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Property, Plant and Equipment Consist (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Land $ 23,986 $ 21,387
Buildings and building improvements 106,679 92,507
Machinery and equipment 184,859 159,825
Construction in progress 8,753 4,864
Property, Plant and Equipment, Gross 324,277 278,583
Less: accumulated depreciation (192,131) (181,992)
Property, Plant and Equipment, Net $ 132,146 $ 96,591