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STOCK-BASED COMPENSATION - Restricted and Unrestricted Stock and Performance Share Units (Details) (USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Jun. 27, 2014
Jun. 27, 2014
Restricted stock
Jun. 27, 2014
Performance shares
Jun. 27, 2014
Minimum
Restricted stock
Jun. 27, 2014
Maximum
Restricted stock
May 31, 2013
Incentive Plan
Share-based Compensation by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]            
Non-vested at beginning of period (in shares) 1,544,000          
Granted (in shares) 362,000          
Vested (in shares) (372,000)          
Forfeited (in shares) (17,000)          
Non-vested at the end of the period (in shares) 1,517,000          
Share-based Compensation by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]            
Non-vested at beginning of period (in dollars per share) $ 16.66          
Granted (in dollars per share) $ 25.27          
Vested (in dollars per share) $ 17.75          
Forfeited (in dollars per share) $ 18.29          
Non-vested at end of the period (in dollars per share) $ 18.42          
Shares authorized for issuance (in shares)           7,950,000
Vesting period     3 years 3 years 4 years  
Number of common stock shares represented by each performance share 1          
Total unrecognized stock-based compensation expense   $ 10.2 $ 10.4      
Unrecognized stock-based compensation expense for the period identified   $ 9.1 $ 3.9      
Unrecognized stock-based compensation expense, period for recognition   1 year 9 months 3 days 1 year 10 months 20 days