| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 07/31/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 07/31/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 07/27/12 | Automatic shelf registration statement of securities of well-known seasoned issuers | 
       
   | 
  20 | ||
| 07/27/12 | Current report filing | 
       
   | 
  5 | ||
| 07/27/12 | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                         | 
  33 | |
| 07/24/12 | Current report filing | 
       
   | 
  8 | ||
| 07/24/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 07/24/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 07/24/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 07/24/12 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 


