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Schedule II - Valuation and Qualifying Accounts for Deferred Income Tax Valuation Allowance Footnote (Details) $ in Millions | 12 Months Ended
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Oct. 31, 2018 USD ($)
SEC Schedule, 12-09, Valuation Allowance, Tax Credit Carryforward |
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] |
Valuation allowance from prior years | $ 16.5

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- Definition Amount of decrease in 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) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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