BORROWINGS (Senior Secured Financing, Term Warehouse Financing Facilities and Mortgage Payable) (Details) $ in Thousands	Mar. 31, 2026 USD ($) Loan	Dec. 31, 2025 USD ($) Loan
Debt Instrument [Line Items]
Outstanding Borrowings	$ 789,943	$ 1,343,859
Value of Collateral	$ 1,221,379	$ 1,897,049
Weighted Average Interest Rate	5.58%	5.73%
Mortgage Payable \| ReadyCap Commercial, LLC
Debt Instrument [Line Items]
Outstanding Borrowings	$ 20,145	$ 20,185
Value of Collateral	$ 26,964	$ 26,964
Number of Positions as Collateral \| Loan	1	1
Weighted Average Interest Rate	7.47%	7.57%
CRE - Term Reinvestment Financing Facility \| JP Morgan Chase Bank, N.A.
Debt Instrument [Line Items]
Outstanding Borrowings, Unamortized Issuance Costs and Discounts	$ 709,206	$ 728,167
Value of Collateral	$ 1,009,811	$ 1,009,622
Number of Positions as Collateral \| Loan	33	34
Weighted Average Interest Rate	5.44%	5.50%
Senior Secured Financing Facility \| Massachusetts Mutual Life Insurance Company
Debt Instrument [Line Items]
Outstanding Borrowings, Unamortized Issuance Costs and Discounts	$ 41,654	$ 61,645
Value of Collateral	$ 146,354	$ 166,526
Number of Positions as Collateral \| Loan	4	5
Weighted Average Interest Rate	7.44%	7.53%
CRE - Term Warehouse Financing Facilities \| JP Morgan Chase Bank, N.A.
Debt Instrument [Line Items]
Outstanding Borrowings	$ 0	$ 116,488
Value of Collateral	$ 0	$ 149,000
Number of Positions as Collateral \| Loan	0	3
Weighted Average Interest Rate	0.00%	5.50%
CRE - Term Warehouse Financing Facilities \| Morgan Stanley Mortgage Capital Holdings LLC
Debt Instrument [Line Items]
Outstanding Borrowings	$ 18,938	$ 417,374
Value of Collateral	$ 38,250	$ 544,937
Number of Positions as Collateral \| Loan	1	12
Weighted Average Interest Rate	7.68%	5.55%