| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 05/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/04/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/02/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 05/02/12 | Statement of changes in beneficial ownership of securities |
|
2 | ||
| 04/27/12 | Quarterly report pursuant to Section 13 or 15(d) |
|
  |
28 | |
| 04/24/12 | Current report filing |
|
9 | ||
| 03/29/12 | Annual report to security holders |
|
95 | ||
| 03/27/12 | Current report filing |
|
9 | ||
| 03/26/12 | Current report filing |
|
6 | ||
| 03/21/12 | Definitive proxy statements |
|
58 |