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Stock-Based Compensation Plans - Summary of CRSU Plan Activity (Details) - shares
 6 Months Ended 12 Months Ended
Jul. 31, 2022
Jan. 31, 2022
Stock-Based Compensation Plans    
Weighted-Average Remaining Contractual Life, CRSU (Year) 1 year 7 months 6 days 1 year 4 months 24 days
Number of Units Granted, CRSU (in shares) 7,948  
Number of Units Vested and settled in cash, CRSU (in shares) (9,463)  
Number of Units Forfeited, CRSU (in shares) (74)  
Number of Units Outstanding, CRSU (in shares) 22,839 24,428
Non-vested, CRSU (in shares) 22,839  
Non-vested, Weighted-Average Remaining Contractual Life, CRSU (Year) 1 year 7 months 6 days