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Business Segment Information (Schedule Of Total Assets By Reportable Segment) (Details) - USD ($) $ in Thousands | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | $ 3,230,374 | $ 2,862,202 | $ 2,109,664
Pipeline Transportation [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | 460,012 | 437,912 | 325,189
Offshore Pipeline Transportation [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | 645,668 | 637,323 | 565,463
Refinery Services [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | 403,703 | 417,121 | 414,170
Marine Transportation [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | 745,128 | 529,914 | 276,736
Supply And Logistics [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | 907,189 | 782,547 | 473,611
Other Assets [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Total Conolidated Assets | $ 68,674 | $ 57,385 | $ 54,495

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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