Summary of Restructuring Activity (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jul. 31, 2015	Oct. 31, 2014
Restructuring And Related Activities [Abstract]
Accrued Liabilities, Beginning Balance	$ 5,915
Accrued Liabilities, Amounts accrued and incurred	10,126	$ 20,388
Accrued Liabilities, Amounts paid	(10,968)	(11,688)
Accrued Liabilities, Write-off	(651)	(2,585)
Accrued Liabilities, Currency translation adjustments	(227)	(200)
Accrued Liabilities, Ending Balance	$ 4,195	$ 5,915