Net Loss Per Common Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net Income per Common Unit [Abstract]
Net income (loss) attributable to Genesis Energy, L.P.	$ 11,353	$ (1,644)
Less: Accumulated distributions attributable to Class A Convertible Preferred Units	(21,894)	(24,002)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-BASIC	(10,541)	(25,646)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-DILUTED	$ (10,541)	$ (25,646)
Dilutive Weighted Average Outstanding Units (in units)	122,464	122,579
Basic Net Loss per Common Unit (in dollars per unit)	$ (0.09)	$ (0.21)
Dilutive Net Loss per common unit (in dollars per unit)	$ (0.09)	$ (0.21)