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Share-Based Compensation - Summary of Options Outstanding (Detail) - $ / shares
12 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares outstanding, total 547,199 598,043 622,083 679,044
Outstanding, Weighted Average Exercise Price $ 15.16      
Exercisable, Weighted Average Exercise Price $ 15.16      
Outstanding Remaining Contractual Life 3 years 8 months 12 days      
Number of shares exercisable, total 547,199      
Exercisable Remaining Contractual Life 3 years 8 months 12 days      
$5.00 - $10.00 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding Range of Exercise prices, Lower Limit $ 5      
Outstanding Range of Exercise prices, Upper Limit $ 10      
Outstanding, Number of shares 0      
Outstanding, Weighted Average Exercise Price $ 0      
Exercisable, Weighted Average Exercise Price $ 0      
Exercisable, Number of shares 0      
$10.01 - $15.00 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding Range of Exercise prices, Lower Limit $ 10.01      
Outstanding Range of Exercise prices, Upper Limit $ 15      
Outstanding, Number of shares 332,849      
Outstanding, Weighted Average Exercise Price $ 13.68      
Exercisable, Weighted Average Exercise Price $ 13.68      
Outstanding Remaining Contractual Life 2 years 10 months 24 days      
Exercisable, Number of shares 332,849      
Exercisable Remaining Contractual Life 2 years 10 months 24 days      
$15.01 - $20.00 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Outstanding Range of Exercise prices, Lower Limit $ 15.01      
Outstanding Range of Exercise prices, Upper Limit $ 20      
Outstanding, Number of shares 214,350      
Outstanding, Weighted Average Exercise Price $ 17.45      
Exercisable, Weighted Average Exercise Price $ 17.45      
Outstanding Remaining Contractual Life 4 years 9 months 18 days      
Exercisable, Number of shares 214,350      
Exercisable Remaining Contractual Life 4 years 9 months 18 days