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Goodwill And Other Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2011
Goodwill And Other Intangible Assets, Net [Abstract]  
Schedule Of Aggregate Goodwill And Other Intangible Assets
Estimated Aggregate Amortization Expense
2012
  $ 49,620  
2013
    46,117  
2014
    43,688  
2015
    37,099  
2016
    28,043  
2017 and after
    59,181  
Schedule Of Goodwill