Derivative Financial Instruments - Fair Value (Details) - USD ($) $ in Thousands	Jun. 28, 2020	Sep. 29, 2019
Interest rate swap agreements \| Other current liabilities \| Derivatives designated as hedging instruments \| Designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 16,600	$ 10,873

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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