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Share-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | ---
Feb. 29, 2024 $ / shares shares | Jun. 30, 2024 USD ($) plan shares | Jun. 30, 2024 USD ($) plan $ / shares shares | Jun. 30, 2023 $ / shares shares | Dec. 31, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of incentive plans | plan |  | 2 | 2 |  |
Options granted (in shares) | shares |  |  |  | 385,500 |
Weighted average fair value of options granted (in US dollars per share) | $ / shares |  |  | $ 7.36 | $ 10.56 |
Aggregate intrinsic value of stock options outstanding |  | $ 16.5 | $ 16.5 |  | $ 12.8
Unrecognized compensation cost |  | $ 2.9 | $ 2.9 |  |
2019 Stock Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Options granted (in shares) | shares |  |  | 431,000 |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Shares issued in period (in shares) | shares | 15,000 |  |  |  |
Shares issued in period (in dollars per shares) | $ / shares | $ 57.76 |  |  |  |
Stock option plan, award vesting period | 5 years |  |  |  |
Restricted stock vested shares (in shares) | shares |  | 3,970 |  |  |
Restricted stock non-vested shares (in shares) | shares |  | 31,800 | 31,800 |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan | Tranche One |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting rights, percentage | 20.00% |  |  |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan | Tranche Two |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting rights, percentage | 20.00% |  |  |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan | Tranche Three |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting rights, percentage | 20.00% |  |  |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan | Tranche Four |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting rights, percentage | 20.00% |  |  |  |
Restricted stock expense | Executive Officer | 2019 Stock Incentive Plan | Tranche Five |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Award vesting rights, percentage | 20.00% |  |  |  |
Expected To Be Recognized Remainder Of 2023 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | $ 1.3 | $ 1.3 |  |
Expected To Be Recognized During 2024 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | 1.1 | 1.1 |  |
Expected To Be Recognized During 2025 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | 0.3 | 0.3 |  |
Expected To Be Recognized During 2026 |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | 0.1 | 0.1 |  |
Expected To Be Recognized During Thereafter |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Unrecognized compensation cost |  | $ 0.1 | $ 0.1 |  |

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