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Stock-Based Compensation and Other Long-Term Performance Incentives (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 45 Months Ended
Jul. 31, 2020
Aug. 02, 2019
Jul. 31, 2020
Aug. 02, 2019
Jan. 31, 2020
Restricted Stock Units (RSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Awards issued (in shares) 45,300 114,728 2,473,657 1,273,004  
Restricted Stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Awards issued (in shares) 0 0 454,546 175,000  
Restricted Stock and Restricted Stock Units          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period 3 years 3 years 3 years 3 years  
Percentage of grants issued subject to performance conditions     17.00% 50.00%  
Performance Cash Awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting period 3 years   3 years   3 years
Awards granted $ 0.1 $ 0.1 $ 8.2 $ 7.0  
Compensation expense $ 1.6 $ 2.1 $ 3.2 $ 3.9