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Inventories (Detail) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Inventory Disclosure [Line Items]    
Finished goods $ 194,600,000 $ 189,900,000
Work in process 19,100,000 21,300,000
Raw materials 114,800,000 108,000,000
Inventory, net, total $ 328,500,000 $ 319,200,000