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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
  4. Property, Plant and Equipment

 

Property, plant and equipment consist of the following:

 

December 31,   2013     2012  
             
Land and improvements   $ 1,819     $ 1,308  
Buildings and improvements     39,034       29,539  
Machinery and equipment     172,987       133,635  
Dies and tools     36,287       31,231  
    $ 250,127     $ 195,713  

 

In 2013, the Company revised its estimate of the useful life of machinery and equipment from 10 to 7 years. This change, which became effective December 31, 2013, resulted in increased depreciation expense of $0.7 million for the year then ended. . The Company estimates that this change will increase depreciation expense for the machinery and equipment on hand at December 31, 2013 by approximately $7 million and $3 million in 2014 and 2015, respectively.