INVESTMENTS IN LOANS - Schedule of Residential Transition Loans, Past Due Status And Valuation Adjustments For Residential Transition Loans (Fair Value) (Details) $ in Thousands	Dec. 31, 2025 USD ($)
RTLs
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	$ 175,990
Carrying Value	176,584
Carrying Value Over (Under) UPB	594
RTLs | Current
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	175,990
Carrying Value	176,584
Carrying Value Over (Under) UPB	594
RTLs | 90+
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	0
Carrying Value	0
Carrying Value Over (Under) UPB	0
NQMs
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	85,059
Carrying Value	87,630
Carrying Value Over (Under) UPB	2,571
NQMs | Current
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	85,059
Carrying Value	87,630
Carrying Value Over (Under) UPB	2,571
NQMs | 90+
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]
UPB	0
Carrying Value	0
Carrying Value Over (Under) UPB	$ 0