Insurance - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jul. 31, 2015	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Schedule of Other Liabilities [Line Items]
Self insurance retention amount per-claim		$ 1.0
Commercial insurance policies coverage		200.0
Insurance policy coverage, property damage		75.0
Self insured retention amount per participant per year for certain employee medical and dental programs		0.4
Increase in Total Reserve Claims		32.9	$ 35.9
Self-insurance reserve adjustments	$ 35.9	33.6	37.4	$ (8.7)
Insurance claim reserves		423.8	387.4
Estimated insurance recoveries		69.7	65.9
Minimum
Schedule of Other Liabilities [Line Items]
Insurance deductibles per occurrence		1.0
Maximum
Schedule of Other Liabilities [Line Items]
Insurance deductibles per occurrence		5.0
Medical and Dental Self Insurance Program
Schedule of Other Liabilities [Line Items]
Insurance claim reserves		$ 5.9	$ 8.1