ALLOWANCE FOR RISK-SHARING OBLIGATIONS AND GUARANTY OBLIGATION - CECL Provision Impact (Details) $ in Millions |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2025
USD ($)
|
Mar. 31, 2024
USD ($)
|
|
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] | ||
| Forecast-period loss rate | 0.021 | 0.023 |
| Reversion-period loss rate | 0.012 | 0.013 |
| Historical loss rate | 0.003 | 0.003 |
| CECL allowance | $ 24.4 | $ 25.0 |
| Provision (benefit) for CECL allowance | 0.2 | (6.6) |
| Fannie Mae DUS Program | ||
| Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] | ||
| At-risk Fannie Mae servicing portfolio UPB | $ 63,600.0 | $ 59,200.0 |