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Insurance - Narrative (Details) - USD ($)
3 Months Ended
Jan. 31, 2019
Jan. 31, 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 $ 2,000,000
Insurance reserve adjustment, amount less than prior year adjustment 3,000,000  
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 $ 400,000.0