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Pension and Other Post Retirement Benefit Plans - Schedule of Pension Plans Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 12 Months Ended
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Sep. 26, 2025 | Sep. 27, 2024 | Sep. 29, 2023
Reclassification adjustments: |  |  |
Total | $ 1,973 | $ 44,998 | $ 18,297
Pension Plan | U.S. Plans |  |  |
Arising during the period: |  |  |
Net actuarial losses (gains) | 3,965 | 1,576 | (4,032)
Total | 3,965 | 1,576 | (4,032)
Reclassification adjustments: |  |  |
Net actuarial (losses) gains | (1,104) | 1,031 | 1,335
Prior service benefit | (47) | (321) | (324)
Total | (1,151) | 710 | 1,011
Total | 2,814 | 2,286 | (3,021)
Pension Plan | Non-U.S. Plans |  |  |
Arising during the period: |  |  |
Net actuarial losses (gains) | 8,150 | 49,685 | 27,188
Total | 8,150 | 49,685 | 27,188
Reclassification adjustments: |  |  |
Net actuarial (losses) gains | (7,785) | (5,601) | (4,802)
Prior service benefit | (1,206) | (1,125) | (1,068)
Total | (8,991) | (6,726) | (5,870)
Total | $ (841) | $ 42,959 | $ 21,318

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- Definition Pension plan amounts recognized in accumulated other comprehensive income loss arising during period. + References No definition available. + Details
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- Definition Pension plan amounts recognized in accumulated other comprehensive income loss reclassification adjustments. + References No definition available. + Details
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- Definition Amount, after tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-11 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10A -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-10A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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