Cover - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	May 07, 2025	Dec. 31, 2024	Dec. 31, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2025
Document Transition Report	false
Entity File Number	1-12295
Entity Registrant Name	GENESIS ENERGY LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	76-0513049
Entity Address, Address Line One	811 Louisiana, Suite 1200,
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	(713)
Local Phone Number	860-2500
Title of 12(b) Security	Common units
Trading Symbol	GEL
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001022321
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	Q1
Amendment Flag	false
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	$ 187,609	$ 874,853		$ 702,194	$ 897,188
Net income (loss)	(460,306)	18,956
Cash distributions to partners	(20,207)	(18,370)
Cash distributions to noncontrolling interests	(11,151)	(10,107)
Cash contributions from noncontrolling interests	7,767	9,000
Contribution due from noncontrolling interests	7,200
Decrease in benefit plan liability held for discontinued operations	69	80
Distributions and returns attributable to Class A Convertible Preferred unitholders	(28,402)	(21,894)
Limited Partner [Member]
Entity Information [Line Items]
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	(237,793)	490,787		$ 279,891	$ 519,698
Net income (loss)	(469,075)	11,353
Cash distributions to partners	(20,207)	(18,370)
Contribution due from noncontrolling interests	0
Distributions and returns attributable to Class A Convertible Preferred unitholders	$ (28,402)	$ (21,894)
Limited Partner [Member] | Common Units
Entity Information [Line Items]
Partners' Capital Account, Units	122,464,000	122,464,000		122,464,000	122,464,000
Noncontrolling Interests
Entity Information [Line Items]
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	$ 425,402	$ 375,946		$ 412,817	$ 369,450
Net income (loss)	8,769	7,603
Cash distributions to noncontrolling interests	(11,151)	(10,107)
Cash contributions from noncontrolling interests	7,767	9,000
Contribution due from noncontrolling interests	7,200
Accumulated Other Comprehensive Income
Entity Information [Line Items]
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	0	8,120		$ 9,486	$ 8,040
Decrease in benefit plan liability held for discontinued operations	$ 69	$ 80
Class A Common Units
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			122,424,321
Class B Common Units
Entity Information [Line Items]
Entity Common Stock, Shares Outstanding			39,997