Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Oct. 31, 2017 USD ($) Employee	Oct. 31, 2016 USD ($)	Oct. 31, 2015 USD ($)	Apr. 28, 2017 USD ($)	Mar. 31, 2017 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Number of employees | Employee	14,669
Employees covered by collective bargaining agreements | Employee	1,840
Contractual obligations to purchase for feed grains, feed ingredients, and packaging supplies (due in less than one year)	$ 174,700,000
Total purchase obligation	36,200,000
Purchase obligation due in 2018	32,200,000
Purchase obligation due in 2019	4,000,000
Construction Expenditure Limitation | Revolving Credit Facility
Commitments and Contingencies Disclosure [Line Items]
Revolving credit facility, construction expenditure limitation				$ 135,000,000.0
Construction Expenditure Limitation | Revolving Credit Facility | Tyler, Texas
Commitments and Contingencies Disclosure [Line Items]
Revolving credit facility, construction expenditure limitation				$ 200,500,000.0	$ 200,500,000
Total purchase obligation	115,700,000
Property Subject to Operating Lease
Commitments and Contingencies Disclosure [Line Items]
Operating leases, rental expense	$ 17,000,000	$ 13,700,000	$ 11,600,000