PRO FORMA FINANCIAL INFORMATION - Narrative (Details)	6 Months Ended
	Jun. 30, 2016 acquisition	Jun. 30, 2015 Facilitiy
Business Acquisition [Line Items]
Number of acquired properties | acquisition	4
Skilled Nursing Transitional Care Facilities [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Number of acquired properties		3
Senior Housing Facilities [Member] | Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Number of acquired properties		10