Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2011	Dec. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	$ 14,324	$ 10,817	$ 4,155	$ 5,762
Other current assets	427,807	365,287
Total current assets	442,131	376,104
Fixed Assets, at cost	617,611	541,138
Less: Accumulated depreciation	(131,928)	(124,213)
Net fixed assets	485,683	416,925
Goodwill	325,046	325,046
Other assets, net	280,666	285,822
Equity investees	536,749	326,947
TOTAL ASSETS	2,070,275	1,730,844
Current liabilities	294,885	249,428
Senior secured credit facility	438,200	409,300
Senior unsecured notes	350,981	250,000
Deferred tax liabilities	12,512	12,549
Other liabilities	23,108	16,929
Total liabilities	1,119,686	938,206
Partners' capital	950,589	792,638
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,070,275	1,730,844
Genesis Energy, L.P. (Parent And Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	3	3	4	1
Other current assets	721,386	597,966
Total current assets	721,389	597,969
Other assets, net	16,457	14,773
Investments in subsidiaries	1,010,240	841,725
TOTAL ASSETS	1,748,086	1,454,467
Current liabilities	8,316	2,529
Senior secured credit facility	438,200	409,300
Senior unsecured notes	350,981	250,000
Total liabilities	797,497	661,829
Partners' capital	950,589	792,638
TOTAL LIABILITIES AND PARTNERS' CAPITAL	1,748,086	1,454,467
Genesis Energy Finance Corporation (Co-Issuer) [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents
Other current assets
Total current assets
Fixed Assets, at cost
Less: Accumulated depreciation
Net fixed assets
Goodwill
Other assets, net
Equity investees
Investments in subsidiaries
TOTAL ASSETS
Current liabilities
Senior secured credit facility
Senior unsecured notes
Deferred tax liabilities
Other liabilities
Total liabilities
Partners' capital
TOTAL LIABILITIES AND PARTNERS' CAPITAL
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	13,885	9,182	3,767	5,082
Other current assets	403,154	341,131
Total current assets	417,039	350,313
Fixed Assets, at cost	520,490	444,262
Less: Accumulated depreciation	(121,469)	(114,655)
Net fixed assets	399,021	329,607
Goodwill	325,046	325,046
Other assets, net	269,766	276,450
Equity investees	536,749	326,947
Investments in subsidiaries	97,158	96,303
TOTAL ASSETS	2,044,779	1,704,666
Current liabilities	1,000,420	835,013
Deferred tax liabilities	12,512	12,549
Other liabilities	20,854	14,673
Total liabilities	1,033,786	862,235
Partners' capital	1,010,993	842,431
TOTAL LIABILITIES AND PARTNERS' CAPITAL	2,044,779	1,704,666
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Cash and cash equivalents	436	1,632	384	679
Other current assets	34,741	31,897
Total current assets	35,177	33,529
Fixed Assets, at cost	97,121	96,876
Less: Accumulated depreciation	(10,459)	(9,558)
Net fixed assets	86,662	87,318
Other assets, net	161,234	162,373
TOTAL ASSETS	283,073	283,220
Current liabilities	17,305	17,562
Other liabilities	168,860	169,842
Total liabilities	186,165	187,404
Partners' capital	96,908	95,816
TOTAL LIABILITIES AND PARTNERS' CAPITAL	283,073	283,220
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Other current assets	(731,474)	(605,707)
Total current assets	(731,474)	(605,707)
Other assets, net	(166,791)	(167,774)
Investments in subsidiaries	(1,107,398)	(938,028)
TOTAL ASSETS	(2,005,663)	(1,711,509)
Current liabilities	(731,156)	(605,676)
Other liabilities	(166,606)	(167,586)
Total liabilities	(897,762)	(773,262)
Partners' capital	(1,107,901)	(938,247)
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ (2,005,663)	$ (1,711,509)