| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/31/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/26/21 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 01/28/21 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  1 | |
| 11/09/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 09/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

