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Basis of Presentation and Summary of Significant Accounting Policies New Accounting Standards (Details) - USD ($)
$ in Thousands
Sep. 26, 2020
Jun. 27, 2020
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
Dec. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Stockholders' Equity Attributable to Parent $ 2,395,718 $ 2,256,631 $ 2,102,894 $ 1,480,262 $ 1,430,545 $ 1,288,401
Retained Earnings            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Stockholders' Equity Attributable to Parent $ 2,176,595 $ 2,014,965 1,761,688 $ 1,102,013 $ 1,000,499 $ 772,709
Cumulative Effect, Period of Adoption, Adjustment [Member]            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Stockholders' Equity Attributable to Parent     (1,999)      
Cumulative Effect, Period of Adoption, Adjustment [Member] | Retained Earnings            
New Accounting Pronouncements or Change in Accounting Principle [Line Items]            
Stockholders' Equity Attributable to Parent     $ (1,999)