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Goodwill and Intangibles - Narrative (Details) - USD ($) $ in Millions |  |  |  | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 19, 2022 | Nov. 17, 2021 | Mar. 29, 2021 | Oct. 29, 2022 | Jan. 29, 2022 | Oct. 30, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  |  |  | $ 752.3 | $ 484.6 | $ 245.0
Diamonds Direct |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  | $ 251.2 |  |  |  |
Diamonds Direct | Trade names |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Indefinite-lived intangible assets acquired |  | 126.0 |  |  |  |
Blue Nile |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill | $ 258.5 |  |  |  |  |
North America |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquisitions |  |  |  | 267.7 |  |
Goodwill |  |  |  | $ 752.3 | $ 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 |  |  |
North America | Diamonds Direct |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Goodwill |  | 251.2 |  |  |  |
North America | Diamonds Direct | Trade names |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Indefinite-lived intangible assets acquired |  | $ 126.0 |  |  |  |
North America | Blue Nile |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Acquisitions | 258.5 |  |  |  |  |
Indefinite-lived intangible assets acquired | $ 102.0 |  |  |  |  |

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