Derivatives - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Jan. 04, 2020	Sep. 28, 2019
Estimated unrealized gains, net of tax, expected to be reclassified in next 12 months	$ 1.6
Derivatives designated as hedging instruments \| Derivatives in Cash Flow Hedging Relationships \| Forward currency forward contracts
Notional amount of forward exchange contracts	79.8	$ 80.0
Fair value of derivative liability		0.6
Fair value of derivative asset	1.6
Derivatives not designated as hedging instruments \| Forward currency forward contracts
Notional amount of forward exchange contracts	17.2	34.4
Fair value of derivative asset	$ 0.1	$ 0.9

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Nominal or face amount used to calculate payments on the derivative asset.

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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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