Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 54		$ 111
Domestic Plan [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	792	$ 820	1,584	$ 1,641
Expected return on plan assets	(840)	(864)	(1,680)	(1,728)
Amortization of net actuarial loss	328	377	656	754
Net periodic (benefit) cost	280	333	560	667
Pension Contributions			450
Domestic Plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	2	3	5	6
Expected return on plan assets	0	0	0	0
Amortization of net actuarial loss	2	2	4	5
Net periodic (benefit) cost	$ 4	$ 5	$ 9	$ 11