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Other Income, Net (Schedule Of Other Income, Net) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Other Income, Net [Abstract]      
Gain from sale of Mediguide shares   $ 12,809 [1] $ 1,105 [1]
Other 1,909 450 (647)
Other income, net $ 1,909 $ 13,259 $ 458
[1] Gain from the sale of Mediguide Inc. shares to St. Jude Medical in 2008, recognized during 2008, 2009 and 2010.