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BASIS OF PRESENTATION - Narrative (Details) - USD ($) $ in Thousands |  |  | 6 Months Ended
--- | --- | --- | ---
Feb. 24, 2023 | Feb. 21, 2023 | Jun. 30, 2023 | Jun. 30, 2022
Accounting Policies [Abstract] |  |  |  |
Noninterest income |  |  | $ 17,800 | $ 11,500
Litigation settlement, expense |  | $ 1,000 | 1,000 | 5,100
Proceeds from plan of reorganization, recoupment of collateral |  |  | $ 5,000 |
Litigation settlement, amount awarded from other party | $ 17,800 |  |  | $ 5,200

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