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Indebtedness (Details) - USD ($) $ in Millions		6 Months Ended
		Sep. 30, 2017	Mar. 31, 2017
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 444.0	$ 444.2
Less: current portion		(36.0)	(31.8)
Less: unamortized debt issuance costs		(6.1)	(6.7)
Total long-term debt		401.9	405.7
Credit Facility [Abstract]
Short-term debt		67.6	73.4
Available for future borrowings		154.2
Long-term debt, fair value		164.0	170.0
Domestic Revolving Credit Facility [Member]
Credit Facility [Abstract]
Letters of credit outstanding		4.0
Available for future borrowings		134.1
Foreign Credit Agreements [Member]
Credit Facility [Abstract]
Short-term debt		30.7	33.0
Available for future borrowings		20.1
Term Loans [Member]
Long-term Debt and Capital Lease Obligations [Abstract]
Total debt		$ 272.3	268.9
Fiscal year of maturity		Mar. 31, 2022
Multi Currency Revolving Credit Facility [Member]
Credit Facility [Abstract]
Short-term debt		$ 36.9	40.4
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		$ 109.0	117.0
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]	$ 12.7	$ 8.3
Fiscal year of maturity	[1]	Mar. 31, 2032
[1] Other long-term debt includes borrowings by foreign subsidiaries, capital lease obligations and other financing-type obligations.

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Contractual interest rate for funds borrowed, under the debt agreement.

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-Publisher FASB
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Date the credit facility terminates, in CCYY-MM-DD format.

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