Supplemental Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Supplemental Cash Flow Information [Abstract]
Cash paid during the period for interest	$ 18,091		$ 6,088
Change in accrued capital expenditures	889		6,830
General and administrative expense allocated from the Fund			8,612
Distributions to the Predecessor			(11,124)
Amortization of increasing rate distributions	$ 3,829	[1]	$ 3,676	[1]

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