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Summary of Accounting Policies - Narrative (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2016
USD ($)
$ / Barrel
Dec. 31, 2015
USD ($)
Dec. 31, 2014
Related Party Transaction [Line Items]      
Deferred revenue - affiliate | $ $ 19,132 $ 10,130  
Pipeline Loss Allowance 0.20%    
Pipeline Loss Allowance, Subtraction per Barrel from Month's Calendar Day Average for WTI Crude Oil | $ / Barrel 8.00    
Maximum [Member]      
Related Party Transaction [Line Items]      
Cash and Cash Equivalents, Short-Term Investments, Maturity Duration 3 months    
Customer Concentration Risk [Member] | Sales Revenue, Net [Member] | Western Refining, Inc. [Member]      
Related Party Transaction [Line Items]      
Concentration Risk, Percentage 31.60% 30.20% 28.90%
Minimum Annual Distribution [Member]      
Related Party Transaction [Line Items]      
Annualized minimum quarterly distribution, subordinated period, percent 150.00%    
Minimum Annual Distribution [Member] | Minimum [Member]      
Related Party Transaction [Line Items]      
Distribution Payment Targets 1.15    
Minimum Annual Distribution [Member] | Maximum [Member]      
Related Party Transaction [Line Items]      
Distribution Payment Targets 1.725    
Phantom Share Units (PSUs) [Member] | WNRL 2013 LTIP [Member] | Minimum [Member]      
Related Party Transaction [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term   1 year  
Phantom Share Units (PSUs) [Member] | WNRL 2013 LTIP [Member] | Maximum [Member]      
Related Party Transaction [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term   3 years