REAL ESTATE PROPERTIES HELD FOR INVESTMENT - Schedule of Real Estate Properties Held for Investment (Details) $ in Thousands	Dec. 31, 2016 USD ($) Bed Facilitiy	Dec. 31, 2015 USD ($) Bed Facilitiy
Real Estate Properties [Line Items]
Building and improvements	$ 1,983,769	$ 1,954,129
Furniture and equipment	85,196	97,840
Land improvements	3,744	3,594
Land	220,042	221,894
Total Real Estate at Cost	2,292,751	2,277,457
Accumulated Depreciation	(282,812)	(237,841)
Total Real Estate Investments, Net	$ 2,009,939	$ 2,039,616
Operating Segments [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	183	180
Number of Beds/Units | Bed	18,878	18,349
Total Real Estate at Cost	$ 2,292,345	$ 2,277,158
Accumulated Depreciation	(282,556)	(237,589)
Total Real Estate Investments, Net	$ 2,009,789	$ 2,039,569
Skilled Nursing/Transitional Care Facilities [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	97	100
Number of Beds/Units | Bed	10,819	11,012
Total Real Estate at Cost	$ 1,042,754	$ 1,029,291
Accumulated Depreciation	(190,038)	(167,968)
Total Real Estate Investments, Net	$ 852,716	$ 861,323
Senior Housing [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	85	78
Number of Beds/Units | Bed	7,989	7,213
Total Real Estate at Cost	$ 1,187,951	$ 1,072,060
Accumulated Depreciation	(82,131)	(52,494)
Total Real Estate Investments, Net	$ 1,105,820	$ 1,019,566
Acute Care Hospitals [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	1	2
Number of Beds/Units | Bed	70	124
Total Real Estate at Cost	$ 61,640	$ 175,807
Accumulated Depreciation	(10,387)	(17,127)
Total Real Estate Investments, Net	51,253	158,680
Corporate Level [Member]
Real Estate Properties [Line Items]
Total Real Estate at Cost	406	299
Accumulated Depreciation	(256)	(252)
Total Real Estate Investments, Net	$ 150	$ 47