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FINANCIAL INSTRUMENTS - Additional Information (Detail) (USD $)
Jul. 31, 2012
Oct. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notional amount of forward hedge contracts $ 97,600,000 $ 126,400,000
Fair value of Derivative assets 3,104,000 1,197,000
Fair value of Derivative liabilities $ 447,000 $ 1,609,000