COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) property unit	Dec. 31, 2018 USD ($)	Apr. 30, 2018 USD ($)
Real Estate Properties [Line Items]
Redemption basis	1
Number of consecutive trading days for valuation	10 days
Aggregate redemption value of Units of operating partnership owned by limited partners | $	$ 76.6	$ 68.4	$ 74.7
Subject to Restrictions on Taxable Dispositions
Real Estate Properties [Line Items]
Number of real estate properties | property	24
Number of apartment homes (approximately) | unit	4,443