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Pension and Other Postretirement Plans - Net Periodic Benefit Cost (Detail) - Pension Plans [Member] - USD ($)
$ in Thousands
3 Months Ended
Jan. 31, 2018
Jan. 31, 2017
United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 3,821 $ 3,058
Interest cost 3,500 3,211
Expected return on plan assets (5,491) (5,177)
Amortization of prior service cost (credit) (8) 12
Amortization of net actuarial loss 2,156 2,327
Total benefit cost 3,978 3,431
International [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 510 534
Interest cost 410 348
Expected return on plan assets (380) (285)
Amortization of prior service cost (credit) (80) (70)
Amortization of net actuarial loss 529 599
Total benefit cost $ 989 $ 1,126