Supplemental Condensed Consolidating Financial Information (Details 3) (USD $) In Thousands, unless otherwise specified	0 Months Ended									12 Months Ended
	Nov. 19, 2012	Aug. 17, 2012	May 14, 2012	Mar. 16, 2012	Jan. 13, 2012	Dec. 19, 2011	Oct. 13, 2011	Jul. 13, 2011	Jan. 14, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Condensed Consolidating Statements of Cash Flows
Net cash (used in) provided by operating activities										$ 435,650	$ 492,013	$ 410,403
Cash flows from investing activities:
Restricted cash										15,500	(9,497)	2,006
Capital expenditures										(3,046,956)	(1,950,324)	(550,839)
Acquisition of business, net of cash acquired										(222,888)	(506,797)	(230,728)
Investment in unconsolidated affiliates										(17,521)	(6,066)
Proceeds from disposal of property, plant and equipment										209,303	596	3,450
Net cash flows used in investing activities										(3,062,562)	(2,472,088)	(776,111)
Cash flows from financing activities:
Proceeds from public equity offerings, net	437,000	338,000	427,000	388,000	38,000	521,000	251,000	185,000	138,000	1,698,066	1,634,081	1,095,488
Proceeds from Credit Facility											511,100	1,182,200
Payments of Credit Facility											(577,100)	(1,116,200)
Proceeds from long-term debt										1,000,000	742,613	1,199,000
Payments of long-term debt										(501,112)		(693,888)
Payments of premiums on redemption of long-term debt										(31,516)		(71,377)
Payments for debt issuance costs, deferred financing costs and registration costs										(14,046)	(14,720)	(20,163)
Acquisition of non-controlling interest, including transaction costs												(997,601)
Contributions from non-controlling interest										685,219	264,781	126,392
Payments of SMR liability										(2,241)	(2,058)	(1,875)
Share-based payment activity										(5,210)	(7,160)	(5,270)
Payments of distributions										(462,699)	(340,038)	(281,203)
Net cash flows provided by financing activities										2,366,461	2,211,499	415,503
Net (decrease) increase in cash and cash equivalents										(260,451)	231,424	49,795
Cash and cash equivalents at beginning of year										345,756	114,332	64,537
Cash and cash equivalents at end of year										85,305	345,756	114,332
Reportable legal entities | Parent
Condensed Consolidating Statements of Cash Flows
Net cash (used in) provided by operating activities										(178,266)	(154,328)	(126,782)
Cash flows from investing activities:
Capital expenditures										(789)	(138)	(789)
Equity investments in consolidated affiliates										(59,468)	(55,283)	(47,295)
Distributions from consolidated affiliates										95,548	75,431	50,718
Investment in intercompany notes, net										73,800	(12,300)	(37,990)
Net cash flows used in investing activities										109,091	7,710	(35,356)
Cash flows from financing activities:
Proceeds from public equity offerings, net										1,698,066	1,634,081	1,095,488
Proceeds from Credit Facility											511,100	1,182,200
Payments of Credit Facility											(577,100)	(1,116,200)
Proceeds from long-term debt										1,000,000	742,613	1,199,000
Payments of long-term debt										(501,112)		(693,888)
Payments of premiums on redemption of long-term debt										(31,516)		(71,377)
Payments for debt issuance costs, deferred financing costs and registration costs										(14,046)	(14,720)	(20,163)
Acquisition of non-controlling interest, including transaction costs												(997,601)
Share-based payment activity										(5,210)	(8,067)	(6,354)
Payments of distributions										(462,488)	(339,967)	(218,398)
Intercompany advances, net										(1,824,310)	(1,591,329)	(190,547)
Net cash flows provided by financing activities										(140,616)	356,611	162,160
Net (decrease) increase in cash and cash equivalents										(209,791)	209,993	22
Cash and cash equivalents at beginning of year										210,015	22
Cash and cash equivalents at end of year										224	210,015	22
Reportable legal entities | Guarantor Subsidiaries
Condensed Consolidating Statements of Cash Flows
Net cash (used in) provided by operating activities										368,551	468,671	414,844
Cash flows from investing activities:
Capital expenditures										(182,339)	(304,190)	(162,517)
Equity investments in consolidated affiliates										(2,200,000)	(1,880,279)	(252,367)
Acquisition of business, net of cash acquired										(222,888)		(230,728)
Investment in unconsolidated affiliates										(17,521)	(5,227)
Distributions from consolidated affiliates										517,635	140,362	64,569
Proceeds from disposal of property, plant and equipment										757	1,732	606
Net cash flows used in investing activities										(2,104,356)	(2,047,602)	(580,437)
Cash flows from financing activities:
Proceeds (payments) related to intercompany financing, net										(73,800)	12,300	14,990
Contributions from parent and affiliates										59,468	55,283	47,295
Payments of SMR liability										(2,241)	(2,058)	(1,875)
Share-based payment activity											907	1,084
Payments of distributions										(95,548)	(75,431)	(50,718)
Intercompany advances, net										1,824,310	1,591,329	190,547
Net cash flows provided by financing activities										1,712,189	1,582,330	201,323
Net (decrease) increase in cash and cash equivalents										(23,616)	3,399	35,730
Cash and cash equivalents at beginning of year										102,979	99,580	63,850
Cash and cash equivalents at end of year										79,363	102,979	99,580
Reportable legal entities | Non-Guarantor Subsidiaries
Condensed Consolidating Statements of Cash Flows
Net cash (used in) provided by operating activities										222,107	158,412	129,584
Cash flows from investing activities:
Restricted cash										15,500	(9,497)	2,006
Capital expenditures										(2,838,677)	(1,626,809)	(399,550)
Acquisition of business, net of cash acquired											(506,797)
Proceeds from disposal of property, plant and equipment										208,546	77	7,617
Net cash flows used in investing activities										(2,614,631)	(2,143,026)	(389,927)
Cash flows from financing activities:
Proceeds (payments) related to intercompany financing, net										(1,893)	(1,142)	23,000
Contributions from parent and affiliates										2,200,000	1,879,440	252,367
Contributions from non-controlling interest										685,219	264,781	126,392
Payments of distributions										(517,846)	(140,433)	(127,373)
Net cash flows provided by financing activities										2,365,480	2,002,646	274,386
Net (decrease) increase in cash and cash equivalents										(27,044)	18,032	14,043
Cash and cash equivalents at beginning of year										32,762	14,730	687
Cash and cash equivalents at end of year										5,718	32,762	14,730
Consolidating Adjustments
Condensed Consolidating Statements of Cash Flows
Net cash (used in) provided by operating activities										23,258	19,258	(7,243)
Cash flows from investing activities:
Capital expenditures										(25,151)	(19,187)	12,017
Equity investments in consolidated affiliates										2,259,468	1,935,562	299,662
Investment in unconsolidated affiliates											(839)
Distributions from consolidated affiliates										(613,183)	(215,793)	(115,287)
Investment in intercompany notes, net										(73,800)	12,300	37,990
Proceeds from disposal of property, plant and equipment											(1,213)	(4,773)
Net cash flows used in investing activities										1,547,334	1,710,830	229,609
Cash flows from financing activities:
Proceeds (payments) related to intercompany financing, net										75,693	(11,158)	(37,990)
Contributions from parent and affiliates										(2,259,468)	(1,934,723)	(299,662)
Payments of distributions										613,183	215,793	115,286
Net cash flows provided by financing activities										$ (1,570,592)	$ (1,730,088)	$ (222,366)