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Retirement Plans (Fair Values of Qualified Plan's Assets) (Details) - USD ($) $ in Thousands	Sep. 29, 2024	Oct. 01, 2023
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 302,439	$ 275,143
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,933	3,266
Global equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40,193	30,879
Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	200,675	184,085
Alternative Investments Member
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,100	28,378
Real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,538	28,535
Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	184,920	165,445
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value Measured at Net Asset Value Per Share | Global equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	40,193	30,879
Fair Value Measured at Net Asset Value Per Share | Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	86,089	77,653
Fair Value Measured at Net Asset Value Per Share | Alternative Investments Member
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	32,100	28,378
Fair Value Measured at Net Asset Value Per Share | Real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	26,538	28,535
Quoted Prices in Active Markets for Identical (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
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) | Global equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical (Level 1) | Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical (Level 1) | Alternative Investments Member
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Quoted Prices in Active Markets for Identical (Level 1) | Real assets
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	117,519	109,698
Significant Other Observable Inputs (Level 2) | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,933	3,266
Significant Other Observable Inputs (Level 2) | Global equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Significant Other Observable Inputs (Level 2) | Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	114,586	106,432
Significant Other Observable Inputs (Level 2) | Alternative Investments Member
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Significant Other Observable Inputs (Level 2) | Real assets
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) | Global equity
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Significant Unobservable Inputs (Level 3) | Liability-hedging assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Significant Unobservable Inputs (Level 3) | Alternative Investments Member
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Significant Unobservable Inputs (Level 3) | Real assets
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

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+ References

No definition available.

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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