Derivatives And Fair Value Measurements (Net Deferred Hedge Gain in AOCI to be Released into Earnings) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
Credit Risk Derivatives, at Fair Value, Net [Abstract]
Net Deferred Hedge Gain in AOCI to be Released into Earnings Remainder of Fiscal Year	$ 15,254
Net Deferred Hedge Gain in AOCI to be Released into Earnings Year Two	37,084
Net Deferred Hedge Gain in AOCI to be Released into Earnings Year Three	33,191
Net Deferred Hedge Gain in AOCI to be Released into Earnings Year Four	13,476
Net Deferred Hedge Gain in AOCI to be Released into Earnings Year Five	12,531
Net Deferred Hedge Gain in AOCI to be Released into Earnings Thereafter	41,443
Net Deferred Hedge Gain in AOCI to be Released into Earnings	$ 152,979