Equity (Details Textuals) (USD $)					12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Convertible Preferred Stock [Member]	Dec. 31, 2010 Convertible Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]
Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Preferred stock, shares issued	84,000,000	84,000,000	6,857,000	6,857,000
Preferred stock, shares outstanding	84,000,000	84,000,000			24,000,000	60,000,000
Preferred stock dividends fixed rate						6.50%
Preferred Stock, Dividend Payment Rate, Variable					(i) 1.00% above three-month LIBOR on the related LIBOR determination date; or (ii) 4.00%.
Preferred stock, par value	$ 0.01	$ 0.01		$ 0.01	$ 0.01	$ 0.01
Preferred stock, aggregate liquidation preference	$ 2,100	$ 2,100		$ 0.01	$ 25	$ 25
Preferred stock, shares authorized	200,000,000	200,000,000
Preferred stock redemption price per share	$ 25