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FAIR VALUE - Available for Sale Investment Portfolio (Details) - Ardellis Insurance Ltd. - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Available-for-sale securities |  |
Total Securities Cost | $ 59,397 | $ 54,039
Unrealized Gain (Loss) | 937 | 1,603
Total Fair Value | 60,334 | 55,642
Fixed Income |  |
Available-for-sale securities |  |
Debt Securities Cost | 25,336 | 21,399
Debt Securities Unrealized Gain/(Loss) | (2,408) | (2,113)
Debt Securities Fair Value | 22,928 | 19,286
Treasury securities |  |
Available-for-sale securities |  |
Debt Securities Cost | 344 | 343
Debt Securities Fair Value | 344 | 343
Equity |  |
Available-for-sale securities |  |
Equity Securities Cost | 13,349 | 15,762
Equity Securities Unrealized Gain/(Loss) | 1,406 | 1,575
Equity Securities Fair Value | 14,755 | 17,337
Mutual Fund |  |
Available-for-sale securities |  |
Debt Securities Cost | 17,184 | 13,430
Debt Securities Unrealized Gain/(Loss) | 939 | 1,144
Debt Securities Fair Value | 18,123 | 14,574
Alternative Investments |  |
Available-for-sale securities |  |
Debt Securities Cost | 3,184 | 3,105
Debt Securities Unrealized Gain/(Loss) | 1,000 | 997
Debt Securities Fair Value | $ 4,184 | $ 4,102

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