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Inventories, Net (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 29, 2012
Dec. 31, 2011
Inventories    
Finished goods $ 41,248 $ 54,089
Work in process 14,613 9,574
Raw materials and supplies 42,948 40,248
Total Inventories $ 98,809 $ 103,911