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Share-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 28, 2025 | Sep. 30, 2025 | Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options granted (in shares) |  |  | 431,000
Weighted average fair value of options granted (in US dollars per share) |  | $ 9.34 | $ 7.36
Aggregate intrinsic value of stock options outstanding |  | $ 16.7 |
Aggregate intrinsic value of stock options exercisable |  | 12.6 |
Unrecognized compensation cost |  | $ 4.1 |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Shares issued in period (in shares) | 29,500 |  |
Shares issued in period (in dollars per shares) | $ 73.34 |  |
Stock option plan, award vesting period | 5 years |  |
Stock option plan, award post vesting hold period | 1 year |  |
Restricted stock vested shares (in shares) |  | 7,200 |
Restricted stock non-vested shares (in shares) |  | 54,100 |
Restricted stock weighted average fair value of non-vested options (in US dollars per share) |  | $ 64.29 |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche One |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting rights, percentage | 20.00% |  |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Two |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting rights, percentage | 20.00% |  |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Three |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting rights, percentage | 20.00% |  |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Four |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting rights, percentage | 20.00% |  |
Restricted stock awards | 2019 Stock Incentive Plan | Executive Officer | Tranche Five |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Award vesting rights, percentage | 20.00% |  |
2019 Stock Incentive Plan |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Options granted (in shares) |  | 579,500 |
Expected To Be Recognized Remainder Of 2025 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost |  | $ 1.0 |
Expected To Be Recognized During 2026 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost |  | 2.0 |
Expected To Be Recognized During 2027 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost |  | 0.7 |
Expected To Be Recognized During 2028 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost |  | 0.3 |
Expected To Be Recognized During 2029 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Unrecognized compensation cost |  | $ 0.1 |

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