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v3.25.3

Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] |
| Pension Plan Adjustments | Other Post Retirement Employee Benefit Plan Adjustments | Total
Balance at December 31, 2023 | $ | (42.0) |  | $ | 11.3 |  | $ | (30.7) |
Amounts reclassified from accumulated other comprehensive loss | 0.1 |  | (0.2) |  | (0.1) |
Balance at September 30, 2024 | $ | (41.9) |  | $ | 11.1 |  | $ | (30.8) |
Balance at December 31, 2024 | $ | (47.8) |  | $ | 13.4 |  | $ | (34.5) |
Amounts reclassified from accumulated other comprehensive loss | 0.4 |  | (0.3) |  | 0.1 |
Balance at September 30, 2025 | $ | (47.4) |  | $ | 13.1 |  | $ | (34.3) |

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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