MORTGAGE LOANS RECEIVABLE - Schedule of Geographic Distribution of the Underlying Mortgage Loans Receivable (Details) - Mortgage Loans Receivable - Geographic Concentration Risk - Loan Origination Commitments	6 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	100.00%	100.00%
California
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	45.60%	47.80%
Florida
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	8.80%	7.80%
Georgia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	8.00%	2.50%
Washington
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	6.40%	7.90%
New York
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	5.70%	6.70%
Colorado
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	3.90%	3.10%
Arizona
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	3.80%	4.80%
Virginia
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	3.60%	4.10%
South Carolina
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	2.20%	0.60%
Texas
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	2.00%	2.70%
Other US
Accounts, Notes, Loans and Financing Receivable [Line Items]
Percentage of Total Loan Commitment	10.00%	12.00%