Net Loss Per Common Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Income per Common Unit [Abstract]
Net income attributable to Genesis Energy, L.P.	$ 49,344	$ 35,347	$ 47,700	$ 30,097
Less: Accumulated distributions and returns attributable to Class A Convertible Preferred Units	(22,910)	(18,684)	(46,912)	(37,368)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-BASIC	26,434	16,663	788	(7,271)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-DILUTED	$ 26,434	$ 16,663	$ 788	$ (7,271)
Dilutive Weighted Average Outstanding Units (in units)	122,579	122,579	122,579	122,579
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)