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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Dec. 30, 2018
Jun. 27, 2020
Dec. 28, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets   $ 50,802 $ 54,408
Operating lease liability   $ 50,802 $ 54,408
ASU 2016-02      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets $ 57,500    
Operating lease liability 57,500    
Cumulative Effect, Period of Adoption, Adjustment | ASU 2016-02      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Gain associated with sale-leaseback transactions $ 1,700