Goodwill and Intangible Assets Textuals (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Property, plant, and equipment – net	$ 411.7	$ 384.3
Goodwill	37.2	37.2
Intangible assets	34.1	35.4
Florence Alabama Facility
Property, plant, and equipment – net	4.6
Goodwill	3.1
Intangible assets	$ 3.2
Period for possible impairment	12 months