Asset Impairments (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Oct. 31, 2020 |
Nov. 02, 2019 |
|
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of tangible assets | $ 10.2 | $ 0.7 |
| Store-Related Fixed Assets | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of tangible assets | 10.2 | 0.7 |
| Premium Fashion | Store-Related Fixed Assets | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of tangible assets | 5.3 | 0.2 |
| Plus Fashion | Store-Related Fixed Assets | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of tangible assets | 1.9 | 0.2 |
| Kids Fashion | Store-Related Fixed Assets | ||
| Impaired Long-Lived Assets Held and Used [Line Items] | ||
| Impairment of tangible assets | $ 3.0 | $ 0.3 |