General (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Nov. 30, 2016
New Accounting Guidance [Abstract]
Net periodic benefit cost	[1]	$ 0.8	$ 0.7
Luvata HTS [Member]
Business Acquisition [Line Items]
Acquired ownership interest by the entity				100.00%
ASU 2017-07 [Member] | Other Income and Expense [Member]
New Accounting Guidance [Abstract]
Net periodic benefit cost		0.8	0.7
ASU 2017-07 [Member] | Cost of Sales [Member]
New Accounting Guidance [Abstract]
Net periodic benefit cost			(0.3)
ASU 2017-07 [Member] | SG&A [Member]
New Accounting Guidance [Abstract]
Net periodic benefit cost			$ (0.4)
ASU 2016-09 [Member]
New Accounting Guidance [Abstract]
Cumulative increase to deferred tax assets		0.4
Cumulative increase to equity		$ 0.4

[1] Represents net periodic benefit cost, exclusive of service cost, for the Company's pension and postretirement plans.