Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 109,338	$ 142,938
Payments to acquire fixed and intangible assets	(199,634)	(116,702)
Cash distributions received from equity investees - return of investment	8,272	10,918
Investments in equity investees	(71,443)	(57,072)
Acquisitions	(230,921)	(205,576)
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	810	667
Other, net	(1,004)	(1,012)
Net cash used in investing activities	(493,920)	(368,777)
Borrowings on senior secured credit facility	1,234,500	1,407,000
Repayments on senior secured credit facility	(1,323,200)	(1,333,300)
Proceeds from issuance of senior unsecured notes, including premium	350,000	101,000
Debt issuance costs	(8,157)	(7,109)
Issuance of ownership interests to partners for cash	263,597	169,421
Distributions to partners/owners	(122,097)	(104,008)
Other, net	(4,484)	(2,521)
Net cash provided by financing activities	390,159	230,483
Net increase in cash and cash equivalents	5,577	4,644
Cash and cash equivalents at beginning of period	11,282	10,817
Cash and cash equivalents at end of period	16,859	15,461
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(139,747)	(91,453)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	8,711	27,878
Investments in equity investees	(263,597)	(169,421)
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	(254,886)	(141,543)
Borrowings on senior secured credit facility	1,234,500	1,407,000
Repayments on senior secured credit facility	(1,323,200)	(1,333,300)
Proceeds from issuance of senior unsecured notes, including premium	350,000	101,000
Debt issuance costs	(8,157)	(7,109)
Issuance of ownership interests to partners for cash		169,421
Distributions to partners/owners	(122,097)	(104,008)
Other, net	0	0
Net cash provided by financing activities	394,643	233,004
Net increase in cash and cash equivalents	10	8
Cash and cash equivalents at beginning of period	10	3
Cash and cash equivalents at end of period	20	11
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	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash		0
Distributions to partners/owners	0	0
Other, net	0	0
Net cash provided by financing activities	0	0
Net increase 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	348,447	304,617
Payments to acquire fixed and intangible assets	(188,878)	(112,665)
Cash distributions received from equity investees - return of investment	8,272	10,918
Investments in equity investees	(71,443)	(57,072)
Acquisitions	230,921	(205,576)
Repayments on loan to non-guarantor subsidiary	3,341	3,019
Proceeds from asset sales	810	667
Other, net	(1,004)	(1,012)
Net cash used in investing activities	(479,823)	(361,721)
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	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash		169,421
Distributions to partners/owners	(122,097)	(104,008)
Other, net	(5,476)	(2,738)
Net cash provided by financing activities	136,024	62,675
Net increase in cash and cash equivalents	4,648	5,571
Cash and cash equivalents at beginning of period	11,214	9,182
Cash and cash equivalents at end of period	15,862	14,753
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	20,540	17,700
Payments to acquire fixed and intangible assets	(10,756)	(4,037)
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	(10,756)	(4,037)
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	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash		0
Distributions to partners/owners	(6,545)	(11,819)
Other, net	(2,320)	(2,779)
Net cash provided by financing activities	(8,865)	(14,598)
Net increase in cash and cash equivalents	919	(935)
Cash and cash equivalents at beginning of period	58	1,632
Cash and cash equivalents at end of period	977	697
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(119,902)	(87,926)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	(8,711)	(27,878)
Investments in equity investees	263,597	169,421
Acquisitions	0	0
Repayments on loan to non-guarantor subsidiary	(3,341)	(3,019)
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	251,545	138,524
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	0
Debt issuance costs	0	0
Issuance of ownership interests to partners for cash		(169,421)
Distributions to partners/owners	128,642	115,827
Other, net	3,312	2,996
Net cash provided by financing activities	(131,643)	(50,598)
Net increase 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