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Accounts Receivable - Textual (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Dec. 30, 2017
Accounts Receivable (Additional Textual) [Abstract]          
Sold receivables amount $ 11,600,000 $ 4,200,000 $ 33,500,000 $ 9,400,000  
Due from unrelated third parties $ 0   $ 0   $ 0
Minimum [Member]          
Accounts Receivable (Textual) [Abstract]          
Administrative fees as well as interest percent     0.62%    
Maximum [Member]          
Accounts Receivable (Textual) [Abstract]          
Administrative fees as well as interest percent     1.68%