Reconciliation of Total Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Income Tax Contingency [Line Items]
Beginning balance	$ 88,448	$ 95,956
Additions for tax positions related to the current year	1,635	590
Reductions for tax positions related to the current year	(589)
Additions for tax positions related to prior years	631	865
Reductions for tax positions related to prior years	(107)	(7,328)
Reductions for expiration of statute of limitations	(1,479)	(66)
Settlements	(929)	(1,569)
Ending Balance	$ 87,610	$ 88,448