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EMPLOYEE BENEFIT PLAN (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, cost recognized $ 0.4 $ 0.3 $ 0
First Three Percentage of Contributions [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, employer matching contribution, percent of match   100.00%  
Defined contribution plan, employer matching contribution, percent   3.00%  
Next Two Percentage of Contributions [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined contribution plan, employer matching contribution, percent of match   50.00%  
Defined contribution plan, employer matching contribution, percent   2.00%