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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