Supplemental Cash Flow Information (Tables)

6 Months Ended

Jun. 30, 2013

Supplemental Cash Flow Elements [Abstract]

Schedule of cash flow, supplemental disclosures

Supplemental disclosure of non-cash activities is as follows (in thousands):

	Six Months Ended June 30,
	2013		2012
Assets received for deposit paid in prior period	$	40,000	$	—
Capital expenditures included in accounts payable	11,157		21,086
Capital lease obligations	5,026		—
Receivable from affiliate for capital expenditures	1,120		—
Working capital requirements retained by Sponsor	—		4,196