v3.25.4

Reclassifications out of Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Dec. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of Accumulated Balances and Reporting Period Activities Related to Reclassifications Out of Accumulated Other Comprehensive Loss | The accumulated balances and reporting period activities for the three months ended December 31, 2025 and 2024 related to reclassifications out of accumulated other comprehensive loss are summarized as follows (in millions):
| Pension Related Adjustments |  | Foreign Currency Translation Adjustments |  | Gain/(Loss) on Derivative Instruments |  | Accumulated Other Comprehensive Loss
Balances at September 30, 2025 | $ | (251.4) |  |  | $ | (652.4) |  |  | $ | 10.8 |  |  | $ | (893.0) |
Other comprehensive (loss) income before reclassification | 0.4 |  |  | 5.3 |  |  | 0.5 |  |  | 6.2 |
Amounts reclassified from accumulated other comprehensive (loss) income | 0.6 |  |  |  |  | (1.8) |  |  | (1.2) |
Balances at December 31, 2025 | $ | (250.4) |  |  | $ | (647.1) |  |  | $ | 9.5 |  |  | $ | (888.0) |
| Pension Related Adjustments |  | Foreign Currency Translation Adjustments |  | Gain/(Loss) on Derivative Instruments |  | Accumulated Other Comprehensive Loss
Balances at September 30, 2024 | $ | (252.0) |  |  | $ | (646.5) |  |  | $ | 15.8 |  |  | $ | (882.7) |
Other comprehensive (loss) income before reclassification | 13.8 |  |  | (105.5) |  |  | 11.9 |  |  | (79.8) |
Amounts reclassified from accumulated other comprehensive (loss) income | 0.5 |  |  | — |  |  | (2.8) |  |  | (2.3) |
Balances at December 31, 2024 | $ | (237.7) |  |  | $ | (752.0) |  |  | $ | 24.9 |  |  | $ | (964.8) |

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