Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Sep. 30, 2019
Gross Amount of Recognized Liabilities	$ 1,694
Gross Amount of Recognized Assets	757
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 0	$ 200
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer	3 months
Forward Contracts \| Not Designated as Hedging Instrument
Derivative, Remaining Maturity	7 months
Forward Contracts \| Designated as Hedging Instrument
Gross Amount of Recognized Liabilities	$ 663		$ 0
Gross Amount of Recognized Assets	$ 0		$ 1,674
Net Investment Hedging \| Forward Contracts \| Designated as Hedging Instrument
Derivative, Remaining Maturity	3 months

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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-Topic 860
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Estimated period for the anticipated transfer of gain (loss), net, from accumulated other comprehensive income into earnings, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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