Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net (loss) income	$ (31,665)	$ 115,012
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation	370,250	311,079
Amortization of intangible assets	47,100	48,256
Impairment expense	25,523	0
Loss on redemption of debt	117,889	0
Amortization of deferred financing costs and debt discount	4,829	5,742
Accretion of asset retirement obligations	695	504
Amortization of deferred contract cost	52	1,103
Phantom unit compensation expense	14,861	13,989
Equity in (earnings) loss from unconsolidated affiliates	(11,473)	2,026
Distributions from unconsolidated affiliates	46,485	7,186
Unrealized loss (gain) on derivative instruments	3,361	(18,162)
Loss on disposal of property, plant and equipment	3,064	591
Deferred income taxes	(13,637)	20,271
Changes in operating assets and liabilities:
Receivables	29,479	(47,570)
Receivables from unconsolidated affiliates	(10,977)	3,682
Inventories	(1,504)	(23,437)
Other current assets	26,571	2,094
Accounts payable and accrued liabilities	(40,225)	35,629
Payables to unconsolidated affiliates	(2,687)	7,147
Other long-term assets	156	218
Other long-term liabilities	(9,698)	10,720
Net cash flows provided by operating activities	568,449	496,080
Cash flows from investing activities:
Restricted cash	10,000	0
Capital expenditures	(1,230,979)	(1,771,900)
Investment in unconsolidated affiliates	(145,311)	(205,855)
Proceeds from sale of equity interest in unconsolidated affiliate	0	341,137
Proceeds from disposal of property, plant and equipment	2,735	21,573
Net cash flows used in investing activities	(1,363,555)	(1,615,045)
Cash flows from financing activities:
Proceeds from public equity offerings, net	237,929	1,054,195
Proceeds from Credit Facility	1,844,900	2,484,400
Payments of Credit Facility	(1,280,500)	(1,958,500)
Proceeds from long-term debt	1,848,875	0
Payments of long-term debt	(1,280,000)	0
Payments of premiums on redemption of long-term debt	(103,209)	0
Payments for debt issuance costs, deferred financing costs and registration costs	(20,558)	(2,045)
Proceeds from sale of equity interest in joint venture	11,319	0
Contributions from non-controlling interest	30,712	0
Payments of SMR liability	(2,001)	(1,823)
Cash paid for taxes related to net settlement of share-based payment awards	(6,121)	(8,947)
Payment of distributions to common unitholders	(516,032)	(434,654)
Payment of distributions to non-controlling interest	(51,028)	(930)
Net cash flows provided by financing activities	714,286	1,131,696
Net (decrease) increase in cash and cash equivalents	(80,820)	12,731
Cash and cash equivalents at beginning of period	108,887	85,305
Cash and cash equivalents at end of period	$ 28,067	$ 98,036