Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 208,119	$ 109,338
Payments to acquire fixed and intangible assets	(336,061)	(199,634)
Cash distributions received from equity investees - return of investment	11,352	8,272
Investments in equity investees	(40,426)	(71,443)
Payments to Acquire Businesses, Gross	0	230,921
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	178	810
Other, net	(4,706)	(1,004)
Net cash used in investing activities	(369,663)	(493,920)
Borrowings on senior secured credit facility	1,420,900	1,234,500
Repayments on senior secured credit facility	(1,668,700)	(1,323,200)
Proceeds from issuance of senior unsecured notes, including premium	350,000	350,000
Debt issuance costs	(11,857)	(8,157)
Proceeds from Issuance of Common Limited Partners Units	225,610	263,597
Distributions to partners/owners	(146,350)	(122,097)
Other, net	0	(4,484)
Net cash provided by financing activities	169,603	390,159
Net increase in cash and cash equivalents	8,059	5,577
Cash and cash equivalents at beginning of period	8,866	11,282
Cash and cash equivalents at end of period	16,925	16,859
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	17,760	(139,747)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	38,236	8,711
Investments in equity investees	(225,610)	(263,597)
Payments to Acquire Businesses, Gross		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	(187,374)	(254,886)
Borrowings on senior secured credit facility	1,420,900	1,234,500
Repayments on senior secured credit facility	(1,668,700)	(1,323,200)
Proceeds from issuance of senior unsecured notes, including premium	350,000	350,000
Debt issuance costs	(11,857)	(8,157)
Proceeds from Issuance of Common Limited Partners Units		263,597
Distributions to partners/owners	(146,350)	(122,097)
Other, net	0	0
Net cash provided by financing activities	169,603	394,643
Net increase in cash and cash equivalents	(11)	10
Cash and cash equivalents at beginning of period	20	10
Cash and cash equivalents at end of period	9	20
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
Payments to Acquire Businesses, Gross		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
Proceeds from Issuance of Common Limited Partners Units		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	288,988	348,447
Payments to acquire fixed and intangible assets	(330,287)	(188,878)
Cash distributions received from equity investees - return of investment	11,353	8,272
Investments in equity investees	(40,426)	(71,443)
Payments to Acquire Businesses, Gross		230,921
Repayments on loan to non-guarantor subsidiary	3,697	3,341
Proceeds from asset sales	178	810
Other, net	(4,690)	(1,004)
Net cash used in investing activities	(360,175)	(479,823)
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
Proceeds from Issuance of Common Limited Partners Units		263,597
Distributions to partners/owners	(146,350)	(122,097)
Other, net	106	(5,476)
Net cash provided by financing activities	79,366	136,024
Net increase in cash and cash equivalents	8,179	4,648
Cash and cash equivalents at beginning of period	8,061	11,214
Cash and cash equivalents at end of period	16,240	15,862
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	10,706	20,540
Payments to acquire fixed and intangible assets	(5,774)	(10,756)
Cash distributions received from equity investees - return of investment	0	0
Investments in equity investees	0	0
Payments to Acquire Businesses, Gross		0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	(16)	0
Net cash used in investing activities	(5,790)	(10,756)
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
Proceeds from Issuance of Common Limited Partners Units		0
Distributions to partners/owners	(1,253)	(6,545)
Other, net	(3,772)	(2,320)
Net cash provided by financing activities	(5,025)	(8,865)
Net increase in cash and cash equivalents	(109)	919
Cash and cash equivalents at beginning of period	785	58
Cash and cash equivalents at end of period	676	977
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(109,335)	(119,902)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	(38,237)	(8,711)
Investments in equity investees	225,610	263,597
Payments to Acquire Businesses, Gross		0
Repayments on loan to non-guarantor subsidiary	(3,697)	(3,341)
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	183,676	251,545
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
Proceeds from Issuance of Common Limited Partners Units		(263,597)
Distributions to partners/owners	147,603	128,642
Other, net	3,666	3,312
Net cash provided by financing activities	(74,341)	(131,643)
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