Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
May 01, 2021
May 02, 2020
Valuation Allowance [Line Items]    
Effective income tax rate 0.20% (4.00%)
Valuation allowance $ 10.0  
Tax benefit related to CARES Act   $ 19.5
Previously Recognized Deferred Tax Assets    
Valuation Allowance [Line Items]    
Valuation allowance   54.3
State And Local Income Taxes And Other Tax Credits    
Valuation Allowance [Line Items]    
Valuation allowance   $ 6.8