| Date | Form | Description | XBRL | |
|---|---|---|---|---|
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 06/01/18 | 3 | Initial statement of beneficial ownership of securities | 
       
   | 
  |
| 05/31/18 | 8-K | Current report filing | 
       
   | 
  |
| 05/23/18 | 8-K | Current report filing | 
       
   | 
  |
| 05/17/18 | 8-K | Current report filing | 
       
   | 
  |
| 05/17/18 | 8-K | Current report filing | 
       
   | 
  
