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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment in the accompanying Consolidated Balance Sheets consisted of the following amounts as of December 31, 2014 and 2013 (in thousands):
 
2014
 
2013
Machinery and equipment
$
120,528

 
$
116,376

Vehicles
45,036

 
49,296

Furniture and fixtures
20,693

 
22,036

Computer hardware/software
89,638

 
86,624

Land, buildings and leasehold improvements
81,206

 
77,923

Construction in progress
6,926

 
3,774

 
364,027

 
356,029

Accumulated depreciation and amortization
(241,849
)
 
(232,615
)
 
$
122,178

 
$
123,414


Depreciation and amortization expense related to property, plant and equipment, including capital leases, was $36.5 million, $36.3 million and $31.2 million for the years ended December 31, 2014, 2013 and 2012, respectively.