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v3.25.3

Investments (Narrative) (Details) $ in Thousands | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) item security | Dec. 31, 2024 USD ($) security | Sep. 30, 2024 USD ($)
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair value | $ 469,285 | $ 508,604 |
Number of investments in a single issuer exceeds 10% of shareholders' equity | item | 0 |  |
Percent of shareholders equity benchmark for investments in a single issuer | 10.00% |  |
Number of debt securities | security | 484 | 538 |
Fair Value | $ 410,804 | $ 476,913 |
Unrealized Losses | 30,932 | 45,710 | $ 14,800
Public Funds And Trust Deposits [Member] |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Fair value | $ 386,900 | $ 207,200 |

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