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Basis of Presentation and Summary of Significant Accounting Policies - Credit Risk and Other Concentrations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Successor      
Concentration Risk [Line Items]      
Derivative fair value $ 0.7    
Customer Concentration Risk | Plains Marketing, LP | Successor | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk percent 48.00%    
Customer Concentration Risk | Plains Marketing, LP | Predecessor | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk percent   64.00% 78.00%
Customer Concentration Risk | Shell Trading (US) Company | Successor | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk percent 22.00%    
Customer Concentration Risk | Permian Transport and Trading | Successor | Sales Revenue, Net      
Concentration Risk [Line Items]      
Concentration risk percent 11.00%