EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator
Net income attributable to common stockholders	$ 68,996	$ 269,314	$ 148,141
Denominator
Basic weighted average common shares and common equivalents (in shares)	187,172,210	178,305,738	105,621,242
Dilutive stock options and restricted stock units (in shares)	954,882	416,006	221,192
Dilutive weighted average common shares (in shares)	188,127,092	178,721,744	105,842,434
Net income attributable to common stockholders, per:
Basic common share (in dollars per share)	$ 0.37	$ 1.51	$ 1.40
Diluted common share (in dollars per share)	$ 0.37	$ 1.51	$ 1.40