Other Income and Expense (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Other Income and Expense [Abstract]
Equity in earnings of non-consolidated affiliate		$ 0.0	$ 0.1	$ 0.1	$ 0.2
Interest income		0.1	0.1	0.3	0.3
Foreign currency transactions	[1]	(0.4)	(0.6)	(1.0)	(1.0)
Total other expense - net		$ (0.3)	$ (0.4)	$ (0.6)	$ (0.5)

[1] Foreign currency transactions primarily consist of foreign currency transaction gains and losses on the re-measurement or settlement of foreign currency-denominated assets and liabilities, including intercompany loans and transactions denominated in a foreign currency, along with gains and losses on foreign currency exchange contracts.