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

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

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- Definition

The profit or loss on sales of previously unissued stock by subsidiaries or equity investees made to investors outside the consolidated group that is not reported as operating income. Represents the difference in the parent company's carrying amount of the equity interest in the subsidiary or equity investee immediately before and after the transaction.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.13(g))

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Subparagraph h

-Article 9

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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 purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ 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=31042434&loc=d3e3213-108585

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

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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.

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Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

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INVESTMENT IN NUSTAR ENERGY Narrative 1 (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Subsidiary, Sale of Stock [Line Items]
Investment in NuStar Energy in order to maintain 2% interest	$ 3,913,000	$ 18,005,000	$ 17,031,000
General partner interest percentage	2.00%
Percent ownership in NuStar Energy	14.90%	15.00%	16.30%	17.60%
Gain related to NuStar Energy L.P.'s issuance of limited partner units	0	10,689,000	8,074,000
NuStar Energy - September 2012 Offering [Member]
Subsidiary, Sale of Stock [Line Items]
Limited partner units issued by NuStar Energy		7,130,000
Price of limited partner units issued by NuStar Energy, per unit		$ 48.94
Proceeds, net of issuance cost, from issuance of NuStar Energy limited partner units		336,800,000
Investment in NuStar Energy in order to maintain 2% interest		7,100,000
NuStar Energy - 2011 Offerings [Member]
Subsidiary, Sale of Stock [Line Items]
Investment in NuStar Energy in order to maintain 2% interest			6,700,000
NuStar Energy - December 2011 Offering [Member]
Subsidiary, Sale of Stock [Line Items]
Limited partner units issued by NuStar Energy			6,037,500
Price of limited partner units issued by NuStar Energy, per unit			$ 53.45
Proceeds, net of issuance cost, from issuance of NuStar Energy limited partner units			311,400,000
NuStar Energy - September and October 2011 Offerings [Member]
Subsidiary, Sale of Stock [Line Items]
Limited partner units issued by NuStar Energy			108,029
Proceeds, net of issuance cost, from issuance of NuStar Energy limited partner units			$ 5,900,000