| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/29/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/29/12 | Current report filing |
|
3 | ||
| 02/28/12 | Current report filing |
|
37 | ||
| 02/24/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/23/12 | Annual report pursuant to Section 13 and 15(d) |
|
  |
85 | |
| 02/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/22/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/21/12 | Statement of changes in beneficial ownership of securities |
|
1 | ||
| 02/14/12 | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions |
|
3 |