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Accrued Expenses and Current Portion of Other Long-Term Liabilities (Narrative) (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Mar. 28, 2026 | Mar. 29, 2025 | Mar. 28, 2026 | Mar. 29, 2025 | Sep. 27, 2025
Accrued Expenses and Current Portion of Other Long-Term Liabilities [Abstract] |  |  |  |  |
Workers' compensation per occurrence covered under insurance cost | $ 1,000,000.0 |  | $ 1,000,000.0 |  |
Medical care benefits per person covered under insurance cost | 650,000 |  | 650,000 |  |
Self insurance liabilities | 36,000,000.0 |  | 36,000,000.0 |  | $ 38,300,000
Self insurance liabilities, current | 16,700,000 |  | 16,700,000 |  | 17,800,000
Self insurance liabilities, noncurrent | 19,300,000 |  | 19,300,000 |  | 20,500,000
Receivable for expected self-insurance recoveries from excess cost insurance | 3,200,000 |  | 3,200,000 |  | $ 3,300,000
Employee insurance expense | $ 11,300,000 | $ 12,000,000.0 | $ 23,200,000 | $ 23,200,000 |

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- Definition Carrying amount as of the balance sheet date of amounts expected to be recovered under the terms of insurance contracts. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(24)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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- Definition Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid within one year (or the normal operating cycle, if longer). + References No definition available. + Details
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- Definition Carrying amount of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property that are expected to be paid after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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