Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	$ 875,193	$ 765,714	$ 2,597,809	$ 2,091,854
Refinery services	47,977	48,392	144,342	145,301
Pipeline transportation services	19,164	16,094	55,794	45,633
Total revenues	942,334	830,200	2,797,945	2,282,788
Supply and logistics costs	852,849	743,833	2,531,980	2,044,554
Refinery services operating costs	29,243	30,136	91,072	89,986
Pipeline transportation operating costs	5,911	3,988	15,995	12,414
General and administrative	10,375	8,905	29,934	25,339
Depreciation and amortization	14,838	14,706	45,447	43,100
Total costs and expenses	913,216	801,568	2,714,428	2,215,393
OPERATING INCOME	29,118	28,632	83,517	67,395
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	3,432	(412)	7,971	3,377
Interest (expense) income, net	(9,873)	(8,960)	(30,697)	(26,670)
Income before income taxes	22,677	19,260	60,791	44,102
Income tax (expense) benefit	8,517	(172)	8,591	(626)
NET INCOME	31,194	19,088	69,382	43,476
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	0	0	0	0
Refinery services	0	0	0	0
Pipeline transportation services	0	0	0	0
Total revenues	0	0	0	0
Supply and logistics costs	0	0	0	0
Refinery services operating costs	0	0	0	0
Pipeline transportation operating costs	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total costs and expenses	0	0	0	0
OPERATING INCOME	0	0	0	0
Equity in earnings of subsidiaries	41,052	28,032	100,011	70,092
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	(9,858)	(8,944)	(30,629)	(26,616)
Income before income taxes	31,194	19,088	69,382	43,476
Income tax (expense) benefit	0	0	0	0
NET INCOME	31,194	19,088	69,382	43,476
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	0	0	0	0
Refinery services	0	0	0	0
Pipeline transportation services	0	0	0	0
Total revenues	0	0	0	0
Supply and logistics costs	0	0	0	0
Refinery services operating costs	0	0	0	0
Pipeline transportation operating costs	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total costs and expenses	0	0	0	0
OPERATING INCOME	0	0	0	0
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	0	0	0	0
Income before income taxes	0	0	0	0
Income tax (expense) benefit	0	0	0	0
NET INCOME	0	0	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	869,726	765,714	2,579,102	2,091,854
Refinery services	48,809	48,700	142,716	142,992
Pipeline transportation services	12,596	9,388	36,381	26,292
Total revenues	931,131	823,802	2,758,199	2,261,138
Supply and logistics costs	852,009	743,833	2,525,474	2,044,554
Refinery services operating costs	29,339	30,448	89,155	88,641
Pipeline transportation operating costs	5,661	3,818	15,351	11,937
General and administrative	10,343	8,905	29,842	25,339
Depreciation and amortization	13,940	14,057	42,759	41,153
Total costs and expenses	911,292	801,061	2,702,581	2,211,624
OPERATING INCOME	19,839	22,741	55,618	49,514
Equity in earnings of subsidiaries	5,738	1,945	15,869	5,238
Equity in earnings of equity investees	3,432	(412)	7,971	3,377
Interest (expense) income, net	4,119	4,226	12,414	12,726
Income before income taxes	33,128	28,500	91,872	70,855
Income tax (expense) benefit	8,509	(233)	8,630	(467)
NET INCOME	41,637	28,267	100,502	70,388
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	31,113	0	95,451	0
Refinery services	4,367	3,805	13,756	12,953
Pipeline transportation services	6,568	6,706	19,413	19,341
Total revenues	42,048	10,511	128,620	32,294
Supply and logistics costs	26,488	0	83,250	0
Refinery services operating costs	4,565	3,612	13,701	11,836
Pipeline transportation operating costs	250	170	644	477
General and administrative	32	0	92	0
Depreciation and amortization	898	649	2,688	1,947
Total costs and expenses	32,233	4,431	100,375	14,260
OPERATING INCOME	9,815	6,080	28,245	18,034
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	(4,134)	(4,242)	(12,482)	(12,780)
Income before income taxes	5,681	1,838	15,763	5,254
Income tax (expense) benefit	8	61	(39)	(159)
NET INCOME	5,689	1,899	15,724	5,095
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	(25,646)	0	(76,744)	0
Refinery services	(5,199)	(4,113)	(12,130)	(10,644)
Pipeline transportation services	0	0	0	0
Total revenues	(30,845)	(4,113)	(88,874)	(10,644)
Supply and logistics costs	(25,648)	0	(76,744)	0
Refinery services operating costs	(4,661)	(3,924)	(11,784)	(10,491)
Pipeline transportation operating costs	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Total costs and expenses	(30,309)	(3,924)	(88,528)	(10,491)
OPERATING INCOME	(536)	(189)	(346)	(153)
Equity in earnings of subsidiaries	(46,790)	(29,977)	(115,880)	(75,330)
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	0	0	0	0
Income before income taxes	(47,326)	(30,166)	(116,226)	(75,483)
Income tax (expense) benefit	0	0	0	0
NET INCOME	$ (47,326)	$ (30,166)	$ (116,226)	$ (75,483)