Equity method investment amortization (accretion).

No definition available.

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- Definition

Equity Method Investment, Unanimous Consent of Partners

+ References

No definition available.

+ Details

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- Definition

Percentage of voting equity interests acquired at the acquisition date in the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

+ Details

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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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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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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Equity Method Investments - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 01, 2017	Oct. 17, 2017	Oct. 03, 2016
Schedule of Equity Method Investments [Line Items]
Unamortized basis differences included in equity investments	$ 40.4	$ 41.4	$ 42.7
Net amortization expense	$ 3.7	$ 3.8	$ 2.8
Permian Basin
Schedule of Equity Method Investments [Line Items]
Voting interest acquired					50.00%
Unanimous consent of partners (in percentage)	75.00%
Payments to Acquire Equity Method Investments	$ 28.0
Mars
Schedule of Equity Method Investments [Line Items]
Voting interest acquired				22.90%		20.00%
LOCAP
Schedule of Equity Method Investments [Line Items]
Voting interest acquired				41.48%
Odyssey Pipeline L.L.C.
Schedule of Equity Method Investments [Line Items]
Voting interest acquired				22.00%