COMMON AND PREFERRED STOCK (Conversion of Preferred Stock) (Details) (IPO)	1 Months Ended
	Feb. 29, 2012
Class of Stock [Line Items]
Conversion of preferred stock (in shares)	21,840,128
Series A-1 Convertible Redeemable Preferred Stock
Class of Stock [Line Items]
Conversion of preferred stock (in shares)	16,439,480
Series A-2 Convertible Redeemable Preferred Stock
Class of Stock [Line Items]
Conversion of preferred stock (in shares)	3,078,432
Series A-3 Convertible Preferred Stock
Class of Stock [Line Items]
Conversion of preferred stock (in shares)	2,322,216