Condensed Consolidating Financial Information (Condensed Consolidating Statement Of Cash Flows) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	$ 106,088	$ 38,816
Payments to acquire fixed and intangible assets	(104,254)	(47,151)
Cash distributions received from equity investees - return of investment	2,636	3,583
Investments in equity investees	(10,709)	(64,534)
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	72	332
Other, net	(1,270)	755
Net cash used in investing activities	(113,525)	(107,015)
Borrowings on senior secured credit facility	249,900	386,400
Repayments on senior secured credit facility	(192,200)	(615,400)
Proceeds from issuance of senior unsecured notes, including premium	0	350,000
Debt issuance costs	0	(8,157)
Distributions to partners/owners	(47,453)	(39,390)
Other, net	0	(553)
Net cash provided by financing activities	10,247	72,900
Net increase in cash and cash equivalents	2,810	4,701
Cash and cash equivalents at beginning of period	8,866	11,282
Cash and cash equivalents at end of period	11,676	15,983
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(27,470)	(73,458)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	17,222	0
Investments in equity investees		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	17,222	0
Borrowings on senior secured credit facility	249,900	386,400
Repayments on senior secured credit facility	(192,200)	(615,400)
Proceeds from issuance of senior unsecured notes, including premium		350,000
Debt issuance costs		(8,157)
Distributions to partners/owners	(47,453)	(39,390)
Other, net	0	0
Net cash provided by financing activities	10,247	73,453
Net increase in cash and cash equivalents	(1)	(5)
Cash and cash equivalents at beginning of period	20	10
Cash and cash equivalents at end of period	19	5
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
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
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	162,508	145,881
Payments to acquire fixed and intangible assets	(104,130)	(41,950)
Cash distributions received from equity investees - return of investment	2,636	3,583
Investments in equity investees	(10,709)	(64,534)
Repayments on loan to non-guarantor subsidiary	1,201	1,086
Proceeds from asset sales	72	332
Other, net	(1,270)	749
Net cash used in investing activities	(112,200)	(100,734)
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
Distributions to partners/owners	(47,453)	(39,390)
Other, net	(42)	(1,135)
Net cash provided by financing activities	(47,495)	(40,525)
Net increase in cash and cash equivalents	2,813	4,622
Cash and cash equivalents at beginning of period	8,061	11,214
Cash and cash equivalents at end of period	10,874	15,836
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	2,522	9,500
Payments to acquire fixed and intangible assets	(124)	(5,201)
Cash distributions received from equity investees - return of investment	0	0
Investments in equity investees	0	0
Repayments on loan to non-guarantor subsidiary	0	0
Proceeds from asset sales	0	0
Other, net	0	6
Net cash used in investing activities	(124)	(5,195)
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
Distributions to partners/owners	(1,251)	(3,727)
Other, net	(1,149)	(494)
Net cash provided by financing activities	(2,400)	(4,221)
Net increase in cash and cash equivalents	(2)	84
Cash and cash equivalents at beginning of period	785	58
Cash and cash equivalents at end of period	783	142
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net cash provided by operating activities	(31,472)	(43,107)
Payments to acquire fixed and intangible assets	0	0
Cash distributions received from equity investees - return of investment	(17,222)	0
Investments in equity investees	0	0
Repayments on loan to non-guarantor subsidiary	(1,201)	(1,086)
Proceeds from asset sales	0	0
Other, net	0	0
Net cash used in investing activities	(18,423)	(1,086)
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
Distributions to partners/owners	48,704	43,117
Other, net	1,191	1,076
Net cash provided by financing activities	49,895	44,193
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