Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 95,786	$ 99,279
Payments to acquire fixed and intangible assets	(107,166)	(80,378)
Cash distributions received from equity investees - return of investment	5,539	7,309
Investments in equity investees	(66,207)	(51,431)
Acquisitions	0	(205,576)
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	626	654
Other, net	171	(915)
Net cash used in investing activities	(167,037)	(330,337)
Borrowings on senior secured credit facility	668,500	700,700
Repayments on senior secured credit facility	(849,400)	(665,000)
Proceeds from issuance of senior unsecured notes, including premium	350,000	101,000
Debt issuance costs	(8,157)	(2,690)
Issuance of ownership interests to partners for cash	0	169,421
Distributions to partners/owners	(79,795)	(67,445)
Other, net	(2,511)	(703)
Net cash provided by financing activities	78,637	235,283
Net increase in cash and cash equivalents	7,386	4,225
Cash and cash equivalents at beginning of period	11,282	10,817
Cash and cash equivalents at end of period	18,668	15,042
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(86,739)	(86,721)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	5,585	20,155
Investments in equity investees	0	(169,421)
Acquisitions		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	5,585	(149,266)
Borrowings on senior secured credit facility	668,500	700,700
Repayments on senior secured credit facility	(849,400)	(665,000)
Proceeds from issuance of senior unsecured notes, including premium	350,000	101,000
Debt issuance costs	(8,157)	(2,690)
Issuance of ownership interests to partners for cash		169,421
Distributions to partners/owners	(79,795)	(67,445)
Other, net	0	0
Net cash provided by financing activities	81,148	235,986
Net increase in cash and cash equivalents	(6)	(1)
Cash and cash equivalents at beginning of period	10	3
Cash and cash equivalents at end of period	4	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
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	245,918	231,807
Payments to acquire fixed and intangible assets	(98,050)	(78,937)
Cash distributions received from equity investees - return of investment	5,539	7,309
Investments in equity investees	(66,207)	(52,226)
Acquisitions		(205,576)
Repayments on loan to non-guarantor subsidiary	2,199	1,987
Proceeds from asset sales	626	654
Other, net	171	(120)
Net cash used in investing activities	(155,722)	(326,909)
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	(79,795)	(67,445)
Other, net	(3,382)	(1,403)
Net cash provided by financing activities	(83,177)	100,573
Net increase in cash and cash equivalents	7,019	5,471
Cash and cash equivalents at beginning of period	11,214	9,182
Cash and cash equivalents at end of period	18,233	14,653
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	17,342	10,216
Payments to acquire fixed and intangible assets	(9,116)	(1,441)
Cash distributions received from equity investees - return of investment	0	0
Investments in equity investees	0	0
Acquisitions		0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	0	(795)
Net cash used in investing activities	(9,116)	(2,236)
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		795
Distributions to partners/owners	(6,545)	(8,750)
Other, net	(1,308)	(1,270)
Net cash provided by financing activities	(7,853)	(9,225)
Net increase in cash and cash equivalents	373	(1,245)
Cash and cash equivalents at beginning of period	58	1,632
Cash and cash equivalents at end of period	431	387
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(80,735)	(56,023)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	(5,585)	(20,155)
Investments in equity investees	0	170,216
Acquisitions		0
Repayments on loan to non-guarantor subsidiary	(2,199)	(1,987)
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	(7,784)	148,074
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		(170,216)
Distributions to partners/owners	86,340	76,195
Other, net	2,179	1,970
Net cash provided by financing activities	88,519	(92,051)
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