| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/19/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 04/12/13 | ARS | Annual report to security holders | 110 | ||
| 04/12/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 04/12/13 | DEFA14A | Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 5 | ||
| 04/12/13 | DEF 14A | Definitive proxy statements | 48 | ||
| 04/11/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 04/08/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 04/04/13 | SC 13D/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 16 | ||
| 04/02/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 04/02/13 | 4 | Statement of changes in beneficial ownership of securities | 1 |