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Partners' Capital and Distributions (Narrative) (Details) - shares | Mar. 31, 2016 | Dec. 31, 2015
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Partners Capital And Distributions [Line Items] |  |
Limited Partners' Capital Account, Units Outstanding | 109,979,218 | 109,979,218
Class A [Member] |  |
Partners Capital And Distributions [Line Items] |  |
Limited Partners' Capital Account, Units Outstanding | 109,939,221 |
Class B [Member] |  |
Partners Capital And Distributions [Line Items] |  |
Limited Partners' Capital Account, Units Outstanding | 39,997 |

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- Definition The number of limited partner units outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 5 -Subparagraph (SAB Topic 4.F) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770 + Details
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