Summary of Significant Accounting Policies (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Numerator:
Net income (loss) available to common shareholders	$ 9,036	$ (165,534)
Numerator for diluted earnings per share- income (loss) available to common stockholders after assumed conversions of debentures and exercise of warrants	$ 9,036	$ (165,534)
Denominator
Weighted average shares used to compute basic EPS (in shares)	2,789,315,439	652,829,594
Denominator for diluted earnings per share-adjusted weighted average shares and assumed conversions and exercise of options (in shares)	3,302,657,994	652,829,594
Basic earnings per share (in dollars per share)	$ 0.003	$ (0.25)
Diluted earnings per share (in dollars per share)	$ 0.003	$ (0.25)