Components of Net Periodic Benefit Cost (Details) - USD ($)	3 Months Ended			6 Months Ended
	Apr. 30, 2019	Jan. 31, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension Contributions		$ 1,620,000
Domestic Plan [Member] | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost					$ 1,584,000
Expected return on plan assets					(1,680,000)
Defined Benefit Plan, Amortization of Gain (Loss)					(656,000)
Net periodic (benefit) cost					560,000
Domestic Plan [Member] | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost				$ 6,000	5,000
Expected return on plan assets				0	0
Defined Benefit Plan, Amortization of Gain (Loss)				(3,000)	(4,000)
Net periodic (benefit) cost				9,000	$ 9,000
UNITED STATES | Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 841,000		$ 792,000	1,682,000
Expected return on plan assets	(835,000)		(840,000)	(1,670,000)
Defined Benefit Plan, Amortization of Gain (Loss)	(286,000)		(328,000)	(573,000)
Net periodic (benefit) cost	292,000		280,000	$ 585,000
UNITED STATES | Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	3,000		2,000
Expected return on plan assets			0
Defined Benefit Plan, Amortization of Gain (Loss)	(2,000)		(2,000)
Net periodic (benefit) cost	$ 5,000		$ 4,000