Financial Instruments And Risk Management (Effect Of Derivative Instruments On The Condensed Consolidated Statements Of Operations, Derivatives Not Designated As Hedging Instruments) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ (11,231)	$ 5,255
Foreign currency forward contracts | Other income (expense), net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	(11,231)	5,255
Cash conversion feature of Cash Convertible Notes | Other income (expense), net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	(55,300)	(51,600)
Purchased cash convertible note hedge | Other income (expense), net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 55,300	$ 51,600