Retirement and Postretirement Plans - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Pension | ||
| Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Unrecognized prior service (benefit) cost | $ 9.1 | $ 10.3 |
| Pension | United States of America | Bargaining Plan | ||
| Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Unrecognized prior service (benefit) cost | 8.6 | 9.9 |
| Pension | Foreign Plan [Member] | ||
| Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Unrecognized prior service (benefit) cost | 0.5 | 0.4 |
| Postretirement | ||
| Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Unrecognized prior service (benefit) cost | $ (32.0) | $ (38.0) |