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Accumulated Other Comprehensive Income (Loss) - Effect of Amounts Reclassified out of Each Component of Accumulated Other Comprehensive Income (Loss) into Net Income (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2014
Jul. 31, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain (loss) on cash flow hedges, net of taxes $ 2,540 $ 3,741 $ 4,973 $ 5,471
Foreign Exchange Contracts | Revenue
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain (loss) on cash flow hedges, net of taxes 1,563 3,771 3,237 6,325
Foreign Exchange Contracts | Operating Expenses
        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Gain (loss) on cash flow hedges, net of taxes $ 977 $ (30) $ 1,736 $ (854)