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DEBT - Narrative (Details) | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) apartmentProperty | Dec. 31, 2022 USD ($) apartmentProperty loan apartmentHome | Dec. 31, 2021 USD ($) | Jan. 31, 2021 USD ($)
Line of Credit Facility [Line Items] |  |  |  |  |
Number of real estate properties, unencumbered by mortgages | apartmentProperty |  |  | 53 |  |
Revolving lines of credit |  |  | $ 113,500,000 | $ 76,000,000 |
Number of apartment units | apartmentHome |  |  | 6,758 |  |
Weighted average interest rate |  |  | 3.62% | 3.26% |
Carrying principal value |  |  | $ 1,011,777,000 | $ 859,784,000 |
Number of real estate communities, serving as collateral for mortgage loans | apartmentProperty |  |  | 15 |  |
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 |  |  | 3.47% |  |
Mortgages | Maximum |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Mortgage loans, interest rate |  |  | 4.57% |  |
Private Shelf Agreement | Unsecured debt |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Debt available for issuance |  |  | $ 25,000,000 |  | $ 225,000,000
Original principal balance |  | $ 25,000,000 |  |  |
Carrying principal value |  |  | $ 200,000,000 |  |
Note Purchase Agreement | Unsecured debt |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Original principal balance |  | 125,000,000 |  |  |
Fannie Mae Credit Facility Agreement | Mortgages |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Original principal balance |  | $ 198,900,000 |  |  |
Weighted average interest rate |  | 2.78% | 2.78% | 2.78% |
Carrying principal value |  |  | $ 198,850,000 | $ 198,850,000 |
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 |  |  |
Fannie Mae Credit Facility Agreement | Mortgages | 2021 Acquisitions |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Number of apartment units | apartmentProperty |  | 16 |  |  |
PNC Bank Term Loan Agreement | Unsecured debt |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Term | 364 days |  |  |  |
Original principal balance | $ 100,000,000 |  |  |  |
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% |  |  |  |
Lines of credit | BMO Line of Credit |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  | $ 250,000,000 | 250,000,000 |
Revolving lines of credit |  |  |  | 76,000,000 |
Current borrowing capacity |  |  |  | $ 173,500,000 |
Accordion option |  | $ 400,000,000 |  |  |
Domestic Line of Credit | Minimum | Base Rate |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate spread (as a percent) |  |  | 0.25% |  |
Domestic Line of Credit | Minimum | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate spread (as a percent) |  |  | 1.25% |  |
Domestic Line of Credit | Maximum | Base Rate |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate spread (as a percent) |  |  | 0.80% |  |
Domestic Line of Credit | Maximum | London Interbank Offered Rate (LIBOR) |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Interest rate spread (as a percent) |  |  | 1.80% |  |
Domestic Line of Credit | BMO Line of Credit |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Remaining borrowing capacity |  |  | $ 136,500,000 |  |
Revolving lines of credit |  |  | $ 113,500,000 |  |
Operating line of credit, interest rate |  |  | 4.12% |  |
Operating Line of Credit | Unsecured debt |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |
Maximum borrowing capacity |  |  | $ 6,000,000 |  |

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