Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)

v2.4.0.8
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
Jun. 30, 2013
Dec. 31, 2012
Convertible senior notes interest rate 3.00% 3.00%
Series D Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Series D Preferred stock, shares authorized (in shares) 2,000,000 2,000,000
Series D Preferred stock, shares issued (in shares) 0 1,129,032
Series D Preferred stock, shares outstanding (in shares) 0 1,129,032
Liquidation preference, preferred stock value $ 0 $ 30,595,000
Common Stock, par value (in dollars per share) $ 0.01 $ 0.01
Common Stock, shares authorized (in shares) 500,000,000 500,000,000
Common Stock, shares issued (in shares) 339,045,029 305,560,763
Treasury stock, shares (in shares) 2,293,056 2,293,056
Total assets in variable interest entity 6,000,000 5,600,000
Total liability in variable interest entity $ 7,800,000 $ 5,500,000
Series A Preferred Stock
   
Preferred Stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, shares authorized (in shares) 4,000,000 4,000,000
Preferred Stock, shares issued (in shares) 0 0
Preferred Stock, shares outstanding (in shares) 0 0
Series C Preferred Stock
   
Preferred Stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred Stock, shares authorized (in shares) 500,000 500,000
Preferred Stock, shares issued (in shares) 0 0
Preferred Stock, shares outstanding (in shares) 0 0