Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010		Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Condensed Financial Statements, Captions [Line Items]
Supply and logistics										$ 2,825,768	$ 1,894,612	$ 1,243,044
Refinery services										201,711	151,060	141,365
Pipeline transportation services										62,190	55,652	50,951
Total revenues	806,881	830,200	762,790	689,798	602,243	[1]	576,012	456,538	466,531	3,089,669	2,101,324	1,435,360
Supply and logistics costs										2,766,808	1,858,862	1,203,896
Refinery services operating costs										126,782	88,094	88,910
Pipeline transportation operating costs										16,964	14,777	13,024
General and administrative										34,473	113,406	40,413
Depreciation and amortization										61,926	53,557	62,581
Net loss on disposal of surplus assets										264	12	160
Impairment expense												5,005
Total costs and expenses										3,007,217	2,128,708	1,413,989
OPERATING INCOME (LOSS)	15,057	28,632	25,931	12,832	(65,904)	[1]	10,183	18,299	10,038	82,452	(27,384)	21,371
Equity in earnings of equity investees										3,347	2,355	1,547
Equity in (losses) earnings of subsidiaries
Interest income (expense), net										(35,767)	(22,924)	(13,660)
Income (loss) before income taxes										50,032	(47,953)	9,258
Income tax benefit (expense)										1,217	(2,588)	(3,080)
NET INCOME (LOSS)					(74,650)	[1]	3,863	13,921	6,325	51,249	(50,541)	6,178
Net loss attributable to noncontrolling interests											2,082	1,885
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.	7,773	19,088	17,358	7,030	(74,650)	[1]	5,068	14,238	6,885	51,249	(48,459)	8,063
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics
Refinery services
Pipeline transportation services
Total revenues
Supply and logistics costs
Refinery services operating costs
Pipeline transportation operating costs
General and administrative
Depreciation and amortization
Net loss on disposal of surplus assets
Impairment expense
Total costs and expenses
OPERATING INCOME (LOSS)
Equity in earnings of equity investees
Equity in (losses) earnings of subsidiaries										86,958	(34,988)	8,063
Interest income (expense), net										(35,709)	(13,471)
Income (loss) before income taxes										51,249	(48,459)	8,063
Income tax benefit (expense)
NET INCOME (LOSS)										51,249	(48,459)	8,063
Net loss attributable to noncontrolling interests
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.										51,249	(48,459)	8,063
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics
Refinery services
Pipeline transportation services
Total revenues
Supply and logistics costs
Refinery services operating costs
Pipeline transportation operating costs
General and administrative
Depreciation and amortization
Net loss on disposal of surplus assets
Impairment expense
Total costs and expenses
OPERATING INCOME (LOSS)
Equity in earnings of equity investees
Equity in (losses) earnings of subsidiaries
Interest income (expense), net
Income (loss) before income taxes
Income tax benefit (expense)
NET INCOME (LOSS)
Net loss attributable to noncontrolling interests
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics										2,824,524	1,894,612	1,243,044
Refinery services										197,928	146,570	138,438
Pipeline transportation services										36,281	29,497	25,004
Total revenues										3,058,733	2,070,679	1,406,486
Supply and logistics costs										2,766,084	1,858,862	1,203,896
Refinery services operating costs										122,724	85,250	86,346
Pipeline transportation operating costs										16,174	14,301	12,542
General and administrative										34,473	113,406	40,402
Depreciation and amortization										59,175	50,961	59,992
Net loss on disposal of surplus assets										264	12	160
Impairment expense												5,005
Total costs and expenses										2,998,894	2,122,792	1,408,343
OPERATING INCOME (LOSS)										59,839	(52,113)	(1,857)
Equity in earnings of equity investees										3,347	2,355	1,547
Equity in (losses) earnings of subsidiaries										5,333	7,401	5,614
Interest income (expense), net										16,933	7,884	3,998
Income (loss) before income taxes										85,452	(34,473)	9,302
Income tax benefit (expense)										1,555	(2,175)	(3,080)
NET INCOME (LOSS)										87,007	(36,648)	6,222
Net loss attributable to noncontrolling interests											2,083	1,885
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.										87,007	(34,565)	8,107
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics										14,883
Refinery services										20,548	14,544	9,527
Pipeline transportation services										25,909	26,155	25,947
Total revenues										61,340	40,699	35,474
Supply and logistics costs										14,363
Refinery services operating costs										20,968	12,672	9,320
Pipeline transportation operating costs										790	476	482
General and administrative												11
Depreciation and amortization										2,751	2,596	2,589
Net loss on disposal of surplus assets
Impairment expense
Total costs and expenses										38,872	15,744	12,402
OPERATING INCOME (LOSS)										22,468	24,955	23,072
Equity in earnings of equity investees
Equity in (losses) earnings of subsidiaries
Interest income (expense), net										(16,991)	(17,337)	(17,658)
Income (loss) before income taxes										5,477	7,618	5,414
Income tax benefit (expense)										(338)	(413)
NET INCOME (LOSS)										5,139	7,205	5,414
Net loss attributable to noncontrolling interests
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.										5,139	7,205	5,414
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics										(13,639)
Refinery services										(16,765)	(10,054)	(6,600)
Pipeline transportation services
Total revenues										(30,404)	(10,054)	(6,600)
Supply and logistics costs										(13,639)
Refinery services operating costs										(16,910)	(9,828)	(6,756)
Pipeline transportation operating costs
General and administrative
Depreciation and amortization
Net loss on disposal of surplus assets
Impairment expense
Total costs and expenses										(30,549)	(9,828)	(6,756)
OPERATING INCOME (LOSS)										145	(226)	156
Equity in earnings of equity investees
Equity in (losses) earnings of subsidiaries										(92,291)	27,587	(13,677)
Interest income (expense), net
Income (loss) before income taxes										(92,146)	27,361	(13,521)
Income tax benefit (expense)
NET INCOME (LOSS)										(92,146)	27,361	(13,521)
Net loss attributable to noncontrolling interests											(1)
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P.										$ (92,146)	$ 27,360	$ (13,521)

[1] Includes executive compensation expense related to Series B and Class B awards borne entirely by our general partner in the amounts of $75.6 million (see Note 15).