FAIR VALUE DISCLOSURES AND REPORTING, THE FAIR VALUE OPTION AND FAIR VALUE MEASUREMENTS - Schedule of Quantitative Information About Recurring Level 3 Fair Value Measurements (Details) $ in Thousands	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Fair Value	$ 1,060,014	$ 1,039,322
Credit Value Adjustment | Interest Rate Swaps - Risk Participations
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Derivative liability, Fair Value	$ 1	$ (5)
Credit Spread | Credit Value Adjustment | Minimum | Interest Rate Swaps - Risk Participations
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Derivative liability, Range of Inputs	0.0225	0.0225
Credit Spread | Credit Value Adjustment | Maximum | Interest Rate Swaps - Risk Participations
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Derivative liability, Range of Inputs	0.0300	0.0300
Recovery Rate | Credit Value Adjustment | Interest Rate Swaps - Risk Participations
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Derivative liability, Range of Inputs	0.70	0.70
Trust Preferred Securities | Discounted cash flow
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Fair Value	$ 29	$ 30
Trust Preferred Securities | Probability of default | Discounted cash flow | Minimum
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Range of Inputs	0.0709	0.0781
Trust Preferred Securities | Probability of default | Discounted cash flow | Maximum
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Range of Inputs	0.0745	0.0789
Municipal securities | Discounted cash flow
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Fair Value	$ 26,090	$ 18,183
Municipal securities | Discount Rate | Discounted cash flow | Minimum
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Range of Inputs	0.0260	0.0234
Municipal securities | Discount Rate | Discounted cash flow | Maximum
Quantitative Information About Recurring Fair Value Measurements [Line Items]
Range of Inputs	0.0556	0.0550