Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 11,676	$ 8,866	$ 15,983	$ 11,282
Other current assets	442,660	526,357
Total current assets	454,336	535,223
Fixed Assets, at cost	1,415,443	1,327,974
Less: Accumulated depreciation	(211,689)	(199,230)
Net fixed assets	1,203,754	1,128,744
Goodwill	325,046	325,046
Other assets, net	248,222	252,942
Equity investees	626,195	620,247
Investments in subsidiaries	0	0
TOTAL ASSETS	2,857,553	2,862,202
Current liabilities	401,433	446,553
Senior secured credit facility	640,500	582,800
SENIOR UNSECURED NOTES	700,740	700,772
Deferred tax liabilities	16,285	15,944
Other liabilities	18,536	18,396
Total liabilities	1,777,494	1,764,465
Partners' capital	1,080,059	1,097,737
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,857,553	2,862,202
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	19	20	5	10
Other current assets	1,181,454	1,133,695
Total current assets	1,181,473	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	20,295	21,432
Equity investees	0	0
Investments in subsidiaries	1,231,287	1,236,164
TOTAL ASSETS	2,433,055	2,391,311
Current liabilities	11,756	10,002
Senior secured credit facility	640,500	582,800
SENIOR UNSECURED NOTES	700,740	700,772
Deferred tax liabilities	0	0
Other liabilities	0	0
Total liabilities	1,352,996	1,293,574
Partners' capital	1,080,059	1,097,737
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,433,055	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	10,874	8,061	15,836	11,214
Other current assets	415,347	498,230
Total current assets	426,221	506,291
Fixed Assets, at cost	1,298,704	1,211,356
Less: Accumulated depreciation	(193,084)	(181,905)
Net fixed assets	1,105,620	1,029,451
Goodwill	325,046	325,046
Other assets, net	234,875	238,282
Equity investees	626,195	620,247
Investments in subsidiaries	126,331	124,718
TOTAL ASSETS	2,844,288	2,844,035
Current liabilities	1,580,761	1,576,186
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	16,285	15,944
Other liabilities	14,833	14,664
Total liabilities	1,611,879	1,606,794
Partners' capital	1,232,409	1,237,241
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,844,288	2,844,035
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	783	785	142	58
Other current assets	54,713	54,199
Total current assets	55,496	54,984
Fixed Assets, at cost	116,739	116,618
Less: Accumulated depreciation	(18,605)	(17,325)
Net fixed assets	98,134	99,293
Goodwill	0	0
Other assets, net	151,035	152,413
Equity investees	0	0
Investments in subsidiaries	0	0
TOTAL ASSETS	304,665	306,690
Current liabilities	17,926	19,660
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	0	0
Other liabilities	161,510	162,739
Total liabilities	179,436	182,399
Partners' capital	125,229	124,291
TOTAL LIABILITIES AND PARTNERS' CAPITAL	304,665	306,690
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	0	0	0	0
Other current assets	(1,208,854)	(1,159,767)
Total current assets	(1,208,854)	(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	(157,983)	(159,185)
Equity investees	0	0
Investments in subsidiaries	(1,357,618)	(1,360,882)
TOTAL ASSETS	(2,724,455)	(2,679,834)
Current liabilities	(1,209,010)	(1,159,295)
Senior secured credit facility	0	0
SENIOR UNSECURED NOTES	0	0
Deferred tax liabilities	0	0
Other liabilities	(157,807)	(159,007)
Total liabilities	(1,366,817)	(1,318,302)
Partners' capital	(1,357,638)	(1,361,532)
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ (2,724,455)	$ (2,679,834)