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Fair value measurements - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Recurring - USD ($)
$ in Thousands
Apr. 30, 2023
Oct. 31, 2022
Assets:    
Foreign currency forward contracts $ 8,897 $ 5,035
Total assets at fair value 8,897 5,035
Liabilities:    
Deferred compensation plans 11,437 9,076
Foreign currency forward contracts 3,417 11,724
Total liabilities at fair value 14,854 20,800
Level 1    
Assets:    
Foreign currency forward contracts 0 0
Total assets at fair value 0 0
Liabilities:    
Deferred compensation plans 0 0
Foreign currency forward contracts 0 0
Total liabilities at fair value 0 0
Level 2    
Assets:    
Foreign currency forward contracts 8,897 5,035
Total assets at fair value 8,897 5,035
Liabilities:    
Deferred compensation plans 11,437 9,076
Foreign currency forward contracts 3,417 11,724
Total liabilities at fair value 14,854 20,800
Level 3    
Assets:    
Foreign currency forward contracts 0 0
Total assets at fair value 0 0
Liabilities:    
Deferred compensation plans 0 0
Foreign currency forward contracts 0 0
Total liabilities at fair value $ 0 $ 0