Stock-Based Compensation (Details)	3 Months Ended	9 Months Ended
Aug. 31, 2012	Sep. 02, 2011	Aug. 31, 2012	Sep. 02, 2011
Stock Options [Member]
Valuation Assumptions Volatility
From	0.00%	33.00%	31.00%	30.00%
To	0.00%	33.00%	34.00%	35.00%
Valuation Assumptions Risk Free Interest Rate Range
From	0.00%	1.08%	0.54%	1.08%
To	0.00%	1.08%	0.71%	1.92%
Employee Stock Purchase Plan [Member]
Valuation Assumptions Volatility
From	30.00%	30.00%	30.00%	30.00%
To	31.00%	31.00%	36.00%	34.00%
Valuation Assumptions Risk Free Interest Rate Range
From	0.15%	0.10%	0.06%	0.10%
To	0.30%	0.50%	0.30%	0.61%
Minimum [Member] \| Stock Options [Member]
Valuation Assumptions Expected Life (In Years)
Expected life (in years)	0 days	3 years 10 months 24 days	3 years 10 months 17 days	3 years 9 months 18 days
Minimum [Member] \| Employee Stock Purchase Plan [Member]
Valuation Assumptions Expected Life (In Years)
Expected life (in years)	6 months	6 months	6 months	6 months
Maximum [Member] \| Stock Options [Member]
Valuation Assumptions Expected Life (In Years)
Expected life (in years)	0 days	3 years 10 months 24 days	4 years 2 months 27 days	4 years 2 months 12 days
Maximum [Member] \| Employee Stock Purchase Plan [Member]
Valuation Assumptions Expected Life (In Years)
Expected life (in years)	2 years	2 years	2 years	2 years

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- Definition

Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.D.2)

-URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section D

-Subsection 2

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- Definition

The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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- Definition

The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

+ References

No definition available.

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- Definition

The maximum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

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- Definition

The minimum risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

No definition available.

+ Details

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