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Revenue recognition - Narrative (Details) - Extended Service Plans and Lifetime Warranty Agreements - USD ($) $ in Millions | 12 Months Ended
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Feb. 03, 2024 | Jan. 28, 2023 | Jan. 29, 2022
Disaggregation of Revenue [Line Items] |  |  |
Capitalized contract cost, amortization | $ 44.4 | $ 43.7 | $ 41.7
North America |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revenue, performance obligation, description of timing | 13 years |  |

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- Definition Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 340 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479483/340-40-50-3 + Details
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