EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Numerator
Net (loss) income attributable to common stockholders	$ (77,704)	$ 59,910
Denominator
Basic weighted average common shares and common equivalents (in shares)	178,385,984	178,294,605
Dilutive restricted stock units (in shares)	0	221,783
Diluted weighted average common shares (in shares)	178,385,984	178,516,388
Net (loss) income attributable to common stockholders, per:
Basic common share (in dollars per share)	$ (0.44)	$ 0.34
Diluted common share (in dollars per share)	$ (0.44)	$ 0.34