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STOCKHOLDERS' EQUITY - PREFERRED STOCK (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Jul. 31, 2016
Sep. 30, 2016
Class of Stock [Line Items]    
Dividends preferred stock   $ 0.1
Class A common stock    
Class of Stock [Line Items]    
Preferred stock dividends (shares) 39,325