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Summary of Significant Accounting Policies Prepaid expenses and OCA (Details) - USD ($)
$ in Millions
Jul. 31, 2021
Jan. 30, 2021
Aug. 01, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]      
Prepaid expense $ 23.4 $ 19.0 $ 18.8
Other current assets $ 46.1 $ 39.1 $ 40.2