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Summary of Company's Balance Sheet Related Pension and Other Postretirement Benefit Plan (Detail) - USD ($) $ in Thousands | Dec. 28, 2024 | Dec. 30, 2023
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Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract] |  |
Noncurrent benefit asset | $ 6,869 | $ 6,494
Current benefit liability | 703 | 699
Noncurrent benefit liability | 5,511 | 5,798
AOCI, net of tax | $ (257) | $ (342)

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