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Employment Benefit Plans Stock Compensation (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Payment Arrangement, Expense | $ 10,676 | $ 9,356 | $ 12,266
Total stock-based compensation (after-tax) (1) | $ 10,676 | $ 9,356 | 12,266
Common stock, shares authorized | 130,000,000 | 130,000,000 |
2013 Plan |  |  |
Share-based compensation expense [Abstract] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 4,000,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 4,000,000 |  |
2021 Plan |  |  |
Share-based compensation expense [Abstract] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 1,475,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 1,475,000 |  |
2024 Plan |  |  |
Share-based compensation expense [Abstract] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 4,350,000 |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | 4,350,000 |  |
Restricted Stock Units (RSUs) [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Payment Arrangement, Expense | $ 6,792 | $ 3,144 | 3,462
Performance Shares [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Payment Arrangement, Expense | 3,581 | 6,212 | 8,804
Share-based Payment Arrangement, Option [Member] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Payment Arrangement, Expense | 303 | 0 | 0
Pivix |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Share-based Payment Arrangement, Expense | 36 | 0 | 0
Deferred Compensation Arrangement with Individual, Compensation Expense | $ 331 | $ 0 | $ 0
Octave Specialty Limited |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Other Pension Plans Postretirement Defined Benefit Percent of | 10.00% |  |

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