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Net investment income (Details) - Insurance Solutions - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Net Investment Income [Line Items] |  |
Investment income | $ 67,381 | $ 77,834
Investment expense | (3,958) | (3,196)
Net investment income | 78,990 | 92,790
Consolidated Entity, Excluding Consolidated VIE |  |
Net Investment Income [Line Items] |  |
Net investment income | 63,423 | 74,638
Variable Interest Entity, Primary Beneficiary |  |
Net Investment Income [Line Items] |  |
Investment income | 16,237 | 18,767
Investment expense | (670) | (615)
Net investment income | 15,567 | 18,152
Debt securities |  |
Net Investment Income [Line Items] |  |
Investment income | 45,499 | 54,253
Corporate loans |  |
Net Investment Income [Line Items] |  |
Investment income | 13,309 | 8,985
Derivatives |  |
Net Investment Income [Line Items] |  |
Derivative, Gain (Loss) on Derivative, Net | (1,230) | 0
Mortgage loans |  |
Net Investment Income [Line Items] |  |
Investment income | 7,564 | 9,091
Equity securities |  |
Net Investment Income [Line Items] |  |
Investment income | 683 | 1,765
Other |  |
Net Investment Income [Line Items] |  |
Investment income | $ 1,556 | $ 3,740

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