| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/01/13 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 77 | |
| 04/06/12 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 5 | |
| 04/06/12 | DEF 14A | Form DEF 14A: Definitive proxy statements | 69 | |
| 03/27/12 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 43 | |
| 04/01/11 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 4 | |
| 04/01/11 | DEF 14A | Form DEF 14A: Definitive proxy statements | 73 | |
| 04/01/10 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 4 | |
| 04/01/10 | DEF 14A | Form DEF 14A: Definitive proxy statements | 60 | |
| 04/03/09 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 4 | |
| 04/03/09 | DEF 14A | Form DEF 14A: Definitive proxy statements | 44 |
