LOANS (Commercial Real Estate Loans, at Amortized Cost) (Details) $ in Thousands	Jun. 30, 2024 USD ($) Loan	Dec. 31, 2023 USD ($) Loan
Receivables With Imputed Interest [Line Items]
CRE loans	$ 1,713,711	$ 1,857,093
Commercial Real Estate Loans
Receivables With Imputed Interest [Line Items]
CRE loans	1,713,711	1,857,093
Commercial Real Estate Loans \| Whole Loans in Default
Receivables With Imputed Interest [Line Items]
CRE loans	$ 14,400	$ 41,200
Number of loans \| Loan	1	3
Commercial Real Estate Loans
Receivables With Imputed Interest [Line Items]
2024	$ 448,633	$ 916,985
2025	983,679	814,772
2026 and Thereafter	267,001	84,184
Amortized Cost, Loans held for investment	$ 1,699,313	$ 1,815,941
Commercial Real Estate Loans \| Whole Loans in Default
Receivables With Imputed Interest [Line Items]
Number of loans \| Loan	1	3
Commercial Real Estate Loans \| Whole Loans
Receivables With Imputed Interest [Line Items]
2024	$ 448,633	$ 916,985
2025	983,679	814,772
2026 and Thereafter	262,301	79,484
Amortized Cost, Loans held for investment	1,694,613	1,811,241
Commercial Real Estate Loans \| Mezzanine loan
Receivables With Imputed Interest [Line Items]
2026 and Thereafter	4,700	4,700
Amortized Cost, Loans held for investment	4,700	4,700
Commercial Real Estate Loans \| Whole Loans \| Whole Loan in Extension Option
Receivables With Imputed Interest [Line Items]
2024	5,600	80,400
2025	101,500	101,700
2026 and Thereafter	$ 1,600,000	$ 1,600,000

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