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Stock-Based Compensation Plans (Information Regarding Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Outstanding (in shares) | 114,943 |  |
Exercisable (in shares) | 114,943 | 0 | 0
Share-Based Compensation Arrangement By Share-Based Payment Award, Options, Vested In Period, Grant Date Fair Value | $ 2.0 |  |
Outstanding (in dollars per share) |  | $ 48.63 |
Granted (in shares) | 0 | 0 | 0
Canceled (in shares) | 0 | 0 | 0
Vested (in shares) | 0 | 0 | 0
Stock Options |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
General vesting period (years) | 3 years |  |
General expiration period, from date of grant or time of termination (years) | 10 years |  |
Recognition of unearned compensation, (years) | 3 years |  |
Weighted Average Remaining Contractual Life | 3 years 3 months 18 days | 4 years 3 months 18 days | 5 years 3 months 18 days

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