| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 07/28/16 | Current report filing | 
       
   | 
  8 | ||
| 06/15/16 | Annual report of employee stock purchase, savings and similar plans | 
       
   | 
  16 | ||
| 06/01/16 | Current report filing | 
       
   | 
  5 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 05/31/16 | Statement of changes in beneficial ownership of securities | 
       
   | 
  3 | 
