Debtors Condensed Combined Financial Statements (Debtors Condensed Combined Statement Of Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended									12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenues		$ 90,567	$ 86,445	$ 44,857	$ 94,163	$ 116,926	$ 36,901	$ 126,165	$ 57,672	$ 316,032	$ 337,664	$ 219,058
Cost of Operations										1,002,734	277,182	199,257
Income (Loss) From Operations		(452,330)	(252,067)	519	17,176	29,004	(7,998)	31,257	8,219	(686,702)	60,482	19,801
Other Income (Expense):
Interest expense	(18,600)									(108,934)	(104,516)	(84,122)
Unrealized gain on derivative instruments										10,818	(1,843)	5,141
Financing and transaction costs										(10,954)	(6,974)	(6,016)
Litigation settlement expense										(19,034)
Reorganization items		(43,200)								(43,222)
Other expense										338	355	(11,318)
Total Other Expense										(208,242)	(149,519)	(131,799)
Net Loss										(840,255)	(95,479)	(126,226)
Debtors [Member]
Revenues										6,729
Cost of Operations										79,086
Income (Loss) From Operations										(72,357)
Other Income (Expense):
Interest expense										(4,086)
Unrealized gain on derivative instruments										10,825
Financing and transaction costs										(9,721)
Litigation settlement expense										(14,034)
Reorganization items										(42,939)
Other expense										(5,944)
Total Other Expense										(65,899)
Net Loss										$ (138,256)