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Share-Based Compensation (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
May 11, 2017 | Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | May 05, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Restricted stock units |  |  |  | 824 |  |
Share-based compensation expense |  | $ 3.5 | $ 1.8 | $ 6.1 | $ 4.2 |
Employees and Directors [Member] | 2017 Long-Term Incentive Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares available for grant | 3,300 |  |  |  |  | 1,500
Employees and Directors [Member] | 2007 Long-Term Incentive Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Underlying equity awards issued | 1,700 |  |  |  |  |

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- Definition Line items represent financial concepts included in a table. 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