Significant Accounting Policies - Impairment Charges Reduced Carrying Amounts Respective Long-Lived Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
Accounting Policies [Abstract]
Carrying value of long-lived assets	$ 10,181	$ 7,933	$ 13,592
Less: impairment charges	(10,181)	(7,234)	(12,228)
Fair value of long-lived assets		$ 699	$ 1,364