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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2015
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
4. Property, Plant and Equipment

 

Property, plant and equipment consist of the following:

  

December 31,   2015     2014  
             
Land and improvements   $ 1,930     $ 1,926  
Buildings and improvements     46,354       42,432  
Machinery and equipment     216,055       201,562  
Dies and tools     44,258       42,316  
    $ 308,597     $ 288,236  

 

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 $2.5 million and $7.1 million for 2015 and 2014, respectively. The Company estimates that this change will decrease depreciation expense for the machinery and equipment that was on hand at December 31, 2013 by approximately $1.2 million in 2016.