v3.26.3
INVESTMENTS IN LOANS - Schedule of Residential Transition Loans, Past Due Status And Valuation Adjustments For Residential Transition Loans (Fair Value) (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
RTLs    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB $ 446,383 $ 175,990
Carrying Value 448,931 176,584
Carrying Value Over (Under) UPB 2,548 594
RTLs | Current    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB 444,983 175,990
Carrying Value 447,540 176,584
Carrying Value Over (Under) UPB 2,557 594
RTLs | 90+    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB 1,400 0
Carrying Value 1,391 0
Carrying Value Over (Under) UPB (9) 0
NQMs    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB 211,689 85,059
Carrying Value 214,359 87,630
Carrying Value Over (Under) UPB 2,670 2,571
NQMs | Current    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB 211,689 85,059
Carrying Value 214,359 87,630
Carrying Value Over (Under) UPB 2,670 2,571
NQMs | 90+    
Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items]    
UPB 0 0
Carrying Value 0 0
Carrying Value Over (Under) UPB $ 0 $ 0