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SHARE-BASED COMPENSATION (Details 2) (USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended 12 Months Ended
Sep. 28, 2013
Restricted stock
Sep. 29, 2012
Restricted stock
Dec. 29, 2012
Performance share units
Key executives
Dec. 31, 2010
Performance share units
Key executives
Dec. 29, 2012
Performance share units
Key executives
Minimum
Dec. 31, 2010
Performance share units
Key executives
Minimum
Dec. 29, 2012
Performance share units
Key executives
Maximum
Dec. 31, 2010
Performance share units
Key executives
Maximum
SHARE-BASED COMPENSATION                
Performance period     2 years          
Service period     3 years          
Number of shares to be earned as a percentage of target amount         0.00% 0.00% 150.00% 100.00%
Modifier applied to adjust the total units earned (as a percent)         50.00%   150.00%  
Vesting period 3 years              
Shares                
Nonvested stock at the beginning of the period (in shares) 1,678,350              
Granted (in shares) 350,000   535,000 855,000        
Vested (in shares) (260,600)              
Cancelled (in shares) (677,500)              
Nonvested stock at the end of the period (in shares) 1,090,250              
Expected to vest at the end of the period (in shares) 501,135              
Weighted Average Grant Date Fair Value                
Nonvested stock at the beginning of the period (in dollars per share) $ 8.40              
Granted (in dollars per share) $ 21.38              
Vested (in dollars per share) $ 5.68              
Cancelled (in dollars per share) $ 6.45              
Nonvested stock at the end of the period (in dollars per share) $ 14.43              
Expected to vest at the end of the period (in dollars per share) $ 16.43              
Additional disclosures                
Total unrecognized compensation cost related to nonvested stock awards granted under restricted stock plans $ 6.1              
Weighted average recognition period of unrecognized stock-based compensation expense 2 years 9 months 18 days              
Fair value of shares vested under restricted stock plans $ 1.5 $ 2.3