Investments (Roll Forward of Cumulative Credit Losses Recorded in Earnings) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward] | ||
| Allowance for credit loss beginning balance | $ 1,598 | $ 1,267 |
| Reductions due to: | ||
| Securities sold during the period | 0 | (1,210) |
| Allowance for credit loss ending balance | $ 1,598 | $ 57 |