Pension and Other Postretirement Plans - Net Periodic Benefit Cost (Detail) - Pension Plans [Member] - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5,057	$ 3,578
Interest cost	3,918	4,498
Expected return on plan assets	(6,159)	(5,804)
Amortization of prior service credit	(21)	(15)
Amortization of net actuarial loss	3,398	1,544
Total benefit cost	6,193	3,801
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	571	484
Interest cost	262	421
Expected return on plan assets	(330)	(400)
Amortization of prior service credit	(74)	(76)
Amortization of net actuarial loss	734	428
Total benefit cost	$ 1,163	$ 857