Income Taxes - Schedule of Effective Federal Income Tax Rates, Computed and Expected (Detail)	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011
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%	1.70%
Foreign tax rate differential	(9.20%)	(11.20%)	(12.20%)
Foreign tax exempt income		36.80%	14.30%
Goodwill impairment			(58.00%)
Stock-based compensation	(2.20%)	(24.90%)	(4.30%)
Uncertain tax positions	1.20%	12.50%	163.20%
Valuation allowance	(250.80%)	(88.00%)	(90.10%)
Other	(1.20%)	9.70%	(6.10%)
Effective income tax rate	(227.10%)	(29.30%)	43.50%