| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 03/28/13 | SC 13D/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 11 | ||
| 03/28/13 | SC 13D/A | Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities | 11 | ||
| 03/27/13 | 8-K | Current report filing | 105 | ||
| 03/26/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 03/26/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 03/26/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 03/26/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 03/26/13 | 424B5 | Prospectus filed pursuant to Rule 424(b)(5) | 118 | ||
| 03/25/13 | 4 | Statement of changes in beneficial ownership of securities | 1 | ||
| 03/25/13 | FWP | Filing under Securities Act Rules 163/433 of free writing prospectuses | 2 |