Business Segment Information (Schedule Of Long-Lived Assets By Country Of Domicile) (Details) (USD $) In Thousands	Jul. 31, 2011	Oct. 31, 2010
Total Long-lived assets	$ 601,094	$ 593,887
United States [Member]
Total Long-lived assets	364,062	357,200
Europe [Member]
Total Long-lived assets	227,042	227,780
Rest Of World [Member]
Total Long-lived assets	$ 9,990	$ 8,907