| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 10/11/19 | Current report filing | 
     PDF   
   | 
  
           ZIP        | 
  5 | |
| 08/26/19 | Current report filing | 
     PDF   
   | 
  
           ZIP        | 
  95 | |
| 08/21/19 | Prospectus filed pursuant to Rule 424(b)(5) | 
     PDF   
   | 
  53 | ||
| 08/19/19 | Filing under Securities Act Rules 163/433 of free writing prospectuses | 
     PDF   
   | 
  8 | ||
| 08/19/19 | Prospectus filed pursuant to Rule 424(b)(5) | 
     PDF   
   | 
  52 | ||
| 08/08/19 | SEC-generated letter | 
     PDF   
   | 
  1 | ||
| 08/05/19 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 | ||
| 08/01/19 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 | ||
| 08/01/19 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 | ||
| 07/31/19 | Statement of changes in beneficial ownership of securities | 
     PDF   
   | 
  1 |