| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 07/02/15 | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/25/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | ||
| 06/11/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/29/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/28/15 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | 
