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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

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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