Property, Plant and Equipment, net (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components of property, plant and equipment net
Property, plant and equipment, gross	$ 748.3	$ 812.1
Less accumulated depreciation	644.6	689.3
Property, plant and equipment, net	103.7	122.8	157.0
Land and Land Improvements [Member]
Components of property, plant and equipment net
Property, plant and equipment, gross	9.9	10.5
Building and Building Improvements [Member]
Components of property, plant and equipment net
Property, plant and equipment, gross	86.9	93.2
Machinery and Equipment [Member]
Components of property, plant and equipment net
Property, plant and equipment, gross	639.6	701.1
Capital Leases [Member]
Components of property, plant and equipment net
Property, plant and equipment, gross	2.0	2.2
Assets in Process [Member]
Components of property, plant and equipment net
Property, plant and equipment, gross	$ 9.9	$ 5.1