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STOCKHOLDERS' EQUITY - COMMON STOCK (Details) - shares
Jun. 30, 2015
Mar. 31, 2015
Class A common stock    
Class of Stock [Line Items]    
Common stock, shares authorized 210,000,000 210,000,000
Class B common stock    
Class of Stock [Line Items]    
Common stock, shares authorized 1,241,000 1,241,000