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, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Income Tax Disclosure [Abstract]
Computed expected provision for taxes	$ 109,295	$ 96,408	$ 67,468
Income earned outside the United States subject to different tax rates	(97,002)	(71,282)	(56,877)
State taxes, net of federal income tax benefit	525	294	218
Foreign source income subject to United States tax	294	0	0
Research and development credit	(2,066)	(131)	(1,183)
Incentive stock option compensation and non-deductible employee compensation	371	347	(119)
Tax accrual adjustment	2,854	665	7,167
Other, net	1,094	507	660
Income tax provision	$ 15,365	$ 26,808	$ 17,334