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Retirement Agreements and Other Postretirement Benefit Plan Effected of the Funded Status on the Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Retirement Benefits [Abstract]
Fully eligible active employee	$ (882)	$ (896)
Non-eligible active employees	0	0
Plan assets	0	0
Funded status of accumulated postretirement benefit obligation, recognized in other liabilities	$ (882)	$ (896)

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- Definition

Pension and Other Postretirement Defined Benefit Plans, Liabilities, Fully Eligible Active Employees

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Pension and Other Postretirement Defined Benefit Plans, Liabilities, Non-Eligible Active Employees

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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