| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/13/12 | DEF 14A | Form DEF 14A: Definitive proxy statements | 74 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/11/12 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 |
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