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Inventories - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
Oct. 04, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials and supplies in inventory, percentage 40.00% 40.00%
Finished and semi-finished products in inventory, percentage 60.00% 60.00%
Inventories valued using the last-in, first-out 46.00% 45.00%
Increased value of inventory if FIFO method had been used $ 624.7 $ 624.7
Lower of cost or market adjustments $ 2.6 $ 2.1