LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Amortized Cost Basis of Collateral-dependent Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Credit Losses Allocation	$ 28,543	$ 30,920	$ 31,140	$ 31,974
Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		14,744
Allowance for Credit Losses Allocation		217
Real Estate | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		14,527
Non-RE | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		217
Commercial and industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Credit Losses Allocation	2,929	3,719	3,823	4,382
Commercial and industrial | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		217
Allowance for Credit Losses Allocation		217
Commercial and industrial | Non-RE | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		217
Commercial real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Credit Losses Allocation	$ 12,173	12,257	$ 13,093	$ 12,658
Commercial real estate | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		14,527
Commercial real estate | Real Estate | Collateral Dependent Loans
Financing Receivable Allowance For Credit Losses [Line Items]
Amortized cost		$ 14,527