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Significant Accounting Policies (Investments) (Details) - USD ($) $ in Millions | Dec. 28, 2019 | Dec. 29, 2018
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Cost method investments | $ 0.5 | $ 0.5

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- Definition Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments. + References No definition available. + Details
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