Business Segment Information (Reconciliation of Segment Margin to Net Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting [Abstract]
Net income (loss) attributable to Genesis Energy L.P.	$ (165,067)	$ (416,678)	$ 95,999
Corporate general and administrative expenses	61,287	51,457	52,755
Depreciation, depletion, amortization and accretion	315,896	302,602	308,115
Interest expense	233,724	209,779	219,440
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income	26,207	17,042	20,847	[1]
Non-cash items not included in Segment Margin	30,907	5,847	14,642
Distributions from unrestricted subsidiaries not included in income	70,000	70,490	8,421
Cancellation of debt income	0	(27,302)	0
Loss on debt extinguishment	1,627	31,730	0
Differences in timing of cash receipts for certain contractual arrangements	15,482	40,848	(8,478)	[2]
Loss on sale of assets	0	22,045	0
Non-cash provision for leased items no longer in use	598	1,347	(1,367)
Income tax expense	1,670	1,327	655
Redeemable noncontrolling interest redemption value adjustment	25,398	16,113	2,233
Impairment expense	0	280,826	0
Total Segment Margin	617,729	607,473	713,262
Segment Reporting Information [Line Items]
Distributions from unrestricted subsidiaries not included in income	70,000	70,490	8,421
Genesis NEJD Pipeline, LLC
Segment Reporting [Abstract]
Distributions from unrestricted subsidiaries not included in income	70,000
Segment Reporting Information [Line Items]
Distributions from unrestricted subsidiaries not included in income	70,000
Embedded Derivative Financial Instruments | Other expense, net
Segment Reporting Information [Line Items]
Derivatives, amount of gain (loss) recognized in income	(30,838)	$ (857)	(9,026)
Disposal Group, Disposed of by Sale, Not Discontinued Operations | NEJD Pipeline
Segment Reporting [Abstract]
Distributions from unrestricted subsidiaries not included in income	48,000		8,400
Segment Reporting Information [Line Items]
Distributions from unrestricted subsidiaries not included in income	48,000		$ 8,400
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Free State Pipeline
Segment Reporting [Abstract]
Distributions from unrestricted subsidiaries not included in income	22,500
Segment Reporting Information [Line Items]
Distributions from unrestricted subsidiaries not included in income	$ 22,500

[1] Includes distributions attributable to the period and received during or promptly following such period. (2)Includes an unrealized loss of $30.8 million, $0.9 million and $9.0 million from the valuation of the embedded derivative associated with our Class A Convertible Preferred Units in 2021, 2020 and 2019, respectively. (3)2021 includes $70.0 million in cash receipts associated with principal repayments on our previously owned NEJD pipeline not included in income. 2020 includes cash payments received from our NEJD pipeline of $48.0 million not included in income and distributions from our Free State pipeline of $22.5 million not included in income, both of which are defined as unrestricted subsidiaries under our senior secured credit agreement. 2019 includes cash payments received from our NEJD pipeline of $8.4 million not included in income.

[2] Includes the difference in timing of cash receipts from customers during the period and the revenue we recognize in accordance with GAAP on our related contracts.