Indebtedness (Details) - USD ($) $ in Millions		3 Months Ended
		Jun. 30, 2018	Mar. 31, 2018
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 418.1	$ 431.6
Less: current portion		(41.2)	(39.9)
Less: unamortized debt issuance costs		(5.0)	(5.4)
Total long-term debt		371.9	386.3
Credit Facility [Abstract]
Short-term debt		93.2	53.2
Available for future borrowings		109.8
Long-term debt, fair value		148.2	153.1
Domestic Revolving Credit Facility [Member]
Credit Facility [Abstract]
Letters of credit outstanding		4.3
Available for future borrowings		108.6
Foreign Credit Agreements [Member]
Credit Facility [Abstract]
Short-term debt		31.1	31.9
Available for future borrowings		1.2
Term Loans [Member]
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 257.0	267.8
Fiscal year of maturity		Mar. 31, 2022
Multi Currency Revolving Credit Facility [Member]
Credit Facility [Abstract]
Short-term debt		$ 62.1	21.3
Maximum borrowing capacity		$ 175.0
Expiration date		Nov. 30, 2021
6.8% Senior Notes [Member]
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 97.0	101.0
Interest rate percentage		6.80%
Fiscal year of maturity		Mar. 31, 2021
5.8% Senior Notes [Member]
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 50.0	50.0
Interest rate percentage		5.80%
Fiscal year of maturity		Mar. 31, 2027
Other [Member]
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt	[1]	$ 14.1	$ 12.8
Fiscal year of maturity	[1]	Mar. 31, 2034

[1] (a) Other long-term debt includes borrowings by foreign subsidiaries, capital lease obligations and other financing-type obligations.