Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	$ 857,127	$ 698,343	$ 1,722,616	$ 1,326,140
Refinery services	48,320	49,363	96,365	96,909
Pipeline transportation services	17,221	15,084	36,630	29,539
Total revenues	922,668	762,790	1,855,611	1,452,588
Supply and logistics costs	833,120	679,357	1,679,131	1,300,721
Refinery services operating costs	31,050	30,264	61,829	59,850
Pipeline transportation operating costs	5,032	4,356	10,084	8,426
General and administrative	9,967	8,380	19,559	16,434
Depreciation and amortization	15,357	14,253	30,392	28,156
Net gain on disposal of surplus assets	473	249	217	238
Total costs and expenses	894,999	736,859	1,801,212	1,413,825
OPERATING INCOME	27,669	25,931	54,399	38,763
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	1,047	592	4,539	3,789
Interest (expense) income, net	(10,228)	(9,011)	(20,824)	(17,710)
Income before income taxes	18,488	17,512	38,114	24,842
Income tax (expense) benefit	96	(154)	74	(454)
NET INCOME	18,584	17,358	38,188	24,388
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
Net gain on disposal of surplus assets	0	0	0	0
Total costs and expenses	0	0	0	0
OPERATING INCOME	0	0	0	0
Equity in earnings of subsidiaries	28,791	26,352	58,959	42,060
Equity in earnings of equity investees	0	0		0
Interest (expense) income, net	(10,207)	(8,994)	(20,771)	(17,672)
Income before income taxes	18,584	17,358	38,188	24,388
Income tax (expense) benefit	0	0	0	0
NET INCOME	18,584	17,358	38,188	24,388
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
Net gain on disposal of surplus assets	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	849,469	698,343	1,709,376	1,326,140
Refinery services	45,311	46,782	93,907	94,292
Pipeline transportation services	10,869	8,983	23,785	16,904
Total revenues	905,649	754,108	1,827,068	1,437,336
Supply and logistics costs	829,597	679,357	1,673,465	1,300,721
Refinery services operating costs	29,175	28,675	59,816	58,193
Pipeline transportation operating costs	4,856	4,210	9,690	8,119
General and administrative	9,937	8,380	19,499	16,434
Depreciation and amortization	14,459	13,604	28,602	26,858
Net gain on disposal of surplus assets	473	249	217	238
Total costs and expenses	888,497	734,475	1,791,289	1,410,563
OPERATING INCOME	17,152	19,633	35,779	26,773
Equity in earnings of subsidiaries	5,809	1,577	10,131	3,293
Equity in earnings of equity investees	1,047	592	4,539	3,789
Interest (expense) income, net	4,141	4,241	8,295	8,500
Income before income taxes	28,149	26,043	58,744	42,355
Income tax (expense) benefit	216	30	121	(234)
NET INCOME	28,365	26,073	58,865	42,121
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	32,159	0	64,338	0
Refinery services	6,744	4,668	9,389	9,148
Pipeline transportation services	6,352	6,101	12,845	12,635
Total revenues	45,255	10,769	86,572	21,783
Supply and logistics costs	28,022	0	56,762	0
Refinery services operating costs	6,087	4,004	9,136	8,224
Pipeline transportation operating costs	176	146	394	307
General and administrative	30	0	60	0
Depreciation and amortization	898	649	1,790	1,298
Net gain on disposal of surplus assets	0	0	0	0
Total costs and expenses	35,213	4,799	68,142	9,829
OPERATING INCOME	10,042	5,970	18,430	11,954
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	(4,162)	(4,258)	(8,348)	(8,538)
Income before income taxes	5,880	1,712	10,082	3,416
Income tax (expense) benefit	(120)	(184)	(47)	(220)
NET INCOME	5,760	1,528	10,035	3,196
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	(24,501)	0	(51,098)	0
Refinery services	(3,735)	(2,087)	(6,931)	(6,531)
Pipeline transportation services	0	0	0	0
Total revenues	(28,236)	(2,087)	(58,029)	(6,531)
Supply and logistics costs	(24,499)	0	(51,096)	0
Refinery services operating costs	(4,212)	(2,415)	(7,123)	(6,567)
Pipeline transportation operating costs	0	0	0	0
General and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
Net gain on disposal of surplus assets	0	0	0	0
Total costs and expenses	(28,711)	(2,415)	(58,219)	(6,567)
OPERATING INCOME	475	328	190	36
Equity in earnings of subsidiaries	(34,600)	(27,929)	(69,090)	(45,353)
Equity in earnings of equity investees	0	0		0
Interest (expense) income, net	0	0	0	0
Income before income taxes	(34,125)	(27,601)	(68,900)	(45,317)
Income tax (expense) benefit	0	0	0	0
NET INCOME	$ (34,125)	$ (27,601)	$ (68,900)	$ (45,317)