Significant Accounting Policies - Impairment Charges Reduced Carrying Amounts Respective Long-Lived Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Accounting Policies [Abstract]
Carrying value of long-lived assets	$ 15,700	$ 10,934	$ 10,181
Less: impairment charges	(15,700)	(10,934)	(10,181)
Fair value of long-lived assets	$ 0	$ 0	$ 0