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DEBT - Narrative (Details) |  | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 26, 2024 USD ($) extensionOption | Sep. 30, 2024 USD ($) apartmentCommunity loan | Oct. 28, 2024 USD ($) | Aug. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) apartmentCommunity | Sep. 30, 2021 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |  |
Number of real estate properties, unencumbered by mortgages | apartmentCommunity |  | 45 |  |  |  |
Revolving lines of credit |  | $ 39,000,000 |  |  | $ 30,000,000 |
Outstanding debt |  | $ 925,144,000 |  |  | $ 921,124,000 |
Weighted average interest rate |  | 3.59% |  |  | 3.54% |
Mortgages |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Outstanding debt |  | $ 387,300,000 |  |  | $ 392,300,000 |
Number of real estate properties, serving as collateral for mortgage loans | apartmentCommunity |  | 14 |  |  | 14 |
Number of material defaults or instances of noncompliance | loan |  | 0 |  |  |  |
Private Shelf Agreement | Unsecured Senior Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Outstanding debt |  | $ 175,000,000.0 |  |  |  |
Debt instrument, face amount |  |  |  |  |  | $ 125,000,000.0
Private Shelf Agreement | Unsecured Senior Notes | Subsequent Event |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, maximum borrowing capacity |  |  | $ 300,000,000.0 |  |  |
Note Purchase Agreement | Unsecured Senior Notes |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Debt instrument, face amount |  | 125,000,000.0 |  |  |  |
Mortgages payable - Fannie Mae credit facility | Mortgages |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Outstanding debt |  | 198,850,000 |  |  | $ 198,850,000 |
Debt instrument, face amount |  | $ 198,900,000 |  |  |  |
Number of real estate properties secured by debt | apartmentCommunity |  | 11 |  |  |  |
Weighted average interest rate |  | 2.78% |  |  | 2.78% |
Mortgages payable - Fannie Mae credit facility | Mortgages | Interest Only Payment Date One |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Term of debt |  | 7 years |  |  |  |
Mortgages payable - Fannie Mae credit facility | Mortgages | Interest Only Payment Date Two |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Term of debt |  | 10 years |  |  |  |
Mortgages payable - Fannie Mae credit facility | Mortgages | Interest Only Payment Date Three |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Term of debt |  | 12 years |  |  |  |
Line of Credit | Minimum | Base Rate |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 0.20% |  |  |  |  |
Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 1.20% |  |  |  |  |
Line of Credit | Maximum | Base Rate |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 0.80% |  |  |  |  |
Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Basis spread on variable rate | 1.80% |  |  |  |  |
Line of Credit | BMO Line of Credit |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Maximum borrowing capacity |  | $ 250,000,000.0 |  |  |  |
Revolving lines of credit |  | 39,000,000.0 |  |  |  |
Remaining borrowing capacity |  | 211,000,000.0 |  |  |  |
Number of extensions | extensionOption | 2 |  |  |  |  |
Debt extension term | 6 months |  |  |  |  |
Accordion option | $ 400,000,000.0 |  |  |  |  |
Operating Line of Credit |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Maximum borrowing capacity |  | 10,000,000.0 |  | $ 6,000,000.0 |  |
Revolving lines of credit |  | $ 0 |  |  | $ 0 |

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