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		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ (7,860)	$ (19,368)	$ (16,517)	$ (5,244)
Foreign currency forward contracts | Other income, net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	(7,860)	(19,368)	(16,517)	(5,244)
Cash conversion feature of Cash Convertible Notes | Other income, net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	(98,700)	286,500	(64,800)	177,500
Purchased cash convertible note hedge | Other income, net
Derivative [Line Items]
Amount of Gain or (Loss) Recognized in Earnings on Derivatives	$ 98,700	$ (286,500)	$ 64,800	$ (177,500)