SEGMENT REPORTING - Segment Assets and Accumulated Depreciation (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Property owned	$ 2,420,146	$ 2,534,124
Less accumulated depreciation	(530,703)	(535,401)
Total real estate investments	1,889,443	1,998,723
Cash and cash equivalents	8,630	10,458	$ 31,267
Restricted cash	639	1,433	$ 7,358
Other assets	27,649	22,687
TOTAL ASSETS	1,926,361	2,033,301
Multifamily
Segment Reporting Information [Line Items]
Property owned	2,402,544	2,274,202
Less accumulated depreciation	(526,565)	(443,828)
Total real estate investments	1,875,979	1,830,374
All Other
Segment Reporting Information [Line Items]
Property owned	17,602	259,922
Less accumulated depreciation	(4,138)	(91,573)
Total real estate investments	$ 13,464	$ 168,349