Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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+ Details

Intangible Assets and Goodwill - Goodwill Related to Operating Segments (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 30, 2013	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 272,764	$ 273,167	$ 268,589	$ 332,488
EMEA [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	190,700	190,986	186,334	181,555
Americas [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	75,857	75,974	76,048	75,051
APAC [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 6,207	$ 6,207	$ 6,207	$ 75,882