Insurance - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended	9 Months Ended
	Jul. 31, 2016	Apr. 30, 2016	Jan. 31, 2016	Apr. 30, 2016	Jul. 31, 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	19,800,000	$ 6,000,000	$ 6,000,000	$ 12,000,000	31,800,000
Insurance claim reserves	422,600,000				422,600,000	$ 387,400,000
Medical and Dental Self Insurance Program
Schedule of Other Liabilities
Insurance claim reserves	6,700,000				6,700,000	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	$ 69,900,000				$ 69,900,000	$ 65,900,000