Retirement, Pension and Other Postretirement Plans - Changes in Level 3 plan assets (Detail) - Level 3 [Member] - Pension Plans [Member] - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 20,927	$ 20,432
Assets held, end of year	(412)	1,683
Purchases	2,330	2,799
Sales	(2,502)	(2,140)
Foreign currency translation	694	(1,847)
Ending balance	21,037	20,927
Other Types of Investments Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	20,927	20,432
Assets held, end of year	(412)	1,683
Purchases	2,330	2,799
Sales	(2,502)	(2,140)
Foreign currency translation	694	(1,847)
Ending balance	$ 21,037	$ 20,927