Supplemental Condensed Consolidating Financial Information (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Condensed Consolidating Statements of Operations
Total revenue	$ 333,913	$ 507,826	$ 400,439	$ 263,221	$ 299,991	$ 255,411	$ 323,850	$ 308,379	$ 1,505,399	$ 1,187,631	$ 738,283
Operating expenses:
Purchased product costs									735,330	606,340	477,709
Facility expenses									167,118	150,154	126,604
Selling, general and administrative expenses									81,229	75,258	63,728
Depreciation and amortization									193,571	164,031	136,368
Other operating expenses									9,987	3,386	1,875
Impairment of long-lived assets											5,855
Total operating expenses									1,187,235	999,169	812,139
Income (loss) from operations	(7,557)	207,801	133,214	(15,294)	25,172	646	109,071	53,573	318,164	188,462	(73,856)
Loss on redemption of debt	(35,500)			(43,300)	(46,300)				(78,996)	(46,326)
Gain on sale of unconsolidated affiliate											6,801
Other (expense) income, net									(119,274)	(107,845)	(88,315)
Income before provision for income tax									119,894	34,291	(155,370)
Provision for income tax expense									13,649	3,189	(42,016)
Net income (loss)	(61,743)	153,454	89,205	(74,671)	(43,194)	(18,676)	66,968	26,004	106,245	31,102	(113,354)
Net income attributable to non-controlling interest									(45,550)	(30,635)	(5,314)
Net income (loss) attributable to the Partnership	(74,085)	140,312	78,497	(84,029)	(54,109)	(27,151)	60,217	21,510	60,695	467	(118,668)
Parent
Operating expenses:
Selling, general and administrative expenses									46,903	46,549	46,317
Depreciation and amortization									719	594	559
Other operating expenses									673	753	(161)
Total operating expenses									48,295	47,896	46,715
Income (loss) from operations									(48,295)	(47,896)	(46,715)
Earnings from consolidated affiliates									288,870	183,557	2,243
Loss on redemption of debt									(78,996)	(46,326)
Other (expense) income, net									(91,612)	(82,000)	(69,951)
Income before provision for income tax									69,967	7,335	(114,423)
Provision for income tax expense									2,742	1,299	(1,439)
Net income (loss)									67,225	6,036	(112,984)
Net income (loss) attributable to the Partnership									67,225	6,036	(112,984)
Guarantor Subsidiaries
Condensed Consolidating Statements of Operations
Total revenue									1,240,004	1,063,621	686,340
Operating expenses:
Purchased product costs									651,132	589,403	465,152
Facility expenses									128,612	122,240	110,147
Selling, general and administrative expenses									31,015	27,339	17,990
Depreciation and amortization									151,362	136,781	124,976
Other operating expenses									9,030	2,342	2,019
Total operating expenses									971,151	878,105	720,284
Income (loss) from operations									268,853	185,516	(33,944)
Earnings from consolidated affiliates									44,425	15,963	1,501
Gain on sale of unconsolidated affiliate											6,801
Other (expense) income, net									(13,501)	(16,032)	(12,692)
Income before provision for income tax									299,777	185,447	(38,334)
Provision for income tax expense									10,907	1,890	(40,577)
Net income (loss)									288,870	183,557	2,243
Net income (loss) attributable to the Partnership									288,870	183,557	2,243
Non-Guarantor Subsidiaries
Condensed Consolidating Statements of Operations
Total revenue									265,395	124,010	51,943
Operating expenses:
Purchased product costs									84,198	16,937	12,557
Facility expenses									39,171	28,566	16,834
Selling, general and administrative expenses									9,011	6,317	2,878
Depreciation and amortization									42,198	27,054	10,984
Other operating expenses									284	291	17
Impairment of long-lived assets											5,855
Total operating expenses									174,862	79,165	49,125
Income (loss) from operations									90,533	44,845	2,818
Other (expense) income, net									(558)	1,753	3,997
Income before provision for income tax									89,975	46,598	6,815
Net income (loss)									89,975	46,598	6,815
Net income (loss) attributable to the Partnership									89,975	46,598	6,815
Consolidating Adjustments
Operating expenses:
Facility expenses									(665)	(652)	(377)
Selling, general and administrative expenses									(5,700)	(4,947)	(3,457)
Depreciation and amortization									(708)	(398)	(151)
Total operating expenses									(7,073)	(5,997)	(3,985)
Income (loss) from operations									7,073	5,997	3,985
Earnings from consolidated affiliates									(333,295)	(199,520)	(3,744)
Other (expense) income, net									(13,603)	(11,566)	(9,669)
Income before provision for income tax									(339,825)	(205,089)	(9,428)
Net income (loss)									(339,825)	(205,089)	(9,428)
Net income attributable to non-controlling interest									(45,550)	(30,635)	(5,314)
Net income (loss) attributable to the Partnership									$ (385,375)	$ (235,724)	$ (14,742)