FAIR VALUE DISCLOSURES - Narrative (Details)	1 Months Ended	12 Months Ended
	Nov. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) Property acquisition
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Earn-out arrangements expired		1
Payout under earn-out arrangement		$ 0
Contingent consideration liability	$ 400,000
Number of properties transitioned, earn out terminated | Property		8
Acquisitions With Contingent Consideration Arrangements
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of real estate acquisitions | acquisition		3