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Employee Benefit Plans - Additional Information (Details) | 12 Months Ended
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Sep. 28, 2024 USD ($) Member | Sep. 30, 2023 USD ($) | Sep. 24, 2022 USD ($)
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Settlement charge | $ 638,000 | $ 0 | $ 840,000
Estimated obligation due to withdrawal multi employer pension plans | 20,026,000 | 21,398,000 |
Health and Welfare Benefits and Defined Annuity Plans [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Contributions | $ 892,000 | 881,000 | 1,045,000
United States [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Percentage threshold of the greater of projected benefit obligation and market-related value plan assets as unrecognized actuarial gains and losses (in hundredths) | 10.00% |  |
Pension Benefits [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Contributions for defined benefit pension plan | $ 4,000,000 | 4,000,000 | 3,330,000
Number of members on the Benefits Committee | Member | 5 |  |
Defined benefit plan expected future benefit payments | $ 4,000,000 |  |
Pension settlement payments to either terminated or retired individuals | 3,917,000 | 2,639,000 | 3,332,000
Settlement threshold amount | 3,129,000 | 3,306,000 | 2,459,000
Settlement charge | 638,000 | 0 | 840,000
Retiree Health and Life Benefits [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Contributions for defined benefit pension plan | 322,000 | 412,000 |
Pension settlement payments to either terminated or retired individuals | 0 | 0 |
Settlement charge | $ 0 | 0 | 0
Percentage of sensitivity increase or decrease of assumed health care cost trend rates (in hundredths) | 1.00% |  |
Maximum [Member] | Pension Benefits [Member] | Fixed income securities [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Allocation percentage of plan assets (in hundredths) | 90.00% |  |
Maximum [Member] | Pension Benefits [Member] | Equity securities [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Allocation percentage of plan assets (in hundredths) | 20.00% |  |
Minimum [Member] | Pension Benefits [Member] | Fixed income securities [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Allocation percentage of plan assets (in hundredths) | 80.00% |  |
Minimum [Member] | Pension Benefits [Member] | Equity securities [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Allocation percentage of plan assets (in hundredths) | 10.00% |  |
Retiree Health and Life Benefits [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Employer contribution match amount | $ 0.50 |  |
Contribution costs to the 401(k) Plan | $ 4,280,000 | $ 4,493,000 | $ 4,059,000
Retiree Health and Life Benefits [Member] | Maximum [Member] |  |  |
Deferred Compensation Arrangement With Individual Postretirement Benefits [Line Items] |  |  |
Eligible compensation match percentage | 6.00% |  |

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