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Stock-Based Benefit Plans Stock-Based Benefit Plans (Details) (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]      
Stock based expense recognized $ 15,575 $ 12,548 $ 9,689
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense $ 5,711 $ 4,793 $ 3,711