Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Supply And Logistics Revenues	$ 527,218	$ 883,108	$ 930,722	$ 1,771,421
Refinery services	46,324	52,801	92,448	106,994
Marine Transportation Revenues	62,594	55,948	119,965	112,241
Pipeline transportation services	20,191	23,192	40,049	44,112
Total revenues	656,327	1,015,049	1,183,184	2,034,768
Supply and logistics costs	515,907	872,169	912,064	1,748,749
Marine Transportation Operating Costs	35,286	36,905	66,880	72,679
Refinery services operating costs	25,835	31,148	52,862	64,343
Pipeline transportation operating costs	6,882	8,383	13,796	15,861
General and administrative	14,832	14,696	28,053	26,706
Depreciation and amortization	28,205	20,491	55,330	39,771
Total costs and expenses	626,947	983,792	1,128,985	1,968,109
OPERATING INCOME	29,380	31,257	54,199	66,659
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	18,661	4,922	34,180	12,740
Interest Income (Expense), Net	(17,905)	(14,069)	(37,120)	(26,873)
Other Nonoperating Income (Expense)	(17,529)	0	(17,529)	0
Income from continuing operations before income taxes	12,607	22,110	33,730	52,526
Income tax (expense) benefit	(942)	(962)	(1,850)	(1,603)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	11,665	21,148	31,880	50,923
NET INCOME	11,665	21,148	31,880	50,923
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply And Logistics Revenues	0	0	0	0
Refinery services	0	0	0	0
Marine Transportation Revenues	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
Marine Transportation Operating 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	48,777	35,214	88,184	77,793
Equity in earnings of equity investees	0	0	0	0
Interest Income (Expense), Net	(17,887)	(14,066)	(37,079)	(26,870)
Other Nonoperating Income (Expense)	(19,225)		(19,225)
Income from continuing operations before income taxes	11,665	21,148	31,880	50,923
Income tax (expense) benefit	0	0	0	0
NET INCOME	11,665	21,148	31,880	50,923
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Supply And Logistics Revenues	0	0	0	0
Refinery services	0	0	0	0
Marine Transportation Revenues	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
Marine Transportation Operating 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 Income (Expense), Net	0	0	0	0
Other Nonoperating Income (Expense)	0		0
Income from continuing operations 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 Revenues	529,073	883,108	930,722	1,771,421
Refinery services	45,272	51,694	90,591	103,424
Marine Transportation Revenues	62,594	55,948	119,965	112,241
Pipeline transportation services	14,378	16,942	27,792	31,477
Total revenues	651,317	1,007,692	1,169,070	2,018,563
Supply and logistics costs	517,230	872,169	912,064	1,748,749
Marine Transportation Operating Costs	35,286	36,905	66,880	72,679
Refinery services operating costs	25,081	30,399	51,300	61,990
Pipeline transportation operating costs	6,974	8,172	13,455	15,408
General and administrative	14,861	14,696	28,053	26,706
Depreciation and amortization	28,249	19,851	54,045	38,511
Total costs and expenses	627,681	982,192	1,125,797	1,964,043
OPERATING INCOME	23,636	25,500	43,273	54,520
Equity in earnings of subsidiaries	2,099	1,796	3,486	3,572
Equity in earnings of equity investees	18,661	4,922	34,180	12,740
Interest Income (Expense), Net	3,787	3,932	7,601	7,898
Other Nonoperating Income (Expense)	1,696		1,696
Income from continuing operations before income taxes	49,879	36,150	90,236	78,730
Income tax (expense) benefit	(1,023)	(890)	(1,934)	(1,477)
NET INCOME	48,856	35,260	88,302	77,253
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Supply And Logistics Revenues	(3,966)	0	0	0
Refinery services	5,859	4,571	7,971	10,645
Marine Transportation Revenues	0	0	0	0
Pipeline transportation services	5,813	6,250	12,257	12,635
Total revenues	7,706	10,821	20,228	23,280
Supply and logistics costs	(3,433)	0	0	0
Marine Transportation Operating Costs	0	0	0	0
Refinery services operating costs	5,526	4,212	7,645	10,058
Pipeline transportation operating costs	(92)	211	341	453
General and administrative	(29)	0	0	0
Depreciation and amortization	(44)	640	1,285	1,260
Total costs and expenses	1,928	5,063	9,271	11,771
OPERATING INCOME	5,778	5,758	10,957	11,509
Equity in earnings of subsidiaries	0	0	0	0
Equity in earnings of equity investees	0	0	0	0
Interest Income (Expense), Net	(3,805)	(3,935)	(7,642)	(7,901)
Other Nonoperating Income (Expense)	0		0
Income from continuing operations before income taxes	1,973	1,823	3,315	3,608
Income tax (expense) benefit	81	(72)	84	(126)
NET INCOME	2,054	1,751	3,399	3,482
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Supply And Logistics Revenues	2,111	0	0	0
Refinery services	(4,807)	(3,464)	(6,114)	(7,075)
Marine Transportation Revenues	0	0	0	0
Pipeline transportation services	0	0	0	0
Total revenues	(2,696)	(3,464)	(6,114)	(7,075)
Supply and logistics costs	2,110	0	0	0
Marine Transportation Operating Costs	0	0	0	0
Refinery services operating costs	(4,772)	(3,463)	(6,083)	(7,705)
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	(2,662)	(3,463)	(6,083)	(7,705)
OPERATING INCOME	(34)	(1)	(31)	630
Equity in earnings of subsidiaries	(50,876)	(37,010)	(91,670)	(81,365)
Equity in earnings of equity investees	0	0	0	0
Interest Income (Expense), Net	0	0	0	0
Other Nonoperating Income (Expense)	0		0
Income from continuing operations before income taxes	(50,910)	(37,011)	(91,701)	(80,735)
Income tax (expense) benefit	0	0	0	0
NET INCOME	$ (50,910)	$ (37,011)	$ (91,701)	$ (80,735)