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Employee Benefits (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Retirement Benefits [Abstract] |  |  |
Non-discretionary contributions | $ 6.0 | $ 4.6 | $ 4.3
Plan assets | 32.4 | 27.4 |
Underfunded pension obligation | 2.6 | 2.8 |
Net periodic benefit cost | $ 1.0 | $ 0.5 | $ 1.1

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