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STOCK-BASED COMPENSATION (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Jul. 01, 2017
Jul. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-cash stock-based compensation expense $ 4,867 $ 4,694 $ 9,646 $ 9,250
Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-cash stock-based compensation expense 955 981 2,199 2,277
Time-based restricted stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-cash stock-based compensation expense 2,832 1,717 5,144 3,862
Performance Shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-cash stock-based compensation expense 1,080 832 2,303 1,947
Stock Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Non-cash stock-based compensation expense $ 0 $ 1,164 $ 0 $ 1,164