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Net Investment (Losses) Gains (Net Investment Gains (Losses)) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Investments, Debt and Equity Securities [Abstract] |  |  |  |
Fixed maturity securities, gains | $ 3,092 | $ 115 | $ 6,649 | $ 1,058
Fixed maturity securities, losses | (5,362) | (3,640) | (7,685) | (21,770)
Net realized gains on investment sales (2) | 61,521 | 111,072 | 101,798 | 112,132
Change in unrealized (losses) gains | (66,717) | 21,260 | (40,905) | 64,664
Investment funds | 217 | (98) | 1,210 | (88)
Real estate (3) | (1,958) | (55,449) | (4,174) | (44,710)
Loans receivable | 0 | 0 | 0 | 0
Other (4) | (51,099) | (4,613) | (105,696) | (20,028)
Net realized and unrealized (losses) gains on investments in earnings before allowance for expected credit losses | (60,306) | 68,647 | (48,803) | 91,258
Fixed maturity securities | 998 | (7,052) | 14,879 | (6,835)
Loans receivable | 796 | (2,941) | 1,191 | (2,759)
Change in allowance for expected credit losses on investments | 1,794 | (9,993) | 16,070 | (9,594)
Net investment (losses) gains | (58,512) | 58,654 | (32,733) | 81,664
Income tax benefit | $ 12,401 | (12,587) | $ 5,769 | (17,437)
After-tax net investment (losses) gains |  | $ 46,067 |  | $ 64,227

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