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Summary of Significant Accounting Policies (Details) - USD ($)
$ in Thousands
Jun. 29, 2019
Jan. 01, 2019
Dec. 29, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets $ 55,240   $ 0
Operating lease liability 55,362    
Cumulative impact, deferred gains   $ 1,291  
ASU 2016-02      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Operating lease assets   57,500  
Operating lease liability   57,500  
Cumulative impact, deferred gains   $ 1,700  
Accounts Payable      
New Accounting Pronouncements or Change in Accounting Principle [Line Items]      
Outstanding checks and electronic payments $ 37,100   $ 17,400