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Special Charges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2016
Other Nonrecurring (Income) Expense [Abstract] |  |  |
Employee separation costs | $ 1.2 | $ 39.1 | $ 9.6
Gain on sale of assets | (4.4) | 0.0 | 0.0
Impairment charges | 0.0 | 12.6 | 0.0
Contract exit costs | 0.7 | 44.1 | 0.7
Other | 0.0 | 2.8 | 0.9
Legal settlement costs | 0.0 | 0.0 | 4.3
Insurance settlement | 0.0 | 0.0 | (11.5)
Non-restructuring contract exit costs and other | 20.0 | 0.0 | 0.0
Total | $ 17.5 | $ 98.6 | $ 4.0

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