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Receivables, Net (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 26, 2016
Mar. 28, 2015
Dec. 26, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Customers, trade $ 42,100   $ 46,110
Other receivables 4,030   5,166
Gross receivables 46,130   51,276
Less: allowance for doubtful accounts (397)   (470)
Receivables, net 45,733   $ 50,806
Allowance for doubtful accounts [Abstract]      
Bad debt expense (credit) $ (27) $ 32