| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 7, 2021 | Jun 3, 2021 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2021 | May 11, 2021 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 3, 2021 | Mar 1, 2021 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jun 9, 2020 | Jun 3, 2020 | 001-09810 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 13, 2020 | May 11, 2020 | 001-09810 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 6, 2019 | Nov 1, 2019 | 001-09810 |