EARNINGS PER SHARE - Components of Numerator and Denominator for Computation of Basic and Diluted Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net income (loss) attributable to common shareholders - Basic and Diluted	$ 23,433	$ (1,334)	$ 54,429	$ (17,574)
Denominator:
Weighted average common shares - Basic (shares)	36,963	36,176	36,593	36,058
Effect of diluted shares:
Share-based awards (shares)	619	0	683	0
Weighted average common shares - Diluted (shares)	37,582	36,176	37,276	36,058
Net income (loss) per share attributable to common shareholders - Basic (in dollars per share)	$ 0.63	$ (0.04)	$ 1.49	$ (0.49)
Net income (loss) per share attributable to common shareholders - Diluted (in dollars per share)	$ 0.62	$ (0.04)	$ 1.46	$ (0.49)