REAL ESTATE OPERATIONS - Real Estate Operations (Details) - Land JV	3 Months Ended
	Mar. 31, 2020 USD ($) a item	Mar. 31, 2019 USD ($) a
Disaggregation of Revenue [Line Items]
No. of Acres | a	4,900	9.9
Area of land sales as a percentage of land holdings	33.50%
Gross Sales Price	$ 22,000,000	$ 3,300,000
Number of purchase and sale agreements | item	12
Proceeds from sale of land	$ 87,900,000
Area of land remaining under contract | a	4,100
Percentage of remaining land under contract	84.00%
Management fee revenue earned per month	$ 20,000