Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Supply and logistics		$ 974,696	$ 947,890	$ 893,263					$ 3,797,750	$ 2,825,768	$ 1,894,612
Refinery services									196,017	201,711	151,060
Pipeline transportation services									76,290	62,190	55,652
Total revenues	1,054,072	1,041,837	1,013,431	960,717	806,881	830,200	762,790	689,798	4,070,057	3,089,669	2,101,324
Supply and logistics costs		911,399	883,176	835,869					3,707,411	2,766,808	1,858,862
Refinery services operating costs									123,477	126,782	88,094
Pipeline transportation operating costs									21,894	16,964	14,777
General and administrative									42,419	34,473	113,406
Depreciation and amortization									61,166	62,190	53,569
Total costs and expenses		1,012,719	985,762	933,987					3,956,367	3,007,217	2,128,708
OPERATING INCOME (LOSS)	30,173	29,118	27,669	26,730	15,057	28,632	25,931	12,832	113,690	82,452	(27,384)
Equity in earnings of equity investees									14,345	3,347	2,355
Interest income (expense), net									(40,921)	(35,767)	(22,924)
Income (loss) before income taxes									87,114	50,032	(47,953)
Income tax benefit (expense)									9,205	1,217	(2,588)
Net income (loss)									96,319	51,249	(50,541)
Net loss attributable to noncontrolling interests									0	0	2,082
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.	26,937	31,194	18,584	19,604	7,773	19,088	17,358	7,030	96,319	51,249	(48,459)
Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Equity in (losses) earnings of subsidiaries									137,151	86,958	(34,988)
Interest income (expense), net									(40,832)	(35,709)	(13,471)
Income (loss) before income taxes									96,319	51,249	(48,459)
Net income (loss)									96,319	51,249	(48,459)
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.											(48,459)
Genesis Energy Finance Corporation (Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Supply and logistics									0	0	0
Refinery services									0	0	0
Pipeline transportation services									0	0	0
Total revenues									0	0	0
Supply and logistics costs									0	0	0
Refinery services operating costs									0	0	0
Pipeline transportation operating costs									0	0	0
General and administrative									0	0	0
Depreciation and amortization									0	0	0
Total costs and expenses									0	0	0
OPERATING INCOME (LOSS)									0	0	0
Equity in earnings of equity investees									0	0	0
Equity in (losses) earnings of subsidiaries									0	0	0
Interest income (expense), net									0	0	0
Income (loss) before income taxes									0	0	0
Income tax benefit (expense)									0	0	0
Net income (loss)									0	0	0
Net loss attributable to noncontrolling interests											0
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.											0
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Supply and logistics									3,772,400	2,824,524	1,894,612
Refinery services									192,083	197,928	146,570
Pipeline transportation services									50,106	36,281	29,497
Total revenues									4,014,589	3,058,733	2,070,679
Supply and logistics costs									3,696,792	2,766,084	1,858,862
Refinery services operating costs									120,095	122,724	85,250
Pipeline transportation operating costs									21,000	16,174	14,301
General and administrative									42,297	34,473	113,406
Depreciation and amortization									57,402	59,439	50,973
Total costs and expenses									3,937,586	2,998,894	2,122,792
OPERATING INCOME (LOSS)									77,003	59,839	(52,113)
Equity in earnings of equity investees									14,345	3,347	2,355
Equity in (losses) earnings of subsidiaries									20,547	5,333	7,401
Interest income (expense), net									16,502	16,933	7,884
Income (loss) before income taxes									128,397	85,452	(34,473)
Income tax benefit (expense)									8,903	1,555	(2,175)
Net income (loss)									137,300	87,007	(36,648)
Net loss attributable to noncontrolling interests											2,083
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.											(34,565)
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Supply and logistics									135,013	14,883
Refinery services									19,999	20,548	14,544
Pipeline transportation services									26,184	25,909	26,155
Total revenues									181,196	61,340	40,699
Supply and logistics costs									120,280	14,363
Refinery services operating costs									19,489	20,968	12,672
Pipeline transportation operating costs									894	790	476
General and administrative									122
Depreciation and amortization									3,764	2,751	2,596
Total costs and expenses									144,549	38,872	15,744
OPERATING INCOME (LOSS)									36,647	22,468	24,955
Interest income (expense), net									(16,591)	(16,991)	(17,337)
Income (loss) before income taxes									20,056	5,477	7,618
Income tax benefit (expense)									302	(338)	(413)
Net income (loss)									20,358	5,139	7,205
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.											7,205
Eliminations
Condensed Financial Statements, Captions [Line Items]
Supply and logistics									(109,663)	(13,639)
Refinery services									(16,065)	(16,765)	(10,054)
Total revenues									(125,728)	(30,404)	(10,054)
Supply and logistics costs									(109,661)	(13,639)
Refinery services operating costs									(16,107)	(16,910)	(9,828)
Total costs and expenses									(125,768)	(30,549)	(9,828)
OPERATING INCOME (LOSS)									40	145	(226)
Equity in (losses) earnings of subsidiaries									(157,698)	(92,291)	27,587
Income (loss) before income taxes									(157,658)	(92,146)	27,361
Net income (loss)									(157,658)	(92,146)	27,361
Net loss attributable to noncontrolling interests											(1)
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.											$ 27,360