REVERSE MORTGAGE LOANS HELD FOR INVESTMENT AND HMBS-RELATED BORROWINGS - Schedule of Gain on Reverse Mortgage Loans Held for Investment (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Fair Value Disclosures [Abstract] | ||
| Gain on new originations | $ 1,807 | $ 1,284 |
| Gain on tail securitizations | 501 | 322 |
| Net interest income | 24 | 23 |
| Change in fair value | 583 | 1,601 |
| Fair value gain recognized in earnings | 2,915 | 3,230 |
| Loan fees and other | 1,019 | 786 |
| Total | $ 3,934 | $ 4,016 |