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Schedule II - Valuation and Qualifying Accounts (Detail) - Accounts receivable allowances - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2021 | Oct. 31, 2020 | Oct. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance Beginning of Year | $ 35.5 | $ 22.4 | $ 19.2
Additions from Able Acquisition | 1.3 | 0.0 | 0.0
Charges to Costs and Expenses | 44.3 | 96.3 | 87.7
Write-offs/Allowance Taken | (48.4) | (83.2) | (84.6)
Balance End of Year | $ 32.7 | $ 35.5 | $ 22.4

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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