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Stock-Based Compensation Plans - Summary of Restricted Share Units Activity (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vested or expected to vest, weighted-average exercise price (in dollars per share) $ 45.54    
Vested or expected to vest, weighted-average remaining contractual life (Year) 4 years 1 month 6 days    
Vested or expected to vest, aggregate intrinsic value $ 45.7    
Restricted Stock Units (RSUs) [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Units Outstanding (in shares), Beginning 410,980 432,195  
Weighted-Average Grant Date Fair Value, PSU (in dollars per share), Beginning $ 29.17 $ 19.98  
Weighted-Average Remaining Contractual, PSU (Year) 4 years 8 months 12 days 5 years 4 years 8 months 12 days
Aggregate Intrinsic Value, PSU $ 35.2 $ 30.3 $ 25.2
Number of PSUs Granted (in shares) 63,651 50,099  
PSUs Granted, Weighted-Average Granted Date Fair Value (in dollars per share) $ 61.53 $ 65.33  
Exercised (in shares)   (71,314)  
Exercised (in dollars per share)   $ 7.14  
Number of Units Outstanding (in shares), Ending 474,631 410,980 432,195
Weighted-Average Grant Date Fair Value, PSU (in dollars per share), Ending $ 32.44 $ 29.17 $ 19.98
Vested or expected to vest, RSU (in shares) 474,631    
Vested or expected to vest, weighted-average exercise price (in dollars per share) $ 32.44    
Vested or expected to vest, weighted-average remaining contractual life (Year) 4 years 8 months 12 days    
Vested or expected to vest, aggregate intrinsic value $ 35.2    
Exercisable, number of units (in shares) 415,496    
Exercisable, PSU weighted-average granted date fair value (in dollars per share) $ 28.26    
Exercisable, Weighted-Average Remaining Contractual, PSU (Year) 4 years 1 month 6 days    
Exercisable, Aggregate Intrinsic Value, PSU $ 30.8