CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Cash and cash equivalents	$ 347,899	$ 117,016
Restricted cash	25,500	26,193
Receivables	198,769	226,561
Other current assets	35,053	11,748
Property, plant and equipment	5,700,176	3,302,369
Accumulated depreciation	624,548	438,062
Accumulated amortization, intangibles	221,416	168,168
Accumulated amortization, deferred financing costs	18,567	13,194
Accumulated amortization, deferred contract cost	2,574	2,262
Other long-term assets	2,242	1,595
Accounts payable	320,645	179,871
Accrued liabilities	391,352	171,451
Long-term debt, discounts	8,061	1,050
Other long-term liabilities	134,340	121,356
Common Units
Common units issued (in units)	127,494	94,940
Common units outstanding (in units)	127,494	94,940
Class B Units
Common units issued (in units)	19,954	19,954
Common units outstanding (in units)	19,954	19,954
Total Variable Interest Entities
Cash and cash equivalents	33,727	2,684
Restricted cash	500	0
Receivables	1,591	1,569
Other current assets	264	169
Property, plant and equipment	568,063	156,808
Accumulated depreciation	24,636	15,551
Other long-term assets	102	102
Accounts payable	73,883	96
Accrued liabilities	110,746	1,144
Other long-term liabilities	$ 79	$ 73