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LOANS AND CREDIT QUALITY - Loan Modifications, Financial Effect (Details) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Commercial business | Commercial business |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average contractual interest rate, before modification |  | 5.72%
Weighted average contractual interest rate, after modification |  | 4.00%
Commercial business | Commercial business | Significant Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 5 years 2 months 12 days |
Commercial business | Commercial business | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 1 year 2 months 12 days | 9 months 18 days
Commercial business | Non-owner occupied CRE | Significant Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 3 years 8 months 12 days |
Commercial business | Non-owner occupied CRE | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 2 years 1 month 6 days |
Commercial business | CRE construction | Significant Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 2 years 8 months 12 days |
Commercial business | CRE construction | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 1 year 7 months 6 days |
Commercial business | Home equity and other | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) |  | 16 years 1 month 6 days
Consumer loans | Single family | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average contractual interest rate, before modification | 5.25% | 4.25%
Weighted average contractual interest rate, after modification | 5.00% | 3.31%
Consumer loans | Single family | Significant Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average percent of loan balances capitalized and added to term of loan | 0.37% | 0.22%
Consumer loans | Single family | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average time added to life of loans (in years) | 4 years 10 months 24 days | 4 years 4 months 24 days
Consumer loans | Home equity and other | Significant Payment Delay |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average percent of loan balances capitalized and added to term of loan |  | 3.47%

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