Domestic and Foreign Components of Total Income Before Provision for Income Tax (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Schedule of Components of Income Before Income Tax Expense (Benefit) [Line Items]
United States	$ 39,855	$ 40,434	$ 57,795
Foreign	161,280	178,679	140,863
Income before provision for income taxes	$ 201,135	$ 219,113	$ 198,658