Derivative Financial Instruments (Details 2) - Non-hedging derivative financial instruments - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Derivative Financial Instruments
Gain (loss)	$ 298	$ 448
Interest rate swap contracts | Other expense
Derivative Financial Instruments
Gain (loss)	333	(519)
Interest rate swap contracts | Other income
Derivative Financial Instruments
Gain (loss)	86	91
Loan commitments | Mortgage banking income
Derivative Financial Instruments
Gain (loss)	(698)	1,196
Forward contracts - mortgage loan | Mortgage banking income
Derivative Financial Instruments
Gain (loss)	$ 577	$ (320)