Business Segment Information (Reconciliation Of Segment Margin To (Loss) Income from Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting [Abstract]
Total Segment Margin	$ 142,486	$ 98,567	$ 287,367	$ 192,688
Corporate general and administrative expenses	(10,491)	(13,953)	(21,849)	(26,252)
Depreciation and amortization	(55,900)	(28,205)	(102,535)	(55,330)
Interest expense	(35,535)	(17,905)	(69,922)	(37,120)
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income (1)	(11,141)	(7,038)	(21,755)	(17,421)
Non-cash items not included in Segment Margin	3,135	(1,771)	7,207	843
Cash payments from direct financing leases in excess of earnings	(1,548)	(1,405)	(3,059)	(2,767)
Loss on extinguishment of debt	0	(19,225)	0	(19,225)
Income tax expense	(1,009)	(942)	(2,010)	(1,850)
Net income attributable to Genesis Energy, L.P.	$ 23,727	$ 11,665	$ 59,030	$ 31,880