Business Segment Information (Reconciliation of Segment Margin to (Loss) Income from Continuing Operations) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Apr. 29, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income attributable to Genesis Energy, L.P.		$ 58,070	$ 3,385	$ 105,770	$ 33,482
Corporate general and administrative expenses		18,329	18,132	52,580	54,958
Depreciation, depletion, amortization and accretion		71,099	76,301	(218,788)	(225,526)
Interest expense		61,580	57,710	184,057	168,773
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income(1)		6,387	5,247	(18,535)	(15,981)
Unrealized losses (gains) on derivative transactions excluding fair value hedges, net of changes in inventory value(2)		(12,299)	26,295	17,721	16,083
Other non-cash items		(7,228)	(1,659)	16,886	3,926
Distribution from unrestricted subsidiaries not included in income(3)		0	0	0	(32,000)
Cancellation of debt income		0	(3,881)	0	(8,619)
Cancellation of debt income					(8,618)
Loss on extinguishment of debt		0	(293)	1,812	794
Differences in timing of cash receipts for certain contractual arrangements(5)		11,385	13,775	33,519	38,482
Change in provision for leased items no longer in use		0	68	0	(599)
Gain on sale of asset, net to our ownership interest(7)		0	0	0	(32,000)
Income tax expense		574	660	1,748	1,535
Total Segment Margin		207,897	196,190	617,644	572,914
Net income attributable to redeemable noncontrolling interests		0	0	0	30,443
Unrealized (losses) gains from valuation of embedded derivatives				(17,721)	(15,726)
Genesis NEJD Pipeline, LLC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Cash receipts not included in income associated with principal payments of previously owned pipeline			(32,000)
Alkali Holdings | Subsidiary
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Net income attributable to redeemable noncontrolling interests		$ 0	0	$ 0	30,443
Genesis Energy, LLC | Affiliated Entity | Independence Hub, LLC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		80.00%		80.00%
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Independence Hub, LLC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Proceeds from Sale of Productive Assets	$ 40,000
Embedded Derivative Financial Instruments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Amount of Gain (Loss) Recognized in Income		$ 12,300		$ 17,700	(2,500)
Unrealized (losses) gains from valuation of embedded derivatives					$ 18,600
Embedded Derivative Financial Instruments | Other Nonoperating Income (Expense)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Amount of Gain (Loss) Recognized in Income			1,300
Embedded Derivative Financial Instruments | Other Expense [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Amount of Gain (Loss) Recognized in Income			$ 25,000