Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 44,340	$ 187,042
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	215,902	127,472
Amortization of intangible assets	47,925	38,280
Loss on redemption of debt	38,455
Amortization of deferred financing costs and discount	5,198	3,943
Accretion of asset retirement obligations	669	536
Amortization of deferred contract cost	234	234
Phantom unit compensation expense	11,907	11,579
Equity in earnings from unconsolidated affiliate	(1,561)	(2,254)
Distributions from unconsolidated affiliate	4,952	6,624
Unrealized loss (gain) on derivative instruments	1,222	(101,815)
(Gain) loss on disposal of property, plant and equipment	(35,758)	2,983
Deferred income taxes	23,087	39,396
Changes in operating assets and liabilities, net of working capital acquired:
Receivables	(37,491)	32,248
Inventories	(10,881)	7,590
Other current assets	(4,963)	(12,866)
Accounts payable and accrued liabilities	29,664	36,837
Other long-term assets	(21,135)	(676)
Other long-term liabilities	18,893	8,631
Net cash provided by operating activities	330,659	385,784
Cash flows from investing activities:
Restricted cash	15,500	1,003
Capital expenditures	(2,176,719)	(1,239,705)
Investment in unconsolidated affiliates	(8,530)	(839)
Acquisition of business, net of cash acquired	(225,210)	(506,797)
Proceeds from disposal of property, plant and equipment	208,652	589
Net cash flows used in investing activities	(2,186,307)	(1,745,749)
Cash flows from financing activities:
Proceeds from public equity offerings, net	1,039,849	1,191,066
Proceeds from Credit Facility		511,100
Payments of Credit Facility		(577,100)
Proceeds from long-term debt	1,000,000	742,613
Payments of long-term debt	(501,112)
Payments of premiums on redemption of long-term debt	(31,516)
Payments for debt issuance costs, deferred financing costs and registration costs	(14,046)	(14,184)
Contributions from non-controlling interest	685,219	56,101
Payments of SMR liability	(1,661)	(1,525)
Cash paid for taxes related to net settlement of share-based payment awards	(5,212)	(8,061)
Excess tax benefits related to share-based compensation	650	2,216
Payment of distributions to common unitholders	(333,946)	(244,169)
Payment of distributions to non-controlling interest	(180)	(71)
Net cash flows provided by financing activities	1,838,045	1,657,986
Net (decrease) increase in cash and cash equivalents	(17,603)	298,021
Cash and cash equivalents at beginning of year	345,756	114,332
Cash and cash equivalents at end of period	$ 328,153	$ 412,353