Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	$ 1,139,644	$ 947,890	$ 2,216,595	$ 1,841,153
Refinery services	51,476	48,320	100,960	96,365
Pipeline transportation services	22,537	17,221	43,316	36,630
Total revenues	1,213,657	1,013,431	2,360,871	1,974,148
Supply and logistics costs	1,113,057	923,883	2,163,796	1,797,668
Refinery services operating costs	32,821	31,050	65,264	61,829
Pipeline transportation operating costs	7,145	5,032	14,229	10,084
General and administrative	11,314	9,967	23,061	19,559
Depreciation and amortization	15,670	15,830	30,723	30,609
Total costs and expenses	1,180,007	985,762	2,297,073	1,919,749
OPERATING INCOME	33,650	27,669	63,798	54,399
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	5,623	1,047	9,559	4,539
Interest (expense) income, net	(12,254)	(10,228)	(23,695)	(20,824)
Income before income taxes	27,019	18,488	49,662	38,114
Income tax (expense) benefit	(117)	96	86	74
NET INCOME	26,902	18,584	49,748	38,188
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	39,133	28,791	73,385	58,959
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	(12,231)	(10,207)	(23,637)	(20,771)
Income before income taxes	26,902	18,584	49,748	38,188
Income tax (expense) benefit	0	0	0	0
NET INCOME	26,902	18,584	49,748	38,188
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	1,134,554	940,232	2,205,043	1,827,913
Refinery services	51,682	45,311	99,449	93,907
Pipeline transportation services	15,731	10,869	29,857	23,785
Total revenues	1,201,967	996,412	2,334,349	1,945,605
Supply and logistics costs	1,109,870	920,360	2,158,801	1,792,002
Refinery services operating costs	32,915	29,175	64,082	59,816
Pipeline transportation operating costs	6,668	4,856	13,422	9,690
General and administrative	11,287	9,937	23,001	19,499
Depreciation and amortization	14,760	14,932	28,911	28,819
Total costs and expenses	1,175,500	979,260	2,288,217	1,909,826
OPERATING INCOME	26,467	17,152	46,132	35,779
Equity in earnings of subsidiaries	3,533	5,809	9,771	10,131
Equity in earnings of equity investees	5,623	1,047	9,559	4,539
Interest (expense) income, net	4,030	4,141	8,077	8,295
Income before income taxes	39,653	28,149	73,539	58,744
Income tax (expense) benefit	(87)	216	170	121
NET INCOME	39,566	28,365	73,709	58,865
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	35,124	32,159	74,069	64,338
Refinery services	3,796	6,744	9,359	9,389
Pipeline transportation services	6,806	6,352	13,459	12,845
Total revenues	45,726	45,255	96,887	86,572
Supply and logistics costs	33,221	28,022	67,512	56,762
Refinery services operating costs	3,516	6,087	8,798	9,136
Pipeline transportation operating costs	477	176	807	394
General and administrative	27	30	60	60
Depreciation and amortization	910	898	1,812	1,790
Total costs and expenses	38,151	35,213	78,989	68,142
OPERATING INCOME	7,575	10,042	17,898	18,430
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	(4,053)	(4,162)	(8,135)	(8,348)
Income before income taxes	3,522	5,880	9,763	10,082
Income tax (expense) benefit	(30)	(120)	(84)	(47)
NET INCOME	3,492	5,760	9,679	10,035
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	(30,034)	(24,501)	(62,517)	(51,098)
Refinery services	(4,002)	(3,735)	(7,848)	(6,931)
Pipeline transportation services	0	0	0	0
Total revenues	(34,036)	(28,236)	(70,365)	(58,029)
Supply and logistics costs	(30,034)	(24,499)	(62,517)	(51,096)
Refinery services operating costs	(3,610)	(4,212)	(7,616)	(7,123)
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	(33,644)	(28,711)	(70,133)	(58,219)
OPERATING INCOME	(392)	475	(232)	190
Equity in earnings of subsidiaries	(42,666)	(34,600)	(83,156)	(69,090)
Equity in earnings of equity investees	0	0	0	0
Interest (expense) income, net	0	0	0	0
Income before income taxes	(43,058)	(34,125)	(83,388)	(68,900)
Income tax (expense) benefit	0	0	0	0
NET INCOME	$ (43,058)	$ (34,125)	$ (83,388)	$ (68,900)