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LONG-TERM DEBT Long-Term Debt Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 13, 2018
Dec. 30, 2018
Dec. 31, 2017
Jan. 01, 2017
Revolving Credit Facility [Line Items]        
Total   $ 80,000 $ 118,756  
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities   22,397 2,267 $ 2,456
Bank of America, N.A. and Wells Fargo Capital Finance, LLC        
Revolving Credit Facility [Line Items]        
Total   80,000 95,900  
Revolving credit facility, interest rate description one-month      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility        
Revolving Credit Facility [Line Items]        
Revolving Credit Facility, maximum borrowing capacity $ 300,000      
Line of Credit Facility, Maximum Borrowing Capacity, Subject To Lender Approval $ 450,000      
Total   80,000    
Revolving credit facility, amount outstanding   $ 6,900    
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate   1.50%    
Revolving credit facility, additional base rate 1.00% 2.46%    
Revolving credit facility, interest rate at period end   3.96%    
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Base rate        
Revolving Credit Facility [Line Items]        
Revolving credit facility, additional base rate 0.50%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Minimum        
Revolving Credit Facility [Line Items]        
Revolving credit facility, unused capacity, commitment fee percentage 0.25%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Minimum | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 1.25%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Minimum | Base rate        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 0.25%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Maximum        
Revolving Credit Facility [Line Items]        
Revolving credit facility, unused capacity, commitment fee percentage 0.375%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Maximum | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 2.50%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Maximum | Base rate        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 1.50%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Revolving Credit Facility | Revolving Credit Facility, Liquidity Requirement Component        
Revolving Credit Facility [Line Items]        
Revolving credit facility, remaining borrowing capacity   $ 213,100    
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Letter of Credit [Member] | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Letters of credit, additional basis rate 0.50%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Letter of Credit [Member] | Minimum | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 1.00%      
Bank of America, N.A. and Wells Fargo Capital Finance, LLC | Letter of Credit [Member] | Maximum | London Interbank Offered Rate (LIBOR)        
Revolving Credit Facility [Line Items]        
Debt Instrument, basis spread on variable rate 2.25%      
Synovus Bank        
Revolving Credit Facility [Line Items]        
Total   0 $ 22,856  
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities   $ 22,000