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SEGMENT REPORTING - Revenues and Net Operating Income for Reportable Segments (Details) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) segment | Jun. 30, 2021 USD ($)
Segment Reporting Information [Line Items] |  |  |  |
Number of reportable segments | segment |  |  | 1 |
Segment revenues and net operating income [Abstract] |  |  |  |
Revenue | $ 63,116 | $ 46,656 | $ 123,430 | $ 93,304
Property operating expenses, including real estate taxes | 26,216 | 18,760 | 52,089 | 38,001
Net operating income | 36,900 | 27,896 | 71,341 | 55,303
Property management | (2,721) | (2,085) | (4,974) | (3,852)
Casualty gain (loss) | (382) | 27 | (980) | (74)
Depreciation and amortization | (24,768) | (19,308) | (55,769) | (39,300)
General and administrative expenses | (5,221) | (3,797) | (9,721) | (7,703)
Gain (loss) on sale of real estate and other investments | 27 | 26,840 | 27 | 26,840
Interest expense | (7,561) | (7,089) | (15,276) | (14,320)
Interest and other income (loss) | (17) | 619 | 1,046 | 1,050
Net income (loss) | (3,743) | 23,103 | (14,306) | 17,944
Multifamily |  |  |  |
Segment revenues and net operating income [Abstract] |  |  |  |
Revenue | 62,201 | 44,957 | 121,599 | 89,198
Property operating expenses, including real estate taxes | 25,986 | 17,967 | 51,529 | 35,841
Net operating income | 36,215 | 26,990 | 70,070 | 53,357
All Other |  |  |  |
Segment revenues and net operating income [Abstract] |  |  |  |
Revenue | 915 | 1,699 | 1,831 | 4,106
Property operating expenses, including real estate taxes | 230 | 793 | 560 | 2,160
Net operating income | $ 685 | $ 906 | $ 1,271 | $ 1,946

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