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Derivative Financial Instruments - Narrative (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2018 agreement | Jun. 28, 2020 USD ($) instrument | Sep. 29, 2019 USD ($) instrument
Derivatives not designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Number of instruments held | instrument |  | 0 | 0
Interest rate swap agreements | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Number of derivative agreements | agreement | 5 |  |
Notional amount |  | $ 231,300 |
Fixed rate |  | 2.79% |
Gain (loss) to be reclassified during next twelve months |  | $ 5,800 |
Interest rate swap agreements | Designated as cash flow hedges | Derivatives designated as hedging instruments | Other current liabilities |  |  |
Derivative [Line Items] |  |  |
Fair value of interest rate swap agreements |  | (16,600) | $ (10,873)
Interest Rate Swap 1 | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | 46,300 |
Interest Rate Swap 2 | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | 46,300 |
Interest Rate Swap 3 | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | 46,300 |
Interest Rate Swap 4 | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | 46,300 |
Interest Rate Swap 5 | Designated as cash flow hedges | Derivatives designated as hedging instruments |  |  |
Derivative [Line Items] |  |  |
Notional amount |  | $ 46,300 |

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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
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- Definition 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. + References No definition available. + Details
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- Definition The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994 + Details
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