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Summary of Significant Accounting Policies Prepaid Expenses and Other Current Assets (Details) - USD ($)
$ in Millions
Jan. 30, 2021
Feb. 01, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Prepaid Expense, Current $ 19.0 $ 17.2
Other Assets, Current $ 39.1 $ 58.7