EARNINGS (LOSS) PER SHARE (Computation of Basic and Diluted Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator for basic and diluted earnings (loss) per share:
Net income (loss)	$ 976	$ (12,631)
Denominator:
Basic shares outstanding (in shares)	55,848	56,457
Dilutive effect of equity-based compensation awards (in shares)	234	0
Dilutive shares outstanding (in shares)	56,082	56,457
Basic income (loss) per share (in USD per share)	$ 0.02	$ (0.22)
Diluted income (loss) per share (in USD per share)	$ 0.02	$ (0.22)