EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
EARNINGS PER SHARE
Net income (loss)	$ (19,180)	$ 5,010	$ (20,688)	$ (707)
Weighted Average Common Shares Outstanding (Denominator)
Weighted Average Common Shares Outstanding Basic	36,706	35,780	36,509	35,339
Effect of dilutive securities		508
Weighted Average Common Shares Outstanding Diluted	36,706	36,288	36,509	35,339
Net loss per common share
Basic net income (loss) per common share	$ (0.52)	$ 0.14	$ (0.57)	$ (0.02)
Diluted net income (loss) per common share	$ (0.52)	$ 0.14	$ (0.57)	$ (0.02)
Antidilutive securities excluded from computation of diluted net income per share
Stock options and nonvested shares excluded as their inclusion would be anti-dilutive	1,447	1,695	1,087	2,359