Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Prepaid expenses and other assets
Derivative [Line Items]
Estimated Fair Value - Interest rate swaps with customer	$ 5,100	$ 3,400
Accrued expenses and other liabilities
Derivative [Line Items]
Estimated Fair Value - Interest rate swap with third party	5,100	3,400
Non-hedging interest rate derivatives | Interest rate swaps
Derivative [Line Items]
Notional Amounts - Interest rate swaps with customer	171,798	146,537
Notional Amounts - Interest rate swap with third party	171,798	146,537
Estimated Fair Value - Interest rate swaps with customer	(1,643)	(882)
Estimated Fair Value - Interest rate swap with third party	$ 1,643	$ 882