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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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Debt Instrument Number Of Extensions

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Refers to number of loans in default

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Face (par) amount of debt instrument at time of issuance.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average interest rate of debt outstanding.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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