| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/17/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/10/13 | 10-Q | Form 10-Q: Quarterly report pursuant to Section 13 or 15(d) |
|
52 |
| 05/01/13 | 8-K | Form 8-K: Current report filing | 26 | |
| 04/10/13 | ARS | Form ARS: Annual report to security holders | 19 | |
| 04/09/13 | DEFR14A | Form DEFR14A: Definitive revised proxy soliciting materials | 2 | |
| 04/08/13 | DEF 14A | Form DEF 14A: Definitive proxy statements | 53 | |
| 04/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |