Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Cash and cash equivalents	$ 299,412	$ 85,305
Receivables, net	306,101	299,107
Receivables from unconsolidated affiliate	13,977
Inventories	62,735	41,363
Other current assets	34,700	44,068
Property, plant and equipment	8,798,039	8,583,767
Accumulated depreciation	1,061,151	890,598
Investment in unconsolidated affiliates	629,927	75,627
Deferred contract cost	20,208	26,955
Accumulated amortization, deferred contract cost	3,042	2,886
Other long-term assets	3,008	3,887
Accounts payable	381,953	401,088
Accrued liabilities	338,588	437,847
Common Units
Common units issued (in units)	169,261	157,766
Common units outstanding (in units)	169,261	157,766
Class B Units
Common units issued (in units)	15,964	15,964
Common units outstanding (in units)	15,964	15,964
Total Variable Interest Entities
Cash and cash equivalents	225,020	4,114
Receivables, net	6,678	5,346
Receivables from unconsolidated affiliate	10,334	0
Inventories	6,838	2,553
Other current assets	4,475	5,527
Property, plant and equipment	1,115,941	1,655,789
Accumulated depreciation	35,192	33,583
Investment in unconsolidated affiliates	558,603	0
Accumulated amortization, intangibles	317,377	285,732
Accumulated amortization, deferred financing costs	28,220	25,083
Deferred contract cost	0	6,591
Accumulated amortization, deferred contract cost	0	0
Other long-term assets	5	658
Accounts payable	26,094	82,007
Accrued liabilities	33,482	112,029
Long-term debt, discounts	$ 6,563	$ 6,929