EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Numerator
Net income attributable to common stockholders	$ 35,218	$ 12,534	$ 288,708	$ 46,756
Denominator
Basic weighted average common shares and common equivalents (in shares)	178,317,769	112,149,638	178,309,127	81,150,846
Dilutive restricted stock units (in shares)	623,444	268,462	420,726	278,198
Diluted weighted average common shares (in shares)	178,941,213	112,418,100	178,729,853	81,429,044
Net income attributable to common stockholders, per:
Basic common share (in dollars per share)	$ 0.20	$ 0.11	$ 1.62	$ 0.58
Diluted common share (in dollars per share)	$ 0.20	$ 0.11	$ 1.62	$ 0.57