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Earnings (Loss) Per Share - Reconciliation of Shares Used in Computation of Basic and Diluted Earnings (Loss) Per Common Share (Detail) - shares shares in Thousands | 3 Months Ended
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Nov. 30, 2023 | Nov. 30, 2022
Earnings Per Share Disclosure [Line Items] |  |  |
Weighted average basic common shares outstanding |  | 31,025 | 32,719
Dilutive effect of convertible notes | [1] | 826 |
Dilutive effect of restricted stock units | [2],[3] | 931 |
Weighted average diluted common shares outstanding |  | 32,782 | 32,719
[1] | The dilutive effect of the 2.875% Convertible notes due 2024 was excluded for the three months ended November 30, 2022 as they were considered anti-dilutive under the “if converted” method as further discussed below.
[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
[3] | The dilutive effect of common stock equivalents was excluded from the share calculation for the three months ended November 30, 2022 due to a net loss.

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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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