DERIVATIVE FINANCIAL INSTRUMENTS - Narrative (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) riskParticipationAgreement swap broker customer	Sep. 30, 2024 USD ($) broker riskParticipationAgreement swap customer	Sep. 30, 2025 USD ($) riskParticipationAgreement swap broker customer	Sep. 30, 2024 USD ($) riskParticipationAgreement customer broker swap	Dec. 31, 2024 USD ($) riskParticipationAgreement swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Swap fee income	$ 816	$ 505	$ 1,879	$ 1,079
Cash collateral held by counterparty for derivatives	8,000		8,000		$ 6,700
Cash collateral held from counterparties	$ 370		$ 370		$ 8,300
Fair Value Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of new interest rate swaps | swap	0		0
Designated as hedging instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of new interest rate swaps | swap		0	0
Derivatives not designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of customers | customer		10,000		10,000
Third-party broker | broker		10		10
Interest rate derivative | Designated as hedging instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of derivatives | swap	1		1		1
Derivative, notional amount	$ 75,000		$ 75,000		$ 75,000
Interest rate derivative | Designated as hedging instrument | Cash Flow Hedging | Other liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liability	75,000		75,000
Interest rate derivative | Designated as hedging instrument | Cash Flow Hedging | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset					75,000
Interest rate derivative | Derivatives not designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 981,700		$ 981,700		789,300
Number of customers | customer	86		86
Third-party broker | broker	86		86
Interest rate derivative | Derivatives not designated as hedging instruments | Other liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative liability	$ 485,134		$ 485,134		388,851
Interest rate derivative | Derivatives not designated as hedging instruments | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative asset	485,134		485,134		$ 388,851
Interest rate swap-fixed pay
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount	$ 100,000		$ 100,000
Derivative instrument, number of derivatives terminated | swap			3
Interest rate swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Number of new interest rate swaps | swap	11	20	27	25
Swap fee income	$ 816	$ 505	$ 1,900	$ 1,100
Interest rate swap | Derivatives not designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		$ 96,500		$ 96,500
Risk participations - sold credit protection | Derivatives not designated as hedging instruments | Other liabilities
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Risk participation agreements with sold protection | riskParticipationAgreement	5		5		6
Derivative liability	$ 39,699		$ 39,699		$ 47,545
Number of risk participation agreements terminated | riskParticipationAgreement			1
Risk participations - purchased credit protection | Derivatives not designated as hedging instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items]
New risk participation agreements | riskParticipationAgreement	0	0	0
Risk participations - purchased credit protection | Derivatives not designated as hedging instruments | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Risk participation agreements with purchase protection | riskParticipationAgreement	5		5		5
Derivative asset	$ 23,559		$ 23,559		$ 23,726
New risk participation agreements | riskParticipationAgreement				2
Number of risk participation agreements terminated | riskParticipationAgreement	0
Risk participation agreements | Other assets
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, notional amount		$ 14,100		$ 14,100