EARNINGS PER COMMON SHARE - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator
Net income attributable to common stockholders	$ 33,447	$ 35,217
Denominator
Basic weighted average common shares and common equivalents (in shares)	211,450,699	205,395,330
Diluted weighted average common shares (in shares)	212,624,305	206,006,285
Net income, per:
Basic common share (in dollars per share)	$ 0.16	$ 0.17
Diluted common share (in dollars per share)	$ 0.16	$ 0.17
Restricted Stock Units
Denominator
Dilutive restricted stock units (in shares)	1,141,455	610,955
Shares under Forward Sale Agreements
Denominator
Dilutive restricted stock units (in shares)	32,151	0