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Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
Apr. 30, 2013
Oct. 31, 2012
Accumulated Other Comprehensive Income Loss Net Of Tax [Line Items]    
Foreign currency translation adjustment $ 74,112 $ 80,656
Gain on cash flow hedges 3,687 5,756
Accumulated other comprehensive income, net of tax $ 77,799 $ 86,412