Restructuring Activities (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Restructuring and repositioning expenses [Abstract]
Employee severance and related benefits	$ 1.5	$ 0.1
Other restructuring and repositioning expenses	0.3	0.1
Total	1.8	0.2
Changes in accrued severance [Roll Forward]
Beginning balance	10.0	11.0
Additions	1.5	0.1
Payments	(3.7)	(5.8)
Effect of exchange rate changes	0.0	(0.5)
Ending balance	$ 7.8	$ 4.8