| Date | Form | Description | XBRL |
|---|---|---|---|
| 04/09/07 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 04/13/06 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 04/14/05 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 04/21/04 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 04/01/04 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | |
| 04/08/03 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 04/12/02 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 10/09/01 | PREM14A | Form PREM14A: Preliminary proxy statement relating to a merger, acquisition, or disposition | |
| 04/20/01 | DEF 14A | Form DEF 14A: Definitive proxy statements | |
| 03/23/01 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition |