Stock-Based Compensation (Fair Value of Options and Employee Stock Purchase Plan) (Details)	12 Months Ended
Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	0.00%	28.00%	28.40%
Risk-free interest rate	0.00%	1.30%	1.60%
Expected life (in years)	0 years	4 years 9 months 18 days	4 years 9 months 18 days
Expected dividend yield	0.00%	0.00%	0.00%
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	25.30%	21.10%	25.10%
Risk-free interest rate	0.62%	0.50%	0.30%
Expected life (in years)	1 year 7 months 6 days	1 year 7 months 6 days	1 year 7 months 6 days
Expected dividend yield	0.00%	0.00%	0.00%
Long-Term Incentive Plan (LTIP) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	27.10%	32.10%	32.50%
Risk-free interest rate	1.00%	0.90%	0.70%
Expected life (in years)	2 years 8 months 12 days	2 years 8 months 12 days	2 years 10 months 24 days
Expected dividend yield	0.00%	0.00%	0.00%

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

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

+ References

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- Definition

Weighted average expected volatility rate of share-based compensation awards.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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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 50
-Paragraph 2
-Subparagraph (f)(2)(i)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: 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=27013229&loc=d3e301413-122809

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