Other Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest rate swap liability	$ 0	$ 894
Other	2,800	758
Other liabilities	12,698	11,691
Interest Rate Swap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest rate swap asset balance	93
Pension plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and supplemental executive retirement plan liability	2,148	2,280
SERP
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and supplemental executive retirement plan liability	$ 7,750	$ 7,759