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Property, Plant and Equipment
6 Months Ended
Jun. 30, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
Note 6 — Property, Plant and Equipment
The following table summarizes the components of property, plant and equipment.
                 
    June 30,     December 31,  
    2011     2010  
    (in thousands)  
Property, plant and equipment
               
Buildings
  $ 149,757     $ 149,021  
Machinery and equipment
    177,497       177,217  
 
           
 
    327,254       326,238  
Less accumulated depreciation
    (159,759 )     (149,304 )
 
           
Net property, plant and equipment
    167,495       176,934  
Land
    3,335       3,335  
Construction in process
    648       986  
 
           
Total property, plant and equipment
  $ 171,478     $ 181,255  
 
           
Depreciation expense
Depreciation expense for the three months ended June 30, 2011 and 2010 was $5.7 million and $6.0 million, respectively. Depreciation expense for the six months ended June 30, 2011 and 2010 was $11.5 million and $11.9 million, respectively.
Capitalized interest
In conjunction with the interest costs incurred related to the Unsecured Senior Fixed Rate Notes offering described in Note 10, the Company has been recording capitalized interest on certain property, plant and equipment capital projects. ARI also capitalized interest related to the investment in Axis during its developmental stage. The amount of interest capitalized for both the three months ended June 30, 2011 and 2010 was less than $0.1 million. The amount of interest capitalized for both the six months ended June 30, 2011 and 2010 was less than $0.1 million.
Lease agreements
The Company leases railcars to third parties under multiple year agreements. One of the leases includes a provision that allows the lessee to purchase any portion of the leased railcars at any time during the lease term for a stated market price, which approximates fair value. These agreements have been classified as operating leases and the leased railcars have been included in machinery and equipment and are depreciated in accordance with the Company’s depreciation policy.