| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/25/13 | 8-K | Current report filing |
|
5 | |
| 04/24/13 | ARS | Annual report to security holders |
|
60 | |
| 04/22/13 | DEF 14A | Definitive proxy statements |
|
16 | |
| 02/15/13 | 10-K | Annual report pursuant to Section 13 and 15(d) |
|
   |
40 |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 | |
| 02/07/13 | 4 | Statement of changes in beneficial ownership of securities |
|
2 |