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Summary of Company's Condensed Consolidated Balance Sheets Related Pension and Other Postretirement Benefit Plan (Detail) - USD ($) $ in Thousands | Apr. 19, 2025 | Dec. 28, 2024
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Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract] |  |
Noncurrent benefit asset | $ 6,773 | $ 6,869
Current benefit liability | 703 | 703
Noncurrent benefit liability | 5,241 | 5,511
AOCI, net of tax | $ (348) | $ (257)

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