Condensed Consolidating Financial Information (Condensed Consolidating Statement of Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ 96,319	$ 51,249	$ (50,541)
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	2,112
Changes in derivative financial instruments—interest rate swaps	0	0	(424)
Other comprehensive loss from consolidated subsidiaries			0
Comprehensive income (loss)	96,319	51,249	(48,853)
Comprehensive loss attributable to noncontrolling interests	0	0	1,223
Comprehensive income (loss) attributable to Genesis Energy, L.P.	96,319	51,249	(47,630)
Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	96,319	51,249	(48,459)
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	0
Changes in derivative financial instruments—interest rate swaps	0	0	0
Other comprehensive loss from consolidated subsidiaries			829
Comprehensive income (loss)	96,319	51,249	(47,630)
Comprehensive loss attributable to noncontrolling interests	0	0	0
Comprehensive income (loss) attributable to Genesis Energy, L.P.	96,319	51,249	(47,630)
Genesis Energy Finance Corporation (Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	0	0	0
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	0
Changes in derivative financial instruments—interest rate swaps	0	0	0
Other comprehensive loss from consolidated subsidiaries			0
Comprehensive income (loss)	0	0	0
Comprehensive loss attributable to noncontrolling interests	0	0	0
Comprehensive income (loss) attributable to Genesis Energy, L.P.	0	0	0
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	137,300	87,007	(36,648)
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	2,112
Changes in derivative financial instruments—interest rate swaps	0	0	(424)
Other comprehensive loss from consolidated subsidiaries			0
Comprehensive income (loss)	137,300	87,007	(34,960)
Comprehensive loss attributable to noncontrolling interests	0	0	1,223
Comprehensive income (loss) attributable to Genesis Energy, L.P.	137,300	87,007	(33,737)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	20,358	5,139	7,205
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	0
Changes in derivative financial instruments—interest rate swaps	0	0	0
Other comprehensive loss from consolidated subsidiaries			0
Comprehensive income (loss)	20,358	5,139	7,205
Comprehensive loss attributable to noncontrolling interests	0	0	0
Comprehensive income (loss) attributable to Genesis Energy, L.P.	20,358	5,139	7,205
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(157,658)	(92,146)	27,361
Change in fair value of derivatives:
Current period reclassification to earnings—interest rate swaps	0	0	0
Changes in derivative financial instruments—interest rate swaps	0	0	0
Other comprehensive loss from consolidated subsidiaries			(829)
Comprehensive income (loss)	(157,658)	(92,146)	26,532
Comprehensive loss attributable to noncontrolling interests	0	0	0
Comprehensive income (loss) attributable to Genesis Energy, L.P.	$ (157,658)	$ (92,146)	$ 26,532

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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- Definition

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

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