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DERIVATIVES - Additional Information (Details)	3 Months Ended
	Mar. 31, 2020 USD ($) N	Jun. 30, 2019 USD ($) N	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Net interest income/(expense)	$ 31,747,000		$ 30,007,000
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Notional amount	270,000,000			$ 245,000,000
Net interest income/(expense)	(106,000)		335,000
Unrealized after-tax gain of accumulated other comprehensive income (loss)	26,000	$ 189,000
Interest income	$ 71,000		$ 31,000
Derivative number of instruments terminated | N	3	4

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Derivative number of instruments terminated.

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Nominal or face amount used to calculate payment on derivative.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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The net amount of operating interest income (expense).

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-SubTopic 220
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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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