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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Statement of Financial Position [Abstract] |  |
Amortized cost on fixed maturities trading investments | $ 4,394,983 | $ 4,226,790
Cost - equity security trading investments | 654,939 | 668,843
Cost - short-term investments | 179,375 | 123,928
Reinsurance recoverable, allowance for credit losses | $ (12) | $ 0
Common Stock |  |
Common stock, shares authorized (in shares) | 70,000,000 | 70,000,000
Common stock, shares issued (in shares) | 55,371,000 | 55,371,000
Common stock, shares outstanding (in shares) | 55,371,000 | 55,371,000

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