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GUARANTEES AND MORTGAGE REPURCHASE LIABILITY (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Loss Contingencies [Line Items] |  |  |  |  |
Loans serviced for others | $ 7,048,505,000 |  | $ 7,048,505,000 |  | $ 7,216,343,000
Single family |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Loans serviced for others | 5,198,826,000 |  | 5,198,826,000 |  | 5,316,304,000
Loss sharing relationship |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Reserve liability related to multifamily DUS program | 600,000 |  | 600,000 |  | 500,000
Loss sharing relationship | Multifamily |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
UPB of loans sold through DUS | 1,700,000,000 |  | 1,700,000,000 |  | 1,800,000,000
Losses incurred - related to DUS | 0 | $ 0 | 0 | $ 0 |
Credit risk |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Reserve liability related to mortgage repurchase | $ 1,100,000 |  | $ 1,100,000 |  | $ 1,500,000

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