| Date | Form | Description | Docs | XBRL | Pages |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
4 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/20/13 | 4 | Statement of changes in beneficial ownership of securities |
|
4 | |
| 05/16/13 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
|
2 | |
| 05/14/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 05/14/13 | 4 | Statement of changes in beneficial ownership of securities |
|
4 |
