Annual report pursuant to Section 13 and 15(d)

Leased Properties and Leases - Leased Properties (Details)

v3.8.0.1
Leased Properties and Leases - Leased Properties (Details)
bbl / d in Thousands, bbl in Millions
 12 Months Ended
Jan. 01, 2018
USD ($)
Dec. 31, 2017
USD ($)
a
bbl / d
facility
tank
leased_property
mi
bbl
Jun. 30, 2017
USD ($)
Dec. 29, 2017
Sale Leaseback Transaction [Line Items]        
Number of significant leased properties | leased_property   3    
Grand Isle Gathering System [Member]        
Sale Leaseback Transaction [Line Items]        
Initial term   11 years    
Renewal term   9 years    
Renewal Term, percentage of remaining useful life   75.00%    
Length of offshore pipeline (in miles) | mi   153    
Pipeline capacity (in bbl/day) | bbl / d   120    
Number of acres in the onshore terminal and saltwater disposal system (in acres) | a   16    
Current Monthly Rent Payments     $ 2,826,250  
Expected future monthly rent payments   $ 2,854,667    
Estimated Useful Life   27 years    
Pinedale LGS [Member]        
Sale Leaseback Transaction [Line Items]        
Initial term   15 years    
Renewal term   5 years    
Length of offshore pipeline (in miles) | mi   150    
Number of storage facilities | facility   4    
Current Monthly Rent Payments   $ 1,741,933    
Estimated Useful Life   26 years    
Pinedale LGS [Member] | Prudential [Member] | Limited Partner [Member]        
Sale Leaseback Transaction [Line Items]        
Noncontrolling economic interest       18.95%
Pinedale LGS [Member] | Pinedale GP [Member] | General Partner [Member]        
Sale Leaseback Transaction [Line Items]        
Controlling economic interest   81.05%    
Portland Terminal Facility [Member]        
Sale Leaseback Transaction [Line Items]        
Initial term   15 years    
Renewal term   5 years    
Acres owned (in acres) | a   39    
Number of tanks | tank   84    
Crude oil and petroleum product storage capacity (in bbl) | bbl   1.5    
Current Monthly Rent Payments   $ 513,355    
Estimated Useful Life   30 years    
Exercise period of purchase option   90 days    
Minimum [Member]        
Sale Leaseback Transaction [Line Items]        
Initial term   11 years    
Maximum [Member]        
Sale Leaseback Transaction [Line Items]        
Initial term   15 years    
Forecast [Member] | Pinedale LGS [Member]        
Sale Leaseback Transaction [Line Items]        
Current Monthly Rent Payments $ 1,776,772