LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Amortized Cost Basis of Collateral Dependent Loans Individually Evaluated to Determine Expected Credit Losses (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	$ 27,049	$ 6,479
Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	20,480	6,409
Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	6,483	70
Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	86	0
Commercial and industrial
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	6,483	70
Commercial and industrial | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Commercial and industrial | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	6,483	70
Commercial and industrial | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Commercial real estate (including multi-family residential)
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	9,038	5,548
Real estate: | Commercial real estate (including multi-family residential) | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	9,038	5,548
Real estate: | Commercial real estate (including multi-family residential) | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Commercial real estate (including multi-family residential) | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Commercial real estate construction and land development
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	4,183	437
Real estate: | Commercial real estate construction and land development | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	4,183	437
Real estate: | Commercial real estate construction and land development | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Commercial real estate construction and land development | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | 1-4 family residential (including home equity)
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	7,259	424
Real estate: | 1-4 family residential (including home equity) | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	7,259	424
Real estate: | 1-4 family residential (including home equity) | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | 1-4 family residential (including home equity) | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Residential construction
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Residential construction | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Residential construction | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Real estate: | Residential construction | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Consumer and other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	86	0
Consumer and other | Real Estate
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Consumer and other | Business Assets
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	0	0
Consumer and other | Other
Financing Receivable Allowance For Credit Losses [Line Items]
Finance receivables allowance of credit losses	$ 86	$ 0