Indebtedness (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2015	Mar. 31, 2015
Line of Credit Facility [Line Items]
Available for future borrowings	$ 210.0
Foreign Credit agreements [Member]
Debt Instrument [Line Items]
Short-term debt	21.1	$ 18.6
Line of Credit Facility [Line Items]
Available for future borrowings	35.0
Domestic Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Long-term debt, fair value	135.0	141.0
Line of Credit Facility [Line Items]
Amount outstanding	0.0	$ 0.0
Maximum borrowing capacity	$ 175.0
Expiration date	Aug. 31, 2018
6.8% Senior Notes [Member]
Debt Instrument [Line Items]
Long-term debt	$ 125.0
Stated interest rate (in hundredths)	6.80%