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Organization and Basis of Presentation (Details)
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12 Months Ended |
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|
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|
Dec. 31, 2014
mi
billion_cubic_feet_per_day
bbl
pipeline
gathering_system
facility
|
Dec. 31, 2013
|
Jul. 02, 2012
|
Sep. 30, 2014
|
| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
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|
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| General Partners' Capital Account, Percentage |
95.00% |
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| Limited Partners' Capital Account, Percentage |
5.00% |
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| Number of Gathering Systems |
12 |
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| Number of Processing Facilities |
5 |
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| Number of Fractionation Facilities |
3 |
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| Number of Marine Terminal Sites |
4 |
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| Number of Interstate Pipelines |
3 |
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| Number of Intrastate Pipelines |
5 |
|
|
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| Gathering pipeline (miles) |
3,000 |
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|
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| Volume of Natural Gas, Operating |
1 |
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|
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| Million barrels of storage capacity |
1,700,000 |
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|
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| Useful life |
25 years |
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| Noncontrolling interest, ownership percentage by noncontrolling owners |
12.60% |
7.80% |
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| Burns Point Plant [Member] |
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| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
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| Acquired interest (percent) |
|
50.00% |
|
|
| Chatom processing, gathering and fractionation plant [Member] |
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|
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| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
|
|
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| Acquired interest (percent) |
|
4.80% |
87.40% |
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| Minimum [Member] |
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|
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| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
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|
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| Useful life |
0 years 5 months 0 days |
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| Maximum [Member] |
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|
|
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| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
|
|
|
|
| Useful life |
30 years |
|
|
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| Equity Method Investments [Member] |
|
|
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| Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] |
|
|
|
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| Ownership percentage |
66.70% |
|
|
66.70% |