Annual report pursuant to Section 13 and 15(d)

Stocks Plans - Additional Information (Detail)

v3.23.3
Stocks Plans - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Aug. 31, 2023
Aug. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Class A Common Stock were authorized for issuance 7,825,000  
Shares available for future grants 3,365,219  
Exercise price as percentage of fair market value at grant date 100.00%  
Unrecognized compensation cost related to share-based compensation for stock options and restricted stock outstanding $ 9,400  
Unrecognized compensation cost related to share-based compensation for stock options and restricted stock outstanding, recognition period 1 year 7 months 6 days  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 3,500,000  
Domestic Plan Member    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Defined Benefit Plan, Plan Assets, Benefits Paid $ 3,289 $ 2,980
Performance Shares    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance period 3 years  
Performance Shares | Free Cash Flow Conversion Target    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.30% 50.00%
Performance Shares | Total Shareholders Return    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.30% 50.00%
Performance Shares | Adjusted Earnings Per Share    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 33.30%  
Restricted Stock    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of shares vested $ 9,800 $ 11,800
After Three Years    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00%  
After Five Years    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 100.00%  
Maximum | Stock Options    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock options term 10 years