| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 06/19/12 | PRRN14A | Revised preliminary proxy statement filed by non-management | 
       
   | 
  22 | |
| 06/19/12 | UPLOAD | SEC-generated letter | 
       
   | 
  3 | |
| 06/15/12 | CORRESP | A correspondence can be sent as a document with another submission type or can be sent as a separate submission. | 
       
   | 
  6 | |
| 06/15/12 | PRER14A | Preliminary revised proxy soliciting materials | 
       
   | 
  74 | |
| 06/14/12 | UPLOAD | SEC-generated letter | 
       
   | 
  4 | |
| 06/14/12 | UPLOAD | SEC-generated letter | 
       
   | 
  6 | |
| 06/08/12 | PREC14A | Preliminary proxy statement in connection with contested solicitations | 
       
   | 
  72 | |
| 06/07/12 | 8-K | Current report filing | 
       
   | 
  2 | |
| 06/07/12 | DFAN14A | Definitive additional proxy soliciting materials filed by non-management including Rule 14(a)(12) material | 
       
   | 
  4 | |
| 06/07/12 | 3/A | Initial statement of beneficial ownership of securities | 
       
   | 
  2 | 

