Income Taxes - Schedule of Effective Federal Income Tax Rates, Computed and Expected (Detail)	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Income Tax Disclosure [Abstract]
Computed “expected” statutory federal income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal income tax benefit	(0.10%)	0.80%	0.10%
Foreign tax rate differential	(2.70%)	(0.80%)	(9.60%)
Goodwill impairment	(8.10%)	(18.70%)	0.00%
Stock-based compensation	(0.30%)	(0.30%)	(2.30%)
Uncertain tax positions	(0.20%)	(0.20%)	1.30%
Valuation allowance	(26.30%)	(13.60%)	(260.50%)
Other	(2.50%)	(0.90%)	(1.30%)
Effective income tax rate	(5.20%)	1.30%	(237.30%)