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Equity-Based Compensation (Details) - WNRL 2013 LTIP [Member] - Phantom Share Units (PSUs) [Member] - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common Stock, Capital Shares Reserved for Future Issuance 4,098,368   4,098,368  
Allocated Share-based Compensation Expense $ 0.7 $ 0.6 $ 2.0 $ 1.5
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Total Weighted Average Grant Date Fair Value 7.5   7.5  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Nonvested 6.6   6.6  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 6.2   $ 6.2  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     2 years 7 months 6 days