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STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2017
Jan. 01, 2017
Dec. 25, 2015
May 11, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation expense $ 7.7 $ 9.4 $ 11.1  
Granted (in dollars per share) $ 25.45 $ 21.53 $ 23.03  
Number of common stock shares represented by each performance share (in shares) 1      
Tax benefit from compensation expense $ 2.7 $ 3.3 $ 3.9  
Restricted stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Compensation not yet recognized $ 11.9      
Unrecognized stock-based compensation expense, period for recognition 1 year 8 months 1 day      
Vested in Period, fair value $ 6.9 6.6 6.2  
Restricted stock | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Restricted stock | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 4 years      
Performance shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period 3 years      
Compensation not yet recognized $ 2.1      
Unrecognized stock-based compensation expense, period for recognition 1 year 11 months 30 days      
Vested in Period, fair value $ 2.9 $ 3.3 $ 4.0  
Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Option expiration period 7 years      
Employee stock purchase plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
ESPP shares reserved for purchase (in shares) 1,000,000      
Maximum employee subscription rate 10.00%      
Purchase price of common stock, percent of market value 85.00%      
Employee stock purchase plan requisite service period 1 month      
Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized for issuance (in shares)       1,540,000