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Restructuring and Other Related Charges - Schedule of Pre-tax Restructuring Charges (Detail) - Fire & Emergency [Member] - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
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Apr. 30, 2022 | Apr. 30, 2022
Restructuring Cost And Reserve [Line Items] |  |
Pre-tax restructuring charges | $ 2.9 | $ 6.6
Employee Severance and Termination Benefits [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Pre-tax restructuring charges | 1.3 | 4.1
Contract Termination and Other Costs [Member] |  |
Restructuring Cost And Reserve [Line Items] |  |
Pre-tax restructuring charges | $ 1.6 | $ 2.5

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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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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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