Business Segments Business Segment Geographic Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 823.6	$ 854.7	$ 864.4
Property, Plant and Equipment, Net	122.8	157.0	189.4
North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	151.6	186.3	189.6
Property, Plant and Equipment, Net	27.1	30.2	35.3
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	135.9	168.0	170.6
Other North America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	15.7	18.3	19.0
South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	282.7	259.3	277.7
BRAZIL
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	223.9	193.4	224.6
Property, Plant and Equipment, Net	60.1	85.4	110.7
Other South America [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	58.8	65.9	53.1
Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	207.1	203.2	210.8
Property, Plant and Equipment, Net	15.2	16.6	13.4
Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	115.6	119.7	97.7
CHINA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	20.0	26.2	24.7
INDIA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	74.5	66.3	48.1
Property, Plant and Equipment, Net	20.4	24.8	30.0
Other Asia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	21.1	27.2	24.9
Middle East and Africa [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 66.6	$ 86.2	$ 88.6