PROPERTY AND EQUIPMENT - Operating Properties (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 305	$ 393
Tenant Improvements
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	1,509	0
Landscape
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	2,294	0
Real Estate Owned and Operating Properties
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	42,133	14,743
Less accumulated depreciation and amortization	(2,411)	(855)
Total depreciable assets, net	39,722	13,888
Property and equipment, net	45,199	33,866
Real Estate Owned and Operating Properties | Buildings and improvements
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	32,742	13,650
Real Estate Owned and Operating Properties | Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	5,559	1,087
Real Estate Owned and Operating Properties | Computer equipment
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	1,538	6
Real Estate Owned and Operating Properties | Land
Property, Plant and Equipment [Line Items]
Total non-depreciable assets, gross	4,920	4,920
Real Estate Owned and Operating Properties | Construction in progress
Property, Plant and Equipment [Line Items]
Total non-depreciable assets, gross	557	15,058
Real Estate Owned and Operating Properties Held-for-Sale
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	18,726	0
Less accumulated depreciation and amortization	(621)	0
Total depreciable assets, net	18,105	0
Property and equipment, net	25,505	7,418
Real Estate Owned and Operating Properties Held-for-Sale | Buildings and improvements
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	17,018	0
Real Estate Owned and Operating Properties Held-for-Sale | Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Total depreciable assets, gross	199	0
Real Estate Owned and Operating Properties Held-for-Sale | Land
Property, Plant and Equipment [Line Items]
Total non-depreciable assets, gross	$ 7,400	$ 7,418