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FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Not Measured at Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
FINANCIAL LIABILITIES |  |
Unsecured senior notes | $ 299,374 | $ 299,344
Mortgages payable | 874,210 |
Carrying Amount |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 13,156 | 31,267
FINANCIAL LIABILITIES |  |
Revolving lines of credit | 73,000 | 76,000
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 | 302,360 | 284,934
Carrying Amount | Restricted cash |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 1,914 | 7,358
Fair Value |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | 13,156 | 31,267
FINANCIAL LIABILITIES |  |
Revolving lines of credit | 73,000 | 76,000
Unsecured senior notes | 255,779 | 308,302
Fair Value | Mortgages | Mortgages payable - Fannie Mae |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 170,710 | 198,850
Fair Value | Mortgages | Mortgages payable - other |  |
FINANCIAL LIABILITIES |  |
Mortgages payable | 282,506 | 284,546
Fair Value | Restricted cash |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents and restricted cash | $ 1,914 | $ 7,358

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