Net Loss Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Earnings Per Share Reconciliation [Abstract]
Net loss attributable to Genesis Energy, L.P.	$ (1,644)	$ (5,250)
Less: Accumulated distributions attributable to Class A Convertible Preferred Units	(24,002)	(18,684)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-BASIC	(25,646)	(23,934)
NET LOSS ATTRIBUTABLE TO COMMON UNITHOLDERS-DILUTED	$ (25,646)	$ (23,934)
Basic (in units)	122,579,000	122,579,000
Dilutive Weighted Average Outstanding Units (in units)	122,579,000	122,579,000
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)
Class A Convertible Preferred Stock Units
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities not included in computation of dilutive earnings (in units)	25,336,778