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, 2015	Oct. 31, 2014	Oct. 31, 2013
Income Tax Disclosure [Abstract]
Computed expected provision for taxes	$ 75,400	$ 103,800	$ 109,300
Income earned outside the United States subject to different tax rates	(72,600)	(85,500)	(97,000)
State taxes, net of federal income tax benefit	0	500	500
Foreign source income subject to United States tax	1,400	800	300
Research and development credit	(700)	(100)	(2,100)
Incentive stock option compensation and non-deductible employee compensation	400	400	400
Tax accrual adjustment	3,800	3,800	2,900
Other, net	2,600	1,000	1,100
Income tax provision	$ 10,341	$ 24,705	$ 15,365