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Other Financial Statement Information - Property, Plant and Equipment - Net (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross $ 231,229 $ 218,470
Less accumulated depreciation 130,768 125,144
Property and equipment - Net 100,461 93,326
Land and Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 12,141 13,190
Buildings and Improvements [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 69,963 59,505
Machinery and Equipment [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 141,940 138,533
Construction in Progress [Member]
    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross $ 7,185 $ 7,242