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Accounts receivable, net - Credit Quality of Finance Receivables (Details) - USD ($) $ in Millions | Jan. 30, 2021 | Oct. 31, 2020
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Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total at amortized cost | $ 97.5 | $ 54.2
Near Prime |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total at amortized cost | 46.6 | 26.4
Subprime |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total at amortized cost | 38.9 | 21.8
Deep Subprime |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total at amortized cost | $ 12.0 | $ 6.0

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- Definition Amount of financing receivable originated in fiscal year prior to current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919232-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |