Consolidated Statement Of Equity (USD $) In Thousands	Total	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]	General Partner [Member]	Limited Partner Common Unitholders [Member]
Balance at Dec. 31, 2011	$ 6,350,424	$ 6,569	$ 628,717	$ 181,646	$ 5,533,492
Distributions to partners	(318,597)	0	0	(116,540)	(202,057)
Distributions to noncontrolling interest	(6,956)	0	(6,956)	0	0
Units issued for cash	87,327	0	0	0	87,327
Capital contributions from noncontrolling interest	79,839	0	79,839	0	0
Units issued in connection with Citrus Merger	105,000	0	0	0	105,000
Distributions on unvested unit awards	(2,023)	0	0	0	(2,023)
Non-cash unit-based compensation expense, net of units tendered by employees for tax withholdings	10,805	0	0	6	10,799
Other comprehensive loss, net of tax	16,792	16,792	0	0	0
Other, net	(975)	0	0		(975)
Net income	1,126,097	0	11,364	116,537	998,196
Balance at Mar. 31, 2012	$ 7,447,733	$ 23,361	$ 712,964	$ 181,649	$ 6,529,759