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LONG-TERM DEBT (Schedule of Long Term Debt) (Details) - USD ($)
$ in Thousands
Dec. 29, 2018
Dec. 30, 2017
Debt Instrument [Line Items]    
Long-term debt, BS $ 593,264 $ 617,306
Senior notes    
Debt Instrument [Line Items]    
Long-term debt, BS $ 400,000