Condensed Consolidating Financial Information (Restatements) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Other current assets	$ 363,976		$ 295,421
Assets, Current	372,526		306,316
Assets	5,665,811		5,459,599
Advances to Affiliate	0		0
Current liabilities	267,614		302,136
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	224,820		192,072
Liabilities	3,732,330		3,438,848
Liabilities and Equity	5,665,811		5,459,599
Net Cash Provided by (Used in) Operating Activities	103,672	$ 71,102
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(249,864)	(229,407)
Intercompany transfers	0	0
Net Cash Provided by (Used in) Financing Activities	143,847	157,562
Reportable Legal Entities | Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Other current assets	100		50
Assets, Current	106		56
Assets	5,192,539		4,986,493
Advances to Affiliate	2,843,031		2,619,493
Current liabilities	34,555		35,338
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	0		0
Liabilities	3,250,456		2,957,392
Liabilities and Equity	5,192,539		4,986,493
Net Cash Provided by (Used in) Operating Activities	80,297	(2,724)
Increase (Decrease) in Due to Affiliates	(223,537)	(28,132)
Net Cash Provided by (Used in) Investing Activities	(223,537)	(154,067)
Intercompany transfers	0	0
Net Cash Provided by (Used in) Financing Activities	143,240	156,788
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Other current assets	353,548		285,313
Assets, Current	360,481		293,601
Assets	5,672,821		5,454,185
Advances to Affiliate	0		0
Current liabilities	233,286		267,294
Due to Affiliate	2,903,302		2,666,527
OTHER LONG-TERM LIABILITIES	182,661		150,877
Liabilities	3,343,244		3,107,284
Liabilities and Equity	5,672,821		5,454,185
Net Cash Provided by (Used in) Operating Activities	154,169	102,165
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	(246,885)	(226,715)
Intercompany transfers	236,775	43,059
Net Cash Provided by (Used in) Financing Activities	91,361	124,239
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Other current assets	10,868		10,422
Assets, Current	12,479		13,023
Assets	264,397		256,334
Advances to Affiliate	60,272		47,034
Current liabilities	0		0
Due to Affiliate	0		0
OTHER LONG-TERM LIABILITIES	175,332		167,006
Liabilities	175,332		167,006
Liabilities and Equity	264,397		256,334
Net Cash Provided by (Used in) Operating Activities	4,918	17,167
Increase (Decrease) in Due to Affiliates	0	0
Net Cash Provided by (Used in) Investing Activities	0	0
Intercompany transfers	(13,238)	(14,927)
Net Cash Provided by (Used in) Financing Activities	(5,908)	(17,596)
Reportable Legal Entities | As Previously Reported | Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(30,856)
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		(125,935)
Reportable Legal Entities | As Previously Reported | Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		145,231
Intercompany transfers		0
Net Cash Provided by (Used in) Financing Activities		81,180
Reportable Legal Entities | As Previously Reported | Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		2,233
Intercompany transfers		0
Net Cash Provided by (Used in) Financing Activities		(2,669)
Reportable Legal Entities | Adjustment | Genesis Energy, L.P. (Parent and Co-Issuer)
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		28,132
Increase (Decrease) in Due to Affiliates		(28,132)
Net Cash Provided by (Used in) Investing Activities		(28,132)
Reportable Legal Entities | Adjustment | Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		(43,066)
Intercompany transfers		43,059
Net Cash Provided by (Used in) Financing Activities		43,059
Reportable Legal Entities | Adjustment | Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided by (Used in) Operating Activities		14,934
Intercompany transfers		(14,927)
Net Cash Provided by (Used in) Financing Activities		(14,927)
Eliminations
Condensed Financial Statements, Captions [Line Items]
Other current assets	(540)		(364)
Assets, Current	(540)		(364)
Assets	(5,463,946)		(5,237,413)
Advances to Affiliate	(2,903,303)		(2,666,527)
Current liabilities	(227)		(496)
Due to Affiliate	(2,903,302)		(2,666,527)
OTHER LONG-TERM LIABILITIES	(133,173)		(125,811)
Liabilities	(3,036,702)		(2,792,834)
Liabilities and Equity	(5,463,946)		$ (5,237,413)
Net Cash Provided by (Used in) Operating Activities	(135,712)	(45,506)
Increase (Decrease) in Due to Affiliates	223,537	28,132
Net Cash Provided by (Used in) Investing Activities	220,558	151,375
Intercompany transfers	(223,537)	(28,132)
Net Cash Provided by (Used in) Financing Activities	$ (84,846)	(105,869)
Eliminations | As Previously Reported
Condensed Financial Statements, Captions [Line Items]
Increase (Decrease) in Due to Affiliates		0
Net Cash Provided by (Used in) Investing Activities		123,243
Intercompany transfers		0
Net Cash Provided by (Used in) Financing Activities		(77,737)
Eliminations | Adjustment
Condensed Financial Statements, Captions [Line Items]
Increase (Decrease) in Due to Affiliates		28,132
Net Cash Provided by (Used in) Investing Activities		28,132
Intercompany transfers		(28,132)
Net Cash Provided by (Used in) Financing Activities		$ (28,132)