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Insurance - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Apr. 30, 2016
Jan. 31, 2016
Apr. 30, 2016
Oct. 31, 2015
Schedule of Other Liabilities        
Self insurance retention amount per-claim $ 1,000,000   $ 1,000,000  
Insurance policy coverage, general liability losses 200,000,000   200,000,000  
Insurance policy coverage, property damage 75,000,000   75,000,000  
Change in insurance claims 6,000,000 $ 6,000,000 12,000,000  
Insurance claim reserves 394,800,000   394,800,000 $ 387,400,000
Medical and Dental Self Insurance Program        
Schedule of Other Liabilities        
Insurance claim reserves 7,500,000   7,500,000 8,100,000
Minimum        
Schedule of Other Liabilities        
Primary policy limit 1,000,000   1,000,000  
Maximum        
Schedule of Other Liabilities        
Primary policy limit 5,000,000   5,000,000  
Self insurance retention amount per-claim 400,000.0   400,000.0  
Other Assets        
Schedule of Other Liabilities        
Insurance recoverables $ 66,000,000   $ 66,000,000 $ 65,900,000