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Share-Based Compensation - Summary of Stock Option Activity (Detail) - Employee Stock Option - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Awards outstanding at beginning of year, Shares 140,000  
Exercised, Shares (60,000)  
Awards outstanding at end of year, Shares 80,000 140,000
Awards outstanding fully vested and expected to vest, Shares 80,000  
Awards exercisable at end of year, Shares 80,000  
Awards outstanding at beginning of year, Weighted Average Exercise Price $ 28.81  
Exercised, Weighted Average Exercise Price 20.45  
Awards outstanding at end of year, Weighted Average Exercise Price 35.08 $ 28.81
Awards outstanding fully vested and expected to vest, Weighted Average Exercise Price 35.08  
Awards exercisable at end of year, Weighted Average Exercise Price $ 35.08  
Awards outstanding at end of year, Weighted Average Remaining Contractual Term (years) 9 months 18 days 1 year 6 months
Awards outstanding fully vested and expected to vest, Weighted Average Remaining Contractual Term (years) 9 months 18 days  
Awards exercisable at end of year, Weighted Average Remaining Contractual Term (years) 9 months 18 days  
Awards outstanding, Aggregate Intrinsic Value $ 1,627 $ 1,623
Awards outstanding fully vested and expected to vest, Aggregate Intrinsic Value 1,627  
Awards exercisable at end of year, Aggregate Intrinsic Value $ 1,627