RESIDENTIAL MORTGAGE LOANS (AS RESTATED) - Schedule of Geographic Distribution of the Residential Mortgage Loans (Details) - Residential Mortgage Loans	Mar. 31, 2024	Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	100.00%	100.00%
California
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	10.30%	8.30%
Florida
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	9.80%	9.30%
Texas
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	8.20%	9.50%
New York
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	6.30%	8.00%
Georgia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	4.80%	4.90%
North Carolina
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	3.70%	3.20%
Illinois
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	3.60%	3.50%
New Jersey
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	3.60%	3.90%
Virginia
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	3.40%	3.60%
Maryland
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	3.20%	3.30%
Other US
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Percentage of Total Outstanding Unpaid Principal Amount	43.10%	42.50%