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Stock-Based Compensation - Additional Information (Details) - USD ($)
3 Months Ended
Apr. 04, 2013
Apr. 30, 2020
Apr. 30, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Compensation expense   $ 100,000 $ 200,000
Compensation expense, net of tax   22,000 100,000
Unrecognized compensation cost related to unvested stock options   0  
Cash received for stock option exercises   0 200,000
Stock options exercised   0  
Stock Award Units      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Compensation expense   1,100,000 1,100,000
Compensation expense, net of tax   400,000 $ 300,000
Unrecognized compensation cost   6,400,000  
Fair value of stock award units vested   $ 3,800,000  
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    
Stock awards cliff-vested period 3 years