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Earnings Per Share - Antidilutive Securities Excluded from EPS Computation (Details) - shares	3 Months Ended		6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Feb. 28, 2021	Feb. 29, 2020
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Awards excluded from diluted earnings per share (in shares)	954,677	443,595	1,077,258	361,283
Performance share units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Awards excluded from diluted earnings per share (in shares)	0	0	0	7,569
Restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Awards excluded from diluted earnings per share (in shares)	71,812	102,210	116,219	116,962

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

+ Details

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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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