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Stock-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Apr. 04, 2013
Jul. 31, 2021
Jul. 31, 2020
Jul. 31, 2021
Jul. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Stock options granted   0 0 201,875 0
Compensation expense   $ 400,000 $ 27,000 $ 700,000 $ 100,000
Unrecognized compensation cost related to unvested stock options   3,300,000   $ 3,300,000  
Weighted-average period       2 years 4 months 24 days  
Cash received for stock option exercises       $ 600,000 0
Fair value of stock options exercised       300,000  
Intrinsic value of stock options exercised       100,000  
Stock options exercised         0
Stock Award Units          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Compensation expense   900,000 1,500,000 $ 2,100,000 3,000,000.0
Weighted-average period       2 years  
Unrecognized compensation cost   $ 4,500,000   $ 4,500,000  
Fair value of stock award units vested       $ 7,200,000  
Stock Award Units | Corporate Initiatives          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Compensation expense     $ 400,000   $ 400,000
Performance-Based Stock Awards | Minimum          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of shares issued percentage of target number of underlying stock award units       0.00%  
Performance-Based Stock Awards | Maximum          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of shares issued percentage of target number of underlying stock award units       150.00%  
Employee Stock Option Plan          
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]          
Number of common stock shares 11,000,000        
Options granted to participants exercisable period 3 years