| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 04/20/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/21/18 | 4 | Statement of changes in beneficial ownership of securities |   | 2 | |
| 03/21/18 | 3 | Initial statement of beneficial ownership of securities |   | 2 | |
| 03/15/18 | 4 | Statement of changes in beneficial ownership of securities |   | 1 | |
| 03/15/18 | 4 | Statement of changes in beneficial ownership of securities |   | 1 |