Business Segment Information (Reconciliation Of Segment Margin To (Loss) Income from Continuing Operations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Margin	$ 144,881	$ 94,121
Corporate general and administrative expenses	(11,358)	(12,299)
Depreciation and amortization	(46,635)	(27,125)
Interest expense	(34,387)	(19,215)
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income (1)	(10,614)	(10,383)
Non-cash items not included in Segment Margin	4,072	2,614
Cash payments from direct financing leases in excess of earnings	(1,511)	(1,362)
Income tax expense	(1,001)	(908)
Net income attributable to Genesis Energy, L.P.	$ 35,303	$ 20,215