Commitments and Contingencies - Additional Information (Detail) - USD ($)	Apr. 11, 2013	Aug. 01, 2012	Jul. 31, 2012	May. 17, 2012	Oct. 31, 2015	Oct. 31, 2014
Loss Contingencies [Line Items]
Surety bonds					$ 407,100,000
Total letters of credit					112,900,000	$ 114,900,000
Total guarantees					$ 91,100,000	$ 39,300,000
Ownership percentages					33.00%
Loss contingency amount accrued for probable losses					$ 8,600,000
Amount of reasonably possible losses, Minimum					0
Amount of reasonably possible losses, Maximum					6,000,000
Effective date starting after October 31, 2013
Loss Contingencies [Line Items]
Surety bonds					6,700,000
Augustus
Loss Contingencies [Line Items]
Payment awarded to plaintiffs		$ 4,500,000	$ 89,700,000
Percent of plaintiff payment awards		30.00%
Bojorquez
Loss Contingencies [Line Items]
Payment awarded to plaintiffs	$ 2,500,000			$ 800,000
Parental [Member]
Loss Contingencies [Line Items]
Total guarantees					$ 35,000,000