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Stock-Based Compensation Plans - Summary of Nonvested Share (Details) - $ / shares
 12 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Jan. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 280,658 278,845 356,014
Granted, Weighted- Average Grant-Date Fair Value per Share (in dollars per share) $ 29.53 $ 26.19 $ 18.47
Shareholder-approved stock options plan      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock Options Outstanding (in shares), Beginning 446,553 488,821  
Weighted- Average Grant-Date Fair Value per Share (in dollars per share), Beginning $ 20.67 $ 16.11  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in shares) 280,658 278,845  
Granted, Weighted- Average Grant-Date Fair Value per Share (in dollars per share) $ 29.53 $ 26.19  
Vested (in shares) (301,921) (303,628)  
Vested, Weighted- Average Grant-Date Fair Value per Share (in dollars per share) $ 21.88 $ 17.74  
Forfeited (in shares) (14,888) (17,485)  
Forfeited, Weighted- Average Grant-Date Fair Value per Share (in dollars per share) $ 25.16 $ 18.29  
Stock Options Outstanding (in shares), Ending 410,402 446,553 488,821
Weighted- Average Grant-Date Fair Value per Share (in dollars per share), Ending $ 25.21 $ 20.67 $ 16.11