Forward Currency Contracts - Summary of Average Outstanding Daily Volume for Forward Currency Contract (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Foreign exchange
Open Forward Foreign Currency Contract [Line Items]
Average U.S. Dollar notional outstanding	$ 154,660	$ 169,030

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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