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Share-Based Compensation (Summary Of Type And Fair Value Of Share-Based Compensation Awards) (Details) - $ / shares | 3 Months Ended
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Nov. 30, 2018 | Nov. 30, 2017
Stock Options [Member] |  |
Number of units granted | 38,337 | 44,312
Weighted average grant-date fair value per award | $ 24.71 | $ 30.73
Restricted Stock Units [Member] |  |
Number of units granted | 29,013 | 69,198
Weighted average grant-date fair value per award | $ 88.27 | $ 87.06
Performance Stock Units [Member] |  |
Number of units granted | 20,631 | 14,854
Weighted average grant-date fair value per award | $ 88.27 | $ 88.06

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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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Period Type: | duration

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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 (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Details
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- Details
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