v3.5.0.2
Operating Segments, Narrative Information (Details)
9 Months Ended
Sep. 30, 2016
segments
facility
Segment Reporting Information  
Number of operating segments (segments) | segments 3
Processing | Gas Processing Complexes  
Segment Reporting Information  
Number of assets (assets) 4
Green River Processing, LLC | Fractionation Facility  
Segment Reporting Information  
Number of assets (assets) 1