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Property, Plant, and Equipment
9 Months Ended
Sep. 30, 2013
Property, Plant and Equipment [Abstract]  
Property, Plant, and Equipment
Property, Plant, and Equipment

A summary of costs for property, plant, and equipment is as follows:

 
September 30
2013
 
December 31,
2012
 
(in thousands)
Land and improvements
$
4,815

 
$
2,611

Buildings and improvements
1,613

 
1,223

Machinery and equipment
538,696

 
403,682

Automotive equipment
357

 
357

Furniture and fixtures
360

 
343

Railcars
7,995

 
2,496

Construction in progress
11,928

 
132,428

 
$
565,764

 
$
543,140

Less: Accumulated depreciation
150,054

 
131,540

Total property, plant and equipment, net
$
415,710

 
$
411,600


Capitalized interest recognized as a reduction of interest expense for the three months ended September 30, 2013 and 2012 totaled approximately $0.1 million and $0.9 million, respectively. Capitalized interest recognized as a reduction of interest expense for the nine months ended September 30, 2013 and 2012 totaled approximately $0.5 million and $2.1 million, respectively.