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Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Amortization Expense on Other Intangible Assets (Detail) | 12 Months Ended
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Oct. 31, 2017
Minimum | Trade names |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 10 years
Minimum | Non-competes |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 1 year
Minimum | Customer relationships |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 5 years
Minimum | Other intangibles |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 3 years
Maximum | Trade names |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 15 years
Maximum | Non-competes |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 10 years
Maximum | Customer relationships |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 25 years
Maximum | Other intangibles |
Finite-Lived Intangible Assets [Line Items] |
Useful life | 20 years

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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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- Details
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