INVESTMENT IN AND ADVANCES TO UNCONSOLIDATED JOINT VENTURES - Results from Operations of the Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Financial Position
Total assets	$ 123,871		$ 123,871		$ 167,837
Total liabilities	80,333		80,333		116,667
Partners’/members’ capital	43,538		43,538		$ 51,170
Results from Operations
Total revenues	3,915	$ 4,351	14,945	$ 13,671
Total expenses	4,595	3,415	12,029	9,788
Net income (loss)	$ (680)	$ 936	$ 2,916	$ 3,883