Summary Of Significant Accounting Policies [Line Items]

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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)
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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
-Paragraph 2
-Subparagraph (b)
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-Publisher FASB
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-Topic 230
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-Publisher FASB
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- Definition

The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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- Definition

Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

+ 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 210.5-02.17)
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Summary Of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Summary Of Significant Accounting Policies [Line Items]
Unamortized Debt Issuance Expense	$ 19,800,000
Impairment of intangible assets	0
Impairment of goodwill	$ 0	$ 0
Poseidon Oil Pipeline Company [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	64.00%
Deepwater Gateway LLC [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	50.00%
Neptune Pipeline Company LLC [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	26.00%
Odyssey Pipeline L.L.C. [Member]
Summary Of Significant Accounting Policies [Line Items]
Ownership percentage	29.00%
Minimum [Member] \| Pipelines And Related Assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	5 years
Minimum [Member] \| Marine Vessels [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	20 years
Minimum [Member] \| Machinery And Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	10 years
Minimum [Member] \| Transportation Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	3 years
Minimum [Member] \| Building And Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	3 years
Maximum [Member] \| Pipelines And Related Assets [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	40 years
Maximum [Member] \| Marine Vessels [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	30 years
Maximum [Member] \| Machinery And Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	20 years
Maximum [Member] \| Transportation Equipment [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	7 years
Maximum [Member] \| Building And Improvements [Member]
Summary Of Significant Accounting Policies [Line Items]
Estimated useful lives of assets	10 years