Intangible Assets and Goodwill - Summary of Goodwill by Segment (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Jul. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Goodwill [Line Items]
Gross goodwill	$ 405,471	$ 407,279	$ 402,712
Accumulated impairment losses	(324,626)	(129,545)	(129,545)
Net goodwill	80,845	277,734	273,167
Foreign currency translation and other	(1,808)	4,567
Americas [Member]
Goodwill [Line Items]
Gross goodwill	74,638	74,943	75,974
Accumulated impairment losses	0	0	0
Net goodwill	74,638	74,943	75,974
Foreign currency translation and other	(305)	(1,031)
EMEA [Member]
Goodwill [Line Items]
Gross goodwill	195,081	196,584	190,986
Accumulated impairment losses	(195,081)	0	0
Net goodwill	0	196,584	190,986
Foreign currency translation and other	(1,503)	5,598
APAC [Member]
Goodwill [Line Items]
Gross goodwill	135,752	135,752	135,752
Accumulated impairment losses	(129,545)	(129,545)	(129,545)
Net goodwill	6,207	6,207	6,207
Foreign currency translation and other	$ 0	$ 0