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Goodwill And Other Intangible Assets, Net (Schedule Of Goodwill) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Goodwill And Other Intangible Assets, Net [Abstract]  
Balance, at January 1, $ 499,326
Net translation differences 1,272 [1]
Balance, at December 31, $ 500,598
[1] Foreign currency translation differences resulting from goodwill allocated to reporting units, whose functional currency has been determined to be other than the U.S. dollar.