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Business Segment Information (Schedule Of Long-Lived Assets By Country Of Domicile) (Details) (USD $)
In Thousands, unless otherwise specified
Jul. 31, 2012
Oct. 31, 2011
Segment Reporting Information [Line Items]    
Total long-lived assets $ 617,615 $ 609,205
United States [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets 363,346 373,211
Europe [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets 245,773 226,665
Rest Of World [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets $ 8,496 $ 9,329