| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/17/14 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 6 | |
| 04/17/14 | DEF 14A | Form DEF 14A: Definitive proxy statements | 89 | |
| 04/17/13 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 2 | |
| 04/10/13 | DEF 14A | Form DEF 14A: Definitive proxy statements | 36 | |
| 05/30/12 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 2 | |
| 05/29/12 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 2 | |
| 04/13/12 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 5 | |
| 04/12/12 | DEF 14A | Form DEF 14A: Definitive proxy statements | 82 | |
| 04/08/11 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 5 | |
| 04/08/11 | DEF 14A | Form DEF 14A: Definitive proxy statements | 35 |