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Derivative Financial Instruments (Derivatives Not Designated as Cash Flow Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain	$ 375	$ 311
General and Administrative Expense
Derivatives, Fair Value [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Gain	375	$ 311
Significant Other Observable Inputs (Level 2) \| Fair Value, Measurements, Recurring \| Not Designated as Hedging Instrument \| Other Current Liabilities
Derivatives, Fair Value [Line Items]
Foreign currency forward contracts	29		$ 0
Significant Other Observable Inputs (Level 2) \| Fair Value, Measurements, Recurring \| Total Return Swap \| Not Designated as Hedging Instrument \| Accrued expenses and other current liabilities
Derivatives, Fair Value [Line Items]
Liability Derivatives	153		632
Significant Other Observable Inputs (Level 2) \| Fair Value, Measurements, Recurring \| Foreign currency forward contracts \| Not Designated as Hedging Instrument \| Prepaid and other current assets
Derivatives, Fair Value [Line Items]
Asset Derivatives	$ 0		$ 40