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Intangible Assets (Schedule Of Estimated Amortization Expense For Intangible Assets Next Five Years) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]    
Remainder of 2012 $ 11,293  
2013 17,185  
2014 10,708  
2015 8,372  
2016 7,255  
Thereafter 28,919  
Finite-Lived Intangible Assets, Net, Total $ 83,732 $ 73,074