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Compensation Expense and Related Income Tax Benefit in Connection with Share- Based Compensation Plans (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]      
Share-based compensation expense recognized in selling, general and administrative expenses before income taxes $ 10,236 $ 9,191 $ 4,071
Income tax benefit (4,247) (3,805) (1,691)
Total share-based compensation expense after income taxes $ 5,989 $ 5,386 $ 2,380