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Share-Based Compensation - Schedule of Share Based Awards Issued and Weighted Average Fair Value (Detail)
6 Months Ended
Jul. 31, 2025
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Granted 605,086
Performance Stock Units (PSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Granted 84,051
Weighted Average Fair Value | $ / shares $ 56.77
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Awards Granted 521,035
Weighted Average Fair Value | $ / shares $ 57.38