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INVESTMENTS - Schedule of Fair Value of Equity Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | $ 1,465,833 | $ 117,756
Fixed income exchange traded funds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 1,329,544 | 0
Financials |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 134,177 | 116,400
Industrial, utilities and energy |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 1,402 | 312
Basic materials |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 437 | 595
Consumer |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 124 | 154
Healthcare |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | 99 | 32
Communications and technology |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Total | $ 50 | $ 263

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