Intangible Assets and Goodwill - Summary of Goodwill by Segment (Detail) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Apr. 30, 2014	Jul. 31, 2015	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Goodwill [Roll Forward]
Gross goodwill					$ 388,364	$ 391,170	$ 386,595	$ 386,595
Foreign currency translation and other					(1,039)	(2,806)	4,575
Impairments		$ (4,000)	$ (15,000)		(79,583)	(178,197)	0
Accumulated impairment losses					(307,742)	(129,545)	(129,545)	(129,545)
Net goodwill					0	80,622	261,625	257,050
Americas Segment [Member]
Goodwill [Roll Forward]
Gross goodwill					74,415	74,943	75,974	75,974
Foreign currency translation and other					(1,039)	(528)	(1,031)
Impairments	$ (74,000)			$ (74,000)	(73,376)	0
Accumulated impairment losses					0	0	0	0
Net goodwill					0	74,415	74,943	75,974
EMEA [Member]
Goodwill [Roll Forward]
Gross goodwill					178,197	180,475	174,869	174,869
Foreign currency translation and other					0	(2,278)	5,606
Impairments		$ (178,000)			0	(178,197)
Accumulated impairment losses					(178,197)	0	0	0
Net goodwill					0	0	180,475	174,869
APAC [Member]
Goodwill [Roll Forward]
Gross goodwill					135,752	135,752	135,752	135,752
Foreign currency translation and other					0	0	0
Impairments				$ (6,000)	(6,207)	0
Accumulated impairment losses					(129,545)	(129,545)	(129,545)	(129,545)
Net goodwill					$ 0	$ 6,207	$ 6,207	$ 6,207