| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 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 | |
| 03/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/25/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/24/20 | 8-K | Current report filing | 
       
   | 
  14 | |
| 03/23/20 | DEF 14A | Definitive proxy statements | 
       
   | 
  65 | |
| 03/20/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 03/20/20 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 

