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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of TDR Modification Type (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($) loan | Dec. 31, 2020 USD ($) loan | Dec. 31, 2019 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 | 1 | 14
Pre- Modification Outstanding Recorded Investment | $ 3,420 | $ 5,000 | $ 21,726
Post-Modification Outstanding Recorded Investment | $ 3,420 | $ 5,000 | $ 19,062
Number of loans modified as a TDR during past 12 months that had a subsequent payment default | loan |  | 1 | 1
Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 14
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 19,062
Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 0
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 0
Extension of Maturity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 | 1 | 0
Post-Modification Outstanding Recorded Investment | $ 3,420 | $ 5,000 | $ 0
Commercial | Commercial and industrial |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 1 | 12
Pre- Modification Outstanding Recorded Investment | $ 0 | $ 5,000 | $ 18,512
Post-Modification Outstanding Recorded Investment | $ 0 | $ 5,000 | $ 18,193
Commercial | Commercial and industrial | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 12
Post-Modification Outstanding Recorded Investment |  | $ 0 | $ 18,193
Commercial | Commercial and industrial | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 0 | 0
Post-Modification Outstanding Recorded Investment |  | $ 0 | $ 0
Commercial | Commercial and industrial | Extension of Maturity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  | 1 | 0
Post-Modification Outstanding Recorded Investment |  | $ 5,000 | $ 0
Commercial | SBA |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 | 0 | 2
Pre- Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 3,214
Post-Modification Outstanding Recorded Investment | $ 0 | $ 0 | $ 869
Number of loans modified as a TDR during past 12 months that had a subsequent payment default | loan | 0 | 0 | 0
Commercial | SBA | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  |  | 2
Post-Modification Outstanding Recorded Investment |  |  | $ 869
Commercial | SBA | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  |  | 0
Post-Modification Outstanding Recorded Investment |  |  | $ 0
Commercial | SBA | Extension of Maturity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan |  |  | 0
Post-Modification Outstanding Recorded Investment |  |  | $ 0
Consumer | Single family residential mortgage |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 | 0 | 0
Pre- Modification Outstanding Recorded Investment | $ 3,420 | $ 0 | $ 0
Post-Modification Outstanding Recorded Investment | $ 3,420 | $ 0 | $ 0
Consumer | Single family residential mortgage | Change in Principal Payments and Interest Rates |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Consumer | Single family residential mortgage | Change in Principal Payments |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 0 |  |
Post-Modification Outstanding Recorded Investment | $ 0 |  |
Consumer | Single family residential mortgage | Extension of Maturity |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 2 |  |
Post-Modification Outstanding Recorded Investment | $ 3,420 |  |
Consumer | Single family residential mortgage | Both an Extension of maturity and Change in interest rate from variable to fixed |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of Loans | loan | 1 |  |
Post-Modification Outstanding Recorded Investment | $ 1,800 |  |

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