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Interest and Other Expense, Net - Interest and Other Expense, Net (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Interest and other expense, net      
Interest income $ (7,821) $ (4,822) $ (4,233)
Interest expense [1] 16,911 21,275 10,427
Foreign exchange loss [2] 16,720 1,110 3,382
Other, net 581 (6,766) 1,860
Total $ 26,391 $ 10,797 $ 11,436
[1] For further details, please see Note 12 to the consolidated financial statements.
[2] The Foreign exchange loss increase in fiscal year 2022 is primarily attributable to volatility of certain currencies’ exchange rates for which hedging the exposure through derivatives financial instruments was not cost effective as well as to the cost of executing our hedging policy through derivatives financial instruments.