| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/19/17 | DEF 14A | Form DEF 14A: Definitive proxy statements | 42 | |
| 04/22/16 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 4 | |
| 04/22/16 | DEF 14A | Form DEF 14A: Definitive proxy statements | 47 | |
| 12/04/15 | PRER14A | Form PRER14A: Preliminary revised proxy soliciting materials | 72 | |
| 12/04/15 | DEFC14A | Form DEFC14A: Definitive proxy statement in connection with contested solicitations | 60 | |
| 12/04/15 | DEFC14A | Form DEFC14A: Definitive proxy statement in connection with contested solicitations | 48 | |
| 12/03/15 | PRRN14A | Form PRRN14A: Revised preliminary proxy statement filed by non-management | 48 | |
| 12/02/15 | PRRN14A | Form PRRN14A: Revised preliminary proxy statement filed by non-management | 48 | |
| 12/02/15 | PRER14A | Form PRER14A: Preliminary revised proxy soliciting materials | 60 | |
| 11/30/15 | PRER14A | Form PRER14A: Preliminary revised proxy soliciting materials | 59 |