v3.20.1
Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($)
$ in Millions
12 Months Ended
Feb. 01, 2020
Feb. 02, 2019
Feb. 03, 2018
Property, Plant and Equipment [Abstract]      
Land $ 18.0 $ 18.7  
Buildings And Leasehold Improvements 611.8 638.2  
Fixtures and Equipment, Gross 836.2 900.2  
Property, Plant and Equipment, Gross 1,466.0 1,557.1  
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment (1,190.1) (1,235.8)  
Property and equipment, net 275.9 321.3 $ 351.0
Property, Plant and Equipment [Line Items]      
Impairment of Long-Lived Assets Held-for-use   2.1 2.8
Depreciation $ 90.8 96.7 110.1
Furniture, Fixtures and Equipment | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 2 years    
Furniture, Fixtures and Equipment | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 10 years    
Leasehold Improvements | Minimum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 1 year    
Leasehold Improvements | Maximum      
Property, Plant and Equipment [Line Items]      
Estimated useful lives 10 years    
Fair Value, Measurements, Nonrecurring      
Property, Plant and Equipment [Line Items]      
Impairment of Long-Lived Assets Held-for-use $ 6.6 $ 2.1 $ 2.8