Equity Method Investment Preferred Stock, Dividend Rate, Percentage

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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- Definition

Amount of cash inflow from issuance of long-term debt classified as other.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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- Definition

The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

+ References

+ Details

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- Definition

Amount of consideration received by subsidiary or equity investee in exchange for shares of stock issued or sold. Includes amount of cash received, fair value of noncash assets received, and fair value of liabilities assumed by the investor.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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ORGANIZATION Narrative 2 (Details) - USD ($) $ in Thousands				1 Months Ended	12 Months Ended
ORGANIZATION Narrative 2 (Details) - USD ($) $ in Thousands	May 04, 2017	Apr. 28, 2017	Apr. 18, 2017	Apr. 30, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Equity Method Investee [Line Items]
Proceeds from short-term debt borrowings					$ 15,500	$ 4,000	$ 0
General partner interest percentage					2.00%	2.00%
Revolving Credit Facility [Member]
Equity Method Investee [Line Items]
Proceeds from short-term debt borrowings				$ 14,000
NuStar Energy LP [Member] \| NuStar Energy Common Limited Partner Unit Issuance 2017 [Member]
Equity Method Investee [Line Items]
Limited partner units issued by NuStar Energy			14,375,000
Net proceeds received by NuStar Energy from issuance of units			$ 657,500
NuStar Energy LP [Member] \| NuStar Energy Series B Preferred Limited Partner Unit Issuance 2017 [Member]
Equity Method Investee [Line Items]
Limited partner units issued by NuStar Energy		15,400,000
Net proceeds received by NuStar Energy from issuance of units		$ 371,800
NuStar Energy's preferred unit distribution rate		7.625%
NuStar Energy LP [Member] \| NuStar Energy Logistics Notes Due 2027 [Member]
Equity Method Investee [Line Items]
NuStar Energy's senior note issuance		$ 550,000
NuStar Energy's senior notes interest rate		5.625%
NuStar Energy's net proceeds from senior note issuance		$ 543,300
NuStar Energy LP [Member] \| Navigator Acquisition [Member]
Equity Method Investee [Line Items]
NuStar Energy's purchase price of acquired entity	$ 1,500,000