Derivatives And Hedging (Summary Of Fair Value Interest Rate Contracts Activity (Details) (Fair Value Hedging [Member], Interest Rate Contracts [Member], Interest Expense, Net [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value Hedging [Member] | Interest Rate Contracts [Member] | Interest Expense, Net [Member]
Derivatives, Fair Value [Line Items]
Gain (Loss) on Contracts	$ (1,386)		$ (4,643)		$ (860)
Gain (Loss) on Borrowings	1,386		4,643		860
Net Settlements and Accruals on Contracts	2,179	[1]	4,082	[1]	6,749	[1]
Amount of Gain (Loss) Recognized in Income	$ 2,179	[2]	$ 4,082	[2]	$ 6,749	[2]

[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.