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Goodwill And Intangible Assets (Estimated Future Amortization Of Intangible Assets) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2011
Goodwill And Intangible Assets [Abstract]  
2012 $ 66,266
2013 53,228
2014 33,127
2015 18,663
2016 13,314
2017 and thereafter 8,008
IPR&D (to be amortized upon project completion or written off upon abandonment) 3,425 [1]
Total $ 196,031
[1] IPR&D projects are estimated to be completed within two years as of October 31, 2011. Amortization will begin upon project completion or the asset will be written off upon abandonment.