Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Details)

v3.20.4
Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 01, 2020
Feb. 02, 2019
Jan. 30, 2021
Feb. 01, 2020
Feb. 02, 2019
Income Tax Contingency [Line Items]          
Goodwill impairment     $ 0.0 $ 313.0 $ 2,727.0
Operating loss carryforward, credit carryforward and capital loss carryforward     95.5    
Valuation allowance $ 18.5   16.8 18.5  
Unrecognized tax benefits 28.9 $ 35.4 22.6 $ 28.9 $ 35.4
Unrecognized tax benefits that, if recognized, would affect the effective tax rate     17.9    
Liability for potential interest and penalties     2.6    
Minimum          
Income Tax Contingency [Line Items]          
Decrease in unrecognized tax benefits is reasonably possible     6.0    
Maximum          
Income Tax Contingency [Line Items]          
Decrease in unrecognized tax benefits is reasonably possible     $ 7.0    
Family Dollar          
Income Tax Contingency [Line Items]          
Goodwill impairment $ 313.0 $ 2,730.0