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Stock-Based Compensation Plans - Summary of Performance 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, shares (in shares) 1,593,433    
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    
Performance Shares [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Units Outstanding (in shares), Beginning 777,538 755,873  
Weighted-Average Grant Date Fair Value, PSU (in dollars per share), Beginning $ 35.76 $ 25.17  
Weighted-Average Remaining Contractual, PSU (Year) 4 years 6 months 4 years 9 months 18 days 4 years 8 months 12 days
Aggregate Intrinsic Value, PSU $ 67.9 $ 57.4 $ 44.0
Number of PSUs Granted (in shares) 97,991 77,441  
PSUs Granted, Weighted-Average Granted Date Fair Value (in dollars per share) $ 64.98 $ 88.11  
Performance units issued (in shares) 39,704 44,296  
Performance units issued, weighted-average granted date fair value (in dollars per share) $ 54.34 $ 36.63  
Exercised (in shares)   (100,072)  
Exercised (in dollars per share)   $ 9.66  
Number of Units Outstanding (in shares), Ending 915,233 777,538 755,873
Weighted-Average Grant Date Fair Value, PSU (in dollars per share), Ending $ 38.41 $ 35.76 $ 25.17
Vested or expected to vest, shares (in shares) 915,233    
Vested or expected to vest, weighted-average exercise price (in dollars per share) $ 38.41    
Vested or expected to vest, weighted-average remaining contractual life (Year) 4 years 6 months    
Vested or expected to vest, aggregate intrinsic value $ 67.9    
Exercisable, number of units (in shares) 654,467    
Exercisable, PSU weighted-average granted date fair value (in dollars per share) $ 26.77    
Exercisable, Weighted-Average Remaining Contractual, PSU (Year) 3 years 1 month 6 days    
Exercisable, Aggregate Intrinsic Value, PSU $ 48.6