Annual report pursuant to Section 13 and 15(d)

Leased Properties - Portland Terminal Facility (Details)

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Leased Properties - Portland Terminal Facility (Details)
bbl in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
a
tanks
bbl
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Portland Terminal Facility [Member]      
Sale Leaseback Transaction [Line Items]      
Acres owned | a 39    
Number Of Tanks | tanks 84    
Crude oil and petroleum product storage capacity | bbl 1.5    
Estimated useful lives of assets 30 years    
Depreciation $ 1,200,000 $ 1,400,000 $ 0
Portland Terminal Facility [Member]      
Sale Leaseback Transaction [Line Items]      
Construction and Development Costs $ 10,000,000