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, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting [Abstract]
Net income (loss) attributable to Genesis Energy, L.P.		$ 35,347	$ (41,682)	$ 30,097	$ (75,906)
Corporate general and administrative expenses		21,105	12,359	36,826	23,511
Depreciation, depletion, amortization and accretion		(76,277)	(69,684)	149,225	138,681
Interest expense		55,959	59,169	111,063	116,998
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income		(4,160)	(7,692)	10,734	16,548
Other non-cash items		8,908	(14,683)	(12,479)	33,127
Distribution from unrestricted subsidiaries not included in income		32,000	17,500	(32,000)	(35,000)
Loss on extinguishment of debt		(501)	0	501	1,627
Differences in timing of cash receipts for certain contractual arrangements		16,477	6,446	24,707	6,745
Change in provision for leased items no longer in use		100	6	(531)	598
Redeemable noncontrolling interest redemption value adjustments		22,620	5,766	30,443	10,557
Income tax expense		571	525	875	747
Total Segment Margin		219,272	152,136	376,724	308,233
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unrealized (losses) gains from valuation of embedded derivatives				10,284	(32,377)
Gain (Loss) on Disposition of Assets		(32,000)	0	(32,000)	0
Net income (loss) attributable to Genesis Energy, L.P.		35,347	(41,682)	30,097	(75,906)
Total Segment Margin		$ 219,272	152,136	$ 376,724	308,233
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
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)	$ 17,500	$ (32,000)	35,000
Embedded Derivative Financial Instruments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Unrealized (losses) gains from valuation of embedded derivatives		(10,700)		(6,400)	$ (32,800)
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		$ (3,800)