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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Collateral Dependent Loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | $ 7,115,038 | $ 7,251,480
Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 933 | 14,207
Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 26,045 | 18,507
Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 24,083 | 16,287
Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 113 | 235
Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 51,174 | 49,236
Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable |  | 1,420,023
Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable |  | 102,925
Commercial | Commercial and industrial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 1,845,960 | 2,668,984
Commercial | Commercial and industrial | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 13,518
Commercial | Commercial and industrial | Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 37
Commercial | Commercial and industrial | Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 18,392 | 4,776
Commercial | Commercial and industrial | Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Commercial | Commercial and industrial | Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 18,392 | 18,331
Commercial | Commercial real estate | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 910 |
Commercial | Commercial real estate | Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 |
Commercial | Commercial real estate | Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 |
Commercial | Commercial real estate | Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 |
Commercial | Commercial real estate | Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 910 |
Commercial | SBA |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 68,137 | 205,548
Commercial | SBA | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 23 | 689
Commercial | SBA | Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 4,702 | 4,458
Commercial | SBA | Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 5,691 | 11,511
Commercial | SBA | Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Commercial | SBA | Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 10,416 | 16,658
Consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 7,115,038 |
Consumer | Single family residential mortgage |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 1,920,806 | 1,420,023
Consumer | Single family residential mortgage | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Consumer | Single family residential mortgage | Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 21,262 | 14,012
Consumer | Single family residential mortgage | Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Consumer | Single family residential mortgage | Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Consumer | Single family residential mortgage | Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 21,262 | 14,012
Consumer | Other consumer |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 86,988 | 102,925
Consumer | Other consumer | Commercial |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Consumer | Other consumer | Residential |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 81 | 0
Consumer | Other consumer | Business Assets |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 0 | 0
Consumer | Other consumer | Automobile |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | 113 | 235
Consumer | Other consumer | Collateral |  |
Financing Receivable, Impaired [Line Items] |  |
Loans receivable | $ 194 | $ 235

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