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Business Segment Information (Schedule of Long-Lived Assets By Country Of Domicile) (Details) (USD $)
In Thousands, unless otherwise specified
Apr. 30, 2013
Oct. 31, 2012
Segment Reporting Information [Line Items]    
Total long-lived assets $ 636,882 $ 640,255
United States [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets 380,628 371,314
Europe [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets 249,286 261,269
Rest Of World [Member]
   
Segment Reporting Information [Line Items]    
Total long-lived assets $ 6,968 $ 7,672