EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Numerator
Net income attributable to common stockholders	$ 59,910	$ 16,262
Denominator
Basic weighted average common shares and common equivalents (in shares)	178,294,605	65,354,649
Dilutive restricted stock units (in shares)	221,783	565,837
Diluted weighted average common shares (in shares)	178,516,388	65,920,486
Net income attributable to common stockholders, per:
Basic common share (in dollars per share)	$ 0.34	$ 0.25
Diluted common share (in dollars per share)	$ 0.34	$ 0.25