Derivative Instruments And Hedging Activities (Impact Of Non Designated Derivative Instruments On Income Statement) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Gain (Loss) Recognized in Income on Derivatives	$ (14,829)	$ (5,113)	$ 249
Foreign Exchange Contracts [Member]
Gain (Loss) Recognized in Income on Derivatives	(600)	400	200
Foreign Exchange Contracts [Member] | Other Expense [Member]
Gain (Loss) Recognized in Income on Derivatives	(630)	411	249
Oil And Natural Gas Commodity Contracts [Member] | Income From Discontinued Operations Net Of Tax [Member]
Gain (Loss) Recognized in Income on Derivatives		5,550
Oil And Natural Gas Commodity Contracts [Member] | Loss On Commodity Derivative Contracts [Member]
Gain (Loss) Recognized in Income on Derivatives	(14,113)	(10,507)
Interest Rate Swaps [Member] | Other Expense [Member]
Gain (Loss) Recognized in Income on Derivatives	$ (86)	$ (567)