| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/20/13 | ARS | Annual report to security holders |
|
109 | |
| 03/20/13 | DEF 14A | Definitive proxy statements |
|
72 | |
| 03/06/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/06/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 03/01/13 | 3 | Initial statement of beneficial ownership of securities |
|
3 | |
| 03/01/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/28/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/27/13 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
173 |
