefit Plans - Defined Benefit Plans - Expected Benefit Payments (Details) - The Bank - Cash Balance Plan
$ in Thousands
Dec. 31, 2017
USD ($)
Expected benefit payments  
2018 $ 3,499
2019 801
2020 668
2021 803
2022 1,515
2023 - 2027 6,611
Total expected benefit payments $ 13,897