Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 142,938	$ 39,146
Payments to acquire fixed and intangible assets	(116,702)	(15,157)
Cash distributions received from equity investees - return of investment	10,918	8,577
Investments in equity investees	(57,072)	(194)
Acquisitions	(205,576)	(143,489)
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	667	4,444
Other, net	(1,012)	129
Net cash used in investing activities	(368,777)	(145,690)
Borrowings on senior secured credit facility	1,407,000	571,700
Repayments on senior secured credit facility	(1,333,300)	(563,800)
Proceeds from issuance of senior unsecured notes, including premium	101,000	0
Debt issuance costs	(7,109)	(3,018)
Issuance of ownership interests to partners for cash	169,421	184,969
Distributions to partners/owners	(104,008)	(82,067)
Other, net	(2,521)	(2,626)
Net cash provided by financing activities	230,483	105,158
Net increase (decrease) in cash and cash equivalents	4,644	(1,386)
Cash and cash equivalents at beginning of period	10,817	5,762
Cash and cash equivalents at end of period	15,461	4,376
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(91,453)	(4,881)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	27,878	82,067
Investments in equity investees	(169,421)	(184,969)
Acquisitions	0	0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	(141,543)	(102,902)
Borrowings on senior secured credit facility	1,407,000	571,700
Repayments on senior secured credit facility	(1,333,300)	(563,800)
Proceeds from issuance of senior unsecured notes, including premium	101,000
Debt issuance costs	(7,109)	(3,018)
Issuance of ownership interests to partners for cash	169,421	184,969
Distributions to partners/owners	(104,008)	(82,067)
Other, net	0	0
Net cash provided by financing activities	233,004	107,784
Net increase (decrease) in cash and cash equivalents	8	1
Cash and cash equivalents at beginning of period	3	1
Cash and cash equivalents at end of period	11	2
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	0	0
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	0	0
Investments in equity investees	0	0
Acquisitions	0	0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	0	0
Borrowings on senior secured credit facility	0	0
Repayments on senior secured credit facility	0	0
Proceeds from issuance of senior unsecured notes, including premium	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash	0	0
Distributions to partners/owners	0	0
Other, net	0	0
Net cash provided by financing activities	0	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	304,617	41,160
Payments to acquire fixed and intangible assets	(112,665)	(15,060)
Cash distributions received from equity investees - return of investment	10,918	8,577
Investments in equity investees	(57,072)	(194)
Acquisitions	(205,576)	(143,489)
Repayments on loan to non-guarantor subsidiary	3,019	2,729
Proceeds from asset sales	667	4,444
Other, net	(1,012)	129
Net cash used in investing activities	(361,721)	(142,864)
Borrowings on senior secured credit facility	0	0
Repayments on senior secured credit facility	0	0
Proceeds from issuance of senior unsecured notes, including premium	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash	169,421	184,969
Distributions to partners/owners	(104,008)	(82,067)
Other, net	(2,738)	(2,626)
Net cash provided by financing activities	62,675	100,276
Net increase (decrease) in cash and cash equivalents	5,571	(1,428)
Cash and cash equivalents at beginning of period	9,182	5,082
Cash and cash equivalents at end of period	14,753	3,654
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	17,700	2,844
Payments to acquire fixed and intangible assets	(4,037)	(97)
Cash distributions received from equity investees - return of investment	0	0
Investments in equity investees	0	0
Acquisitions	0	0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	(4,037)	(97)
Borrowings on senior secured credit facility	0	0
Repayments on senior secured credit facility	0	0
Proceeds from issuance of senior unsecured notes, including premium	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash	0	0
Distributions to partners/owners	(11,819)	0
Other, net	(2,779)	(2,706)
Net cash provided by financing activities	(14,598)	(2,706)
Net increase (decrease) in cash and cash equivalents	(935)	41
Cash and cash equivalents at beginning of period	1,632	679
Cash and cash equivalents at end of period	697	720
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(87,926)	23
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	(27,878)	(82,067)
Investments in equity investees	169,421	184,969
Acquisitions	0	0
Repayments on loan to non-guarantor subsidiary	(3,019)	(2,729)
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	138,524	100,173
Borrowings on senior secured credit facility	0	0
Repayments on senior secured credit facility	0	0
Proceeds from issuance of senior unsecured notes, including premium	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash	(169,421)	(184,969)
Distributions to partners/owners	115,827	82,067
Other, net	2,996	2,706
Net cash provided by financing activities	(50,598)	(100,196)
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and cash equivalents at end of period	$ 0	$ 0