Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	$ 76,126	$ 790
Pipeline transportation services	18,151	19,068
Refinery services	42,536	46,124
Marine Transportation Revenues	52,036	57,371
Supply And Logistics Revenues	189,565	403,504
Total revenues	378,414	526,857
Supply and logistics costs	181,033	396,157
Marine Transportation Operating Costs	33,022	31,594
Refinery services operating costs	20,985	27,027
Offshore Pipeline Transportation Operating Costs	17,934	243
Onshore Pipeline Transportation Operating Costs	6,736	6,671
General and administrative	12,221	13,221
Depreciation and amortization	46,635	27,125
Total costs and expenses	318,566	502,038
OPERATING INCOME	59,848	24,819
Equity in earnings of subsidiaries	0	0
Equity in earnings of equity investees	10,717	15,519
Interest Income (Expense), Net	(34,387)	(19,215)
Income from continuing operations before income taxes	36,178	21,123
Income tax (expense) benefit	(1,001)	(908)
NET INCOME	35,177	20,215
Net Income (Loss) Attributable to Noncontrolling Interest	126	0
Net Income (Loss) Attributable to Parent	35,303	20,215
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	0	0
Pipeline transportation services	0	0
Refinery services	0	0
Marine Transportation Revenues	0	0
Supply And Logistics Revenues	0	0
Total revenues	0	0
Supply and logistics costs	0	0
Marine Transportation Operating Costs	0	0
Refinery services operating costs	0	0
Offshore Pipeline Transportation Operating Costs	0	0
Onshore 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	68,658	39,407
Equity in earnings of equity investees	0	0
Interest Income (Expense), Net	(34,325)	(19,192)
Income from continuing operations before income taxes	34,333	20,215
Income tax (expense) benefit	0	0
NET INCOME	34,333	20,215
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	34,333
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	0	0
Pipeline transportation services	0	0
Refinery services	0	0
Marine Transportation Revenues	0	0
Supply And Logistics Revenues	0	0
Total revenues	0	0
Supply and logistics costs	0	0
Marine Transportation Operating Costs	0	0
Refinery services operating costs	0	0
Offshore Pipeline Transportation Operating Costs	0	0
Onshore 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 Income (Expense), Net	0	0
Income from continuing operations before income taxes	0	0
Income tax (expense) benefit	0	0
NET INCOME	0	0
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	76,126	790
Pipeline transportation services	12,606	12,820
Refinery services	42,294	45,319
Marine Transportation Revenues	52,036	57,371
Supply And Logistics Revenues	189,565	403,504
Total revenues	372,627	519,804
Supply and logistics costs	181,033	396,157
Marine Transportation Operating Costs	33,022	31,594
Refinery services operating costs	20,446	26,219
Offshore Pipeline Transportation Operating Costs	17,305	243
Onshore Pipeline Transportation Operating Costs	6,440	6,507
General and administrative	12,221	13,221
Depreciation and amortization	46,010	26,480
Total costs and expenses	316,477	500,421
OPERATING INCOME	56,150	19,383
Equity in earnings of subsidiaries	78	1,640
Equity in earnings of equity investees	10,717	15,519
Interest Income (Expense), Net	3,634	3,814
Income from continuing operations before income taxes	70,579	40,356
Income tax (expense) benefit	(910)	(911)
NET INCOME	69,669	39,445
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	69,669
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	0	0
Pipeline transportation services	5,545	6,248
Refinery services	803	2,112
Marine Transportation Revenues	0	0
Supply And Logistics Revenues	0	0
Total revenues	6,348	8,360
Supply and logistics costs	0	0
Marine Transportation Operating Costs	0	0
Refinery services operating costs	1,100	2,119
Offshore Pipeline Transportation Operating Costs	629	0
Onshore Pipeline Transportation Operating Costs	296	164
General and administrative	0	0
Depreciation and amortization	625	645
Total costs and expenses	2,650	2,928
OPERATING INCOME	3,698	5,432
Equity in earnings of subsidiaries	0	0
Equity in earnings of equity investees	0	0
Interest Income (Expense), Net	(3,696)	(3,837)
Income from continuing operations before income taxes	2	1,595
Income tax (expense) benefit	(91)	3
NET INCOME	(89)	1,598
Net Income (Loss) Attributable to Noncontrolling Interest	126
Net Income (Loss) Attributable to Parent	37
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Offshore Pipeline Transportation Services Revenues	0	0
Pipeline transportation services	0	0
Refinery services	(561)	(1,307)
Marine Transportation Revenues	0	0
Supply And Logistics Revenues	0	0
Total revenues	(561)	(1,307)
Supply and logistics costs	0	0
Marine Transportation Operating Costs	0	0
Refinery services operating costs	(561)	(1,311)
Offshore Pipeline Transportation Operating Costs	0	0
Onshore Pipeline Transportation Operating Costs	0	0
General and administrative	0	0
Depreciation and amortization	0	0
Total costs and expenses	(561)	(1,311)
OPERATING INCOME	0	4
Equity in earnings of subsidiaries	(68,736)	(41,047)
Equity in earnings of equity investees	0	0
Interest Income (Expense), Net	0	0
Income from continuing operations before income taxes	(68,736)	(41,043)
Income tax (expense) benefit	0	0
NET INCOME	(68,736)	$ (41,043)
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net Income (Loss) Attributable to Parent	$ (68,736)