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Inventories (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Raw materials and work-in-progress $ 241.0 $ 220.3
Finished goods 27.9 25.0
Gross inventories 268.9 245.3
Inventory valuation reserves (28.3) (21.0)
Inventories, net $ 240.6 $ 224.3