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Goodwill and intangibles - Summary of Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
May 02, 2020 | Aug. 03, 2019 | Jan. 29, 2022 | Jan. 30, 2021 | Feb. 01, 2020
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance |  |  | $ 238.0 |  |
Impairment |  |  | 0.0 | $ (10.7) | $ (47.7)
Ending balance |  |  | 484.6 | 238.0 |
Accumulated impairment losses |  |  | 576.0 | 576.0 |
North America |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |
Beginning balance | $ 248.8 |  | 238.0 | 248.8 |
Impairment | $ (10.7) | $ (47.7) |  | (10.7) |
Acquisitions |  |  | 246.6 |  |
Impact of foreign exchange |  |  |  | (0.1) |
Ending balance |  |  | $ 484.6 | $ 238.0 | $ 248.8

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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