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COMMITMENTS AND CONTINGENCIES - Deposits (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Concentration Risk [Line Items]
Deposits	$ 2,159,444	$ 2,085,479
Product Concentration Risk [Member] | Deposit Account [Member]
Concentration Risk [Line Items]
Deposits	991,600	1,100,000
Deposits [Member] | Top Ten Depositors [Member]
Concentration Risk [Line Items]
Deposits	$ 227,600	$ 215,100
Deposits [Member] | Deposits [Member] | Top Ten Depositors [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	10.50%	11.00%
Deposits [Member] | Product Concentration Risk [Member] | Deposit Account [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	45.90%	53.30%

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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