| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 07/19/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 07/09/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  1 | |
| 07/03/18 | 8-K | Current report filing | 
       
   | 
  3 | |
| 06/28/18 | 11-K | Annual report of employee stock purchase, savings and similar plans | 
       
   | 
  19 | |
| 05/23/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/15/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 05/04/18 | 8-K | Current report filing | 
       
   | 
  34 | |
| 05/04/18 | 10-Q | Quarterly report pursuant to Section 13 or 15(d) | 
       
   | 
  
                                | 
  48 | 
| 04/27/18 | 8-K | Current report filing | 
       
   | 
  3 | |
| 04/23/18 | 8-K | Current report filing | 
       
   | 
  12 | 




