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v3.25.0.1

Pensions (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2026
Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Net periodic benefit cost | [1] | $ 1.2 | $ 0.8 | $ 3.5 | $ 2.5 |
Pension |  |  |  |  |  |
Net Periodic Benefit Cost [Abstract] |  |  |  |  |  |
Service cost |  | 0.0 | 0.0 | 0.1 | 0.1 |
Interest cost |  | 2.3 | 2.3 | 6.8 | 7.1 |
Expected return on plan assets |  | (2.2) | (2.5) | (6.5) | (7.7) |
Amortization of unrecognized net loss |  | 1.2 | 1.1 | 3.5 | 3.4 |
Net periodic benefit cost |  | 1.3 | $ 0.9 | 3.9 | 2.9 |
Pension | UNITED STATES |  |  |  |  |  |
Defined Benefit Plan, Additional Information [Abstract] |  |  |  |  |  |
Contribution U.S. pension plan |  |  |  | 6.5 | $ 0.0 |
Pension | UNITED STATES | Minimum |  |  |  |  |  |
Termination of U.S. Pension Plans [Abstract] |  |  |  |  |  |
Expected employer contribution during fiscal 2026 |  | 10.0 |  | 10.0 |  |
Pension | UNITED STATES | Maximum |  |  |  |  |  |
Termination of U.S. Pension Plans [Abstract] |  |  |  |  |  |
Expected employer contribution during fiscal 2026 |  | $ 20.0 |  | $ 20.0 |  |
Pension | UNITED STATES | Termination plan | Minimum |  |  |  |  |  |
Termination of U.S. Pension Plans [Abstract] |  |  |  |  |  |
Non-cash pension settlement charges |  |  |  |  |  | $ (115.0)
Pension | UNITED STATES | Termination plan | Maximum |  |  |  |  |  |
Termination of U.S. Pension Plans [Abstract] |  |  |  |  |  |
Non-cash pension settlement charges |  |  |  |  |  | $ (125.0)
[1] | Net periodic benefit cost for the Company’s pension and postretirement plans is exclusive of service cost.

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