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Derivative financial instruments
9 Months Ended
Jul. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative financial instruments
Derivative financial instruments  
We operate internationally and enter into intercompany transactions denominated in foreign currencies. Consequently, we are subject to market risk arising from exchange rate movements between the dates foreign currency transactions occur and the dates they are settled. We regularly use foreign currency forward contracts to reduce our risks related to most of these transactions. These contracts usually have maturities of 90 days or less and generally require us to exchange foreign currencies for U.S. dollars at maturity, at rates stated in the contracts. These contracts are not designated as hedging instruments under U.S. GAAP. Accordingly, the changes in the fair value of the foreign currency forward contracts are recognized in each accounting period in “Other – net” on the Condensed Consolidated Statements of Income together with the transaction gain or loss from the related balance sheet position.
For the three months ended July 31, 2022, we recognized a net gain of $15,181 on foreign currency forward contracts and a net loss of $14,436 from the change in fair value of balance sheet positions. For the three months ended July 31, 2021, we recognized a net loss of $1,714 on foreign currency forward contracts and a net gain of $1,202 from the change in fair value of balance sheet positions. For the nine months ended July 31, 2022, we recognized a net gain of $2,503 on foreign currency forward contracts and a net loss of $394 from the change in fair value of balance sheet positions. For the nine months ended July 31, 2021, we recognized a net loss of $505 on foreign currency forward contracts and a net loss of $3,544 from the change in fair value of balance sheet positions. The fair values of our foreign currency forward contract assets and liabilities are included in Receivable-net and Accrued liabilities, respectively, in our Consolidated Balance Sheets.
The following table summarizes, by currency, the foreign currency forward contracts outstanding at July 31, 2022 and 2021:
 Notional Amounts
July 31, 2022 contract amounts:SellBuy
Euro$88,275 $333,285 
British pound36,779 78,942 
Japanese yen16,688 37,163 
Australian dollar278 9,426 
Hong Kong dollar 67,341 
Singapore dollar378 18,025 
Others26,012 98,113 
Total$168,410 $642,295 
 Notional Amounts
July 31, 2021 contract amounts:SellBuy
Euro$118,988 $337,817 
British pound27,861 86,778 
Japanese yen15,939 43,281 
Australian dollar934 10,462 
Hong Kong dollar283 37,556 
Singapore dollar458 18,448 
Others22,374 93,079 
Total$186,837 $627,421 
We are exposed to credit-related losses in the event of nonperformance by counterparties to financial instruments. These financial instruments include cash deposits and foreign currency forward contracts. We periodically monitor the credit ratings of these counterparties in order to minimize our exposure. Our customers represent a wide variety of industries and geographic regions. For the three and nine months ended July 31, 2022 and 2021, there were no significant concentrations of credit risk.