Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of operating assets and liabilities
Decrease (increase) in restricted cash	$ 29,467	$ 4,907	$ 25,827
Decrease (increase) in accounts receivable	11,172	(129,102)	28,568
Decrease (increase) in receivable from affiliates	(61,095)	230	(6,071)
Decrease (increase) in inventories	(11,352)	(936)	(8,908)
Decrease (increase) in derivatives and margin deposits	1,012	(1,245)	14,287
Decrease (increase) in other current assets	9,361	4,197	(7,214)
Increase (decrease) in other noncurrent assets	(137)	(2,467)	1,874
Increase (decrease) in accounts payable and accrued liabilities	31,030	114,776	(9,446)
Increase (decrease) in payable to affiliates	62,279	(6,871)	6,614
Increase (decrease) in payables to pre-petition creditors	(29,609)	(5,206)	(34,490)
Increase (decrease) in other noncurrent liabilities	(2,541)	2,500	4,115
Total changes in operating assets and liabilities	$ 39,861	$ (14,283)	$ 11,408