Contingencies and Litigation (Details) BRL in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2016 BRL	Dec. 31, 2016 USD ($) Site	Sep. 30, 2016 USD ($)	Sep. 30, 2016 BRL	Mar. 31, 2016 USD ($)	Mar. 31, 2016 BRL
Environmental Matters [Abstract]
Number of sites remediation considered for potentially responsible party | Site			3
Reserves for environmental matters | $	$ 5.1		$ 5.1			$ 5.1
Legal Matters [Abstract]
Minimum period of alleged violations of antitrust regulations			7 years
Selling, General and Administrative Expenses [Member]
Legal Matters [Abstract]
Litigation settlement expense	1.6	BRL 5.0
CADE [Member]
Legal Matters [Abstract]
Litigation settlement expense	$ 4.6	BRL 15.0
Minimum [Member]
Legal Matters [Abstract]
Brazil legal matter				$ 4.7	BRL 15.0	$ 2.8	BRL 10.0