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Note 16 (Detail) (USD $) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 31, 2012 | Jul. 31, 2011 | Jul. 31, 2012 | Jul. 31, 2011 | Oct. 31, 2011
Income Tax Expense (Benefit) | $ (36,493,000) | $ (4,645,000) | $ (35,254,000) | $ (6,081,000) |
Deferred Tax Assets, Valuation Allowance | $ 909,100,000 |  | $ 909,100,000 |  | $ 899,400,000

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