Derivatives and Hedging Activities (Details 2) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Asset Derivatives
Gross Amounts of Recognized Assets	$ 24,790	$ 8,656
Net Amounts Of Assets Presented in the Statement of Financial Position	24,790	8,656
Net Amount	24,790	8,656
Liability Derivatives
Gross Amounts of Recognized Liabilities	24,790	8,781
Net Amounts Of Liabilities Presented in the Statement of Financial Position	24,790	8,781
Gross Amounts Not Offset in the Statement of Financial Position
Financial Instruments Pledged	36,629	9,873
Cash Collateral Pledged	720	4,790
Net Amount	$ 0	$ 0