EARNINGS PER COMMON SHARE - Schedule of the Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Numerator
Net income attributable to common stockholders (in usd)	$ 12,534	$ 22,776	$ 46,756	$ 39,419
Denominator
Basic weighted average common shares and common equivalents	112,149,638	65,312,288	81,150,846	65,285,591
Dilutive restricted stock units	268,462	279,140	278,198	184,998
Diluted weighted average common shares	112,418,100	65,591,428	81,429,044	65,470,589
Net income attributable to common stockholders, per:
Basic common share (in dollars per share)	$ 0.11	$ 0.35	$ 0.58	$ 0.60
Diluted common share (in dollars per share)	$ 0.11	$ 0.35	$ 0.57	$ 0.60