SUPPLEMENTAL CASH FLOW AND SIGNIFICANT NONCASH TRANSACTION DISCLOSURES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Supplemental Disclosure of Cash Flow Information:
Interest paid, net of capitalized interest of $901 and $694 for the three months ended March 31, 2020 and 2019, respectively	$ 8,184	$ 9,127
Interest capitalized	901	694
Supplemental Disclosure of Significant Noncash Transactions:
Accrued improvements to real estate	2,699	5,108
Mortgage loan assumed by buyer in connection with sale of real estate	0	23,663
Redeemable common stock payable	623	7,742
Distributions paid to common stockholders through common stock issuances pursuant to the dividend reinvestment plan	262	286
Redemption of Series B Preferred Units in exchange for Series A-3 Preferred Units	$ 0	$ 2,992