FAIR VALUE MEASUREMENTS (AS RESTATED) - Loan Securitizations (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Residential Mortgage Loans
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Investments Fair Value	$ 3,038,587	$ 2,431,867
Unsecured senior notes, net of issuance costs	2,618,082	2,095,478
Mortgage Loans Receivable
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Investments Fair Value	353,594	349,975
Unsecured senior notes, net of issuance costs	$ 318,998	$ 312,918
Mortgage Loans Receivable | Discount Rate | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.022	0.028
Mortgage Loans Receivable | Discount Rate | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.074	0.071
Mortgage Loans Receivable | Discount Rate | Weighted Average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.027	0.036
Mortgage Loans Receivable | Prepayment Rate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.20	0.03
Mortgage Loans Receivable | CDR
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.03	0.03
Mortgage Loans Receivable | Loss Severity
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Measurement input	0.15	0.15