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Inventories (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Inventory Disclosure [Abstract]    
Raw materials $ 78.9 $ 66.5
In process 52.9 46.1
Finished products 151.6 133.8
Other 31.4 32.2
Total inventories $ 314.8 $ 278.6