Derivatives and Hedging Activities (Gains and Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivatives Not Designated as a Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ (229)	$ 1,441	$ (1,050)	$ (2,081)
Derivatives Not Designated as a Hedging Instruments | Interest rate products | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	(229)	1,422	(1,049)	(2,096)
Derivatives Not Designated as a Hedging Instruments | Credit contracts | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	0	19	(1)	15
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	126	147	21	309
Designated as Hedging Instrument | Interest rate products | Other income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in Income on derivatives	$ 126	$ 147	$ 21	$ 309