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Insurance - Narrative (Details) - USD ($)
$ in Millions
6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Schedule of Other Liabilities [Line Items]    
Insurance policy coverage, general and automobile liability losses $ 200.0  
Insurance policy coverage, property damage 75.0  
Decrease in total reserve claims 17.4 $ 6.6
Change in case reserves plus IBNR Claims — prior years 11.4  
Minimum    
Schedule of Other Liabilities [Line Items]    
Self insurance retention amount per-claim 1.0  
Primary policy limit 1.0  
Maximum    
Schedule of Other Liabilities [Line Items]    
Self insurance retention amount per-claim 1.5  
Primary policy limit 5.0  
Self insurance retention amount per-claim, medical plan $ 0.5