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Property and Equipment
9 Months Ended
Sep. 30, 2013
Property, Plant and Equipment [Abstract]  
Property and Equipment
Property and Equipment
Property and equipment are as follows (in thousands):
 
 
September 30, 2013
 
December 31, 2012
Land
 
$
5,078

 
$
1,442

Buildings and leasehold improvements
 
30,252

 
18,520

Machinery, equipment and rental tools
 
70,420

 
54,279

Equipment in progress
 
5,389

 
9,382

Furniture and fixtures
 
2,398

 
1,358

Transportation equipment
 
5,710

 
5,136

Computer equipment and software
 
5,880

 
6,743

Property and equipment
 
125,127

 
96,860

Less accumulated depreciation
 
(47,858
)
 
(40,361
)
Property and equipment, net
 
$
77,269

 
$
56,499


Depreciation expense, including expense recorded in cost of revenue, totaled $3.0 million and $2.4 million for the three months ended September 30, 2013 and 2012, respectively, and $8.4 million and $6.9 million for the nine months ended September 30, 2013 and 2012, respectively.