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FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
FINANCIAL LIABILITIES |  |
Unsecured senior notes | $ 299,443 | $ 399,007
Mortgages payable | 842,559 |
Carrying Amount |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 29,701 | 10,458
FINANCIAL LIABILITIES |  |
Revolving lines of credit | 0 | 113,500
Term loans | 0 | 100,000
Unsecured senior notes | 300,000 | 300,000
Carrying Amount | Mortgages | Mortgages payable - Fannie Mae |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 198,850 | 198,850
Carrying Amount | Mortgages | Mortgages payable - other |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 343,709 | 299,427
Carrying Amount | Restricted cash |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 22,496 | 1,433
Fair Value |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 29,701 | 10,458
FINANCIAL LIABILITIES |  |
Revolving lines of credit | 0 | 113,500
Term loans | 0 | 100,000
Unsecured senior notes | 234,675 | 238,446
Fair Value | Mortgages | Mortgages payable - Fannie Mae |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 157,180 | 161,297
Fair Value | Mortgages | Mortgages payable - other |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 306,678 | 274,029
Fair Value | Restricted cash |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | $ 22,496 | $ 1,433

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