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Property, Plant and Equipment, Net (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Property, Plant and Equipment    
Property, plant and equipment, gross $ 3,514,188 $ 3,440,965
Accumulated depreciation (1,388,901) (1,364,038)
Property, plant and equipment, net 2,125,287 2,076,927
Compression equipment, facilities and other fleet assets    
Property, Plant and Equipment    
Property, plant and equipment, gross 3,261,824 3,192,363
Land and buildings    
Property, Plant and Equipment    
Property, plant and equipment, gross 46,667 45,754
Transportation and shop equipment    
Property, Plant and Equipment    
Property, plant and equipment, gross 101,867 100,133
Computer hardware and software    
Property, Plant and Equipment    
Property, plant and equipment, gross 92,156 90,296
Other    
Property, Plant and Equipment    
Property, plant and equipment, gross $ 11,674 $ 12,419