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Share-Based Compensation Expense (Details 2) (Restricted Stock Units (RSUs) [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
	Apr. 30, 2013	Oct. 31, 2012
Restricted Stock Units (RSUs) [Member]
Summary of Restricted Stock Unit Activity
Balance at October 31, 2012	4,403
Granted	2,225
Vested	(970)
Canceled or forfeited	(531)
Balance at April 30, 2013	5,127
Weighted Average Grant Date Fair Value Per Share (in dollars per share)	$ 14.91	$ 14.16
Aggregate Fair Value	$ 75,405	$ 56,267

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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