| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 10/15/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 09/19/19 | Current report filing | 
       
   | 
  
                  | 
  3 | |
| 09/09/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 09/09/19 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 
       
   | 
  16 | 

