NET INCOME PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
NET INCOME PER SHARE
Shares excluded from the diluted net income per common share computation because their effect was antidilutive									347,362	1,435,139	2,306,665
Net loss from continuing operations									$ (3,076)	$ (918)	$ (4,439)
Income (Loss) from discontinued operations, net of income tax									(487,201)	109,010	156,779
NET INCOME/ (LOSS)	$ (547,550)	$ 44,160	$ 4,696	$ 8,417	$ 18,620	$ 31,595	$ 26,661	$ 31,216	$ (490,277)	$ 108,092	$ 152,340
Weighted average common shares outstanding-basic
Common stock (in shares)									156,023,836	155,747,225	156,889,533
Dilutive effect of:
Stock-based awards (in shares)										261,203	42,919
Weighted average common shares outstanding-diluted									156,023,836	156,008,428	156,932,452
Net income/ (loss) from continuing operations per share:
Net income / (loss) per share from continuing operations-basic (in dollars per share)	$ 0.00	$ (0.01)	$ 0.01	$ 0.00	$ 0.00	$ 0.00	$ (0.01)	$ 0.00	$ (0.02)	$ (0.01)	$ (0.03)
Net income / (loss) per share from continuing operations-diluted (in dollars per share)	0.00	(0.01)	(0.01)	0.00	0.00	0.00	(0.01)	0.00	(0.02)	(0.01)	(0.03)
Net Income/(loss) from discontinued operations per share:
Net income/ (loss) per share from discontinued operations-basic (in dollars per share)	(3.50)	0.29	(0.04)	0.05	0.13	0.20	0.18	0.20	(3.12)	0.70	1.00
Net income/ (loss) per share from discontinued operations-diluted (in dollars per share)	(3.50)	0.29	0.04	0.05	0.13	0.20	0.18	0.20	(3.12)	0.70	1.00
Net income/(loss) per share:
Net income/ (loss) per share-basic (in dollars per share)	(3.51)	0.28	0.03	0.05	0.13	0.20	0.17	0.20	(3.14)	0.69	0.97
Net income/ (loss) per share-diluted (in dollars per share)	$ (3.51)	$ 0.28	$ 0.03	$ 0.05	$ 0.13	$ 0.20	$ 0.17	$ 0.20	$ (3.14)	$ 0.69	$ 0.97