v3.20.2

ORGANIZATION AND BASIS OF PRESENTATION Narrative 2 (Details) - Unsecured Term Loan Credit Agreement [Member] $ in Millions | Apr. 21, 2020 USD ($)
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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

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