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Retirement Plans (Fair Values of Qualified Plan's Assets) (Details) - USD ($) $ in Thousands | Oct. 02, 2022 | Oct. 03, 2021
--- | --- | ---
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 303,951 | $ 409,708
Cash and cash equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 2,267 | 1,969
Domestic equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 33,659 | 66,921
International equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 32,807 | 63,087
Investment grade |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 193,426 | 219,295
High yield |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 6,970 | 10,156
Alternatives |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 12,061 | 26,519
Real estate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 22,761 | 21,761
Quoted Prices in Active Markets for Identical (Level 1) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 77,324 | 128,906
Quoted Prices in Active Markets for Identical (Level 1) | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Quoted Prices in Active Markets for Identical (Level 1) | Domestic equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 33,659 | 66,921
Quoted Prices in Active Markets for Identical (Level 1) | International equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 16,557 | 31,128
Quoted Prices in Active Markets for Identical (Level 1) | Investment grade |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 20,138 | 20,701
Quoted Prices in Active Markets for Identical (Level 1) | High yield |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 6,970 | 10,156
Quoted Prices in Active Markets for Identical (Level 1) | Alternatives |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Quoted Prices in Active Markets for Identical (Level 1) | Real estate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Other Observable Inputs (Level 2) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 175,555 | 200,563
Significant Other Observable Inputs (Level 2) | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 2,267 | 1,969
Significant Other Observable Inputs (Level 2) | Domestic equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Other Observable Inputs (Level 2) | International equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Other Observable Inputs (Level 2) | Investment grade |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 173,288 | 198,594
Significant Other Observable Inputs (Level 2) | High yield |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Other Observable Inputs (Level 2) | Alternatives |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Other Observable Inputs (Level 2) | Real estate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Cash and cash equivalents |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Domestic equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | International equities |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Investment grade |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | High yield |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Alternatives |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | 0 | 0
Significant Unobservable Inputs (Level 3) | Real estate |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Fair value of plan assets | $ 0 | $ 0

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