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Net Investment Income | 12 Months Ended
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Dec. 31, 2024
Net Investment Income [Abstract] |
Net Investment Income | Net Investment Income Net investment income consists of the following:
(In thousands) | 2024 |  | 2023 |  | 2022
Investment income (loss) earned on: |  |  |  |  |
Fixed maturity securities, including cash and cash equivalents and loans receivable | $ | 1,260,429 |  |  | $ | 929,098 |  |  | $ | 549,281 |
Arbitrage trading account (1) | 69,573 |  |  | 69,369 |  |  | 45,213 |
Equity securities | 48,920 |  |  | 55,726 |  |  | 52,600 |
Investment funds | (11,491) |  |  | 16,743 |  |  | 145,099 |
Real estate | (23,616) |  |  | (11,185) |  |  | (3,087) |
Gross investment income | 1,343,815 |  |  | 1,059,751 |  |  | 789,106 |
Investment expense | (10,654) |  |  | (6,916) |  |  | (9,921) |
Net investment income | $ | 1,333,161 |  |  | $ | 1,052,835 |  |  | $ | 779,185 |

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