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Benefit Plans - Contributions and Benefit Payments (Details) $ in Thousands | Dec. 28, 2019 USD ($)
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Pension Plan [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
2020 | $ 107,864
2021 | 2,815
2022 | 2,905
2023 | 2,998
2024 | 3,094
2025-2029 | 17,020
Total | 136,696
Other Postretirement Benefits Plan [Member] |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Company's expected contribution to benefit plans in next fiscal year | 1,000
2020 | 1,014
2021 | 959
2022 | 953
2023 | 1,053
2024 | 1,062
2025-2029 | 4,944
Total | $ 9,985

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