INVESTMENT IN UNCONSOLIDATED VENTURES - Joint Venture buyouts (Details) $ in Thousands	Dec. 01, 2021 USD ($) property_unit	Oct. 01, 2021 USD ($) property_unit	Aug. 18, 2021 USD ($) property_unit	May 04, 2021 USD ($) property_unit	Dec. 31, 2021 USD ($) property_unit
Acquisitions
No. of Units | property_unit					2,576
Primary beneficiary | Multi-family | Unconsolidated joint ventures
Acquisitions
No. of Units | property_unit					1,744
Purchase Price					$ 51,619
Mortgage balance at acquisition					$ 116,105
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Purchase of properties
Acquisitions
No. of Units | property_unit					968
Purchase Price					$ 45,588
Mortgage balance at acquisition					$ 116,105
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Civic Center I/II, Southaven, MS
Acquisitions
No. of Units | property_unit				776
Percentage of Interest Purchased				14.70%
Purchase Price				$ 6,031
New Ownership Percentage				74.70%
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Bells Bluff, Nashville, TN
Acquisitions
No. of Units | property_unit			402
Percentage of Interest Purchased			41.90%
Purchase Price			$ 27,860
New Ownership Percentage			100.00%
Mortgage balance at acquisition			$ 52,000
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Bells Bluff, Nashville, TN | Purchase of properties
Acquisitions
No. of Units | property_unit			402
Percentage of Interest Purchased			42.00%
Purchase Price			$ 27,860
Mortgage balance at acquisition			$ 52,000
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Crestmont at Thornblade, Greenville, SC
Acquisitions
No. of Units | property_unit		266
Percentage of Interest Purchased		10.00%
Purchase Price		$ 1,600
New Ownership Percentage		100.00%
Mortgage balance at acquisition		$ 26,425
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Crestmont at Thornblade, Greenville, SC | Purchase of properties
Acquisitions
No. of Units | property_unit		266
Percentage of Interest Purchased		10.00%
Purchase Price		$ 1,600
Mortgage balance at acquisition		$ 26,425
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Crossings of Bellevue, Nashville, TN
Acquisitions
No. of Units | property_unit	300
Percentage of Interest Purchased	20.00%
Purchase Price	$ 16,128
New Ownership Percentage	100.00%
Mortgage balance at acquisition	$ 37,680
Primary beneficiary | Multi-family | Unconsolidated joint ventures | Crossings of Bellevue, Nashville, TN | Purchase of properties
Acquisitions
No. of Units | property_unit	300
Percentage of Interest Purchased	20.00%
Purchase Price	$ 16,128
Mortgage balance at acquisition	$ 37,680