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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, 2019	Oct. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	$ 21,645	$ 21,037
Assets held, end of year	913	862
Purchases	2,431	2,760
Sales	(4,102)	(2,501)
Foreign currency translation	358	(513)
Ending balance	21,245	21,645
Other Types of Investments Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	21,645	21,037
Assets held, end of year	913	862
Purchases	2,431	2,760
Sales	(4,102)	(2,501)
Foreign currency translation	358	(513)
Ending balance	$ 21,245	$ 21,645

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- Definition

Amount, measured using unobservable inputs, of increase (decrease) in plan assets of defined benefit plan from actual return (loss) on assets still held.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

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