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Acquisitions Pro Forma Infromation (Details) (USD $) | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012
North Little Rock Terminal [Member] |  |
Business Acquisition [Line Items] |  |
Net sales, Actual | $ 200,000 |
Net income (loss), Actual | 100,000 |
Net sales | 908,867,000 | 1,024,025,000
Net income | 42,268,000 | 26,109,000
Hopewell [Member] |  |
Business Acquisition [Line Items] |  |
Net sales, Actual | 400,000 |
Net income (loss), Actual | (500,000) |
Net sales | 908,382,000 | 1,023,540,000
Net income | 41,291,000 | 25,132,000
Big Sandy Terminal [Member] |  |
Business Acquisition [Line Items] |  |
Net sales, Actual | 1,500,000 |
Net income (loss), Actual | 1,200,000 |
Nettleton Pipeline [Member] |  |
Business Acquisition [Line Items] |  |
Net sales, Actual | 9,000,000 |
Net income (loss), Actual | 7,200,000 |
Nettleton and Big Sandy [Member] |  |
Business Acquisition [Line Items] |  |
Net sales |  | 1,022,715,000
Net income |  | $ 24,941,000

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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)-(3) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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