Pension and Other Postretirement Plans - Net Periodic Benefit Cost (Detail) - Pension Plans [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3,438	$ 3,104	$ 10,314	$ 9,346
Interest cost	3,580	3,180	10,739	9,635
Expected return on plan assets	(5,491)	(5,143)	(16,472)	(15,585)
Amortization of prior service cost (credit)	(5)	12	(17)	35
Amortization of net actuarial loss	2,353	2,366	7,059	7,150
Settlement loss		648		648
Total benefit cost	3,875	4,167	11,623	11,229
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	510	604	1,548	1,763
Interest cost	408	401	1,241	1,169
Expected return on plan assets	(379)	(334)	(1,152)	(978)
Amortization of prior service cost (credit)	(80)	(76)	(242)	(223)
Amortization of net actuarial loss	527	664	1,604	1,926
Total benefit cost	$ 986	$ 1,259	$ 2,999	$ 3,657