Condensed Consolidating Financial Information (Restatements) (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Condensed Financial Statements, Captions [Line Items]
Other current assets	$ 329,828		$ 345,904
Assets, Current	345,396		355,366
Assets	5,449,245		3,230,374
Advances to Affiliate	0		0
Current liabilities	326,106		363,145
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	182,915		18,233
Liabilities	3,384,051		2,001,171
Liabilities and Equity	5,449,245		3,230,374
Net Cash Provided by (Used in) Operating Activities	192,128	$ 208,119
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(1,860,038)	(369,663)
Increase (Decrease) Due from Affiliates	0	0
Net Cash Provided by (Used in) Financing Activities	1,674,016	169,603
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	75		53
Assets, Current	81		62
Assets	4,954,260		2,841,258
Advances to Affiliate	2,543,341		1,378,520
Current liabilities	28,197		11,016
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	0		0
Liabilities	2,882,230		1,612,055
Liabilities and Equity	4,954,260		2,841,258
Net Cash Provided by (Used in) Operating Activities	(53,478)	73,525
Increase (Decrease) in Due to Affiliates	(1,164,821)	(55,765)
Net Cash Provided by (Used in) Investing Activities	(1,619,315)	(243,139)
Increase (Decrease) Due from Affiliates	0	0
Net Cash Provided by (Used in) Financing Activities	1,672,790	169,603
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	317,334		333,385
Assets, Current	330,378		341,695
Assets	5,431,143		3,234,353
Advances to Affiliate	0		0
Current liabilities	318,185		395,159
Due to Affiliate	2,582,282		1,366,697
OTHER LONG-TERM LIABILITIES	152,191		18,233
Liabilities	3,073,655		1,798,843
Liabilities and Equity	5,431,143		3,234,353
Net Cash Provided by (Used in) Operating Activities	201,305	216,907
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(1,861,115)	(365,966)
Increase (Decrease) Due from Affiliates	(1,215,585)	78,031
Net Cash Provided by (Used in) Financing Activities	1,664,544	157,291
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	12,428		12,474
Assets, Current	14,946		13,617
Assets	254,741		218,933
Advances to Affiliate	38,941		0
Current liabilities	7,749		499
Due to Affiliate	0		11,823
OTHER LONG-TERM LIABILITIES	152,802		110,663
Liabilities	160,551		122,985
Liabilities and Equity	254,741		218,933
Net Cash Provided by (Used in) Operating Activities	51,028	25,769
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	0	0
Increase (Decrease) Due from Affiliates	50,764	(22,266)
Net Cash Provided by (Used in) Financing Activities	(49,653)	(25,931)
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	(9)		(8)
Assets, Current	(9)		(8)
Assets	(5,190,899)		(3,064,170)
Advances to Affiliate	(2,582,282)		(1,378,520)
Current liabilities	(28,025)		(43,529)
Due to Affiliate	(2,582,282)		(1,378,520)
OTHER LONG-TERM LIABILITIES	(122,078)		(110,663)
Liabilities	(2,732,385)		(1,532,712)
Liabilities and Equity	(5,190,899)		(3,064,170)
Net Cash Provided by (Used in) Operating Activities	(6,727)	(108,082)
Increase (Decrease) in Due to Affiliates	1,164,821	55,765
Net Cash Provided by (Used in) Investing Activities	1,620,392	239,442
Increase (Decrease) Due from Affiliates	1,164,821	(55,765)
Net Cash Provided by (Used in) Financing Activities	$ (1,613,665)	(131,360)
As Previously Reported | Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			1,378,573
Assets, Current			1,378,582
Advances to Affiliate			0
Net Cash Provided by (Used in) Operating Activities		17,760
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		(187,374)
As Previously Reported | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Current liabilities			1,761,856
Due to Affiliate			0
Net Cash Provided by (Used in) Operating Activities		294,938
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		79,260
As Previously Reported | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			46,215
Assets, Current			47,358
Assets			252,674
Current liabilities			2,705
Due to Affiliate			0
OTHER LONG-TERM LIABILITIES			154,021
Liabilities			156,726
Liabilities and Equity			252,674
Net Cash Provided by (Used in) Operating Activities		3,503
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		(3,665)
As Previously Reported | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			(1,412,269)
Assets, Current			(1,412,269)
Assets			(3,097,911)
Advances to Affiliate			0
Current liabilities			(1,412,432)
Due to Affiliate			0
OTHER LONG-TERM LIABILITIES			(154,021)
Liabilities			(1,566,453)
Liabilities and Equity			(3,097,911)
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		183,677
Increase (Decrease) Due from Affiliates		0
Net Cash Provided by (Used in) Financing Activities		(75,595)
Adjustment | Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			(1,378,520)
Assets, Current			(1,378,520)
Advances to Affiliate			1,378,520
Net Cash Provided by (Used in) Operating Activities		55,765
Increase (Decrease) in Due to Affiliates		(55,765)
Net Cash Provided by (Used in) Investing Activities		(55,765)
Adjustment | Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Current liabilities			(1,366,697)
Due to Affiliate			1,366,697
Net Cash Provided by (Used in) Operating Activities		(78,031)
Increase (Decrease) Due from Affiliates		78,031
Net Cash Provided by (Used in) Financing Activities		78,031
Adjustment | Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			(33,741)
Assets, Current			(33,741)
Assets			(33,741)
Current liabilities			(2,206)
Due to Affiliate			11,823
OTHER LONG-TERM LIABILITIES			(43,358)
Liabilities			(33,741)
Liabilities and Equity			(33,741)
Net Cash Provided by (Used in) Operating Activities		22,266
Increase (Decrease) Due from Affiliates		(22,266)
Net Cash Provided by (Used in) Financing Activities		(22,266)
Adjustment | Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets			1,412,261
Assets, Current			1,412,261
Assets			33,741
Advances to Affiliate			(1,378,520)
Current liabilities			1,368,903
Due to Affiliate			(1,378,520)
OTHER LONG-TERM LIABILITIES			43,358
Liabilities			33,741
Liabilities and Equity			$ 33,741
Increase (Decrease) in Due to Affiliates		55,765
Net Cash Provided by (Used in) Investing Activities		55,765
Increase (Decrease) Due from Affiliates		(55,765)
Net Cash Provided by (Used in) Financing Activities		$ (55,765)