Intangible Assets and Goodwill - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Revenue, Major Customer [Line Items]
Intangible amortization expense	$ 1	$ 2
Estimated annual amortization expense fiscal 2013	2
Estimated annual amortization expense fiscal 2014	2
Estimated annual amortization expense fiscal 2015	2
Estimated annual amortization expense fiscal 2016	2
Estimated annual amortization expense fiscal 2017	2
Estimated annual amortization expense fiscal 2018	2
Decrease in goodwill	$ 0.4
Minimum [Member]
Revenue, Major Customer [Line Items]
Estimated useful life of trademarks	10 years
Maximum [Member]
Revenue, Major Customer [Line Items]
Estimated useful life of trademarks	25 years