Valuation and Qualifying Accounts (Detail) (Allowance for Doubtful Accounts, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2013		Oct. 31, 2012		Oct. 31, 2011
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 1,785		$ 1,373		$ 1,373
Charged to Costs and Expenses	470		412		0
Charged to Other Accounts
Deductions Describe	55	[1]	0	[1]	0	[1]
Balance at End of Period	$ 2,200		$ 1,785		$ 1,373

[1] Uncollectible accounts written off, net of recoveries