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Property, Plant And Equipment, Intangible Assets And Goodwill (Schedule Of Future Amortization Expenses) (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Property, Plant And Equipment, Intangible Assets And Goodwill [Abstract]    
2013   $ 283,942
2014 257,198 264,221
2015 238,328 239,211
2016 219,683 223,293
2017 193,684 196,681
2018 $ 124,643