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Significant Accounting Policies (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Accounting Policies [Abstract]      
Excise taxes $ 1,968,629 $ 1,930,608 $ 1,884,035
LKE transaction, required term to facilitate forward agreement before proceeds are reclassified as available cash (in days) 180 days    
Restricted cash $ 68,571 $ 0  
Pipeline And Terminal Facilities [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life (in years) 16 years    
Pipeline And Terminal Facilities [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life (in years) 25 years    
Marketing Facilities [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life (in years) 3 years    
Marketing Facilities [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life (in years) 50 years    
Nonqualified Stock Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 3 years    
Restricted Stock And Restricted Stock Units [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 3 years