CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue:
Revenue	$ 1,395,231	$ 1,534,434	$ 1,241,563
Derivative gain (loss)	56,535	(29,035)	(53,932)
Total revenue	1,451,766	1,505,399	1,187,631
Operating expenses:
Purchased product costs	530,328	682,370	578,627
Derivative (gain) loss related to purchased product costs	(13,962)	52,960	27,713
Facility expenses	208,385	173,598	151,449
Derivative loss (gain) related to facility expenses	1,371	(6,480)	(1,295)
Selling, general and administrative expenses	94,116	81,229	75,258
Depreciation	189,549	149,954	123,198
Amortization of intangible assets	53,320	43,617	40,833
Loss on disposal of property, plant and equipment	6,254	8,797	3,149
Accretion of asset retirement obligations	677	1,190	237
Total operating expenses	1,070,038	1,187,235	999,169
Income from operations	381,728	318,164	188,462
Other income (expense):
Earnings (loss) from unconsolidated affiliates	699	(1,095)	1,562
Interest income	419	422	1,670
Interest expense	(120,191)	(113,631)	(103,873)
Amortization of deferred financing costs and discount (a component of interest expense)	(5,601)	(5,114)	(10,264)
Derivative gain related to interest expense			1,871
Loss on redemption of debt		(78,996)	(46,326)
Miscellaneous income, net	62	144	1,189
Income before provision for income tax	257,116	119,894	34,291
Provision for income tax (benefit) expense:
Current	(2,366)	17,578	7,655
Deferred	40,694	(3,929)	(4,466)
Total provision for income tax	38,328	13,649	3,189
Net income	218,788	106,245	31,102
Net loss (income) attributable to non-controlling interest	1,614	(45,550)	(30,635)
Net income attributable to the Partnership's unitholders	$ 220,402	$ 60,695	$ 467
Net income (loss) attributable to the Partnership's common unitholders per common unit (Note 22):
Basic (in dollars per unit)	$ 1.98	$ 0.75	$ (0.01)
Diluted (in dollars per unit)	$ 1.69	$ 0.75	$ (0.01)
Weighted average number of outstanding common units:
Basic (in units)	109,979	78,466	70,128
Diluted (in units)	130,648	78,619	70,128
Cash distribution declared per common unit (in dollars per unit)	$ 3.16	$ 2.75	$ 2.56