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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
6.
Property, Plant and Equipment
Property, Plant and Equipment and related Accumulated Depreciation, including equipment under capital leases, as of December 31, consisted of the following:
 
2014
 
2013
Land
$
4,265

 
$
4,311

Buildings and improvements
52,962

 
53,490

Machinery and manufacturing equipment
117,622

 
143,413

Office equipment
73,677

 
91,048

Work in progress
13,688

 
8,644

Total Property, Plant and Equipment
262,214

 
300,906

Less: Accumulated Depreciation
(175,671
)
 
(217,430
)
Net Property, Plant and Equipment
$
86,543

 
$
83,476


Depreciation expense was $17,694 in 2014, $17,686 in 2013 and $18,072 in 2012.