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MORTGAGE BANKING OPERATIONS - Sensitivity Analysis (Details) - Single family $ in Thousands | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Mar. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Fair value of single family MSR | $ 74,056 | $ 74,249 | $ 75,701 | $ 76,617
Expected weighted-average life (in years) | 8 years 5 months 26 days |  |  |
Constant Prepayment Rate [Abstract] |  |  |  |
Impact on fair value of 25 basis points adverse change in interest rates | $ (621) |  |  |
Impact on fair value of 50 basis points adverse change in interest rates | (1,344) |  |  |
Discount Rate [Abstract] |  |  |  |
Impact on fair value of 100 basis points increase | (1,952) |  |  |
Impact on fair value of 200 basis points increase | $ (4,627) |  |  |
Low | CPRs (2) |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.0620 | 0.0680 |  |
Low | Discount rate |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.1000 | 0.1000 |  |
High | CPRs (2) |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.3300 | 0.3250 |  |
High | Discount rate |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.1600 | 0.1700 |  |
Weighted Average | CPRs (2) |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.0660 | 0.0700 |  |
Weighted Average | Discount rate |  |  |  |
Key economic assumptions and the sensitivity of the current fair value for single family MSRs |  |  |  |
Measurement input (as a percent) | 0.1064 | 0.1000 |  |

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