Business Segment Information (Schedule of Long-Lived Assets By Country Of Domicile) (Details) - USD ($) $ in Thousands	Jul. 31, 2016	Oct. 31, 2015
Segment Reporting Information [Line Items]
Total long-lived assets	$ 922,211	$ 967,097
United States [Member]
Segment Reporting Information [Line Items]
Total long-lived assets	487,500	494,200
Europe [Member]
Segment Reporting Information [Line Items]
Total long-lived assets	358,200	407,900
Rest Of World [Member]
Segment Reporting Information [Line Items]
Total long-lived assets	$ 76,500	$ 65,000