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LONG-TERM DEBT Summary of long-term debt (Details) - USD ($)
$ in Thousands
Sep. 25, 2015
Dec. 26, 2014
Debt Instrument [Line Items]    
Long-term debt $ 113,956 $ 201,650
Long-term debt, less current portion 111,689 199,383
Bank of America, N.A. and Wells Fargo Capital Finance, LLC [Member]    
Debt Instrument [Line Items]    
Long-term debt 86,000 171,994
Synovus Bank [Member]    
Debt Instrument [Line Items]    
Long-term debt 27,956 29,656
Long-term debt, current maturities $ 2,267 $ 2,267