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Pension and Employee Benefit Plans, Defined Benefit Employee Benefit Plans (Details) - USD ($) $ in Millions | 12 Months Ended
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Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2023
Employer Contributions [Abstract] |  |  |  |  |  |
Net periodic benefit cost (income) | [1] |  | $ 4.6 |  | $ 3.3 | $ 2.0
U.S. Pension Plans |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Employer contributions |  |  | 7.6 |  | 2.7 |
Net periodic benefit cost (income) |  |  | 5.1 |  | 3.8 | 2.4
Settlements |  |  | (0.1) | [2] | (0.1) | 0.0
U.S. Pension Plans | U.S. Plans |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Employer contributions |  |  | 6.5 |  | 0.9 | 0.0
U.S. Pension Plans | U.S. Plans | Minimum |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Expected contribution |  | $ 15.0 |  |  |  |
U.S. Pension Plans | U.S. Plans | Minimum | Plan [Member] |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Settlements |  | 115.0 |  |  |  |
U.S. Pension Plans | U.S. Plans | Maximum |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Expected contribution |  | 20.0 |  |  |  |
U.S. Pension Plans | U.S. Plans | Maximum | Plan [Member] |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Settlements |  | $ 125.0 |  |  |  |
U.S. Pension Plans | Non-U.S Plans |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Employer contributions |  |  | 1.1 |  | 1.8 | 1.5
Postretirement Plans |  |  |  |  |  |
Employer Contributions [Abstract] |  |  |  |  |  |
Net periodic benefit cost (income) |  |  | $ (0.3) |  | $ (0.4) | $ (0.3)
[1] | Net periodic benefit cost for the Company’s pension and postretirement plans is exclusive of service cost.
[2] | The settlement charges resulted from activity associated with the Company’s non-U.S. pension plans.

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