Income Taxes (Schedule of Provision for Income Taxes Attributable to Income from Operations and Amount Computed by Applying Statutory Federal Income Tax Rate) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Income Tax Disclosure [Abstract]
Computed expected provision for taxes	$ 103,500	$ 75,400	$ 103,800
Income earned outside the United States subject to different tax rates	(81,200)	(72,600)	(85,500)
State taxes, net of federal income tax benefit	1,200	1,400	800
Foreign source income subject to United States tax	0	0	500
Research and development credit	(1,200)	(700)	(100)
Incentive stock option compensation and non-deductible employee compensation	500	400	400
Tax accrual adjustment	(5,000)	3,800	3,800
Other, net	2,900	2,600	1,000
Income tax provision	$ 20,699	$ 10,341	$ 24,705