FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
FINANCIAL LIABILITIES
Unsecured senior notes	$ 299,506	$ 299,459
Total debt	921,266	916,022
Carrying Amount
FINANCIAL ASSETS
Cash and cash equivalents and restricted cash	14,453	8,630
FINANCIAL LIABILITIES
Revolving lines of credit	39,000	30,000
Unsecured senior notes	300,000	300,000
Carrying Amount \| Mortgages payable - Fannie Mae credit facility \| Mortgages
FINANCIAL LIABILITIES
Total debt	198,850	198,850
Carrying Amount \| Mortgages payable - other \| Mortgages
FINANCIAL LIABILITIES
Total debt	386,949	391,140
Carrying Amount \| Restricted cash
FINANCIAL ASSETS
Cash and cash equivalents and restricted cash	2,794	639
Fair Value
FINANCIAL ASSETS
Cash and cash equivalents and restricted cash	14,453	8,630
FINANCIAL LIABILITIES
Revolving lines of credit	39,000	30,000
Unsecured senior notes	259,103	252,108
Fair Value \| Mortgages payable - Fannie Mae credit facility \| Mortgages
FINANCIAL LIABILITIES
Total debt	172,708	168,555
Fair Value \| Mortgages payable - other \| Mortgages
FINANCIAL LIABILITIES
Total debt	369,209	367,080
Fair Value \| Restricted cash
FINANCIAL ASSETS
Cash and cash equivalents and restricted cash	$ 2,794	$ 639

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Fair value portion of contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time.

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Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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