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Goodwill and Intangibles - Narrative (Details) - USD ($) $ in Millions |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 29, 2021 | Jul. 30, 2022 | Jan. 29, 2022 | Nov. 17, 2021 | Jul. 31, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  | $ 486.4 | $ 484.6 |  | $ 245.1
Diamonds Direct |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  |  | $ 243.8 |
Diamonds Direct | Trade names |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  |  | $ 126.0 |
North America |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Acquisitions |  | 1.8 |  |  |
Goodwill |  | $ 486.4 | $ 484.6 |  |
North America | Rocksbox |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |
Definite-lived intangible assets acquired | $ 11.6 |  |  |  |
Acquisitions | $ 4.6 |  |  |  |
Acquired finite-lived intangible assets, weighted average useful life | 8 years |  |  |  |

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