| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/01/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/29/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/15/13 | ARS | Annual report to security holders |
|
1 | |
| 04/12/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 04/12/13 | DEF 14A | Definitive proxy statements |
|
36 | |
| 04/03/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/29/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/21/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/19/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/15/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |