XML 46 R39.htm IDEA: XBRL DOCUMENT v2.4.0.8
Common and Preferred Stock - Additional Information (Detail) (USD $)
 1 Months Ended 9 Months Ended 272 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended
Oct. 31, 2012
Feb. 29, 2012
Feb. 28, 2012
Sep. 30, 2013
Sep. 30, 2013
Dec. 31, 2012
Jun. 30, 2012
Feb. 28, 2012
Warrant Liability
Sep. 30, 2013
Mann Group
Oct. 31, 2012
Mann Group
Oct. 31, 2013
Mann Group
Subsequent Event
Sep. 30, 2013
Mann Group
Subsequent Event
Oct. 31, 2012
Mann Group
Private Placement
Feb. 28, 2012
Related Party
Sep. 30, 2013
Senior convertible notes due August 15 2015
Dec. 31, 2012
Senior convertible notes due August 15 2015
Aug. 18, 2010
Senior convertible notes due August 15 2015
Class of Stock [Line Items]                                  
Common stock, shares authorized       550,000,000 550,000,000 550,000,000                      
Common stock, par value       $ 0.01 $ 0.01 $ 0.01                      
Undesignated preferred stock, shares authorized       10,000,000 10,000,000                        
Common stock, shares issued       309,993,285 309,993,285 286,035,082                      
Capital stock authorized     31,250,000 309,993,285 309,993,285 286,035,082 31,250,000   31,250,000                
Common stock loaned under share lending agreement, shares       9,000,000 9,000,000 9,000,000                      
Principal amount                             $ 100,000,000 $ 100,000,000 $ 100,000,000
Nominal lending fee       $ 0.01                          
Number of Unit Sold in an Underwritten public offering     35,937,500                            
Underwritten public offering     86,300,000                            
Units sold composition description                           Each unit consisting of one share of common stock and a warrant to purchase 0.6 of a share of common stock.      
Number of shares of common stock purchased by each warrant   0.6 0.6                            
Net proceeds from offering     80,600,000                            
Rate at which warrants are exercisable 2.60 2.40           2.40                  
Warrant expiration date     2016-02                            
Restricted Stock Agreed to be Purchased by Lender     77,200,000             107,400,000              
Proceeds from exercise warrants   4,500,000 4,500,000                            
Warrants remained unexercised   47,300,000 47,300,000           45,000,000                
Underwritten public offering 46,000,000                       40,000,000        
Net proceeds from public offering 92,000,000                                
Number of shares in each units issued 1                                
Warrant entitles the holder to purchase a share of common stock 0.75                                
Net proceeds from public offering 86,300,000 80,600,000                              
Exercise of warrants for common stock       49,170,000 49,170,000       44,700,000   45,000,000 45,000,000          
Principal indebtedness cancelled under the loan arrangement as payment for the aggregate exercise price of The Mann Group Warrants                     $ 78,000,000