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STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details) (Employee stock, USD $)
In Millions, except Share data, unless otherwise specified
9 Months Ended
Sep. 28, 2012
Sep. 30, 2011
Employee stock
   
Share-based Compensation by Share-based Payment Award [Line Items]    
Maximum employee subscription rate 10.00%  
Purchase price of common stock, percent of market value 85.00%  
ESPP shares reserved for purchase 1,000,000  
Employee stock purchase plan requisite service period 1 month  
Shares purchased by participants 68,000 57,000
Proceeds from participant purchases $ 0.9 $ 0.7