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Intangible Assets, Net (Schedule Of Estimated Amortization Expense) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Intangible Assets, Net [Abstract]  
2012 $ 37,194
2013 23,640
2014 23,487
2015 19,149
2016 32,650
2017 and thereafter 175,549
Estimated amortization expense, total $ 311,669