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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Total loans | $ 7,289,320 | $ 7,251,480
Collateral Pledged |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 41,208 | 49,236
Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 1,003 | 14,207
Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 14,017 | 18,507
Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 26,084 | 16,287
Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 104 | 235
Commercial | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 1,993,416 | 2,668,984
Commercial | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 1,240,927 | 1,311,105
Commercial | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 85,674 | 205,548
Commercial | Collateral Pledged | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 20,367 | 18,331
Commercial | Collateral Pledged | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 910 |
Commercial | Collateral Pledged | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 10,415 | 16,658
Commercial | Commercial | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 13,518
Commercial | Commercial | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 910 |
Commercial | Commercial | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 93 | 689
Commercial | Residential | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 37
Commercial | Residential | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 |
Commercial | Residential | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 4,605 | 4,458
Commercial | Business Assets | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 20,367 | 4,776
Commercial | Business Assets | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 |
Commercial | Business Assets | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 5,717 | 11,511
Commercial | Automobile | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Commercial | Automobile | Commercial real estate |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 |
Commercial | Automobile | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 1,947,652 | 1,420,023
Consumer | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 86,701 | 102,925
Consumer | Collateral Pledged | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 9,331 | 14,012
Consumer | Collateral Pledged | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 185 | 235
Consumer | Commercial | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Commercial | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Residential | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 9,331 | 14,012
Consumer | Residential | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 81 | 0
Consumer | Business Assets | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Business Assets | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Automobile | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | 0 | 0
Consumer | Automobile | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Total loans | $ 104 | $ 235

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