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Goodwill and intangibles - Narrative (Details) - North America - USD ($) $ in Millions |  | 3 Months Ended
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Aug. 19, 2022 | Apr. 29, 2023
Finite-Lived Intangible Assets [Line Items] |  |
Acquisitions |  | $ (0.3)
Blue Nile |  |
Finite-Lived Intangible Assets [Line Items] |  |
Intangible assets | $ 96.0 |
Acquisitions | $ 257.6 |

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 55 -Paragraph 24 -URI https://asc.fasb.org/extlink&oid=122137925&loc=d3e14258-109268 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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