| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/03/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 04/03/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 04/03/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 03/30/17 | 8-K | Current report filing | 
       
   | 
  8 | |
| 03/16/17 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 
       
   | 
  5 | |
| 03/16/17 | DEF 14A | Definitive proxy statements | 
       
   | 
  65 | |
| 03/01/17 | 10-K | Annual report pursuant to Section 13 and 15(d) | 
       
   | 
  
                                           | 
  112 | 
| 02/24/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 02/24/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  1 | |
| 02/24/17 | 4 | Statement of changes in beneficial ownership of securities | 
       
   | 
  2 | 



