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MORTGAGE BANKING OPERATIONS - Sensitivity Analysis (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Single family mortgage servicing rights | $ 76,617 |  |
Expected weighted-average life (in years) | 7 years 9 months 7 days |  |
Constant Prepayment Rate [Abstract] |  |  |
Impact on fair value of 25 basis points adverse change in interest rates | $ (447) |  |
Impact on fair value of 50 basis points adverse change in interest rates | (1,045) |  |
Discount Rate [Abstract] |  |  |
Impact on fair value of 100 basis points increase | (3,150) |  |
Impact on fair value of 200 basis points increase | $ (6,062) |  |
CPRs |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 10.91% | 8.84% | 11.37%
CPRs | Minimum |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 6.01% | 7.90% |
CPRs | Maximum |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 11.10% | 17.35% |
CPRs | Weighted Average |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 8.19% | 10.35% |
Discount Rates |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 9.35% | 8.23% | 7.82%
Discount Rates | Minimum |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 9.74% | 6.94% |
Discount Rates | Maximum |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 16.88% | 13.96% |
Discount Rates | Weighted Average |  |  |
Key economic assumptions and the sensitivity of the current fair valu for single family MSRs |  |  |
Measurement input | 10.66% | 7.97% |

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