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Goodwill and Other Intangible Assets (Details) - USD ($)
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Sep. 29, 2016
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Goodwill [Line Items]            
Goodwill, Acquired During Period     $ 82,900,000 $ 0 $ 84,159,000  
Goodwill, Purchase Accounting Adjustments       (1,225,000) 0  
Goodwill, Impairment Loss       0 0  
Impairment of Intangible Assets, Finite-lived       0    
Goodwill $ 93,192,000 $ 94,417,000   $ 93,192,000 $ 94,417,000 $ 10,258,000
Indefinite-lived Intangible Assets Acquired $ 31,300,000 $ 31,300,000 $ 31,300,000