Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Jan. 31, 2014 Location	Jan. 31, 2013
Income Tax Disclosure [Abstract]
Effective income tax rate reconciliation, percent	(42.50%)	(22.20%)
Unrecognized tax benefits	$ 87,900,000
Unrecognized tax benefits, if recognized	81,200,000
Uncertain tax positions, interest and penalties accrued	1,600,000
Uncertain tax positions, interest and penalties recognized and expensed	$ 300,000
Number of states in which entity operates	50