FAIR VALUE MEASUREMENTS - Effect of derivatives on Consolidated Statements of Income (Details) - USD ($)	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
FAIR VALUE MEASUREMENTS
Amount of gain (loss) recognized on derivatives in other comprehensive loss	$ 1,093,000	$ (4,928,000)
Amount of reclassification from Accumulated other comprehensive loss into Interest expense	(408,000)	(110,000)
Interest rate swap \| Cash flow hedges
FAIR VALUE MEASUREMENTS
Amounts reclassified from Accumulated other comprehensive loss into Interest Expense as a result of forecasted transactions being no longer probable of occurring	0	$ 0
Additional amount to be reclassified during the next twelve months	(1,547,000)
Credit risk related contingent feature
Accrued interest on derivatives in a liability position	123,000		$ 120,000
Fair value of derivative in a liability position, including accrued interest but excluding adjustments for non-performance risk	3,727,000		5,314,000
Termination liability value	3,727,000		5,314,000
Interest rate swap \| Cash flow hedges \| Accrued expenses and other liabilities
Credit risk related contingent feature
Adjustments for non-performance risk	$ 93,000		$ 182,000

Represents the accrued interest payable on derivatives in a liability position.

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The amount of adjustments for non-performance risk as applicable to the termination value of derivatives in a liability position.

+ References

No definition available.

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The aggregate fair value of assets needed to immediately settle the derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period.

+ References

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

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The amount of net gain (loss) reclassified into earnings in the period when cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period.

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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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