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Pension Plans and Other Postretirement Benefits - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 24, 2023 | Jun. 25, 2022 | Jun. 24, 2023 | Jun. 25, 2022 | Sep. 24, 2022
Components of net periodic benefit costs included in operating expenses [Abstract] |  |  |  |  |
Contribution to defined pension benefit plan |  |  | $ 3,000 | $ 2,220 |
Pension settlement charge |  |  | 0 | 634 |
Estimated obligation due to full withdrawal multi employer pension plans | $ 21,675 |  | 21,675 |  | $ 22,496
Pension Plans Defined Benefit [Member] |  |  |  |  |
Components of net periodic benefit costs included in operating expenses [Abstract] |  |  |  |  |
Defined benefit plan expected future benefit payments | 4,000 |  | 4,000 |  |
Pension settlement charge | 0 | $ 634 | 0 | $ 634 |
Pension Plans Defined Benefit [Member] | Other, Net [Member] |  |  |  |  |
Components of net periodic benefit costs included in operating expenses [Abstract] |  |  |  |  |
Contribution to defined pension benefit plan |  |  | 3,000 |  |
Post-Retirement Benefits [Member] |  |  |  |  |
Components of net periodic benefit costs included in operating expenses [Abstract] |  |  |  |  |
Defined benefit plan expected future benefit payments | $ 627 |  | 627 |  |
Post-Retirement Benefits [Member] | Other, Net [Member] |  |  |  |  |
Components of net periodic benefit costs included in operating expenses [Abstract] |  |  |  |  |
Employer contribution for postretirement health care and life insurance |  |  | $ 329 |  |

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- Definition Amount of contributions received and expected to be received by defined benefit plan from employer in current fiscal year. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-18 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org//1943274/2147480535/715-20-45-3A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (h)(7) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a)(7) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-6 + Details
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- Definition Amount of cash outflow for pension benefit. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. Excludes other postretirement benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-25 + Details
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