SUPPLEMENTAL CASH FLOW AND SIGNIFICANT NONCASH TRANSACTION DISCLOSURES (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Supplemental Disclosure of Cash Flow Information:
Interest paid, net of capitalized interest of $2,368 and $2,079 for the nine months ended September 30, 2020 and 2019, respectively	$ 18,945	$ 21,981
Interest capitalized	2,368	2,079
Supplemental Disclosure of Significant Noncash Transactions:
Accrued improvements to real estate	2,393	3,414
Mortgage loan assumed by buyer in connection with sale of real estate	0	23,663
Redeemable common stock payable	262	3,423
Distributions paid to common stockholders through common stock issuances pursuant to the dividend reinvestment plan	262	835
Redemption of Series B Preferred Units in exchange for Series A-3 Preferred Units	0	2,992
Accrued preferred dividends	226	$ 0
Assets and liabilities assumed in connection with Battery Point acquisition:
Real estate	56,148
Notes payable	36,003
Other assets	21
Other liabilities	355
Redeemable non-controlling interest	3,024
Series A-3 preferred units payable	$ 16,000