Condensed Consolidated Statement Of Changes In Partners' Capital (USD $) In Thousands	Total	Noncontrolling Interest	Limited Partners Class B	Limited Partners Class C	Limited Partner	General Partner
Beginning Balance at Dec. 31, 2013	$ 4,352,790	$ 253,884	$ 318,472	$ 322,896	$ 3,343,145	$ 114,393
Net income	137,997	9,465	5,274	1,175	78,941	43,142
Distribution to unitholders	(252,145)			(6,215)	(207,772)	(38,158)
Conversion of Class C units to common units				(321,151)	321,151
Contributions from noncontrolling interest owners	95,441	95,441
Non-cash equity based compensation	2,020				2,020
Issuance of general partner interests	1,535					1,535
Issuance of common units	52,155				52,155
Beneficial conversion feature of Class B units			(822)		822
Amortization of beneficial conversion feature of Class B and Class C units			14,388	3,295	(17,683)
Ending Balance at Jun. 30, 2014	$ 4,389,793	$ 358,790	$ 337,312		$ 3,572,779	$ 120,912