ORGANIZATION AND BASIS OF PRESENTATION Narrative (Details)	3 Months Ended
Mar. 31, 2016 shares
Schedule of Equity Method Investments [Line Items]
Percent ownership in NuStar Energy	15.00%
General partner interest percentage	2.00%
Percent of incentive distribution rights issued by NuStar Energy	100.00%
Maximum percentage of cash distributed by NuStar Energy	23.00%
Common units of NuStar Energy	10,214,626

The ownership of limited partner common units in the investee accounted for under the equity method of accounting.

No definition available.

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- Definition

Incentive Distribution Rights Percentage

+ References

No definition available.

+ Details

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- Definition

Maximum allowable percentage of cash distributed by equity method investee related to incentive distribution rights.

+ References

No definition available.

+ Details

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

+ 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

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.

+ Details

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