Goodwill and Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Mar. 31, 2013
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 28.7
Fluctuations in foreign currency	(1.1)
Goodwill, Ending Balance	27.6
Amortized intangible assets [Abstract]
Gross Carrying Value	13.0		13.1
Accumulated Amortization	(4.9)		(4.8)
Net Intangible Assets	8.1		8.3
Amortization Expense	0.2	0.2
Amortization expense, fiscal year maturity [Abstract]
Remainder of 2014	0.6
2015	1.1
2016	1.2
2017	1.2
2018	1.2
2019 & Beyond	2.8
Tradenames [Member]
Amortized intangible assets [Abstract]
Gross Carrying Value	9.5		9.6
Accumulated Amortization	(4.8)		(4.7)
Net Intangible Assets	4.7		4.9
Acquired technology [Member]
Amortized intangible assets [Abstract]
Gross Carrying Value	3.5		3.5
Accumulated Amortization	(0.1)		(0.1)
Net Intangible Assets	3.4		3.4
Asia [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	0.5
Fluctuations in foreign currency	0
Goodwill, Ending Balance	0.5
South America [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	12.2
Fluctuations in foreign currency	(1.1)
Goodwill, Ending Balance	11.1
Commercial Products [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	16.0
Fluctuations in foreign currency	0
Goodwill, Ending Balance	$ 16.0