Insurance - Narrative (Details) - USD ($)	6 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Schedule of Other Liabilities [Line Items]
Self insurance retention amount per-claim	$ 1,000,000
Insurance policy coverage, general and automobile liability losses	200,000,000
Insurance policy coverage, property damage	75,000,000
Change in reserves for insurance claims	5,000,000	$ 4,000,000
Insurance reserve adjustment, amount higher than prior year adjustment	1,000,000
Minimum
Schedule of Other Liabilities [Line Items]
Primary policy limit	1,000,000
Maximum
Schedule of Other Liabilities [Line Items]
Primary policy limit	5,000,000
Self insurance retention amount per-claim, medical plan	$ 500,000.0