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Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | --- | --- | ---
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | $ 12,311 | $ 10,895 | $ 11,138 | $ 9,462
Other current assets | 314,060 | 295,421 |  |
Total current assets | 326,371 | 306,316 |  |
Fixed Assets, at cost | 4,476,649 | 4,310,226 |  |
Less: Accumulated depreciation | (416,425) | (378,247) |  |
Net fixed assets | 4,060,224 | 3,931,979 |  |
Goodwill | 325,046 | 325,046 |  |
Other assets, net | 419,033 | 421,866 |  |
Advances to Affiliate | 0 | 0 |  |
Equity investees | 438,700 | 474,392 |  |
Investments in subsidiaries | 0 | 0 |  |
TOTAL ASSETS | 5,569,374 | 5,459,599 |  |
Current liabilities | 257,374 | 302,136 |  |
Senior secured credit facility | 1,280,000 | 1,115,000 |  |
Senior unsecured notes | 1,808,575 | 1,807,054 |  |
Deferred tax liabilities | 23,286 | 22,586 |  |
Due to Affiliate | 0 | 0 |  |
Other liabilities | 216,298 | 192,072 |  |
Total liabilities | 3,585,533 | 3,438,848 |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 1,992,317 | 2,029,101 |  |
Partners' Capital Attributable to Noncontrolling Interest | (8,476) | (8,350) |  |
Liabilities and Equity | 5,569,374 | 5,459,599 |  |
Genesis Energy, L.P. (Parent And Co-Issuer) [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 6 | 6 | 9 | 9
Other current assets | 25 | 50 |  |
Total current assets | 31 | 56 |  |
Fixed Assets, at cost | 0 | 0 |  |
Less: Accumulated depreciation | 0 | 0 |  |
Net fixed assets | 0 | 0 |  |
Goodwill | 0 | 0 |  |
Other assets, net | 12,221 | 13,140 |  |
Advances to Affiliate | 2,745,965 | 2,619,493 |  |
Equity investees | 0 | 0 |  |
Investments in subsidiaries | 2,350,451 | 2,353,804 |  |
TOTAL ASSETS | 5,108,668 | 4,986,493 |  |
Current liabilities | 28,719 | 35,338 |  |
Senior secured credit facility | 1,280,000 | 1,115,000 |  |
Senior unsecured notes | 1,808,575 | 1,807,054 |  |
Deferred tax liabilities | 0 | 0 |  |
Due to Affiliate | 0 | 0 |  |
Other liabilities | 0 | 0 |  |
Total liabilities | 3,117,294 | 2,957,392 |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 1,991,374 | 2,029,101 |  |
Partners' Capital Attributable to Noncontrolling Interest | 0 | 0 |  |
Liabilities and Equity | 5,108,668 | 4,986,493 |  |
Genesis Energy Finance Corporation (Co-Issuer) [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 0 | 0 | 0
Other current assets | 0 | 0 |  |
Total current assets | 0 | 0 |  |
Fixed Assets, at cost | 0 | 0 |  |
Less: Accumulated depreciation | 0 | 0 |  |
Net fixed assets | 0 | 0 |  |
Goodwill | 0 | 0 |  |
Other assets, net | 0 | 0 |  |
Advances to Affiliate | 0 | 0 |  |
Equity investees | 0 | 0 |  |
Investments in subsidiaries | 0 | 0 |  |
TOTAL ASSETS | 0 | 0 |  |
Current liabilities | 0 | 0 |  |
Senior secured credit facility | 0 | 0 |  |
Senior unsecured notes | 0 | 0 |  |
Deferred tax liabilities | 0 | 0 |  |
Due to Affiliate | 0 | 0 |  |
Other liabilities | 0 | 0 |  |
Total liabilities | 0 | 0 |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 0 | 0 |  |
Partners' Capital Attributable to Noncontrolling Interest | 0 | 0 |  |
Liabilities and Equity | 0 | 0 |  |
Guarantor Subsidiaries [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 9,067 | 8,288 | 8,774 | 8,352
