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Employee Benefit and Deferred Compensation Plans (Details 4) $ in Thousands | Dec. 31, 2017 USD ($)
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Pension Benefits |
Estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost |
Prior service cost | $ 0
Actuarial loss | 349
Total | 349
Other Benefits |
Estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost |
Prior service cost | 0
Actuarial loss | 0
Total | $ 0

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