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Income Taxes - Schedule of Components of Net Deferred Tax Assets (Details) - USD ($) $ in Thousands | Sep. 26, 2025 | Sep. 27, 2024
--- | --- | ---
Deferred tax assets: |  |
Other employee benefit plans | $ 112,906 | $ 110,377
Net operating losses | 207,377 | 259,335
Foreign tax credit | 38,989 | 42,394
Capitalized research costs | 184,394 | 112,652
Lease liability | 78,386 | 93,488
Unrealized foreign exchange loss | 11,244 | 11,891
Other | 32,693 | 10,178
Valuation allowance | (193,050) | (217,397)
Gross deferred tax assets | 472,939 | 422,918
Deferred tax liabilities: |  |
Depreciation and amortization | (211,627) | (243,234)
Lease right of use asset | (37,078) | (41,817)
Defined benefit pension plans | (16,102) | (4,540)
Hedge investments | (12,259) | (13,862)
Unrealized foreign exchange gain | (947) | (12,598)
Other | (20,933) | (28,116)
Gross deferred tax liabilities | (298,946) | (344,167)
Net deferred tax assets | $ 173,993 | $ 78,751

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