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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
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.