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Retirement Plans - Expected Benefit Payments (Detail) $ in Millions | Dec. 28, 2019 USD ($)
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Retirement Benefits [Abstract] |
2020 | $ 15.7
2021 | 16.3
2022 | 17.0
2023 | 17.7
2024 | 18.5
2025-2028 | $ 102.6

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