XML 56 R59.htm IDEA: XBRL DOCUMENT v2.4.0.6
Property, Plant, and Equipment (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Property, Plant, and Equipment      
Gross property, plant and equipment $ 2,384,051,000 $ 2,151,286,000  
Accumulated depreciation 601,133,000 478,325,000  
Property, plant, and equipment, net of accumulated depreciation 1,782,918,000 1,672,961,000  
Capitalized interest 10,800,000 3,900,000 1,800,000
Original carrying value of assets under capital lease obligations 25,100,000 24,900,000 5,200,000
Land and improvements
     
Property, Plant, and Equipment      
Gross property, plant and equipment 30,992,000 26,136,000  
Buildings
     
Property, Plant, and Equipment      
Gross property, plant and equipment 40,617,000 37,289,000  
Machinery and equipment
     
Property, Plant, and Equipment      
Gross property, plant and equipment 2,089,545,000 1,967,269,000  
Automotive equipment
     
Property, Plant, and Equipment      
Gross property, plant and equipment 14,969,000 10,217,000  
Furniture and fixtures
     
Property, Plant, and Equipment      
Gross property, plant and equipment 13,658,000 12,349,000  
Leasehold improvements
     
Property, Plant, and Equipment      
Gross property, plant and equipment 2,483,000 1,445,000  
Railcars
     
Property, Plant, and Equipment      
Gross property, plant and equipment 2,496,000 2,496,000  
Construction in progress
     
Property, Plant, and Equipment      
Gross property, plant and equipment $ 189,291,000 $ 94,085,000