| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/19/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/19/12 | Issuer tender offer statement |
|
9 | ||
| 03/16/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/16/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/16/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 03/15/12 | Initial statement of beneficial ownership of securities |
|
2 | ||
| 03/15/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 03/08/12 | Statement of changes in beneficial ownership of securities |
|
2 |
