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FAIR VALUE MEASUREMENTS - Derivative Financial Instruments, Gain (Loss) (Details) | 12 Months Ended | 36 Months Ended
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Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2018 USD ($) item
Effects of the Company's derivative financial instruments on the consolidated statements of income |  |  |  |
Amount of realized gain (loss) reclassified from Accumulated other comprehensive income to earnings | $ 110,000 |  |  |
Interest rate swap | Cash flow hedges |  |  |  |
Effects of the Company's derivative financial instruments on the consolidated statements of income |  |  |  |
Amount of gain (loss) recognized on derivatives in Other comprehensive income (loss) | 1,870,000 | $ (221,000) | $ 255,000 |
Amount of reclassification from Accumulated other comprehensive income into Interest expense | 98,000 | (1,786,000) | (2,624,000) |
Number of interest rate swaps for which hedge accounting was discontinued | item |  |  |  | 7
Amount of realized gain (loss) reclassified from Accumulated other comprehensive income to earnings | 505,000 | (201,000) | (178,000) |
Amount of gain (loss) recognized with respect to effectiveness testing |  |  |  | $ 0
Additional amount to be reclassified during the next twelve months | 401,000 |  |  |
Accrued interest on derivative in a liability position | 8,000 | 53,000 |  | 8,000
Fair value of derivative in a liability position, including accrued interest but excluding adjustments for non-performance risk | 554,000 | 1,638,000 |  | 554,000
Termination liability value | 554,000 | 1,638,000 |  | $ 554,000
Interest rate swap | Cash flow hedges | Accrued expenses and other liabilities |  |  |  |
Effects of the Company's derivative financial instruments on the consolidated statements of income |  |  |  |
Adjustments for non-performance risk | 41,000 | 93,000 |  |
Unconsolidated Joint Ventures | Interest rate swap | Cash flow hedges |  |  |  |
Effects of the Company's derivative financial instruments on the consolidated statements of income |  |  |  |
Amount of gain (loss) recognized on derivatives in Other comprehensive income (loss) | 69,000 | 15,000 | (31,000) |
Amount of reclassification from Accumulated other comprehensive income into Equity in earnings of unconsolidated joint ventures | $ 103,000 | $ (61,000) | $ (95,000) |

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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into equity in earnings of unconsolidated joint ventures on derivative instruments designated and qualifying as hedging instruments. + References No definition available. + Details
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