Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012
Supplemental Cash Flow Information [Abstract]
Cash paid during the period for interest	$ 41,315		$ 36,391
Change in accrued capital expenditures	9,452		(6,660)
General and administrative expense allocated from the Fund			26,785
Distributions to the Predecessor			(27,177)
Amortization of increasing rate distributions	$ 11,605	[1]	$ 11,140	[1]

[1] Amortization of increasing rate distributions is offset in the preferred unitholders’ capital account by a non-cash distribution