Share-Based Compensation Expense (Details 3) (Restricted Stock [Member], USD $) In Thousands, except Per Share data	9 Months Ended
Jul. 31, 2011
Restricted Stock [Member]
Summary of Restricted Stock Unit Activity
Restricted shares outstanding, Beginning Balance	5,191
Weighted Average Grant Date Fair Value Per Share, Beginning of Period	$ 13.81
Aggregate Intrinsic Value, Beginning of Period	$ 71,681,000
Restricted Stock Units Outstanding, Granted	1,855
Restricted Stock Units Outstanding, Vested	(1,916)
Restricted Stock Units Outstanding, Canceled or forfeited	(483)
Restricted shares outstanding, Ending Balance	4,647
Weighted Average Grant Date Fair Value Per Share, Ending Balance	$ 16.12
Aggregate Intrinsic Value, Ending Balance	$ 71,849,000

The intrinsic 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, as calculated by applying the disclosed pricing methodology.

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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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