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Inventories (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 30, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials $ 12,958 $ 13,101
Work-in-process 7,521 4,472
Finished goods 7,955 8,121
Inventories $ 28,434 $ 25,694