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Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Jan. 01, 2012
Schedule Of Inventory [Line Items]    
Finished Goods $ 87,399 $ 86,970
Work in Process 11,562 8,920
Raw Materials 48,801 44,595
Total $ 147,762 $ 140,485