Derivative Instruments and Hedging Activities (Schedule of Offsetting of Derivative Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amounts of Recognized Assets	$ 3,900	$ 3,070
Gross Amounts Offset in the Balance Sheet	0	0
Net Amounts of Assets Presented in the Balance Sheet	3,900	3,070
Gross Amounts Not Offset in the Balance Sheet, Financial Instruments Collateral	(29)	(10)
Gross Amounts Not Offset in the Balance Sheet, Cash Collateral	0	0
Net Amount	$ 3,871	$ 3,060