| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/20/12 | Current report filing |
|
12 | ||
| 03/27/12 | Annual report to security holders |
|
62 | ||
| 03/14/12 | Definitive proxy statements |
|
47 | ||
| 03/14/12 | Annual report pursuant to Section 13 and 15(d) |
|
   |
78 | |
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
3 | ||
| 02/13/12 | Statement of changes in beneficial ownership of securities |
|
2 |
