| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/09/13 | 8-K | Form 8-K: Current report | 41 | |
| 04/09/13 | FWP | Form FWP: Filing under Securities Act Rules 163/433 of free writing prospectuses | 1 | |
| 04/09/13 | 424B5 | Form 424B5: Prospectus [Rule 424(b)(5)] | 66 | |
| 04/05/13 | 8-K | Form 8-K: Current report | 71 | |
| 04/02/13 | S-3ASR | Form S-3ASR: Automatic shelf registration statement of securities of well-known seasoned issuers | 133 | |
| 04/01/13 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 77 | |
| 02/27/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/27/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/27/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 02/27/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
