| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/21/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/21/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/21/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/21/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/21/11 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/14/11 | DEF 14A | Definitive proxy statements |   | 50 | |
| 03/25/11 | 8-K | Current report filing |   | 3 | |
| 03/22/11 | POS EX | Post-effective amendment filed solely to add exhibits to a registration statement |   | 26 | |
| 03/22/11 | 497AD | Filing by certain investment companies of Securities Act Rule 482 advertising in accordance with Securities Act Rule 497 |   | 2 | |
| 03/22/11 | 497 | Definitive materials filed under paragraph (a), (b), (c), (d), (e) or (f) of Securities Act Rule 497 |   | 378 | 
