Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Transportation and terminals revenue		$ 392,240	$ 384,901	$ 762,315	$ 738,713
Product sales revenue	[1]	123,689	109,969	270,251	283,096
Affiliate management fee revenue		2,968	3,558	6,147	6,921
Total revenue		518,897	498,428	1,038,713	1,028,730
Costs and expenses:
Operating		134,162	142,318	257,395	249,025
Cost of product sales	[1]	95,703	94,507	209,288	230,686
Depreciation and amortization		43,302	40,440	87,056	82,137
General and administrative		34,542	37,942	75,416	73,440
Total costs and expenses		307,709	315,207	629,155	635,288
Earnings of non-controlled entities		15,339	24,542	32,967	34,132
Operating profit		226,527	207,763	442,525	427,574
Interest expense		48,686	40,396	92,410	77,590
Interest income		(404)	(334)	(765)	(683)
Interest capitalized		(7,130)	(2,946)	(13,266)	(5,053)
Gain on exchange of interest in non-controlled entity		(1,244)	0	(28,144)	0
Other income		(1,925)	(6,539)	(4,195)	(6,260)
Income before provision for income taxes		188,544	177,186	396,485	361,980
Provision for income taxes		685	(205)	1,556	953
Net income		$ 187,859	$ 177,391	$ 394,929	$ 361,027
Basic net income per limited partner unit		$ 0.82	$ 0.78	$ 1.73	$ 1.59
Diluted net income per limited partner unit		$ 0.82	$ 0.78	$ 1.73	$ 1.59
Weighted average number of limited partner units outstanding used for basic net income per unit calculation(1)	[2]	227,952	227,631	227,889	227,578
Weighted average number of limited partner units outstanding used for diluted net income per unit calculation(1)	[2]	227,983	227,631	227,921	227,578

[1] Includes gains (losses) on related NYMEX contracts. See Note 8–Derivative Financial Instruments.

[2] See Note 10–Long-Term Incentive Plan for additional information regarding our weighted average unit calculations.