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Retirement Benefit Plans Executive Plan (Details) - Supplemental Employee Retirement Plans, Defined Benefit - USD ($) $ in Thousands | Jan. 03, 2021 | Dec. 29, 2019
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Defined Benefit Plans and Other Postretirement Benefit Plans |  |
Liability, Defined Benefit Plan | $ 432 | $ 662
Deferred Compensation Arrangements, Recorded Liability | $ 1,108 | $ 774

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