Business Segment Information (Schedule of Net Sales To External Customers By Country Of Domicile) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Segment Reporting Information [Line Items]
Total net sales to external customers	$ 631,300	$ 522,400	$ 1,221,300	$ 1,021,500
United States
Segment Reporting Information [Line Items]
Total net sales to external customers	293,200	235,300	554,600	459,500
Europe
Segment Reporting Information [Line Items]
Total net sales to external customers	210,400	175,600	413,800	343,900
Rest of world
Segment Reporting Information [Line Items]
Total net sales to external customers	$ 127,700	$ 111,500	$ 252,900	$ 218,100