Other current assets | 304,833 | 285,313 |  |
Total current assets | 313,900 | 293,601 |  |
Fixed Assets, at cost | 4,399,064 | 4,232,641 |  |
Less: Accumulated depreciation | (394,083) | (356,530) |  |
Net fixed assets | 4,004,981 | 3,876,111 |  |
Goodwill | 325,046 | 325,046 |  |
Other assets, net | 397,746 | 394,294 |  |
Advances to Affiliate | 0 | 0 |  |
Equity investees | 438,700 | 474,392 |  |
Investments in subsidiaries | 90,700 | 90,741 |  |
TOTAL ASSETS | 5,571,073 | 5,454,185 |  |
Current liabilities | 229,053 | 267,294 |  |
Senior secured credit facility | 0 | 0 |  |
Senior unsecured notes | 0 | 0 |  |
Deferred tax liabilities | 23,286 | 22,586 |  |
Due to Affiliate | 2,799,729 | 2,666,527 |  |
Other liabilities | 174,620 | 150,877 |  |
Total liabilities | 3,226,688 | 3,107,284 |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 2,344,385 | 2,346,901 |  |
Partners' Capital Attributable to Noncontrolling Interest | 0 | 0 |  |
Liabilities and Equity | 5,571,073 | 5,454,185 |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 3,238 | 2,601 | 2,355 | 1,101
Other current assets | 9,468 | 10,422 |  |
Total current assets | 12,706 | 13,023 |  |
Fixed Assets, at cost | 77,585 | 77,585 |  |
Less: Accumulated depreciation | (22,342) | (21,717) |  |
Net fixed assets | 55,243 | 55,868 |  |
Goodwill | 0 | 0 |  |
Other assets, net | 138,739 | 140,409 |  |
Advances to Affiliate | 53,764 | 47,034 |  |
Equity investees | 0 | 0 |  |
Investments in subsidiaries | 0 | 0 |  |
TOTAL ASSETS | 260,452 | 256,334 |  |
Current liabilities | 0 | 0 |  |
Senior secured credit facility | 0 | 0 |  |
Senior unsecured notes | 0 | 0 |  |
Deferred tax liabilities | 0 | 0 |  |
Due to Affiliate | 0 | 0 |  |
Other liabilities | 171,189 | 167,006 |  |
Total liabilities | 171,189 | 167,006 |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | 97,739 | 97,678 |  |
Partners' Capital Attributable to Noncontrolling Interest | (8,476) | (8,350) |  |
Liabilities and Equity | 260,452 | 256,334 |  |
Eliminations [Member] |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |
Cash and cash equivalents | 0 | 0 | $ 0 | $ 0
Other current assets | (266) | (364) |  |
Total current assets | (266) | (364) |  |
Fixed Assets, at cost | 0 | 0 |  |
Less: Accumulated depreciation | 0 | 0 |  |
Net fixed assets | 0 | 0 |  |
Goodwill | 0 | 0 |  |
Other assets, net | (129,673) | (125,977) |  |
Advances to Affiliate | (2,799,729) | (2,666,527) |  |
Equity investees | 0 | 0 |  |
Investments in subsidiaries | (2,441,151) | (2,444,545) |  |
TOTAL ASSETS | (5,370,819) | (5,237,413) |  |
Current liabilities | (398) | (496) |  |
Senior secured credit facility | 0 | 0 |  |
Senior unsecured notes | 0 | 0 |  |
Deferred tax liabilities | 0 | 0 |  |
Due to Affiliate | (2,799,729) | (2,666,527) |  |
Other liabilities | (129,511) | (125,811) |  |
Total liabilities | (2,929,638) | (2,792,834) |  |
Partners' Capital, Including Portion Attributable to Noncontrolling Interest | (2,441,181) | (2,444,579) |  |
Partners' Capital Attributable to Noncontrolling Interest | 0 | 0 |  |
Liabilities and Equity | $ (5,370,819) | $ (5,237,413) |  |

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