LOSS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Common stock, par value (in USD per share)	$ 0.0001				$ 0.0001				$ 0.0001	$ 0.0001
Preferred stock, par value (in USD per share)	$ 0.0001				$ 0.0001				$ 0.0001	$ 0.0001
Loss from continuing operations, net of income taxes									$ (63,303)	$ (36,172)	$ (304,819)
(Loss) income from discontinued operations, net of income taxes	$ (287)	$ 66	$ (373)	$ (299)	$ (7,373)	$ 107	$ 169	$ 504	(893)	(6,593)	4,691
Net loss	$ (1,962)	$ (12,992)	$ (29,523)	$ (19,719)	$ (12,858)	$ (11,327)	$ (8,750)	$ (9,830)	(64,196)	(42,765)	(300,128)
Accrued dividends on Preferred Stock									(9,376)	(8,392)	(6,120)
Deemed dividends on Preferred Stock									(701)	(692)	(3,690)
Loss attributable to common stockholders									$ (74,273)	$ (51,849)	$ (309,938)
Denominator - Basic and Diluted:
Weighted average number of common shares outstanding (in shares)									123,791	93,740	68,710
Loss Per Common Share:
Loss from continuing operations, basic and diluted (in USD per share)	$ (0.03)	$ (0.12)	$ (0.26)	$ (0.18)	$ (0.06)	$ (0.11)	$ (0.14)	$ (0.17)	$ (0.59)	$ (0.48)	$ (4.58)
Income (loss) from discontinued operations, basic and diluted (in USD per share)	(0.01)	0.00	0.00	0.00	(0.07)	0.00	0.00	0.00	(0.01)	(0.07)	0.07
Net loss, basic and diluted (in USD per share)	$ (0.04)	$ (0.12)	$ (0.26)	$ (0.18)	$ (0.13)	$ (0.11)	$ (0.14)	$ (0.17)	$ (0.60)	$ (0.55)	$ (4.51)