PROPERTY AND EQUIPMENT - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Minimum [Member]
Property, Plant and Equipment [Line Items]
Useful life	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	40 years
Operating Properties [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 0.9	$ 0.6
Operating Properties [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Useful life	40 years