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Retirement Plan - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Jan. 31, 2020
Compensation And Retirement Disclosure [Abstract]      
Employee contribution, percent of match 50.00%    
Employer contribution, percent of match 50.00%    
Employee maximum contribution percent of deferred salary amount 6.00%    
Vesting percentage 100.00%    
Matching contributions to the plan $ 0.7 $ 0.7 $ 0.7