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SCHEDULE II - VALULATION AND QUALIFYING ACCOUNTS (Detail) - Accounts receivable allowances - USD ($) $ in Millions | 12 Months Ended
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Oct. 31, 2024 | Oct. 31, 2023 | Oct. 31, 2022
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Balance Beginning of Year | $ 25.0 | $ 22.6 | $ 32.7
Additions from Acquisitions | 0.3 | 0.0 | 1.4
Charges to Costs and Expenses | 88.7 | 76.0 | 60.6
Write-offs/Allowance Taken | (91.3) | (73.6) | (72.1)
Balance End of Year | $ 22.8 | $ 25.0 | $ 22.6

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09(Column E)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-4 + Details
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