Consolidated Statements of Changes in Shareholders' Equity (Deficit) (USD $) In Thousands	Total	Predecessor Company	Predecessor Company Common Stock	Predecessor Company Additional Paid-in Capital	Predecessor Company Accumulated Deficit	Predecessor Company Treasury Stock	Predecessor Company Accumulated Other Comprehensive Income (Loss)	Successor Company	Successor Company Common Stock	Successor Company Additional Paid-in Capital	Successor Company Accumulated Deficit	Successor Company Treasury Stock	Successor Company Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2008		$ (493,375)	$ 88,169	$ 2,431,411	$ (2,683,867)	$ (256,277)	$ (72,811)
Net loss		(6,453,293)	0	0	(6,453,293)	0	0
Compensatory stock awards		11,393	0	11,393	0	0	0
Other adjustments		(92)	0	(255)	0	163	0
Amortization of gain on interest rate swaps, net of tax		5,606	0	0	0	0	5,606
Benefit plans adjustment, net of tax		10,713	0	0	0	0	10,713
Balance at Dec. 31, 2009		(6,919,048)	88,169	2,442,549	(9,137,160)	(256,114)	(56,492)
Net loss		6,920,009	0	0	6,920,009	0	0
Compensatory stock awards		613	0	613	0	0	0
Other adjustments		0	0	(103)	0	103	0
Amortization of gain on interest rate swaps, net of tax		1,083	0	0	0	0	1,083
Benefit plans adjustment, net of tax		(4,535)	0	0	0	0	(4,535)
Cancellation of Predecessor Company common stock		(88,169)	(88,169)	0	0	0	0
Elimination of Predecessor Company additional paid-in capital, accumulated deficit, treasury stock and accumulated other comprehensive loss		90,047	0	(2,443,059)	2,217,151	256,011	59,944
Balance at Jan. 31, 2010		0	0	0	0	0	0	1,450,784	50	1,450,734	0	0	0
Net loss								(923,592)	0	0	(923,592)	0	0
Compensatory stock awards								4,489	0	4,489	0	0	0
Amortization of gain on interest rate swaps, net of tax								0
Benefit plans adjustment, net of tax								(5,765)	0	0	0	0	(5,765)
Balance at Dec. 31, 2010	525,916							525,916	50	1,455,223	(923,592)	0	(5,765)
Net loss								(518,964)	0	0	(518,964)	0	0
Compensatory stock awards								4,842	0	4,842	0	0	0
Other adjustments								(8)	0	(8)	0	0	0
Amortization of gain on interest rate swaps, net of tax								0
Benefit plans adjustment, net of tax								(21,653)	0	0	0	0	(21,653)
Balance at Dec. 31, 2011	$ (9,867)							$ (9,867)	$ 50	$ 1,460,057	$ (1,442,556)	$ 0	$ (27,418)