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Earnings Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings Per Common Share (Detail) - shares shares in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
May 31, 2024 | May 31, 2023 | May 31, 2024 | May 31, 2023
Earnings Per Share Disclosure [Line Items] |  |  |  |  |
Weighted average basic common shares outstanding |  | 31,131 | 31,757 | 31,091 | 32,346
Dilutive effect of convertible notes | [1] |  | 822 | 461 |
Dilutive effect of restricted stock units | [2] | 890 | 992 | 904 | 998
Weighted average diluted common shares outstanding |  | 32,021 | 33,571 | 32,456 | 33,344
[1] | The dilutive effect of the 2.875% Convertible notes due 2024 was excluded for the nine months ended May 31, 2023 as they were considered anti-dilutive under the “if converted” method as further discussed below. These notes were retired on February 1, 2024.
[2] | Restricted stock units and restricted stock units subject to performance criteria, for which actual levels of performance above target have been achieved, are included in weighted average diluted common shares outstanding when the Company is in a net earnings position

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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of convertible debt securities using the if-converted method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482689/260-10-45-42 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 40 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482689/260-10-45-40 + Details
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