Accrued expenses (Detail) - USD ($) $ in Thousands	Oct. 31, 2017	Oct. 31, 2016
Payables and Accruals [Abstract]
Accrued bonuses	$ 36,028	$ 441
Workers’ compensation claims	8,351	7,971
Accrued wages	11,574	8,415
Accrued rebates	6,753	6,761
Accrued vacation	8,223	6,721
Accrued property taxes	9,318	8,710
Accrued payroll taxes	11,383	9,209
Other accrued expenses	9,538	9,690
Accrued expenses, total	$ 101,168	$ 57,918