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Income Taxes (Narrative) (Details) - USD ($)
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Income Taxes [Abstract]      
Effective tax rate (in hundredths) 23.40% 20.00% 49.10%
Effective tax rate without the effect of income tax expense (as a percent)     26.40%
Effect of Tax Cuts and Jobs Act [Abstract]      
Tax on global intangible low-taxed income ("GILTI") $ 3,917,000 $ 7,599,000 $ 0
Revaluation of deferred tax assets and liabilities 0 (1,676,000) 2,953,000
Provision for (benefit from) transitional tax 0 (10,000,000) 140,000,000
Tax Cuts and Jobs Act, Transition Tax for Accumulated Foreign Earnings, Liability, Current $ 9,900,000 94,900,000 104,200,000
Tax Cuts and Jobs Act, Accounting Complete [true false] true    
Tax Cuts and Jobs Act, Accounting Complete, Date Dec. 29, 2018    
Unrecognized tax benefits $ 109,100,000    
Unrecognized tax benefits that would affect the effective tax rate if recognized 91,200,000    
Total interest 18,000,000.0 15,600,000  
Total penalties 0 0 0
Internal Revenue Service (IRS) [Member]      
Income Tax Examination [Line Items]      
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority $ 2,200,000 $ 3,600,000 $ (2,900,000)