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Stock-Based Benefit Plans (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Stock Price-Based RSUs issued
RSU expense recognized	$ 5,626	$ 5,373
Stock Price Based Restricted Stock Units [Member]
Stock Price-Based RSUs issued
RSU expense recognized	$ 848	$ 752

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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