FAIR VALUE DISCLOSURES - Narrative (Details)		3 Months Ended
	Mar. 01, 2017 Property	Mar. 31, 2017 USD ($) Property acquisition	Dec. 31, 2016 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Facilities transitioned to managed property structure | Property	8	8
Payment of contingent consideration		$ 0
Recurring [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent consideration liability		$ 0	$ 818,000
Acquisitions With Contingent Consideration Arrangements [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of real estate acquisitions | acquisition		3