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Stock Compensation Plans and Other Employee Benefit Plans - Narrative (Details) - USD ($) | 12 Months Ended | 120 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2025 | Dec. 31, 2022 | May 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares approved for issuance (in shares) |  |  |  |  |  |  |  | 1,825,000
Shares available for future grants (in shares) | 2,185,493,000,000 |  |  |  |  | 2,185,493,000,000 |  |
Number of stock options granted (in shares) |  |  |  |  |  | 0 |  |
Stock-based compensation expense | $ 42,000,000.0 | $ 38,900,000 | $ 33,500,000 |  |  |  |  |
Tax benefit (expense) from stock-based compensation arrangements | 9,100,000 | 8,300,000 | 7,400,000 |  |  |  |  |
Aggregate intrinsic value of options exercised | 466,598 | 179,664 | 2,500,000 |  |  |  |  |
Actual tax benefit realized from option exercises | 90,000 | 30,000 | 540,000 |  |  |  |  |
Excess tax benefits from stock-based compensation arrangements | 220,000 | 86,457 | 2,200,000 |  |  |  |  |
Excess (deficit) tax benefit over estimate | 3,600,000 | 4,400,000 | 1,800,000 |  |  |  |  |
Unrecognized compensation cost | $ 47,700,000 |  |  |  |  | $ 47,700,000 |  |
Unrecognized compensation cost, period for recognition (in years) | 2 years |  |  |  |  |  |  |
Fair value of shares vested | $ 43,700,000 | 34,700,000 | 22,100,000 |  |  |  |  |
Expense for employer contribution to plan | 22,000,000.0 | 19,700,000 | 19,200,000 |  |  |  |  |
Cash Incentive and Retention Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Expense related to plan | 0 | 0 | 0 |  |  |  |  |
Cash awards paid | 0 | $ 0 | $ 0 |  |  |  |  |
Cash awards outstanding | $ 0 |  |  |  |  | $ 0 |  |
Directors Deferred Fee and Stock Plan |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Increase in shares authorized (in shares) |  |  |  |  | 200,000 |  |  |
Issued to directors (in shares) | 17,546 | 14,927 | 63,001 |  |  |  |  |
Obligation to issue (in shares) | 313,281 |  |  |  |  | 313,281 |  |
Available for future issuance under DDFS Plan (in shares) | 24,218 |  |  |  |  | 24,218 |  |
Stock Options |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Term (in years) | 10 years |  |  |  |  |  |  |
Stock Options | Minimum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award vesting period (in years) | 3 years |  |  |  |  |  |  |
Stock Options | Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award vesting period (in years) | 5 years |  |  |  |  |  |  |
Restricted Shares |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares outstanding (in shares) | 888,398 | 880,866 | 746,123 |  |  | 888,398 | 610,155 |
Restricted Shares | Minimum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award vesting period (in years) | 1 year |  |  |  |  |  |  |
Restricted Shares | Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award vesting period (in years) | 5 years |  |  |  |  |  |  |
Performance Shares |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Award vesting period (in years) | 3 years |  |  |  |  |  |  |
Performance period (in years) | 3 years |  |  |  |  |  |  |
Shares outstanding (in shares) | 377,757 | 454,017 | 553,026 |  |  | 377,757 | 545,379 |
Performance Shares | Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Shares outstanding (in shares) | 560,000 |  |  |  |  | 560,000 |  |
LTIP Awards | Minimum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of performance based award payouts (as a percent) | 0.00% |  |  |  |  |  |  |
LTIP Awards | Maximum |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of performance based award payouts (as a percent) | 150.00% |  |  |  |  |  |  |
ESPP |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |  |
Percentage of purchase price of shares | 95.00% |  |  |  |  |  |  |
Employee stock purchase plan issuance (in shares) | 29,708 | 32,942 | 46,034 |  |  |  |  |
Compensation expense employee stock purchase plan | $ 0 | $ 0 | $ 0 |  |  |  |  |
Increase in shares authorized (in shares) |  |  |  | 200,000 |  |  |  |
Common stock obligation to issue (in shares) | 6,038 |  |  |  |  | 6,038 |  |
Available for future grants under ESPP (in shares) | 103,788 |  |  |  |  | 103,788 |  |

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