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Stock-Based Compensation - Additional Information (Detail)
$ in Millions
3 Months Ended
May 02, 2020
USD ($)
shares
May 04, 2019
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock unit vesting and settlement ratio to common shares 1  
Restricted-Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized compensation cost, net of estimated forfeitures, related to nonvested restricted stock units | $ $ 7.7  
Total unrecognized compensation cost, net of estimated forfeitures, related to nonvested restricted stock units, weighted-average period of recognition 2 years 3 months 18 days  
Time-based Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted-stock awards/units granted in period 810,000  
Performance-based Restricted Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted-stock awards/units granted in period 602,000  
Restricted stock units vesting period, years 3 years  
2010 Equity and Incentive Plan [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Issuance of common stock shares 6,076,001  
2010 Equity and Incentive Plan [Member] | Restricted-Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted-stock awards/units granted in period 1,412,024 407,264
Restricted-stock awards/units with an aggregate grant-date fair value | $ $ 5.8 $ 5.3
Non-Employee Director [Member] | Restricted-Stock Units [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Restricted stock units vesting period, years 1 year