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Stock-Based Compensation (Outstanding and Exercisable Stock Options) (Details) (USD $)	9 Months Ended
	Aug. 31, 2013
Options
Options outstanding at beginning of period, options	10,105,546
Granted, options	0
Exercised, options	(115,208)
Cancelled, options	0
Options outstanding at end of period, options	9,990,338
Options exercisable at end of period	8,476,681
Weighted Average Exercise Price in dollars per share
Options outstanding at beginning of period, weighted average exercise price in dollars per share	$ 21.27
Granted, weighted average exercise price in dollars per share	$ 0.00
Exercised, weighted average exercise price in dollars per share	$ 13.51
Cancelled, weighted average exercise price in dollars per share	$ 0.00
Options outstanding at end of period, weighted average exercise price in dollars per share	$ 21.36
Options exercisable at end of period	$ 23.81

X

- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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-Subparagraph b(1)(c), d(2)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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Net number of share options (or share units) granted during the period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

+ References

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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