v2.4.0.8
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Narrative (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Summary of Significant Accounting Policies [Line Items]    
Cash equivalents maximum maturity period, in months 3  
Intangible assets, useful life, minimum, in years 10 years  
Intangible assets, useful life, maximum, in years 47 years  
Unrecognized tax benefits $ 0 $ 0
Tax years subject to examination For U.S. federal and state purposes, tax years subject to examination are 2009 through 2013 and for our major non-U.S. jurisdictions, tax years subject to examination are 2009 through 2013, both according to standard statute of limitations. NuStar has waived the statute of limitations for limited items for the tax years 2006 and 2007 as a result of an income tax audit in Canada that is currently being appealed in the Tax Court of Canada.  
Asset retirement obligation 600,000 600,000
Environmental remediation costs, time period used, in years 20  
Forward-starting interest rate swaps, description of variable rate basis three month USD LIBOR  
Limited Partners Ownership Interest 98.00%  
General Partner Ownership Interest of Limited Partnership 2.00%  
Asphalt JV [Member]
    
Summary of Significant Accounting Policies [Line Items]    
Maximum amount available under credit facility to related party $ 250,000,000  
Equity method investment, ownership percentage 50.00%