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LOANS AND CREDIT QUALITY - Loans on Nonaccrual with no related allowance (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | $ 9,069 | $ 10,197
Nonaccrual | 17,712 | 20,722
Commercial loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 5,234 | 8,022
Nonaccrual | 11,123 | 14,105
Commercial loans | Owner occupied commercial real estate |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 3,874 | 4,922
Nonaccrual | 3,874 | 4,922
Commercial loans | Commercial business |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 1,360 | 3,100
Nonaccrual | 7,249 | 9,183
Consumer loans |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 3,835 | 2,175
Nonaccrual | 6,589 | 6,617
Consumer loans | Single family |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 2,907 | 2,173
Nonaccrual | 4,602 | 4,883
Consumer loans | Home equity, adjusted for credit analysis |  |
Financing Receivable, Nonaccrual [Line Items] |  |
Nonaccrual with no related ACL | 928 | 2
Nonaccrual | $ 1,987 | $ 1,734

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