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Receivables, Net (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 24, 2016
Sep. 26, 2015
Sep. 24, 2016
Sep. 26, 2015
Dec. 26, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]          
Customers, trade $ 45,060   $ 45,060   $ 46,110
Other receivables 2,710   2,710   5,166
Gross receivables 47,770   47,770   51,276
Less: allowance for doubtful accounts (202)   (202)   (470)
Receivables, net 47,568   47,568   $ 50,806
Allowance for doubtful accounts [Abstract]          
Bad debt expense (credit) $ 25 $ 51 $ (70) $ 110