Derivatives and Hedging Activities (Details 2) - Fair Value Hedging [Member] $ in Thousands	Sep. 30, 2018 USD ($)
Designated as Hedging Instrument [Member]
Asset Derivatives Fair Value	$ 747
Liability Derivatives Fair Value	(3,442)
Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest Rate and Foreign Exchange Products [Member]
Asset Derivatives Fair Value	747
Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate and Foreign Exchange Products [Member]
Liability Derivatives Fair Value	(3,442)
Not Designated as Hedging Instrument [Member]
Asset Derivatives Fair Value
Liability Derivatives Fair Value	(4,450)
Not Designated as Hedging Instrument [Member] | Other Assets [Member] | Interest Rate and Foreign Exchange Products [Member]
Asset Derivatives Fair Value
Not Designated as Hedging Instrument [Member] | Other Liabilities [Member] | Interest Rate and Foreign Exchange Products [Member]
Liability Derivatives Fair Value	$ (4,450)