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Income Taxes - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) - USD ($) $ in Millions | 12 Months Ended
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Dec. 27, 2025 | Dec. 28, 2024 | Dec. 30, 2023
Income Tax Disclosure [Abstract] |  |  |
Unrecognized tax benefits—beginning of year | $ 25.2 | $ 25.6 | $ 33.4
Gross additions—current year tax positions | 1.9 | 1.9 | 2.1
Gross additions—prior year tax positions | 0.3 | 5.7 | 0.2
Gross reductions—prior year tax positions | (6.3) | (8.0) | (10.1)
Gross reductions—settlements with taxing authorities | 0.0 | 0.0 | 0.0
Unrecognized tax benefits—end of year | $ 21.1 | $ 25.2 | $ 25.6

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