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BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Mortgage Receivable and Notes Receivable (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Multi Family Same-Store | Ironwood Apartments - New Hope, MN | Tax Increment Financing |  |  |
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE |  |  |
Loan commitment | $ 5.7 |  | $ 6.1
Multi-Family Residential | Ironwood Apartments - New Hope, MN | Tax Increment Financing |  |  |
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE |  |  |
Interest rate | 4.50% |  |
Multi-Family Residential | Minneapolis, Minnesota | Construction Loans |  |  |
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE |  |  |
Interest rate |  | 4.50% |
Mortgage loans receivable at fair value | $ 0.0 | $ 29.9 |
Multi-Family Residential | Minneapolis, Minnesota | Mezzanine Loan |  |  |
MORTGAGE RECEIVABLE AND NOTES RECEIVABLE |  |  |
Interest rate |  | 11.50% |
Mortgage loans receivable at fair value |  | $ 15.3 | $ 0.0

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