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LOANS AND LEASES - Schedule of Commercial Real Estate Loans (Details) - Commercial real estate - Loan Portfolio Diversification Risk | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Percent owner-occupied |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Percent of total loans and leases | 30.20% | 29.00%
Percent non-owner-occupied |  |
Financing Receivable, Allowance for Credit Loss [Line Items] |  |
Percent of total loans and leases | 69.80% | 71.00%

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