REAL ESTATE PROPERTIES HELD FOR INVESTMENT - Schedule of Real Estate Properties Held for Investment (Details) $ in Thousands	Jun. 30, 2015 USD ($) Bed Facilitiy	Dec. 31, 2014 USD ($) Bed Facilitiy
Real Estate Properties [Line Items]
Building and improvements	$ 1,833,604	$ 1,551,548
Furniture and equipment	95,818	82,812
Land improvements	3,646	3,646
Land	214,498	193,793
Total Real Estate at Cost	2,147,566	1,831,799
Accumulated Depreciation	(213,735)	(185,994)
Total Real Estate Investments, Net	$ 1,933,831	$ 1,645,805
Operating Segments [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	172	160
Number of Beds/Units | Bed	18,049	16,718
Total Real Estate at Cost	$ 2,147,290	$ 1,831,534
Accumulated Depreciation	(213,503)	(185,789)
Total Real Estate Investments, Net	$ 1,933,787	$ 1,645,745
Skilled Nursing/Transitional Care Facilities [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	106	103
Number of Beds/Units | Bed	11,813	11,336
Total Real Estate at Cost	$ 1,026,652	$ 851,252
Accumulated Depreciation	(166,313)	(151,978)
Total Real Estate Investments, Net	$ 860,339	$ 699,274
Senior Housing [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	64	55
Number of Beds/Units | Bed	6,112	5,258
Total Real Estate at Cost	$ 944,831	$ 804,475
Accumulated Depreciation	(32,965)	(22,487)
Total Real Estate Investments, Net	$ 911,866	$ 781,988
Acute Care Hospital [Member]
Real Estate Properties [Line Items]
Number of Properties | Facilitiy	2	2
Number of Beds/Units | Bed	124	124
Total Real Estate at Cost	$ 175,807	$ 175,807
Accumulated Depreciation	(14,225)	(11,324)
Total Real Estate Investments, Net	161,582	164,483
Corporate [Member]
Real Estate Properties [Line Items]
Total Real Estate at Cost	276	265
Accumulated Depreciation	(232)	(205)
Total Real Estate Investments, Net	$ 44	$ 60