Condensed Consolidating Financial Information (Condensed Consolidating Statements Of Cash Flow) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 189,304	$ 58,307	$ 90,463
Payments to acquire fixed and intangible assets	(146,456)	(27,992)	(12,400)
Cash distributions received from equity investees - return of investment	14,909	11,436	2,859
Investments in equity investees	(63,749)	0	0
Acquisitions	(205,576)	(163,673)	(332,462)
Proceeds from Sales of Assets, Investing Activities	773	6,424	1,146
Other, net	(1,508)	1,508	119
Net cash used in investing activities	(401,607)	(172,297)	(340,738)
Borrowings on senior secured credit facility	1,674,400	777,600	691,829
Repayments on senior secured credit facility	(1,583,700)	(728,300)	(698,729)
Proceeds from issuance of senior unsecured notes, including premium	101,000	0	250,000
Credit facility and senior unsecured notes issuance fees	(7,105)	(3,018)	(14,586)
Issuance of ownership interests to partners for cash	169,421	184,969	118,875
Acquisition of noncontrolling interest in DG Marine			(26,288)
Distributions to partners/owners	(142,383)	(112,844)	(70,352)
Other, net	(1,135)	(638)	(1,140)
Net cash provided by financing activities	212,768	119,045	251,889
Net increase in cash and cash equivalents	465	5,055	1,614
Cash and cash equivalents at beginning of period	10,817	5,762	4,148
Cash and cash equivalents at end of period	11,282	10,817	5,762
Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(70,083)	(41,392)	(569,824)
Cash distributions received from equity investees - return of investment	27,878	107,956	45,889
Investments in equity investees	(169,421)	(184,969)	(118,875)
Net cash used in investing activities	(141,543)	(77,013)	(72,986)
Borrowings on senior secured credit facility	1,674,400	777,600	449,729
Repayments on senior secured credit facility	(1,583,700)	(728,300)	(455,629)
Transfer of senior secured credit facility to Parent			364,772
Proceeds from issuance of senior unsecured notes, including premium	101,000		250,000
Credit facility and senior unsecured notes issuance fees	(7,105)	(3,018)	(14,586)
Issuance of ownership interests to partners for cash	169,421	184,969	118,875
Distributions to partners/owners	(142,383)	(112,844)	(70,352)
Net cash provided by financing activities	211,633	118,407	642,809
Net increase in cash and cash equivalents	7	2	(1)
Cash and cash equivalents at beginning of period	3	1	2
Cash and cash equivalents at end of period	10	3	1
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	362,855	99,360	680,974
Payments to acquire fixed and intangible assets	(137,362)	(27,417)	(12,372)
Cash distributions received from equity investees - return of investment	14,909	11,436	2,859
Investments in equity investees	(63,749)	(19,999)	0
Acquisitions	(205,576)	(142,886)	(332,462)
Repayments on loan to non-guarantor subsidiary	4,078	3,685	3,331
Proceeds from Sales of Assets, Investing Activities	773	6,424	1,146
Other, net	(1,557)	770	119
Net cash used in investing activities	(388,484)	(167,987)	(337,379)
Borrowings on senior secured credit facility			242,100
Repayments on senior secured credit facility			(243,100)
Transfer of senior secured credit facility to Parent			(364,772)
Issuance of ownership interests to partners for cash	169,421	184,969	118,888
Acquisition of noncontrolling interest in DG Marine			(26,288)
Distributions to partners/owners	(142,383)	(112,844)	(70,359)
Other, net	(623)	(602)	(1,134)
Net cash provided by financing activities	27,661	72,727	(342,397)
Net increase in cash and cash equivalents	2,032	4,100	1,198
Cash and cash equivalents at beginning of period	9,182	5,082	3,884
Cash and cash equivalents at end of period	11,214	9,182	5,082
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	25,186	17,696	3,746
Payments to acquire fixed and intangible assets	(9,094)	(575)	(28)
Acquisitions	0	(20,787)
Other, net	49	738
Net cash used in investing activities	(9,045)	(20,624)	(28)
Issuance of ownership interests to partners for cash	0	19,999	0
Distributions to partners/owners	(14,183)	(12,500)
Other, net	3,532	3,618	3,301
Net cash provided by financing activities	(17,715)	3,881	(3,301)
Net increase in cash and cash equivalents	(1,574)	953	417
Cash and cash equivalents at beginning of period	1,632	679	262
Cash and cash equivalents at end of period	58	1,632	679
Eliminations
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(128,654)	(17,357)	(24,433)
Cash distributions received from equity investees - return of investment	(27,878)	(107,956)	(45,889)
Investments in equity investees	169,421	204,968	118,875
Repayments on loan to non-guarantor subsidiary	(4,078)	(3,685)	(3,331)
Net cash used in investing activities	137,465	93,327	69,655
Issuance of ownership interests to partners for cash	(169,421)	(204,968)	(118,888)
Acquisition of noncontrolling interest in DG Marine			0
Distributions to partners/owners	156,566	125,344	70,359
Other, net	(4,044)	(3,654)	(3,307)
Net cash provided by financing activities	$ (8,811)	$ (75,970)	$ (45,222)