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Contingencies and Litigation (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Mar. 31, 2012
Contingencies and Litigation [Abstract] |  |  |
Value added tax payable | $ 5.0 |  | $ 10.7
Environmental Matters [Abstract] |  |  |
Reserves for these environmental matters | 5.7 |  | 6.9
Additional reserve, continuing operations | $ 0.1 | $ 0.9 |

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