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Fair Value Measurements (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Fair Value Measurements [Abstract] |  |  |
Investments | $ 2.9 | $ 2.8 |
Deferred compensation obligations | $ 2.9 | 2.8 |
Notice period for redeeming real estate investment funds | 90 days |  |
Notice period for redeeming fixed income investment funds | 60 days |  |
U.S. Pension Plans [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | $ 179.9 | 183.3 | $ 131.1
U.S. Pension Plans [Member] | Money Market Investments [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 2.2 | 2.5 |
U.S. Pension Plans [Member] | Fixed Income Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 9.1 | 8.9 |
U.S. Pension Plans [Member] | Pooled Equity Funds [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 40.4 | 37.3 |
U.S. Pension Plans [Member] | U.S. Government and Agency Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 11.8 | 14.5 |
U.S. Pension Plans [Member] | Other [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 1.5 | 1.1 |
U.S. Pension Plans [Member] | Total [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 65.0 | 64.3 |
U.S. Pension Plans [Member] | Level 1 [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 40.5 | 37.4 |
U.S. Pension Plans [Member] | Level 1 [Member] | Money Market Investments [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
U.S. Pension Plans [Member] | Level 1 [Member] | Fixed Income Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
U.S. Pension Plans [Member] | Level 1 [Member] | Pooled Equity Funds [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 40.4 | 37.3 |
U.S. Pension Plans [Member] | Level 1 [Member] | U.S. Government and Agency Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
U.S. Pension Plans [Member] | Level 1 [Member] | Other [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.1 | 0.1 |
U.S. Pension Plans [Member] | Level 2 [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 24.5 | 26.9 |
U.S. Pension Plans [Member] | Level 2 [Member] | Money Market Investments [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 2.2 | 2.5 |
U.S. Pension Plans [Member] | Level 2 [Member] | Fixed Income Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 9.1 | 8.9 |
U.S. Pension Plans [Member] | Level 2 [Member] | Pooled Equity Funds [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
U.S. Pension Plans [Member] | Level 2 [Member] | U.S. Government and Agency Securities [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 11.8 | 14.5 |
U.S. Pension Plans [Member] | Level 2 [Member] | Other [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 1.4 | 1.0 |
U.S. Pension Plans [Member] | Level 3 [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
U.S. Pension Plans [Member] | Net Asset Value [Member] |  |  |
Fair Value Measurements [Abstract] |  |  |
Fair value of plan assets | $ 114.9 | $ 119.0 |

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