DEBT - Narrative (Details)		1 Months Ended	12 Months Ended
	May 31, 2023	Nov. 30, 2022 USD ($)	Dec. 31, 2023 USD ($) apartmentProperty loan	Dec. 31, 2022 USD ($) apartmentProperty	Sep. 30, 2021 USD ($)
Line of Credit Facility [Line Items]
Number of real estate properties, unencumbered by mortgages | apartmentProperty			46
Revolving lines of credit			$ 30,000,000	$ 113,500,000
Carrying principal value			$ 919,990,000	$ 1,011,777,000
Number of real estate communities, serving as collateral for mortgage loans | apartmentProperty			14	15
Mortgage loans, interest rate			3.54%	3.62%
Mortgages
Line of Credit Facility [Line Items]
Number of loans in default | loan			0
Mortgages | Minimum
Line of Credit Facility [Line Items]
Mortgage loans, interest rate			3.45%
Mortgages | Maximum
Line of Credit Facility [Line Items]
Mortgage loans, interest rate			5.04%
Private Shelf Agreement | Unsecured debt
Line of Credit Facility [Line Items]
Carrying principal value			$ 200,000,000
Note Purchase Agreement | Unsecured debt
Line of Credit Facility [Line Items]
Original principal balance			125,000,000
Series 2021-C | Unsecured debt
Line of Credit Facility [Line Items]
Original principal balance			25,000,000
PNC Bank Term Loan Agreement | Unsecured debt
Line of Credit Facility [Line Items]
Carrying principal value				$ 100,000,000
Original principal balance		$ 100,000,000
Term		364 days
PNC Bank Term Loan Agreement | Unsecured debt | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)		1.20%
PNC Bank Term Loan Agreement | Unsecured debt | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)		1.75%
Fannie Mae Credit Facility Agreement | Mortgages
Line of Credit Facility [Line Items]
Carrying principal value			198,850,000	$ 198,850,000
Original principal balance			$ 198,900,000
Number of real estate communities, serving as collateral for mortgage loans | apartmentProperty			12
Weighted average interest rate			2.78%
Mortgage loans, interest rate			2.78%	2.78%
Fannie Mae Credit Facility Agreement | Mortgages | Interest Only Payment Date One
Line of Credit Facility [Line Items]
Term			7 years
Fannie Mae Credit Facility Agreement | Mortgages | Interest Only Payment Date Two
Line of Credit Facility [Line Items]
Term			10 years
Fannie Mae Credit Facility Agreement | Mortgages | Interest Only Payment Date Three
Line of Credit Facility [Line Items]
Term			12 years
Line of Credit | Minimum | Base Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)	2500.00%
Line of Credit | Minimum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)	12500.00%
Line of Credit | Maximum | Base Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)	8000.00%
Line of Credit | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Interest rate spread (as a percent)	18000.00%
Line of Credit | BMO Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 250,000,000
Remaining borrowing capacity			220,000,000	$ 136,500,000
Revolving lines of credit			$ 30,000,000	$ 113,500,000
Operating line of credit, interest rate			7.82%	5.61%
Accordion option					$ 400,000,000
Operating Line of Credit
Line of Credit Facility [Line Items]
Revolving lines of credit			$ 0
Operating Line of Credit | Unsecured debt
Line of Credit Facility [Line Items]
Maximum borrowing capacity			$ 6,000,000	$ 6,000,000