Income Taxes Reconciliation of effective income tax rate (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract]
U.S. statutory tax rate	(35.00%)	(35.00%)	[1]	(35.00%)	[1]
State tax benefit (net of federal benefits)	(2.70%)	(6.20%)	[1]	(9.20%)	[1]
Foreign income tax provision	0.00%	0.00%	[1]	0.00%	[1]
Deferred tax assets valuation reserve	33.20%	42.10%	[1]	26.00%	[1]
Loss on early extinguishment of debt	0.00%	0.00%	[1]	17.80%	[1]
Other	4.50%	(0.90%)	[1]	0.40%	[1]
Effective tax rate as reported	0.00%	0.00%	[1]	0.00%	[1]

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