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STOCKHOLDERS' DEFICIT - PREFERRED STOCK (Details) - USD ($)
$ in Millions
3 Months Ended
Aug. 14, 2017
Jun. 30, 2017
Class of Stock [Line Items]    
Dividends preferred stock   $ 0.2
Subsequent Event | Class A common stock    
Class of Stock [Line Items]    
Preferred stock dividends (shares) 45,766