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Components of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
Apr. 30, 2014
Oct. 31, 2013
Accumulated other comprehensive income (loss), net of tax    
Cumulative currency translation adjustments $ (38,062) $ (26,848)
Unrealized gain (loss) on derivative instruments, net of taxes (1,791) (1,847)
Total accumulated other comprehensive income (loss) $ (39,853) $ (28,695) [1]
[1] Derived from audited financial statements.