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Derivative financial instruments (Tables)
6 Months Ended
Apr. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Outstanding Currency, Forward Exchange Contracts
The following table summarizes, by currency, the foreign currency forward contracts outstanding at April 30, 2022 and 2021:
 Notional Amounts
April 30, 2022 contract amounts:SellBuy
Euro$96,436 $337,291 
British pound38,478 80,853 
Japanese yen10,848 39,294 
Australian dollar295 9,269 
Hong Kong dollar7,727 55,666 
Singapore dollar198 17,899 
Others15,378 91,599 
Total$169,360 $631,871 
 Notional Amounts
April 30, 2021 contract amounts:SellBuy
Euro$127,660 $309,020 
British pound21,228 79,446 
Japanese yen12,228 38,648 
Australian dollar194 10,240 
Hong Kong dollar978 33,024 
Singapore dollar15 18,071 
Others11,886 92,869 
Total$174,189 $581,318