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Goodwill and Intangibles - Additional Information (Details) - USD ($) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Feb. 02, 2019 | May 05, 2018 | Feb. 02, 2019 | Feb. 03, 2018 | Jan. 28, 2017 | Sep. 12, 2017
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill | $ 296,600,000 |  | $ 296,600,000 | $ 821,700,000 | $ 517,600,000 |
Goodwill and intangible impairments |  | $ 448,700,000 | 735,400,000 | 0 | 0 |
Goodwill, impairment loss |  | 286,700,000 | (521,200,000) | 0 |  |
Amortization of intangible assets |  |  | 4,000,000 | 9,300,000 | 13,800,000 |
Amortization of intangible liabilities |  |  | 7,900,000 | 13,000,000 | 19,700,000 |
R2Net Inc. |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  |  |  |  | $ 299,100,000
North America |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill | 296,600,000 |  | 296,600,000 | 818,100,000 | 514,000,000 |
Goodwill and intangible impairments |  |  | 731,800,000 | $ 52,700,000 | $ 160,400,000 |
Goodwill, impairment loss | 208,800,000 | 308,800,000 | $ (517,600,000) |  |  |
Impairment of intangible assets (excluding goodwill) | 74,300,000 | $ 139,900,000 |  |  |  |
Other |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill, impairment loss | $ 3,600,000 |  |  |  |  |

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