Condensed Consolidated Statements Of Partners' Capital - USD ($) $ in Thousands	Total	Partners’ Capital	Noncontrolling Interest	Common Units Partners’ Capital
Partners' capital, beginning balance (units) at Dec. 31, 2014				95,029,000
Partners' capital, beginning balance at Dec. 31, 2014	$ 1,229,203	$ 1,229,203	$ 0
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	31,880	31,880	0
Cash distributions to partners	(117,316)	(117,316)	0
Partners' capital, ending balance (units) at Jun. 30, 2015				99,629,000
Partners' capital, ending balance at Jun. 30, 2015	$ 1,341,489	1,341,489	0
Partners' capital, beginning balance (units) at Dec. 31, 2015	109,979,218			109,979,000
Partners' capital, beginning balance at Dec. 31, 2015	$ 2,020,751	2,029,101	(8,350)
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income	58,778	59,030	(252)
Cash distributions to partners	$ (146,048)	(146,048)	0
Partners' capital, ending balance (units) at Jun. 30, 2016	109,979,218			109,979,000
Partners' capital, ending balance at Jun. 30, 2016	$ 1,933,481	$ 1,942,083	$ (8,602)