STOCKHOLDERS' DEFICIT - Second Quarter 2017 Private Placement (Details) - Private Placement - Common Stock - USD ($) $ / shares in Units, $ in Millions	Jun. 29, 2017	Mar. 01, 2017
Class of Stock [Line Items]
Stock issued (in shares)	6,359,350	3,300,000.0
Stock offering price (in dollars per share)	$ 2.50	$ 1.5366
Net proceeds from issuance of equity, net of issuance costs	$ 15.9	$ 5.1
Associated costs with private placement	$ 0.2