Stock-Based Compensation (Narrative) (Details) - metric	9 Months Ended
Aug. 31, 2020	Aug. 31, 2019	Aug. 31, 2018
Long-Term Incentive Plan (LTIP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance metrics	2	2	2
Stock-based compensation award service period (in years)	3 years	3 years	3 years
Percentage of shares based on market condition of total shareholder return	50.00%	50.00%	50.00%
Cumulative performance condition	3 years	3 years	3 years
Percentage of shares based on cumulative performance condition	50.00%	50.00%	50.00%
Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation award service period (in years)	4 years
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation award service period (in years)	3 years

Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Performance Condition

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Performance Metrics

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Based on Cumulative Performance Condition

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Based on Market Condition of Total Shareholder Return

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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.

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