v3.19.3
Property, Plant and Equipment (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Property, Plant, and Equipment    
Total property, plant and equipment, gross $ 1,426,558 $ 1,427,983
Less: Accumulated depreciation 462,056 412,743
Total property, plant and equipment, net 964,502 1,015,240
Machinery and equipment    
Property, Plant, and Equipment    
Total property, plant and equipment, gross 1,360,019 1,362,965
Buildings and improvements    
Property, Plant, and Equipment    
Total property, plant and equipment, gross 17,116 17,116
Automotive equipment    
Property, Plant, and Equipment    
Total property, plant and equipment, gross 16,719 16,773
Land and improvements    
Property, Plant, and Equipment    
Total property, plant and equipment, gross 13,751 13,250
Construction in progress    
Property, Plant, and Equipment    
Total property, plant and equipment, gross 17,299 15,126
Other    
Property, Plant, and Equipment    
Total property, plant and equipment, gross $ 1,654 $ 2,753