| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 03/05/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/28/12 | 8-K | Form 8-K: Current report filing | 3 | |
| 02/28/12 | 424B5 | Form 424B5: Prospectus filed pursuant to Rule 424(b)(5) | 71 | |
| 02/27/12 | 10-K | Form 10-K: Annual report pursuant to Section 13 and 15(d) |
|
120 |
| 02/27/12 | S-3ASR | Form S-3ASR: Automatic shelf registration statement of securities of well-known seasoned issuers | 79 | |
| 02/23/12 | 8-K | Form 8-K: Current report filing | 4 | |
| 02/21/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/21/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/21/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |