| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/27/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/27/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/27/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/27/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/21/20 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 
       
   | 
  4 | |
| 04/15/20 | 8-K | Current report filing | 
       
   | 
  7 | |
| 04/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/03/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

