Business Segment Information (Reconciliation of Segment Margin to (Loss) Income from Continuing Operations) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Apr. 29, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unrealized (losses) gains from valuation of embedded derivatives				$ (30,021)	$ 10,284
Net income attributable to Genesis Energy, L.P.		$ 49,344	$ 35,347	47,700	30,097
Other General and Administrative Expense		18,487	21,105	34,251	36,826
Depreciation, Depletion, Amortization And Accretion		71,754	76,277	(147,689)	(149,225)
Interest expense		61,623	55,959	122,477	111,063
Distributable cash from equity investees in excess of equity in earnings		5,867	4,160	(12,148)	(10,734)
Unrealized losses (gains) on derivative transactions excluding fair value hedges, net of changes in inventory value		2,888	(8,319)	30,020	(10,212)
Non-Cash Expenses (Revenues) Not Included In Segment Margin		(7,197)	(589)	9,658	2,267
Cash receipts from unrestricted subsidiaries not included in income		0	32,000	0	(32,000)
Cancellation of debt income		0	(4,737)	0	(4,737)
Loss on extinguishment of debt		(3)	(501)	1,812	501
Differences in timing of cash receipts for certain contractual arrangements		11,559	16,477	22,134	24,707
Change in provision for leased items no longer in use		0	100	0	(531)
Gain (Loss) on Disposition of Assets		0	(32,000)	0	(32,000)
Income tax expense		290	571	1,174	875
Total Segment Margin		214,618	219,272	409,747	376,724
Net income attributable to redeemable noncontrolling interests		0	22,620	0	30,443
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	22,620	$ 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		$ (2,900)		$ (30,000)	3,800
Unrealized (losses) gains from valuation of embedded derivatives			10,651		$ 6,393
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			2,300
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			$ 10,700