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Inventories - Components of Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 30, 2012
Inventory Disclosure [Abstract]    
Finished Goods $ 99,850 $ 87,094
Work in Process 9,402 7,030
Raw Materials 48,267 47,052
Total $ 157,519 $ 141,176