| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/24/18 | 8-K | Current report filing | 
       
   | 
  14 | |
| 04/13/18 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 
       
   | 
  5 | |
| 04/13/18 | DEF 14A | Definitive proxy statements | 
       
   | 
  49 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | |
| 04/04/18 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  4 | |
| 04/02/18 | 8-K | Current report filing | 
       
   | 
  5 | |
| 03/06/18 | 8-K | Current report filing | 
       
   | 
  4 | |
| 03/01/18 | 10-K | Annual report pursuant to Section 13 and 15(d) | 
       
   | 
  
                                | 
  127 | 
| 02/27/18 | 8-K | Current report filing | 
       
   | 
  38 | 




