RESIDENTIAL MORTGAGE LOANS - Schedule of Loan Basis by Year of Origination (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
2019-D
Mortgage Loans [Line Items]
Prior	$ 82,654	$ 85,105
Total	82,654	85,105
2019-F
Mortgage Loans [Line Items]
Prior	77,138	81,025
Total	77,138	81,025
2020-B
Mortgage Loans [Line Items]
Prior	82,513	86,096
Total	82,513	86,096
2021-A
Mortgage Loans [Line Items]
Year five	0	0
Prior	104,636	109,382
Total	104,636	109,382
18-1 LLC
Mortgage Loans [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	1,206	1,221
Total	1,206	1,221
Residential Mortgage Loans HFI, Net
Mortgage Loans [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
Prior	348,147	362,829
Total	348,147	362,829
Residential Mortgage Loans HFS, Net
Mortgage Loans [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	600
Year five	250	370
Prior	15,822	28,449
Total	$ 16,072	$ 29,419

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