| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/13/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 02/13/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 02/13/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 02/13/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 02/08/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 01/24/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 01/24/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 01/24/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 01/24/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | ||
| 01/24/19 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 
 
			