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Accounts Receivable (Details) - USD ($)
$ in Thousands
Jun. 28, 2015
Dec. 28, 2014
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Trade receivables $ 93,950 $ 96,177
Other receivables 9,563 6,830
Receivables, current 103,513 103,007
Allowance for doubtful accounts (1,071) (514)
Accounts receivable, net $ 102,442 $ 102,493