| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 04/03/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Annual statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/03/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/27/12 | Annual report to security holders |
|
21 | ||
| 03/23/12 | Additional definitive proxy soliciting materials and Rule 14(a)(12) material |
|
5 |