Net Loss Per Common Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Income per Common Unit [Abstract]
Net income (loss) attributable to Genesis Energy, L.P.	$ (8,744)	$ 49,344	$ 2,609	$ 47,700
Less: Accumulated distributions and returns attributable to Class A Convertible Preferred Units	(21,894)	(22,910)	(43,788)	(46,912)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-BASIC	(30,638)	26,434	(41,179)	788
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-DILUTED	$ (30,638)	$ 26,434	$ (41,179)	$ 788
Dilutive Weighted Average Outstanding Units (in units)	122,464	122,579	122,464	122,579
Basic Net Loss per Common Unit (in dollars per unit)	$ (0.25)	$ 0.22	$ (0.34)	$ 0.01
Dilutive Net Loss per common unit (in dollars per unit)	$ (0.25)	$ 0.22	$ (0.34)	$ 0.01