| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/11/17 | DEF 14A | Form DEF 14A: Definitive proxy statements | 67 | |
| 04/08/16 | DEF 14A | Form DEF 14A: Definitive proxy statements | 69 | |
| 04/06/15 | DEF 14A | Form DEF 14A: Definitive proxy statements | 89 | |
| 04/04/14 | DEF 14A | Form DEF 14A: Definitive proxy statements | 61 | |
| 04/05/13 | DEF 14A | Form DEF 14A: Definitive proxy statements | 67 | |
| 04/05/12 | DEF 14A | Form DEF 14A: Definitive proxy statements | 64 | |
| 03/13/12 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 63 | |
| 04/15/11 | DEF 14A | Form DEF 14A: Definitive proxy statements | 69 | |
| 04/16/10 | DEF 14A | Form DEF 14A: Definitive proxy statements | 77 | |
| 04/17/09 | DEF 14A | Form DEF 14A: Definitive proxy statements | 57 |