Property, Plant and Equipment, net (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Components of property, plant and equipment net
Property, plant and equipment, gross	$ 837.7	$ 812.1
Less accumulated depreciation	717.5	689.3
Property, plant and equipment, net	120.2	122.8
Land and land improvements
Components of property, plant and equipment net
Property, plant and equipment, gross	10.7	10.5
Building and building improvements
Components of property, plant and equipment net
Property, plant and equipment, gross	95.0	93.2
Machinery and equipment
Components of property, plant and equipment net
Property, plant and equipment, gross	723.3	701.1
Capital leases
Components of property, plant and equipment net
Property, plant and equipment, gross	2.2	2.2
Construction in Progress
Components of property, plant and equipment net
Property, plant and equipment, gross	$ 6.5	$ 5.1