Business Consolidations - Schedule of Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Pro forma consolidated financial operating results:
Revenues	$ 790,612	$ 759,089
Net Loss Attributable to Genesis Energy, L.P.	(1,644)	(4,228)
Net Loss Attributable to Common Unitholders, Basic (in dollars per unit)	(25,646)	(22,912)
Net Loss Attributable to Common Unitholders, Diluted (in dollars per unit)	$ (25,646)	$ (22,912)
Basic and diluted earnings (loss) per common unit:
Basic Net Loss per Common Unit (in dollars per unit)	$ (0.21)	$ (0.20)
Dilutive Net Loss per common unit (in dollars per unit)	(0.21)	(0.20)
Pro Forma net loss per common unit, basic (in dollars per unit)	(0.21)	(0.19)
Pro forma net loss per common unit, diluted (in dollars per unit)	$ (0.21)	$ (0.19)