v2.4.0.6

Summary of Impact of Deferred Plan (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Oct. 31, 2012 | Oct. 31, 2011 | Oct. 31, 2010
Employee Benefit Plan [Line Items] |  |  |
Increase (reduction) to cost of revenue and operating expense | $ 7,498 | $ 2,449 | $ 9,426
Other income (expense), net | 7,498 | 2,449 | 8,810
Net increase (decrease) to net income |  |  | $ (616)

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