Schedule II - Valuation and Qualifying Accounts for Deferred Income Tax Valuation Allowance Footnote (Details) $ in Millions |
12 Months Ended |
---|---|
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 |