Derivatives (Amount Of Gain Or (Loss) Recognized In Accumulated OCI On Derivative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of Gain Recognized in Accumulated OCI on Derivative	$ 7,587	[1]	$ 19,026	[1]

[1] Net of taxes.