Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 14,326	$ 8,866	$ 18,668	$ 11,282
Other current assets	505,445	526,357
Total current assets	519,771	535,223
Fixed Assets, at cost	1,552,110	1,327,974
Less: Accumulated depreciation	(227,838)	(199,230)
Net fixed assets	1,324,272	1,128,744
Goodwill	325,046	325,046
Other assets, net	253,852	252,942
Equity investees	620,188	620,247
Investments in subsidiaries	0	0
TOTAL ASSETS	3,043,129	2,862,202
Current liabilities	412,280	446,553
Senior secured credit facility	492,200	582,800
SENIOR UNSECURED NOTES	1,050,707	700,772
Deferred tax liabilities	16,797	15,944
Other liabilities	18,721	18,396
Total liabilities	1,990,705	1,764,465
Partners' capital	1,052,424	1,097,737
TOTAL LIABILITIES AND PARTNERS' CAPITAL	3,043,129	2,862,202
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	10	20	4	10
Other current assets	1,369,932	1,133,695
Total current assets	1,369,942	1,133,715
Fixed Assets, at cost	0	0
Less: Accumulated depreciation	0	0
Net fixed assets	0	0
Goodwill	0	0
Other assets, net	19,047	21,432
Equity investees	0	0
Investments in subsidiaries	1,217,721	1,236,164
TOTAL ASSETS	2,606,710	2,391,311
Current liabilities	11,379	10,002
Senior secured credit facility	492,200	582,800
SENIOR UNSECURED NOTES	1,050,707	700,772
Deferred tax liabilities	0	0
Other liabilities	0	0
Total liabilities	1,554,286	1,293,574
Partners' capital	1,052,424	1,097,737
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,606,710	2,391,311
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	0	0
Other current assets	0	0
Total current assets	0	0
Fixed Assets, at cost	0	0
Less: Accumulated depreciation	0	0
Net fixed assets	0	0
Goodwill	0	0
Other assets, net	0	0
Equity investees	0	0
Investments in subsidiaries	0	0
TOTAL ASSETS	0	0
Current liabilities	0	0
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	0	0
Other liabilities	0	0
Total liabilities	0	0
Partners' capital	0	0
TOTAL LIABILITIES AND PARTNERS' CAPITAL	0	0
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	13,295	8,061	18,233	11,214
Other current assets	476,342	498,230
Total current assets	489,637	506,291
Fixed Assets, at cost	1,434,885	1,211,356
Less: Accumulated depreciation	(207,927)	(181,905)
Net fixed assets	1,226,958	1,029,451
Goodwill	325,046	325,046
Other assets, net	241,932	238,282
Equity investees	620,188	620,247
Investments in subsidiaries	127,397	124,718
TOTAL ASSETS	3,031,158	2,844,035
Current liabilities	1,780,446	1,576,186
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	16,797	15,944
Other liabilities	15,028	14,664
Total liabilities	1,812,271	1,606,794
Partners' capital	1,218,887	1,237,241
TOTAL LIABILITIES AND PARTNERS' CAPITAL	3,031,158	2,844,035
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	1,021	785	431	58
Other current assets	58,779	54,199
Total current assets	59,800	54,984
Fixed Assets, at cost	117,225	116,618
Less: Accumulated depreciation	(19,911)	(17,325)
Net fixed assets	97,314	99,293
Goodwill	0	0
Other assets, net	149,624	152,413
Equity investees	0	0
Investments in subsidiaries	0	0
TOTAL ASSETS	306,738	306,690
Current liabilities	20,217	19,660
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	0	0
Other liabilities	160,271	162,739
Total liabilities	180,488	182,399
Partners' capital	126,250	124,291
TOTAL LIABILITIES AND PARTNERS' CAPITAL	306,738	306,690
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	0	0
Other current assets	(1,399,608)	(1,159,767)
Total current assets	(1,399,608)	(1,159,767)
Fixed Assets, at cost	0	0
Less: Accumulated depreciation	0	0
Net fixed assets	0	0
Goodwill	0	0
Other assets, net	(156,751)	(159,185)
Equity investees	0	0
Investments in subsidiaries	(1,345,118)	(1,360,882)
TOTAL ASSETS	(2,901,477)	(2,679,834)
Current liabilities	(1,399,762)	(1,159,295)
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	0	0
Other liabilities	(156,578)	(159,007)
Total liabilities	(1,556,340)	(1,318,302)
Partners' capital	(1,345,137)	(1,361,532)
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ (2,901,477)	$ (2,679,834)