| Date | Form | Description | Docs | XBRL | Pages |
| 12/07/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 12/07/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 12/07/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 12/07/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 11/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 11/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 11/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 11/08/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 | |
| 10/25/11 | DEF 14A | Definitive proxy statements |
|
47 | |
| 10/20/11 | 4 | Statement of changes in beneficial ownership of securities |
|
1 |