EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator for basic and diluted earnings per share:
Income from continuing operations	$ 13,737	$ 86,918	$ 329,232	$ 426,404
Net income	13,737	86,918	329,232	426,404
Net income attributable to noncontrolling interests	986	1,659	534	4,831
Net income attributable to common stockholders	$ 12,751	$ 85,259	$ 328,698	$ 421,573
Denominator:
Denominator for basic earnings per share—weighted average shares (in shares)	373,177	372,426	372,997	363,724
Effect of dilutive securities:
Stock options (in shares)	0	640	0	445
Restricted stock awards (in shares)	163	567	147	492
OP Unitholder Interests (in shares)	2,955	2,992	2,968	2,996
Denominator for diluted earnings per share—adjusted weighted average shares (in shares)	376,295	376,625	376,112	367,657
Basic earnings per share:
Income from continuing operations (in usd per share)	$ 0.04	$ 0.23	$ 0.88	$ 1.17
Net income attributable to common stockholders (in usd per share)	0.03	0.23	0.88	1.16
Diluted earnings per share:
Income from continuing operations (in usd per share)	0.04	0.23	0.88	1.16
Net income attributable to common stockholders (in usd per share)	$ 0.03	$ 0.23	$ 0.87	$ 1.15