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Property, Plant and Equipment (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]    
Land $ 26,398 $ 23,986
Buildings and building improvements 112,208 106,679
Machinery and equipment 200,567 184,859
Construction in progress 9,543 8,753
Property, Plant and Equipment, Gross 348,716 324,277
Less: accumulated depreciation (206,634) (192,131)
Property, Plant and Equipment, Net $ 142,082 $ 132,146