Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	$ 1,076,951	$ 893,263
Refinery services	49,484	48,045
Pipeline transportation services	20,779	19,409
Total revenues	1,147,214	960,717
Supply and logistics costs	1,050,739	873,785
Refinery services operating costs	32,443	30,779
Pipeline transportation operating costs	7,084	5,052
General and administrative	11,747	9,592
Depreciation and amortization	15,053	14,779
Total costs and expenses	1,117,066	933,987
OPERATING INCOME	30,148	26,730
Equity in earnings of subsidiaries	0	0
Equity in earnings of equity investees	3,936	3,492
Interest (expense) income, net	(11,441)	(10,596)
Income before income taxes	22,643	19,626
Income tax (expense) benefit	203	(22)
NET INCOME	22,846	19,604
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	0	0
Refinery services	0	0
Pipeline transportation services	0	0
Total revenues	0	0
Supply and logistics costs	0	0
Refinery services operating costs	0	0
Pipeline transportation operating costs	0	0
General and administrative	0	0
Depreciation and amortization	0	0
Total costs and expenses	0	0
OPERATING INCOME	0	0
Equity in earnings of subsidiaries	34,252	30,168
Equity in earnings of equity investees	0	0
Interest (expense) income, net	(11,406)	(10,564)
Income before income taxes	22,846	19,604
Income tax (expense) benefit	0	0
NET INCOME	22,846	19,604
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	0	0
Refinery services	0	0
Pipeline transportation services	0	0
Total revenues	0	0
Supply and logistics costs	0	0
Refinery services operating costs	0	0
Pipeline transportation operating costs	0	0
General and administrative	0	0
Depreciation and amortization	0	0
Total costs and expenses	0	0
OPERATING INCOME	0	0
Equity in earnings of subsidiaries	0	0
Equity in earnings of equity investees	0	0
Interest (expense) income, net	0	0
Income before income taxes	0	0
Income tax (expense) benefit	0	0
NET INCOME	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	1,070,489	887,681
Refinery services	47,767	48,596
Pipeline transportation services	14,126	12,916
Total revenues	1,132,382	949,193
Supply and logistics costs	1,048,931	871,642
Refinery services operating costs	31,167	30,641
Pipeline transportation operating costs	6,754	4,834
General and administrative	11,714	9,562
Depreciation and amortization	14,151	13,887
Total costs and expenses	1,112,717	930,566
OPERATING INCOME	19,665	18,627
Equity in earnings of subsidiaries	6,238	4,322
Equity in earnings of equity investees	3,936	3,492
Interest (expense) income, net	4,047	4,154
Income before income taxes	33,886	30,595
Income tax (expense) benefit	257	(95)
NET INCOME	34,143	30,500
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	38,945	32,179
Refinery services	5,563	2,645
Pipeline transportation services	6,653	6,493
Total revenues	51,161	41,317
Supply and logistics costs	34,291	28,740
Refinery services operating costs	5,282	3,049
Pipeline transportation operating costs	330	218
General and administrative	33	30
Depreciation and amortization	902	892
Total costs and expenses	40,838	32,929
OPERATING INCOME	10,323	8,388
Equity in earnings of subsidiaries	0	0
Equity in earnings of equity investees	0	0
Interest (expense) income, net	(4,082)	(4,186)
Income before income taxes	6,241	4,202
Income tax (expense) benefit	(54)	73
NET INCOME	6,187	4,275
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply and logistics	(32,483)	(26,597)
Refinery services	(3,846)	(3,196)
Pipeline transportation services	0	0
Total revenues	(36,329)	(29,793)
Supply and logistics costs	(32,483)	(26,597)
Refinery services operating costs	(4,006)	(2,911)
Pipeline transportation operating costs	0	0
General and administrative	0	0
Depreciation and amortization	0	0
Total costs and expenses	(36,489)	(29,508)
OPERATING INCOME	160	(285)
Equity in earnings of subsidiaries	(40,490)	(34,490)
Equity in earnings of equity investees	0	0
Interest (expense) income, net	0	0
Income before income taxes	(40,330)	(34,775)
Income tax (expense) benefit	0	0
NET INCOME	$ (40,330)	$ (34,775)