Condensed Consolidating Financial Information (Restatements) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Other current assets	$ 314,060		$ 295,421
Assets, Current	326,371		306,316
Assets	5,569,374		5,459,599
Advances to Affiliate	0		0
Current liabilities	257,374		302,136
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	216,298		192,072
Liabilities	3,585,533		3,438,848
Liabilities and Equity	5,569,374		5,459,599
Net Cash Provided by (Used in) Operating Activities	41,106	$ 62,465
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(134,551)	(103,630)
Increase (Decrease) Due from Affiliates	0	0
Net Cash Provided by (Used in) Financing Activities	94,861	42,841
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	25		50
Assets, Current	31		56
Assets	5,108,668		4,986,493
Advances to Affiliate	2,745,965		2,619,493
Current liabilities	28,719		35,338
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	0		0
Liabilities	3,117,294		2,957,392
Liabilities and Equity	5,108,668		4,986,493
Net Cash Provided by (Used in) Operating Activities	33,558	34,229
Increase (Decrease) in Due to Affiliates	(126,471)	(86,700)
Net Cash Provided by (Used in) Investing Activities	(126,471)	(75,687)
Increase (Decrease) Due from Affiliates	0	0
Net Cash Provided by (Used in) Financing Activities	92,913	41,458
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	304,833		285,313
Assets, Current	313,900		293,601
Assets	5,571,073		5,454,185
Advances to Affiliate	0		0
Current liabilities	229,053		267,294
Due to Affiliate	2,799,729		2,666,527
OTHER LONG-TERM LIABILITIES	174,620		150,877
Liabilities	3,226,688		3,107,284
Liabilities and Equity	5,571,073		5,454,185
Net Cash Provided by (Used in) Operating Activities	70,795	63,024
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(133,080)	(102,301)
Increase (Decrease) Due from Affiliates	133,203	94,858
Net Cash Provided by (Used in) Financing Activities	63,064	39,699
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	9,468		10,422
Assets, Current	12,706		13,023
Assets	260,452		256,334
Advances to Affiliate	53,764		47,034
Current liabilities	0		0
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	171,189		167,006
Liabilities	171,189		167,006
Liabilities and Equity	260,452		256,334
Net Cash Provided by (Used in) Operating Activities	3,661	10,730
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	0	0
Increase (Decrease) Due from Affiliates	(6,733)	(8,158)
Net Cash Provided by (Used in) Financing Activities	(3,024)	(9,476)
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	(266)		(364)
Assets, Current	(266)		(364)
Assets	(5,370,819)		(5,237,413)
Advances to Affiliate	(2,799,729)		(2,666,527)
Current liabilities	(398)		(496)
Due to Affiliate	(2,799,729)		(2,666,527)
OTHER LONG-TERM LIABILITIES	(129,511)		(125,811)
Liabilities	(2,929,638)		(2,792,834)
Liabilities and Equity	(5,370,819)		$ (5,237,413)
Net Cash Provided by (Used in) Operating Activities	(66,908)	(45,518)
Increase (Decrease) in Due to Affiliates	126,471	86,700
Net Cash Provided by (Used in) Investing Activities	125,000	74,358
Increase (Decrease) Due from Affiliates	(126,470)	(86,700)
Net Cash Provided by (Used in) Financing Activities	$ (58,092)	(28,840)
As Previously Reported | Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(52,471)
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		11,013
As Previously Reported | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		157,725
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		(55,159)
As Previously Reported | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		2,729
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		(1,318)
As Previously Reported | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		(12,342)
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		57,860
Adjustment | Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		86,700
Increase (Decrease) in Due to Affiliates		(86,700)
Net Cash Provided by (Used in) Investing Activities		(86,700)
Adjustment | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(94,701)
Increase (Decrease) Due from Affiliates		94,858
Net Cash Provided by (Used in) Financing Activities		94,858
Adjustment | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		8,001
Increase (Decrease) Due from Affiliates		(8,158)
Net Cash Provided by (Used in) Financing Activities		(8,158)
Adjustment | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Increase (Decrease) in Due to Affiliates		86,700
Net Cash Provided by (Used in) Investing Activities		86,700
Increase (Decrease) Due from Affiliates		(86,700)
Net Cash Provided by (Used in) Financing Activities		$ (86,700)