EARNINGS (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic and diluted earnings per share attributable to common shareholders
Net income (loss)	$ 15,623	$ (7,186)
Less: net income attributable to noncontrolling interest	76	79
Net income (loss) attributable to common shareholders	15,547	(7,265)
Less: earnings allocated to participating securities	247	457
Net income (loss) attributable to common shareholders, after earnings allocated to participating securities	$ 15,300	$ (7,722)
Weighted-average number of common shares outstanding	71,153	70,813
Basic and diluted earnings (loss) per common share:
Net income (loss) per common share attributable to common shareholders - basic and diluted	$ 0.22	$ (0.11)
Common shares excluded from computation of potentially dilutive shares because of anti-dilutive effect	1,100	700