v3.26.1
Share-Based Compensation - Share-Based Compensation Expense Included in Selling, General and Administrative Expenses in Consolidated Statements of Income (Detail) - USD ($)
$ in Thousands
3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 8,137 $ 7,763
Performance Stock Units (PSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense 1,164 1,205
Restricted Stock Units (RSUs)    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based compensation expense $ 6,973 $ 6,558