v3.20.2
ORGANIZATION AND BASIS OF PRESENTATION Narrative 2 (Details) - Unsecured Term Loan Credit Agreement [Member]
$ in Millions
Apr. 21, 2020
USD ($)
Debt Instrument [Line Items]  
Maximum borrowing capacity $ 750.0
The Term Loan, Initial Loan 500.0
Debt instrument, unused borrowing capacity, amount $ 250.0
Long-term debt, additional aggregate principal amount available, terms NuStar Logistics may elect to draw, on or prior to April 19, 2021, in one or more draws, subject to certain conditions.
Long-term debt, term 3 years