Condensed Consolidated Statements Of Operations (Parenthetical) (USD $) In Thousands	3 Months Ended		4 Months Ended	9 Months Ended	4 Months Ended
	Sep. 30, 2011 Successor [Member]	Sep. 30, 2010 Successor [Member]	Sep. 30, 2010 Successor [Member]	Sep. 30, 2011 Successor [Member]	May 25, 2010 Predecessor [Member]
Gas sales, related party amounts	$ 3,840	$ 1,680	$ 2,127	$ 15,479	$ 0
NGL sales, related party amounts	103,892	51,062	69,116	253,933	0
Gathering, transportation and other fees, related party amounts	6,141	5,680	7,766	17,611	12,200
Other revenues, related party amounts	2,665	1,111	1,111	7,455	0
Cost of sales, related party amounts	5,049	4,768	7,049	16,070	6,564
General and administrative, related party amounts	4,225	2,500	3,333	12,354	0
Net income from operations of east Texas assets, gain on disposal		$ 20	$ 20