Business Consolidations - Schedule of Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pro forma consolidated financial operating results:
Revenues	$ 804,662	$ 824,037	$ 1,595,274	$ 1,583,126
Net Income Attributable to Genesis Energy, L.P.	49,344	39,596	47,700	35,368
Net Loss Attributable to Common Unitholders, Basic (in dollars per unit)	26,434	20,912	788	(2,000)
Net Loss Attributable to Common Unitholders, Diluted (in dollars per unit)	$ 26,434	$ 20,912	$ 788	$ (2,000)
Basic and diluted earnings (loss) per common unit:
Basic Net Loss per Common Unit (in dollars per unit)	$ 0.22	$ 0.14	$ 0.01	$ (0.06)
Dilutive Net Loss per common unit (in dollars per unit)	0.22	0.14	0.01	(0.06)
Pro Forma net loss per common unit, basic (in dollars per unit)	0.22	0.17	0.01	(0.02)
Pro forma net loss per common unit, diluted (in dollars per unit)	$ 0.22	$ 0.17	$ 0.01	$ (0.02)