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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Comprehensive Income) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) | $ 26,166 | $ 29,113 | $ 21,148 | $ 29,775 | $ 421,585 | $ 106,202 | $ 86,109
Genesis Energy, L.P. (Parent and Co-Issuer) |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 106,202 | 86,109
Genesis Energy Finance Corporation (Co-Issuer) |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 0 | 0
Guarantor Subsidiaries |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 172,363 | 135,273
Non-Guarantor Subsidiaries |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | 6,775 | 6,729
Eliminations |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |
Net income (loss) |  |  |  |  |  | $ (179,138) | $ (142,002)

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