Derivatives and Hedging (Summary of Fair Value Interest Rate Contracts Activity) (Details) - Fair Value Hedges [Member] - Interest Rate Contracts [Member] - Interest Expense [Member] - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Contracts		$ (442)	$ (109)	$ (389)	$ (519)
Gain (Loss) on Borrowings		442	109	389	519
Net Settlements and Accruals on Contracts	[1]	513	529	1,038	1,145
Amount of Gain (Loss) Recognized in Income	[2]	$ 513	$ 529	$ 1,038	$ 1,145

[1] Amounts in this caption include gain (loss) recognized in income on derivatives and net cash settlements.

[2] No ineffectiveness was recognized during the respective periods.