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Other Financial Statement Information - Property, Plant and Equipment - Net (Detail) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross $ 224,874 $ 237,355
Less accumulated depreciation 132,665 134,824
Property and equipment - Net 92,209 102,531
Land and Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 12,219 14,173
Buildings and Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 72,093 75,587
Machinery and Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross 136,475 144,213
Construction in Progress [Member]    
Property, Plant and Equipment [Line Items]    
Property and equipment - Gross $ 4,087 $ 3,382