v3.26.3
Income per Common Share - Additional Information (Detail) - shares
3 Months Ended 9 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Aug. 31, 2026
Aug. 31, 2025
Employee Stock Option        
Earnings Per Share Basic And Diluted [Line Items]        
Number of outstanding options excluded from computation of diluted earnings per share 1,297,478 823,278 1,361,478 784,678