FINANCING RECEIVABLES (Credit Risk Profiles of CRE Loans by Origination Year at Amortized Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Mar. 31, 2026
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year write offs, Prior	$ (4,700)
Loans and receivables by origination year write offs, Total	(4,700)
Commercial Real Estate Loans
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	807,326	$ 423,548
Loans and receivables by origination year, 2025/2024	109,619	785,613
Loans and receivables by origination year, 2024/2023	65,367	114,807
Loans and receivables by origination year, 2023/2022	326,946	45,355
Loans and receivables by origination year, 2022/2021	445,756	294,606
Loans and receivables by origination year, Prior	75,353	538,908
Loans and receivables by origination year, Total	1,830,367	2,202,837
Commercial Real Estate Loans \| Whole Loans
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	797,901	423,548
Loans and receivables by origination year, 2025/2024	109,619	775,941
Loans and receivables by origination year, 2024/2023	65,367	114,807
Loans and receivables by origination year, 2023/2022	326,946	45,355
Loans and receivables by origination year, 2022/2021	445,756	294,606
Loans and receivables by origination year, Prior	75,353	538,908
Loans and receivables by origination year, Total	1,820,942	2,193,165
Commercial Real Estate Loans \| Whole Loans \| Rating 1
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	0	0
Loans and receivables by origination year, 2025/2024	0	0
Loans and receivables by origination year, 2024/2023	0	0
Loans and receivables by origination year, 2023/2022	0	0
Loans and receivables by origination year, 2022/2021	28,137	0
Loans and receivables by origination year, Prior	0	28,154
Loans and receivables by origination year, Total	28,137	28,154
Commercial Real Estate Loans \| Whole Loans \| Rating 2
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	649,712	406,943
Loans and receivables by origination year, 2025/2024	22,249	625,955
Loans and receivables by origination year, 2024/2023	49,376	27,021
Loans and receivables by origination year, 2023/2022	0	29,359
Loans and receivables by origination year, 2022/2021	203,263	0
Loans and receivables by origination year, Prior	13,816	234,514
Loans and receivables by origination year, Total	938,416	1,323,792
Commercial Real Estate Loans \| Whole Loans \| Rating 3
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	10,283	16,605
Loans and receivables by origination year, 2025/2024	0	10,286
Loans and receivables by origination year, 2024/2023	0	0
Loans and receivables by origination year, 2023/2022	235,271	0
Loans and receivables by origination year, 2022/2021	214,356	202,888
Loans and receivables by origination year, Prior	10,961	225,538
Loans and receivables by origination year, Total	470,871	455,317
Commercial Real Estate Loans \| Whole Loans \| Rating 4
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	137,906	0
Loans and receivables by origination year, 2025/2024	87,370	139,700
Loans and receivables by origination year, 2024/2023	15,991	87,786
Loans and receivables by origination year, 2023/2022	91,675	15,996
Loans and receivables by origination year, 2022/2021	0	91,718
Loans and receivables by origination year, Prior	44,962	45,088
Loans and receivables by origination year, Total	377,904	380,288
Commercial Real Estate Loans \| Whole Loans \| Rating 5
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	0	0
Loans and receivables by origination year, 2025/2024	0	0
Loans and receivables by origination year, 2024/2023	0	0
Loans and receivables by origination year, 2023/2022	0	0
Loans and receivables by origination year, 2022/2021	0	0
Loans and receivables by origination year, Prior	5,614	5,614
Loans and receivables by origination year, Total	5,614	5,614
Commercial Real Estate Loans \| Preferred equity investment \| Rating 2
Financing Receivable Recorded Investment [Line Items]
Loans and receivables by origination year, 2026/2025	9,425	0
Loans and receivables by origination year, 2025/2024	0	9,672
Loans and receivables by origination year, 2024/2023	0	0
Loans and receivables by origination year, 2023/2022	0	0
Loans and receivables by origination year, 2022/2021	0	0
Loans and receivables by origination year, Prior	0	0
Loans and receivables by origination year, Total	$ 9,425	$ 9,672

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