Derivative Instruments And Hedging Activities ((Gain/(Loss) Recognized In Income On Derivative) (Details) (Not Designated as Hedging Instrument [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/Loss Recognized in Income on Derivative	$ (535)	$ 0	$ (6,351)
Derivatives - Securitization Transactions [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/Loss Recognized in Income on Derivative	0	0	(8)
Derivatives - Conduit Facility [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/Loss Recognized in Income on Derivative	0	0	(6,343)
Commodities Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain/Loss Recognized in Income on Derivative	$ (535)	$ 0	$ 0