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Components of Inventories (Detail) - USD ($)
$ in Thousands
Dec. 26, 2015
Dec. 27, 2014
Inventory [Line Items]    
Raw Materials $ 42,123 $ 39,535
Work in process 8,876 7,391
Finished Goods 8,261 10,793
Inventory, Gross 59,260 57,719
Less portion in other long term assets (2,798) (6,412)
Inventories 56,462 51,307
Inventory, Gross $ 59,260 $ 57,719