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Retirement Benefits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017
Retirement Benefits [Abstract] |  |  |
Stock contribution | $ 7,237 | $ 7,174 | $ 7,327
Cash contribution | 21,171 | 21,413 | 23,834
Total annual contribution | $ 28,408 | $ 28,587 | $ 31,161

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- Definition Defined Contribution Plan, Stock Contributions by Employer + References No definition available. + Details
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- References No definition available. + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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