| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/07/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 05/06/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 05/01/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 04/30/13 | ARS | Form ARS: Annual report to security holders | 112 | |
| 04/26/13 | DEF 14A | Form DEF 14A: Definitive proxy statements | 37 | |
| 04/25/13 | 8-K | Form 8-K: Current report filing | 7 | |
| 04/03/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 3 | |
| 03/29/13 | 10-K | Form 10-K: Annual report pursuant to Section 13 and 15(d) |
|
113 |
| 03/26/13 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/25/13 | 3 | Form 3: Initial statement of beneficial ownership of securities | 1 |