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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, 2019
Jan. 31, 2018
United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 3,578 $ 3,682
Interest cost 4,498 3,639
Expected return on plan assets (5,804) (5,491)
Amortization of prior service credit (15) (8)
Amortization of net actuarial loss 1,544 2,156
Total benefit cost 3,801 3,978
International [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 484 497
Interest cost 421 423
Expected return on plan assets (400) (380)
Amortization of prior service credit (76) (80)
Amortization of net actuarial loss 428 529
Total benefit cost $ 857 $ 989